[llvm] 33e9086 - GlobalISel: Support lowering vector->vector G_BITCAST

Matt Arsenault via llvm-commits llvm-commits at lists.llvm.org
Mon Jun 15 04:36:37 PDT 2020


Author: Matt Arsenault
Date: 2020-06-15T07:36:30-04:00
New Revision: 33e908650100292b7b2c0d71b2daf0bfb490324f

URL: https://github.com/llvm/llvm-project/commit/33e908650100292b7b2c0d71b2daf0bfb490324f
DIFF: https://github.com/llvm/llvm-project/commit/33e908650100292b7b2c0d71b2daf0bfb490324f.diff

LOG: GlobalISel: Support lowering vector->vector G_BITCAST

Extract subvectors and cast to the result element type before
remerging.

Added: 
    

Modified: 
    llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
    llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-bitcast.mir
    llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-constant.mir
    llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-flat.mir
    llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-global.mir
    llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-local.mir
    llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-private.mir

Removed: 
    


################################################################################
diff  --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index 9ded95ea0164..61d92cb33e11 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -2170,15 +2170,57 @@ LegalizerHelper::lowerBitcast(MachineInstr &MI) {
   LLT DstTy = MRI.getType(Dst);
   LLT SrcTy = MRI.getType(Src);
 
-  if (SrcTy.isVector() && !DstTy.isVector()) {
+  if (SrcTy.isVector()) {
+    LLT SrcEltTy = SrcTy.getElementType();
     SmallVector<Register, 8> SrcRegs;
-    getUnmergePieces(SrcRegs, MIRBuilder, Src, SrcTy.getElementType());
+
+    if (DstTy.isVector()) {
+      int NumDstElt = DstTy.getNumElements();
+      int NumSrcElt = SrcTy.getNumElements();
+
+      LLT DstEltTy = DstTy.getElementType();
+      LLT DstCastTy = DstEltTy; // Intermediate bitcast result type
+      LLT SrcPartTy = SrcEltTy; // Original unmerge result type.
+
+      // If there's an element size mismatch, insert intermediate casts to match
+      // the result element type.
+      if (NumSrcElt < NumDstElt) { // Source element type is larger.
+        // %1:_(<4 x s8>) = G_BITCAST %0:_(<2 x s16>)
+        //
+        // =>
+        //
+        // %2:_(s16), %3:_(s16) = G_UNMERGE_VALUES %0
+        // %3:_(<2 x s8>) = G_BITCAST %2
+        // %4:_(<2 x s8>) = G_BITCAST %3
+        // %1:_(<4 x s16>) = G_CONCAT_VECTORS %3, %4
+        DstCastTy = LLT::vector(NumDstElt / NumSrcElt, DstEltTy);
+        SrcPartTy = SrcEltTy;
+      } else if (NumSrcElt > NumDstElt) { // Source element type is smaller.
+        //
+        // %1:_(<2 x s16>) = G_BITCAST %0:_(<4 x s8>)
+        //
+        // =>
+        //
+        // %2:_(<2 x s8>), %3:_(<2 x s8>) = G_UNMERGE_VALUES %0
+        // %3:_(s16) = G_BITCAST %2
+        // %4:_(s16) = G_BITCAST %3
+        // %1:_(<2 x s16>) = G_BUILD_VECTOR %3, %4
+        SrcPartTy = LLT::vector(NumSrcElt / NumDstElt, SrcEltTy);
+        DstCastTy = DstEltTy;
+      }
+
+      getUnmergePieces(SrcRegs, MIRBuilder, Src, SrcPartTy);
+      for (Register &SrcReg : SrcRegs)
+        SrcReg = MIRBuilder.buildBitcast(DstCastTy, SrcReg).getReg(0);
+    } else
+      getUnmergePieces(SrcRegs, MIRBuilder, Src, SrcEltTy);
+
     MIRBuilder.buildMerge(Dst, SrcRegs);
     MI.eraseFromParent();
     return Legalized;
   }
 
-  if (DstTy.isVector() && !SrcTy.isVector()) {
+  if (DstTy.isVector()) {
     SmallVector<Register, 8> SrcRegs;
     getUnmergePieces(SrcRegs, MIRBuilder, Src, DstTy.getElementType());
     MIRBuilder.buildMerge(Dst, SrcRegs);

diff  --git a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-bitcast.mir b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-bitcast.mir
index 98183b01ce36..8d41ab00e8a0 100644
--- a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-bitcast.mir
+++ b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-bitcast.mir
@@ -521,28 +521,36 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v2s16_to_v4s8
     ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr0
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<4 x s8>) = G_BITCAST [[COPY]](<2 x s16>)
-    ; CHECK: [[UV:%[0-9]+]]:_(s8), [[UV1:%[0-9]+]]:_(s8), [[UV2:%[0-9]+]]:_(s8), [[UV3:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[BITCAST]](<4 x s8>)
-    ; CHECK: [[UV4:%[0-9]+]]:_(s8), [[UV5:%[0-9]+]]:_(s8), [[UV6:%[0-9]+]]:_(s8), [[UV7:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[BITCAST]](<4 x s8>)
-    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[UV]](s8)
-    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[UV4]](s8)
-    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT]], [[ANYEXT1]]
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[ADD]](s16)
-    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s16) = G_ANYEXT [[UV1]](s8)
-    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s16) = G_ANYEXT [[UV5]](s8)
-    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT2]], [[ANYEXT3]]
-    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[ADD1]](s16)
-    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s16) = G_ANYEXT [[UV2]](s8)
-    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s16) = G_ANYEXT [[UV6]](s8)
-    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT4]], [[ANYEXT5]]
-    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[ADD2]](s16)
-    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s16) = G_ANYEXT [[UV3]](s8)
-    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s16) = G_ANYEXT [[UV7]](s8)
-    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT6]], [[ANYEXT7]]
-    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[ADD3]](s16)
-    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s8>) = G_BUILD_VECTOR [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8)
-    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(<4 x s32>) = G_ANYEXT [[BUILD_VECTOR]](<4 x s8>)
-    ; CHECK: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[ANYEXT8]](<4 x s32>)
+    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[COPY]](<2 x s16>)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST]](s32)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC]], [[C1]](s16)
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC1]], [[C1]](s16)
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[TRUNC]](s16)
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s16) = COPY [[TRUNC]](s16)
+    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[COPY1]], [[COPY2]]
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s16) = COPY [[LSHR1]](s16)
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s16) = COPY [[LSHR1]](s16)
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[COPY3]], [[COPY4]]
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s16) = COPY [[TRUNC1]](s16)
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s16) = COPY [[TRUNC1]](s16)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[COPY5]], [[COPY6]]
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s16) = COPY [[LSHR2]](s16)
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s16) = COPY [[LSHR2]](s16)
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[COPY7]], [[COPY8]]
+    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD]](s16)
+    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD1]](s16)
+    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD2]](s16)
+    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD3]](s16)
+    ; CHECK: [[COPY9:%[0-9]+]]:_(s32) = COPY [[ANYEXT]](s32)
+    ; CHECK: [[COPY10:%[0-9]+]]:_(s32) = COPY [[ANYEXT1]](s32)
+    ; CHECK: [[COPY11:%[0-9]+]]:_(s32) = COPY [[ANYEXT2]](s32)
+    ; CHECK: [[COPY12:%[0-9]+]]:_(s32) = COPY [[ANYEXT3]](s32)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CHECK: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BUILD_VECTOR]](<4 x s32>)
     %0:_(<2 x s16>) = COPY $vgpr0
     %1:_(<4 x s8>) = G_BITCAST %0
     %2:_(<4 x s8>) = G_ADD %1, %1
@@ -558,9 +566,40 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v4s8_to_v2s16
     ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[COPY]](<4 x s32>)
-    ; CHECK: [[ADD:%[0-9]+]]:_(<4 x s8>) = G_ADD [[TRUNC]], [[TRUNC]]
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[ADD]](<4 x s8>)
+    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
+    ; CHECK: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV]](s32)
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[UV4]](s32)
+    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[TRUNC]], [[TRUNC1]]
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[UV1]](s32)
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[UV5]](s32)
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[TRUNC2]], [[TRUNC3]]
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[UV2]](s32)
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[UV6]](s32)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[TRUNC4]], [[TRUNC5]]
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[UV3]](s32)
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[UV7]](s32)
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[TRUNC6]], [[TRUNC7]]
+    ; CHECK: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 255
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[ADD]](s16)
+    ; CHECK: [[AND:%[0-9]+]]:_(s16) = G_AND [[COPY1]], [[C]]
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s16) = COPY [[ADD1]](s16)
+    ; CHECK: [[AND1:%[0-9]+]]:_(s16) = G_AND [[COPY2]], [[C]]
+    ; CHECK: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; CHECK: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[AND1]], [[C1]](s16)
+    ; CHECK: [[OR:%[0-9]+]]:_(s16) = G_OR [[AND]], [[SHL]]
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s16) = COPY [[ADD2]](s16)
+    ; CHECK: [[AND2:%[0-9]+]]:_(s16) = G_AND [[COPY3]], [[C]]
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s16) = COPY [[ADD3]](s16)
+    ; CHECK: [[AND3:%[0-9]+]]:_(s16) = G_AND [[COPY4]], [[C]]
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[AND3]], [[C1]](s16)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s16) = G_OR [[AND2]], [[SHL1]]
+    ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[OR]](s16)
+    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[OR1]](s16)
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s32) = G_SHL [[ZEXT1]], [[C2]](s32)
+    ; CHECK: [[OR2:%[0-9]+]]:_(s32) = G_OR [[ZEXT]], [[SHL2]]
+    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR2]](s32)
     ; CHECK: $vgpr0 = COPY [[BITCAST]](<2 x s16>)
     %0:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
     %1:_(<4 x s8>) = G_TRUNC %0
@@ -577,44 +616,62 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v2s16_to_v8s4
     ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr0
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<8 x s4>) = G_BITCAST [[COPY]](<2 x s16>)
-    ; CHECK: [[UV:%[0-9]+]]:_(s4), [[UV1:%[0-9]+]]:_(s4), [[UV2:%[0-9]+]]:_(s4), [[UV3:%[0-9]+]]:_(s4), [[UV4:%[0-9]+]]:_(s4), [[UV5:%[0-9]+]]:_(s4), [[UV6:%[0-9]+]]:_(s4), [[UV7:%[0-9]+]]:_(s4) = G_UNMERGE_VALUES [[BITCAST]](<8 x s4>)
-    ; CHECK: [[UV8:%[0-9]+]]:_(s4), [[UV9:%[0-9]+]]:_(s4), [[UV10:%[0-9]+]]:_(s4), [[UV11:%[0-9]+]]:_(s4), [[UV12:%[0-9]+]]:_(s4), [[UV13:%[0-9]+]]:_(s4), [[UV14:%[0-9]+]]:_(s4), [[UV15:%[0-9]+]]:_(s4) = G_UNMERGE_VALUES [[BITCAST]](<8 x s4>)
-    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[UV]](s4)
-    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[UV8]](s4)
-    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT]], [[ANYEXT1]]
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(s4) = G_TRUNC [[ADD]](s16)
-    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s16) = G_ANYEXT [[UV1]](s4)
-    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s16) = G_ANYEXT [[UV9]](s4)
-    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT2]], [[ANYEXT3]]
-    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s4) = G_TRUNC [[ADD1]](s16)
-    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s16) = G_ANYEXT [[UV2]](s4)
-    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s16) = G_ANYEXT [[UV10]](s4)
-    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT4]], [[ANYEXT5]]
-    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s4) = G_TRUNC [[ADD2]](s16)
-    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s16) = G_ANYEXT [[UV3]](s4)
-    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s16) = G_ANYEXT [[UV11]](s4)
-    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT6]], [[ANYEXT7]]
-    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s4) = G_TRUNC [[ADD3]](s16)
-    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s16) = G_ANYEXT [[UV4]](s4)
-    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s16) = G_ANYEXT [[UV12]](s4)
-    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT8]], [[ANYEXT9]]
-    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s4) = G_TRUNC [[ADD4]](s16)
-    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s16) = G_ANYEXT [[UV5]](s4)
-    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s16) = G_ANYEXT [[UV13]](s4)
-    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT10]], [[ANYEXT11]]
-    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s4) = G_TRUNC [[ADD5]](s16)
-    ; CHECK: [[ANYEXT12:%[0-9]+]]:_(s16) = G_ANYEXT [[UV6]](s4)
-    ; CHECK: [[ANYEXT13:%[0-9]+]]:_(s16) = G_ANYEXT [[UV14]](s4)
-    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT12]], [[ANYEXT13]]
-    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s4) = G_TRUNC [[ADD6]](s16)
-    ; CHECK: [[ANYEXT14:%[0-9]+]]:_(s16) = G_ANYEXT [[UV7]](s4)
-    ; CHECK: [[ANYEXT15:%[0-9]+]]:_(s16) = G_ANYEXT [[UV15]](s4)
-    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT14]], [[ANYEXT15]]
-    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s4) = G_TRUNC [[ADD7]](s16)
-    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<8 x s4>) = G_BUILD_VECTOR [[TRUNC]](s4), [[TRUNC1]](s4), [[TRUNC2]](s4), [[TRUNC3]](s4), [[TRUNC4]](s4), [[TRUNC5]](s4), [[TRUNC6]](s4), [[TRUNC7]](s4)
-    ; CHECK: [[ANYEXT16:%[0-9]+]]:_(<8 x s32>) = G_ANYEXT [[BUILD_VECTOR]](<8 x s4>)
-    ; CHECK: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[ANYEXT16]](<8 x s32>)
+    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[COPY]](<2 x s16>)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST]](s32)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 4
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC]], [[C1]](s16)
+    ; CHECK: [[C2:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC]], [[C2]](s16)
+    ; CHECK: [[C3:%[0-9]+]]:_(s16) = G_CONSTANT i16 12
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC]], [[C3]](s16)
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC1]], [[C1]](s16)
+    ; CHECK: [[LSHR5:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC1]], [[C2]](s16)
+    ; CHECK: [[LSHR6:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC1]], [[C3]](s16)
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[TRUNC]](s16)
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s16) = COPY [[TRUNC]](s16)
+    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[COPY1]], [[COPY2]]
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s16) = COPY [[LSHR1]](s16)
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s16) = COPY [[LSHR1]](s16)
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[COPY3]], [[COPY4]]
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s16) = COPY [[LSHR2]](s16)
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s16) = COPY [[LSHR2]](s16)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[COPY5]], [[COPY6]]
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s16) = COPY [[LSHR3]](s16)
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s16) = COPY [[LSHR3]](s16)
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[COPY7]], [[COPY8]]
+    ; CHECK: [[COPY9:%[0-9]+]]:_(s16) = COPY [[TRUNC1]](s16)
+    ; CHECK: [[COPY10:%[0-9]+]]:_(s16) = COPY [[TRUNC1]](s16)
+    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[COPY9]], [[COPY10]]
+    ; CHECK: [[COPY11:%[0-9]+]]:_(s16) = COPY [[LSHR4]](s16)
+    ; CHECK: [[COPY12:%[0-9]+]]:_(s16) = COPY [[LSHR4]](s16)
+    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[COPY11]], [[COPY12]]
+    ; CHECK: [[COPY13:%[0-9]+]]:_(s16) = COPY [[LSHR5]](s16)
+    ; CHECK: [[COPY14:%[0-9]+]]:_(s16) = COPY [[LSHR5]](s16)
+    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[COPY13]], [[COPY14]]
+    ; CHECK: [[COPY15:%[0-9]+]]:_(s16) = COPY [[LSHR6]](s16)
+    ; CHECK: [[COPY16:%[0-9]+]]:_(s16) = COPY [[LSHR6]](s16)
+    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[COPY15]], [[COPY16]]
+    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD]](s16)
+    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD1]](s16)
+    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD2]](s16)
+    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD3]](s16)
+    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD4]](s16)
+    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD5]](s16)
+    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD6]](s16)
+    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD7]](s16)
+    ; CHECK: [[COPY17:%[0-9]+]]:_(s32) = COPY [[ANYEXT]](s32)
+    ; CHECK: [[COPY18:%[0-9]+]]:_(s32) = COPY [[ANYEXT1]](s32)
+    ; CHECK: [[COPY19:%[0-9]+]]:_(s32) = COPY [[ANYEXT2]](s32)
+    ; CHECK: [[COPY20:%[0-9]+]]:_(s32) = COPY [[ANYEXT3]](s32)
+    ; CHECK: [[COPY21:%[0-9]+]]:_(s32) = COPY [[ANYEXT4]](s32)
+    ; CHECK: [[COPY22:%[0-9]+]]:_(s32) = COPY [[ANYEXT5]](s32)
+    ; CHECK: [[COPY23:%[0-9]+]]:_(s32) = COPY [[ANYEXT6]](s32)
+    ; CHECK: [[COPY24:%[0-9]+]]:_(s32) = COPY [[ANYEXT7]](s32)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<8 x s32>) = G_BUILD_VECTOR [[COPY17]](s32), [[COPY18]](s32), [[COPY19]](s32), [[COPY20]](s32), [[COPY21]](s32), [[COPY22]](s32), [[COPY23]](s32), [[COPY24]](s32)
+    ; CHECK: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BUILD_VECTOR]](<8 x s32>)
     %0:_(<2 x s16>) = COPY $vgpr0
     %1:_(<8 x s4>) = G_BITCAST %0
     %2:_(<8 x s4>) = G_ADD %1, %1
@@ -630,9 +687,70 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v8s4_to_v2s16
     ; CHECK: [[COPY:%[0-9]+]]:_(<8 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(<8 x s4>) = G_TRUNC [[COPY]](<8 x s32>)
-    ; CHECK: [[ADD:%[0-9]+]]:_(<8 x s4>) = G_ADD [[TRUNC]], [[TRUNC]]
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[ADD]](<8 x s4>)
+    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<8 x s32>)
+    ; CHECK: [[UV8:%[0-9]+]]:_(s32), [[UV9:%[0-9]+]]:_(s32), [[UV10:%[0-9]+]]:_(s32), [[UV11:%[0-9]+]]:_(s32), [[UV12:%[0-9]+]]:_(s32), [[UV13:%[0-9]+]]:_(s32), [[UV14:%[0-9]+]]:_(s32), [[UV15:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<8 x s32>)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV]](s32)
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[UV8]](s32)
+    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[TRUNC]], [[TRUNC1]]
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[UV1]](s32)
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[UV9]](s32)
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[TRUNC2]], [[TRUNC3]]
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[UV2]](s32)
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[UV10]](s32)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[TRUNC4]], [[TRUNC5]]
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[UV3]](s32)
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[UV11]](s32)
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[TRUNC6]], [[TRUNC7]]
+    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s16) = G_TRUNC [[UV4]](s32)
+    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s16) = G_TRUNC [[UV12]](s32)
+    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[TRUNC8]], [[TRUNC9]]
+    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s16) = G_TRUNC [[UV5]](s32)
+    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s16) = G_TRUNC [[UV13]](s32)
+    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[TRUNC10]], [[TRUNC11]]
+    ; CHECK: [[TRUNC12:%[0-9]+]]:_(s16) = G_TRUNC [[UV6]](s32)
+    ; CHECK: [[TRUNC13:%[0-9]+]]:_(s16) = G_TRUNC [[UV14]](s32)
+    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[TRUNC12]], [[TRUNC13]]
+    ; CHECK: [[TRUNC14:%[0-9]+]]:_(s16) = G_TRUNC [[UV7]](s32)
+    ; CHECK: [[TRUNC15:%[0-9]+]]:_(s16) = G_TRUNC [[UV15]](s32)
+    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[TRUNC14]], [[TRUNC15]]
+    ; CHECK: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 15
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[ADD]](s16)
+    ; CHECK: [[AND:%[0-9]+]]:_(s16) = G_AND [[COPY1]], [[C]]
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s16) = COPY [[ADD1]](s16)
+    ; CHECK: [[AND1:%[0-9]+]]:_(s16) = G_AND [[COPY2]], [[C]]
+    ; CHECK: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 4
+    ; CHECK: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[AND1]], [[C1]](s16)
+    ; CHECK: [[OR:%[0-9]+]]:_(s16) = G_OR [[AND]], [[SHL]]
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s16) = COPY [[ADD2]](s16)
+    ; CHECK: [[AND2:%[0-9]+]]:_(s16) = G_AND [[COPY3]], [[C]]
+    ; CHECK: [[C2:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[AND2]], [[C2]](s16)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s16) = G_OR [[OR]], [[SHL1]]
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s16) = COPY [[ADD3]](s16)
+    ; CHECK: [[AND3:%[0-9]+]]:_(s16) = G_AND [[COPY4]], [[C]]
+    ; CHECK: [[C3:%[0-9]+]]:_(s16) = G_CONSTANT i16 12
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s16) = G_SHL [[AND3]], [[C3]](s16)
+    ; CHECK: [[OR2:%[0-9]+]]:_(s16) = G_OR [[OR1]], [[SHL2]]
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s16) = COPY [[ADD4]](s16)
+    ; CHECK: [[AND4:%[0-9]+]]:_(s16) = G_AND [[COPY5]], [[C]]
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s16) = COPY [[ADD5]](s16)
+    ; CHECK: [[AND5:%[0-9]+]]:_(s16) = G_AND [[COPY6]], [[C]]
+    ; CHECK: [[SHL3:%[0-9]+]]:_(s16) = G_SHL [[AND5]], [[C1]](s16)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s16) = G_OR [[AND4]], [[SHL3]]
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s16) = COPY [[ADD6]](s16)
+    ; CHECK: [[AND6:%[0-9]+]]:_(s16) = G_AND [[COPY7]], [[C]]
+    ; CHECK: [[SHL4:%[0-9]+]]:_(s16) = G_SHL [[AND6]], [[C2]](s16)
+    ; CHECK: [[OR4:%[0-9]+]]:_(s16) = G_OR [[OR3]], [[SHL4]]
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s16) = COPY [[ADD7]](s16)
+    ; CHECK: [[AND7:%[0-9]+]]:_(s16) = G_AND [[COPY8]], [[C]]
+    ; CHECK: [[SHL5:%[0-9]+]]:_(s16) = G_SHL [[AND7]], [[C3]](s16)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s16) = G_OR [[OR4]], [[SHL5]]
+    ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[OR2]](s16)
+    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[OR5]](s16)
+    ; CHECK: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[SHL6:%[0-9]+]]:_(s32) = G_SHL [[ZEXT1]], [[C4]](s32)
+    ; CHECK: [[OR6:%[0-9]+]]:_(s32) = G_OR [[ZEXT]], [[SHL6]]
+    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR6]](s32)
     ; CHECK: $vgpr0 = COPY [[BITCAST]](<2 x s16>)
     %0:_(<8 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
     %1:_(<8 x s4>) = G_TRUNC %0
@@ -715,43 +833,51 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v2s32_to_v8s8
     ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[COPY]](<2 x s32>)
-    ; CHECK: [[UV:%[0-9]+]]:_(s8), [[UV1:%[0-9]+]]:_(s8), [[UV2:%[0-9]+]]:_(s8), [[UV3:%[0-9]+]]:_(s8), [[UV4:%[0-9]+]]:_(s8), [[UV5:%[0-9]+]]:_(s8), [[UV6:%[0-9]+]]:_(s8), [[UV7:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[BITCAST]](<8 x s8>)
-    ; CHECK: [[UV8:%[0-9]+]]:_(s8), [[UV9:%[0-9]+]]:_(s8), [[UV10:%[0-9]+]]:_(s8), [[UV11:%[0-9]+]]:_(s8), [[UV12:%[0-9]+]]:_(s8), [[UV13:%[0-9]+]]:_(s8), [[UV14:%[0-9]+]]:_(s8), [[UV15:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[BITCAST]](<8 x s8>)
-    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[UV]](s8)
-    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[UV8]](s8)
-    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT]], [[ANYEXT1]]
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[ADD]](s16)
-    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s16) = G_ANYEXT [[UV1]](s8)
-    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s16) = G_ANYEXT [[UV9]](s8)
-    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT2]], [[ANYEXT3]]
-    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[ADD1]](s16)
-    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s16) = G_ANYEXT [[UV2]](s8)
-    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s16) = G_ANYEXT [[UV10]](s8)
-    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT4]], [[ANYEXT5]]
-    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[ADD2]](s16)
-    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s16) = G_ANYEXT [[UV3]](s8)
-    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s16) = G_ANYEXT [[UV11]](s8)
-    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT6]], [[ANYEXT7]]
-    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[ADD3]](s16)
-    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s16) = G_ANYEXT [[UV4]](s8)
-    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s16) = G_ANYEXT [[UV12]](s8)
-    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT8]], [[ANYEXT9]]
-    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[ADD4]](s16)
-    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s16) = G_ANYEXT [[UV5]](s8)
-    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s16) = G_ANYEXT [[UV13]](s8)
-    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT10]], [[ANYEXT11]]
-    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[ADD5]](s16)
-    ; CHECK: [[ANYEXT12:%[0-9]+]]:_(s16) = G_ANYEXT [[UV6]](s8)
-    ; CHECK: [[ANYEXT13:%[0-9]+]]:_(s16) = G_ANYEXT [[UV14]](s8)
-    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT12]], [[ANYEXT13]]
-    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[ADD6]](s16)
-    ; CHECK: [[ANYEXT14:%[0-9]+]]:_(s16) = G_ANYEXT [[UV7]](s8)
-    ; CHECK: [[ANYEXT15:%[0-9]+]]:_(s16) = G_ANYEXT [[UV15]](s8)
-    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT14]], [[ANYEXT15]]
-    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[ADD7]](s16)
-    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<8 x s8>) = G_BUILD_VECTOR [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8), [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8)
-    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<8 x s8>)
+    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CHECK: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV]](s32)
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[TRUNC]](s16)
+    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[TRUNC]], [[COPY1]]
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s16) = COPY [[TRUNC1]](s16)
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[TRUNC1]], [[COPY2]]
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s16) = COPY [[TRUNC2]](s16)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[TRUNC2]], [[COPY3]]
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR2]](s32)
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s16) = COPY [[TRUNC3]](s16)
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[TRUNC3]], [[COPY4]]
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[UV1]](s32)
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s16) = COPY [[TRUNC4]](s16)
+    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[TRUNC4]], [[COPY5]]
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR3]](s32)
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s16) = COPY [[TRUNC5]](s16)
+    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[TRUNC5]], [[COPY6]]
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR4]](s32)
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s16) = COPY [[TRUNC6]](s16)
+    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[TRUNC6]], [[COPY7]]
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR5]](s32)
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s16) = COPY [[TRUNC7]](s16)
+    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[TRUNC7]], [[COPY8]]
+    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD]](s16)
+    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD1]](s16)
+    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD2]](s16)
+    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD3]](s16)
+    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD4]](s16)
+    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD5]](s16)
+    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD6]](s16)
+    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD7]](s16)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<8 x s32>) = G_BUILD_VECTOR [[ANYEXT]](s32), [[ANYEXT1]](s32), [[ANYEXT2]](s32), [[ANYEXT3]](s32), [[ANYEXT4]](s32), [[ANYEXT5]](s32), [[ANYEXT6]](s32), [[ANYEXT7]](s32)
+    ; CHECK: [[TRUNC8:%[0-9]+]]:_(<8 x s8>) = G_TRUNC [[BUILD_VECTOR]](<8 x s32>)
+    ; CHECK: S_ENDPGM 0, implicit [[TRUNC8]](<8 x s8>)
     %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
     %1:_(<8 x s8>) = G_BITCAST %0
     %2:_(<8 x s8>) = G_ADD %1, %1
@@ -767,9 +893,43 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v8s8_to_v2s32
     ; CHECK: [[COPY:%[0-9]+]]:_(<8 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(<8 x s8>) = G_TRUNC [[COPY]](<8 x s32>)
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s32>) = G_BITCAST [[TRUNC]](<8 x s8>)
-    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<2 x s32>)
+    ; CHECK: [[UV:%[0-9]+]]:_(<4 x s32>), [[UV1:%[0-9]+]]:_(<4 x s32>) = G_UNMERGE_VALUES [[COPY]](<8 x s32>)
+    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV]](<4 x s32>)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 255
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY2]], [[C]]
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND1]], [[C1]](s32)
+    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND]], [[SHL]]
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[AND2]], [[C2]](s32)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[OR]], [[SHL1]]
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C]]
+    ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s32) = G_SHL [[AND3]], [[C3]](s32)
+    ; CHECK: [[OR2:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[SHL2]]
+    ; CHECK: [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32), [[UV8:%[0-9]+]]:_(s32), [[UV9:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV1]](<4 x s32>)
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; CHECK: [[AND4:%[0-9]+]]:_(s32) = G_AND [[COPY5]], [[C]]
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; CHECK: [[AND5:%[0-9]+]]:_(s32) = G_AND [[COPY6]], [[C]]
+    ; CHECK: [[SHL3:%[0-9]+]]:_(s32) = G_SHL [[AND5]], [[C1]](s32)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s32) = G_OR [[AND4]], [[SHL3]]
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s32) = COPY [[UV8]](s32)
+    ; CHECK: [[AND6:%[0-9]+]]:_(s32) = G_AND [[COPY7]], [[C]]
+    ; CHECK: [[SHL4:%[0-9]+]]:_(s32) = G_SHL [[AND6]], [[C2]](s32)
+    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[OR3]], [[SHL4]]
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s32) = COPY [[UV9]](s32)
+    ; CHECK: [[AND7:%[0-9]+]]:_(s32) = G_AND [[COPY8]], [[C]]
+    ; CHECK: [[SHL5:%[0-9]+]]:_(s32) = G_SHL [[AND7]], [[C3]](s32)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s32) = G_OR [[OR4]], [[SHL5]]
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[OR2]](s32), [[OR5]](s32)
+    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<2 x s32>)
     %0:_(<8 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
     %1:_(<8 x s8>) = G_TRUNC %0
     %2:_(<2 x s32>) = G_BITCAST %1
@@ -836,76 +996,151 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v2s32_to_v16s4
     ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<16 x s4>) = G_BITCAST [[COPY]](<2 x s32>)
-    ; CHECK: [[UV:%[0-9]+]]:_(s4), [[UV1:%[0-9]+]]:_(s4), [[UV2:%[0-9]+]]:_(s4), [[UV3:%[0-9]+]]:_(s4), [[UV4:%[0-9]+]]:_(s4), [[UV5:%[0-9]+]]:_(s4), [[UV6:%[0-9]+]]:_(s4), [[UV7:%[0-9]+]]:_(s4), [[UV8:%[0-9]+]]:_(s4), [[UV9:%[0-9]+]]:_(s4), [[UV10:%[0-9]+]]:_(s4), [[UV11:%[0-9]+]]:_(s4), [[UV12:%[0-9]+]]:_(s4), [[UV13:%[0-9]+]]:_(s4), [[UV14:%[0-9]+]]:_(s4), [[UV15:%[0-9]+]]:_(s4) = G_UNMERGE_VALUES [[BITCAST]](<16 x s4>)
-    ; CHECK: [[UV16:%[0-9]+]]:_(s4), [[UV17:%[0-9]+]]:_(s4), [[UV18:%[0-9]+]]:_(s4), [[UV19:%[0-9]+]]:_(s4), [[UV20:%[0-9]+]]:_(s4), [[UV21:%[0-9]+]]:_(s4), [[UV22:%[0-9]+]]:_(s4), [[UV23:%[0-9]+]]:_(s4), [[UV24:%[0-9]+]]:_(s4), [[UV25:%[0-9]+]]:_(s4), [[UV26:%[0-9]+]]:_(s4), [[UV27:%[0-9]+]]:_(s4), [[UV28:%[0-9]+]]:_(s4), [[UV29:%[0-9]+]]:_(s4), [[UV30:%[0-9]+]]:_(s4), [[UV31:%[0-9]+]]:_(s4) = G_UNMERGE_VALUES [[BITCAST]](<16 x s4>)
-    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[UV]](s4)
-    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[UV16]](s4)
-    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT]], [[ANYEXT1]]
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(s4) = G_TRUNC [[ADD]](s16)
-    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s16) = G_ANYEXT [[UV1]](s4)
-    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s16) = G_ANYEXT [[UV17]](s4)
-    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT2]], [[ANYEXT3]]
-    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s4) = G_TRUNC [[ADD1]](s16)
-    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s16) = G_ANYEXT [[UV2]](s4)
-    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s16) = G_ANYEXT [[UV18]](s4)
-    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT4]], [[ANYEXT5]]
-    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s4) = G_TRUNC [[ADD2]](s16)
-    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s16) = G_ANYEXT [[UV3]](s4)
-    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s16) = G_ANYEXT [[UV19]](s4)
-    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT6]], [[ANYEXT7]]
-    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s4) = G_TRUNC [[ADD3]](s16)
-    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s16) = G_ANYEXT [[UV4]](s4)
-    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s16) = G_ANYEXT [[UV20]](s4)
-    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT8]], [[ANYEXT9]]
-    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s4) = G_TRUNC [[ADD4]](s16)
-    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s16) = G_ANYEXT [[UV5]](s4)
-    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s16) = G_ANYEXT [[UV21]](s4)
-    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT10]], [[ANYEXT11]]
-    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s4) = G_TRUNC [[ADD5]](s16)
-    ; CHECK: [[ANYEXT12:%[0-9]+]]:_(s16) = G_ANYEXT [[UV6]](s4)
-    ; CHECK: [[ANYEXT13:%[0-9]+]]:_(s16) = G_ANYEXT [[UV22]](s4)
-    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT12]], [[ANYEXT13]]
-    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s4) = G_TRUNC [[ADD6]](s16)
-    ; CHECK: [[ANYEXT14:%[0-9]+]]:_(s16) = G_ANYEXT [[UV7]](s4)
-    ; CHECK: [[ANYEXT15:%[0-9]+]]:_(s16) = G_ANYEXT [[UV23]](s4)
-    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT14]], [[ANYEXT15]]
-    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s4) = G_TRUNC [[ADD7]](s16)
-    ; CHECK: [[ANYEXT16:%[0-9]+]]:_(s16) = G_ANYEXT [[UV8]](s4)
-    ; CHECK: [[ANYEXT17:%[0-9]+]]:_(s16) = G_ANYEXT [[UV24]](s4)
-    ; CHECK: [[ADD8:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT16]], [[ANYEXT17]]
-    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s4) = G_TRUNC [[ADD8]](s16)
-    ; CHECK: [[ANYEXT18:%[0-9]+]]:_(s16) = G_ANYEXT [[UV9]](s4)
-    ; CHECK: [[ANYEXT19:%[0-9]+]]:_(s16) = G_ANYEXT [[UV25]](s4)
-    ; CHECK: [[ADD9:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT18]], [[ANYEXT19]]
-    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s4) = G_TRUNC [[ADD9]](s16)
-    ; CHECK: [[ANYEXT20:%[0-9]+]]:_(s16) = G_ANYEXT [[UV10]](s4)
-    ; CHECK: [[ANYEXT21:%[0-9]+]]:_(s16) = G_ANYEXT [[UV26]](s4)
-    ; CHECK: [[ADD10:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT20]], [[ANYEXT21]]
-    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s4) = G_TRUNC [[ADD10]](s16)
-    ; CHECK: [[ANYEXT22:%[0-9]+]]:_(s16) = G_ANYEXT [[UV11]](s4)
-    ; CHECK: [[ANYEXT23:%[0-9]+]]:_(s16) = G_ANYEXT [[UV27]](s4)
-    ; CHECK: [[ADD11:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT22]], [[ANYEXT23]]
-    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s4) = G_TRUNC [[ADD11]](s16)
-    ; CHECK: [[ANYEXT24:%[0-9]+]]:_(s16) = G_ANYEXT [[UV12]](s4)
-    ; CHECK: [[ANYEXT25:%[0-9]+]]:_(s16) = G_ANYEXT [[UV28]](s4)
-    ; CHECK: [[ADD12:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT24]], [[ANYEXT25]]
-    ; CHECK: [[TRUNC12:%[0-9]+]]:_(s4) = G_TRUNC [[ADD12]](s16)
-    ; CHECK: [[ANYEXT26:%[0-9]+]]:_(s16) = G_ANYEXT [[UV13]](s4)
-    ; CHECK: [[ANYEXT27:%[0-9]+]]:_(s16) = G_ANYEXT [[UV29]](s4)
-    ; CHECK: [[ADD13:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT26]], [[ANYEXT27]]
-    ; CHECK: [[TRUNC13:%[0-9]+]]:_(s4) = G_TRUNC [[ADD13]](s16)
-    ; CHECK: [[ANYEXT28:%[0-9]+]]:_(s16) = G_ANYEXT [[UV14]](s4)
-    ; CHECK: [[ANYEXT29:%[0-9]+]]:_(s16) = G_ANYEXT [[UV30]](s4)
-    ; CHECK: [[ADD14:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT28]], [[ANYEXT29]]
-    ; CHECK: [[TRUNC14:%[0-9]+]]:_(s4) = G_TRUNC [[ADD14]](s16)
-    ; CHECK: [[ANYEXT30:%[0-9]+]]:_(s16) = G_ANYEXT [[UV15]](s4)
-    ; CHECK: [[ANYEXT31:%[0-9]+]]:_(s16) = G_ANYEXT [[UV31]](s4)
-    ; CHECK: [[ADD15:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT30]], [[ANYEXT31]]
-    ; CHECK: [[TRUNC15:%[0-9]+]]:_(s4) = G_TRUNC [[ADD15]](s16)
-    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<16 x s4>) = G_BUILD_VECTOR [[TRUNC]](s4), [[TRUNC1]](s4), [[TRUNC2]](s4), [[TRUNC3]](s4), [[TRUNC4]](s4), [[TRUNC5]](s4), [[TRUNC6]](s4), [[TRUNC7]](s4), [[TRUNC8]](s4), [[TRUNC9]](s4), [[TRUNC10]](s4), [[TRUNC11]](s4), [[TRUNC12]](s4), [[TRUNC13]](s4), [[TRUNC14]](s4), [[TRUNC15]](s4)
-    ; CHECK: [[ANYEXT32:%[0-9]+]]:_(<16 x s16>) = G_ANYEXT [[BUILD_VECTOR]](<16 x s4>)
-    ; CHECK: S_ENDPGM 0, implicit [[ANYEXT32]](<16 x s16>)
+    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C3]](s32)
+    ; CHECK: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 20
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C4]](s32)
+    ; CHECK: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CHECK: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C5]](s32)
+    ; CHECK: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 28
+    ; CHECK: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C6]](s32)
+    ; CHECK: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CHECK: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CHECK: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CHECK: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C3]](s32)
+    ; CHECK: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C4]](s32)
+    ; CHECK: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C5]](s32)
+    ; CHECK: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C6]](s32)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV]](s32)
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[TRUNC]](s16)
+    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[TRUNC]], [[COPY1]]
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s16) = COPY [[TRUNC1]](s16)
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[TRUNC1]], [[COPY2]]
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s16) = COPY [[TRUNC2]](s16)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[TRUNC2]], [[COPY3]]
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR2]](s32)
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s16) = COPY [[TRUNC3]](s16)
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[TRUNC3]], [[COPY4]]
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR3]](s32)
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s16) = COPY [[TRUNC4]](s16)
+    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[TRUNC4]], [[COPY5]]
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR4]](s32)
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s16) = COPY [[TRUNC5]](s16)
+    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[TRUNC5]], [[COPY6]]
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR5]](s32)
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s16) = COPY [[TRUNC6]](s16)
+    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[TRUNC6]], [[COPY7]]
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR6]](s32)
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s16) = COPY [[TRUNC7]](s16)
+    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[TRUNC7]], [[COPY8]]
+    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s16) = G_TRUNC [[UV1]](s32)
+    ; CHECK: [[COPY9:%[0-9]+]]:_(s16) = COPY [[TRUNC8]](s16)
+    ; CHECK: [[ADD8:%[0-9]+]]:_(s16) = G_ADD [[TRUNC8]], [[COPY9]]
+    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR7]](s32)
+    ; CHECK: [[COPY10:%[0-9]+]]:_(s16) = COPY [[TRUNC9]](s16)
+    ; CHECK: [[ADD9:%[0-9]+]]:_(s16) = G_ADD [[TRUNC9]], [[COPY10]]
+    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR8]](s32)
+    ; CHECK: [[COPY11:%[0-9]+]]:_(s16) = COPY [[TRUNC10]](s16)
+    ; CHECK: [[ADD10:%[0-9]+]]:_(s16) = G_ADD [[TRUNC10]], [[COPY11]]
+    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR9]](s32)
+    ; CHECK: [[COPY12:%[0-9]+]]:_(s16) = COPY [[TRUNC11]](s16)
+    ; CHECK: [[ADD11:%[0-9]+]]:_(s16) = G_ADD [[TRUNC11]], [[COPY12]]
+    ; CHECK: [[TRUNC12:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR10]](s32)
+    ; CHECK: [[COPY13:%[0-9]+]]:_(s16) = COPY [[TRUNC12]](s16)
+    ; CHECK: [[ADD12:%[0-9]+]]:_(s16) = G_ADD [[TRUNC12]], [[COPY13]]
+    ; CHECK: [[TRUNC13:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR11]](s32)
+    ; CHECK: [[COPY14:%[0-9]+]]:_(s16) = COPY [[TRUNC13]](s16)
+    ; CHECK: [[ADD13:%[0-9]+]]:_(s16) = G_ADD [[TRUNC13]], [[COPY14]]
+    ; CHECK: [[TRUNC14:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR12]](s32)
+    ; CHECK: [[COPY15:%[0-9]+]]:_(s16) = COPY [[TRUNC14]](s16)
+    ; CHECK: [[ADD14:%[0-9]+]]:_(s16) = G_ADD [[TRUNC14]], [[COPY15]]
+    ; CHECK: [[TRUNC15:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR13]](s32)
+    ; CHECK: [[COPY16:%[0-9]+]]:_(s16) = COPY [[TRUNC15]](s16)
+    ; CHECK: [[ADD15:%[0-9]+]]:_(s16) = G_ADD [[TRUNC15]], [[COPY16]]
+    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD]](s16)
+    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD1]](s16)
+    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD2]](s16)
+    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD3]](s16)
+    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD4]](s16)
+    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD5]](s16)
+    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD6]](s16)
+    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD7]](s16)
+    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD8]](s16)
+    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD9]](s16)
+    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD10]](s16)
+    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD11]](s16)
+    ; CHECK: [[ANYEXT12:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD12]](s16)
+    ; CHECK: [[ANYEXT13:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD13]](s16)
+    ; CHECK: [[ANYEXT14:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD14]](s16)
+    ; CHECK: [[ANYEXT15:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD15]](s16)
+    ; CHECK: [[C7:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
+    ; CHECK: [[COPY17:%[0-9]+]]:_(s32) = COPY [[ANYEXT]](s32)
+    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY17]], [[C7]]
+    ; CHECK: [[COPY18:%[0-9]+]]:_(s32) = COPY [[ANYEXT1]](s32)
+    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY18]], [[C7]]
+    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND1]], [[C3]](s32)
+    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND]], [[SHL]]
+    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR]](s32)
+    ; CHECK: [[COPY19:%[0-9]+]]:_(s32) = COPY [[ANYEXT2]](s32)
+    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY19]], [[C7]]
+    ; CHECK: [[COPY20:%[0-9]+]]:_(s32) = COPY [[ANYEXT3]](s32)
+    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[COPY20]], [[C7]]
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[AND3]], [[C3]](s32)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[AND2]], [[SHL1]]
+    ; CHECK: [[BITCAST1:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR1]](s32)
+    ; CHECK: [[COPY21:%[0-9]+]]:_(s32) = COPY [[ANYEXT4]](s32)
+    ; CHECK: [[AND4:%[0-9]+]]:_(s32) = G_AND [[COPY21]], [[C7]]
+    ; CHECK: [[COPY22:%[0-9]+]]:_(s32) = COPY [[ANYEXT5]](s32)
+    ; CHECK: [[AND5:%[0-9]+]]:_(s32) = G_AND [[COPY22]], [[C7]]
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s32) = G_SHL [[AND5]], [[C3]](s32)
+    ; CHECK: [[OR2:%[0-9]+]]:_(s32) = G_OR [[AND4]], [[SHL2]]
+    ; CHECK: [[BITCAST2:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR2]](s32)
+    ; CHECK: [[COPY23:%[0-9]+]]:_(s32) = COPY [[ANYEXT6]](s32)
+    ; CHECK: [[AND6:%[0-9]+]]:_(s32) = G_AND [[COPY23]], [[C7]]
+    ; CHECK: [[COPY24:%[0-9]+]]:_(s32) = COPY [[ANYEXT7]](s32)
+    ; CHECK: [[AND7:%[0-9]+]]:_(s32) = G_AND [[COPY24]], [[C7]]
+    ; CHECK: [[SHL3:%[0-9]+]]:_(s32) = G_SHL [[AND7]], [[C3]](s32)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s32) = G_OR [[AND6]], [[SHL3]]
+    ; CHECK: [[BITCAST3:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR3]](s32)
+    ; CHECK: [[COPY25:%[0-9]+]]:_(s32) = COPY [[ANYEXT8]](s32)
+    ; CHECK: [[AND8:%[0-9]+]]:_(s32) = G_AND [[COPY25]], [[C7]]
+    ; CHECK: [[COPY26:%[0-9]+]]:_(s32) = COPY [[ANYEXT9]](s32)
+    ; CHECK: [[AND9:%[0-9]+]]:_(s32) = G_AND [[COPY26]], [[C7]]
+    ; CHECK: [[SHL4:%[0-9]+]]:_(s32) = G_SHL [[AND9]], [[C3]](s32)
+    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[AND8]], [[SHL4]]
+    ; CHECK: [[BITCAST4:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR4]](s32)
+    ; CHECK: [[COPY27:%[0-9]+]]:_(s32) = COPY [[ANYEXT10]](s32)
+    ; CHECK: [[AND10:%[0-9]+]]:_(s32) = G_AND [[COPY27]], [[C7]]
+    ; CHECK: [[COPY28:%[0-9]+]]:_(s32) = COPY [[ANYEXT11]](s32)
+    ; CHECK: [[AND11:%[0-9]+]]:_(s32) = G_AND [[COPY28]], [[C7]]
+    ; CHECK: [[SHL5:%[0-9]+]]:_(s32) = G_SHL [[AND11]], [[C3]](s32)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s32) = G_OR [[AND10]], [[SHL5]]
+    ; CHECK: [[BITCAST5:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR5]](s32)
+    ; CHECK: [[COPY29:%[0-9]+]]:_(s32) = COPY [[ANYEXT12]](s32)
+    ; CHECK: [[AND12:%[0-9]+]]:_(s32) = G_AND [[COPY29]], [[C7]]
+    ; CHECK: [[COPY30:%[0-9]+]]:_(s32) = COPY [[ANYEXT13]](s32)
+    ; CHECK: [[AND13:%[0-9]+]]:_(s32) = G_AND [[COPY30]], [[C7]]
+    ; CHECK: [[SHL6:%[0-9]+]]:_(s32) = G_SHL [[AND13]], [[C3]](s32)
+    ; CHECK: [[OR6:%[0-9]+]]:_(s32) = G_OR [[AND12]], [[SHL6]]
+    ; CHECK: [[BITCAST6:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR6]](s32)
+    ; CHECK: [[COPY31:%[0-9]+]]:_(s32) = COPY [[ANYEXT14]](s32)
+    ; CHECK: [[AND14:%[0-9]+]]:_(s32) = G_AND [[COPY31]], [[C7]]
+    ; CHECK: [[COPY32:%[0-9]+]]:_(s32) = COPY [[ANYEXT15]](s32)
+    ; CHECK: [[AND15:%[0-9]+]]:_(s32) = G_AND [[COPY32]], [[C7]]
+    ; CHECK: [[SHL7:%[0-9]+]]:_(s32) = G_SHL [[AND15]], [[C3]](s32)
+    ; CHECK: [[OR7:%[0-9]+]]:_(s32) = G_OR [[AND14]], [[SHL7]]
+    ; CHECK: [[BITCAST7:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR7]](s32)
+    ; CHECK: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s16>) = G_CONCAT_VECTORS [[BITCAST]](<2 x s16>), [[BITCAST1]](<2 x s16>), [[BITCAST2]](<2 x s16>), [[BITCAST3]](<2 x s16>), [[BITCAST4]](<2 x s16>), [[BITCAST5]](<2 x s16>), [[BITCAST6]](<2 x s16>), [[BITCAST7]](<2 x s16>)
+    ; CHECK: S_ENDPGM 0, implicit [[CONCAT_VECTORS]](<16 x s16>)
     %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
     %1:_(<16 x s4>) = G_BITCAST %0
     %2:_(<16 x s4>) = G_ADD %1, %1
@@ -922,9 +1157,95 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v16s4_to_v2s32
     ; CHECK: [[COPY:%[0-9]+]]:_(<16 x s16>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(<16 x s4>) = G_TRUNC [[COPY]](<16 x s16>)
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s32>) = G_BITCAST [[TRUNC]](<16 x s4>)
-    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<2 x s32>)
+    ; CHECK: [[UV:%[0-9]+]]:_(<8 x s16>), [[UV1:%[0-9]+]]:_(<8 x s16>) = G_UNMERGE_VALUES [[COPY]](<16 x s16>)
+    ; CHECK: [[UV2:%[0-9]+]]:_(<2 x s16>), [[UV3:%[0-9]+]]:_(<2 x s16>), [[UV4:%[0-9]+]]:_(<2 x s16>), [[UV5:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[UV]](<8 x s16>)
+    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[UV2]](<2 x s16>)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
+    ; CHECK: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[UV3]](<2 x s16>)
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
+    ; CHECK: [[BITCAST2:%[0-9]+]]:_(s32) = G_BITCAST [[UV4]](<2 x s16>)
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST2]], [[C]](s32)
+    ; CHECK: [[BITCAST3:%[0-9]+]]:_(s32) = G_BITCAST [[UV5]](<2 x s16>)
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST3]], [[C]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 15
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY [[BITCAST]](s32)
+    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C1]]
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY2]], [[C1]]
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
+    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND1]], [[C2]](s32)
+    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND]], [[SHL]]
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[BITCAST1]](s32)
+    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C1]]
+    ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[AND2]], [[C3]](s32)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[OR]], [[SHL1]]
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C1]]
+    ; CHECK: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s32) = G_SHL [[AND3]], [[C4]](s32)
+    ; CHECK: [[OR2:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[SHL2]]
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[BITCAST2]](s32)
+    ; CHECK: [[AND4:%[0-9]+]]:_(s32) = G_AND [[COPY5]], [[C1]]
+    ; CHECK: [[SHL3:%[0-9]+]]:_(s32) = G_SHL [[AND4]], [[C]](s32)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s32) = G_OR [[OR2]], [[SHL3]]
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CHECK: [[AND5:%[0-9]+]]:_(s32) = G_AND [[COPY6]], [[C1]]
+    ; CHECK: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 20
+    ; CHECK: [[SHL4:%[0-9]+]]:_(s32) = G_SHL [[AND5]], [[C5]](s32)
+    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[OR3]], [[SHL4]]
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s32) = COPY [[BITCAST3]](s32)
+    ; CHECK: [[AND6:%[0-9]+]]:_(s32) = G_AND [[COPY7]], [[C1]]
+    ; CHECK: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CHECK: [[SHL5:%[0-9]+]]:_(s32) = G_SHL [[AND6]], [[C6]](s32)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s32) = G_OR [[OR4]], [[SHL5]]
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CHECK: [[AND7:%[0-9]+]]:_(s32) = G_AND [[COPY8]], [[C1]]
+    ; CHECK: [[C7:%[0-9]+]]:_(s32) = G_CONSTANT i32 28
+    ; CHECK: [[SHL6:%[0-9]+]]:_(s32) = G_SHL [[AND7]], [[C7]](s32)
+    ; CHECK: [[OR6:%[0-9]+]]:_(s32) = G_OR [[OR5]], [[SHL6]]
+    ; CHECK: [[UV6:%[0-9]+]]:_(<2 x s16>), [[UV7:%[0-9]+]]:_(<2 x s16>), [[UV8:%[0-9]+]]:_(<2 x s16>), [[UV9:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[UV1]](<8 x s16>)
+    ; CHECK: [[BITCAST4:%[0-9]+]]:_(s32) = G_BITCAST [[UV6]](<2 x s16>)
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST4]], [[C]](s32)
+    ; CHECK: [[BITCAST5:%[0-9]+]]:_(s32) = G_BITCAST [[UV7]](<2 x s16>)
+    ; CHECK: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST5]], [[C]](s32)
+    ; CHECK: [[BITCAST6:%[0-9]+]]:_(s32) = G_BITCAST [[UV8]](<2 x s16>)
+    ; CHECK: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST6]], [[C]](s32)
+    ; CHECK: [[BITCAST7:%[0-9]+]]:_(s32) = G_BITCAST [[UV9]](<2 x s16>)
+    ; CHECK: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST7]], [[C]](s32)
+    ; CHECK: [[COPY9:%[0-9]+]]:_(s32) = COPY [[BITCAST4]](s32)
+    ; CHECK: [[AND8:%[0-9]+]]:_(s32) = G_AND [[COPY9]], [[C1]]
+    ; CHECK: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CHECK: [[AND9:%[0-9]+]]:_(s32) = G_AND [[COPY10]], [[C1]]
+    ; CHECK: [[SHL7:%[0-9]+]]:_(s32) = G_SHL [[AND9]], [[C2]](s32)
+    ; CHECK: [[OR7:%[0-9]+]]:_(s32) = G_OR [[AND8]], [[SHL7]]
+    ; CHECK: [[COPY11:%[0-9]+]]:_(s32) = COPY [[BITCAST5]](s32)
+    ; CHECK: [[AND10:%[0-9]+]]:_(s32) = G_AND [[COPY11]], [[C1]]
+    ; CHECK: [[SHL8:%[0-9]+]]:_(s32) = G_SHL [[AND10]], [[C3]](s32)
+    ; CHECK: [[OR8:%[0-9]+]]:_(s32) = G_OR [[OR7]], [[SHL8]]
+    ; CHECK: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CHECK: [[AND11:%[0-9]+]]:_(s32) = G_AND [[COPY12]], [[C1]]
+    ; CHECK: [[SHL9:%[0-9]+]]:_(s32) = G_SHL [[AND11]], [[C4]](s32)
+    ; CHECK: [[OR9:%[0-9]+]]:_(s32) = G_OR [[OR8]], [[SHL9]]
+    ; CHECK: [[COPY13:%[0-9]+]]:_(s32) = COPY [[BITCAST6]](s32)
+    ; CHECK: [[AND12:%[0-9]+]]:_(s32) = G_AND [[COPY13]], [[C1]]
+    ; CHECK: [[SHL10:%[0-9]+]]:_(s32) = G_SHL [[AND12]], [[C]](s32)
+    ; CHECK: [[OR10:%[0-9]+]]:_(s32) = G_OR [[OR9]], [[SHL10]]
+    ; CHECK: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CHECK: [[AND13:%[0-9]+]]:_(s32) = G_AND [[COPY14]], [[C1]]
+    ; CHECK: [[SHL11:%[0-9]+]]:_(s32) = G_SHL [[AND13]], [[C5]](s32)
+    ; CHECK: [[OR11:%[0-9]+]]:_(s32) = G_OR [[OR10]], [[SHL11]]
+    ; CHECK: [[COPY15:%[0-9]+]]:_(s32) = COPY [[BITCAST7]](s32)
+    ; CHECK: [[AND14:%[0-9]+]]:_(s32) = G_AND [[COPY15]], [[C1]]
+    ; CHECK: [[SHL12:%[0-9]+]]:_(s32) = G_SHL [[AND14]], [[C6]](s32)
+    ; CHECK: [[OR12:%[0-9]+]]:_(s32) = G_OR [[OR11]], [[SHL12]]
+    ; CHECK: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CHECK: [[AND15:%[0-9]+]]:_(s32) = G_AND [[COPY16]], [[C1]]
+    ; CHECK: [[SHL13:%[0-9]+]]:_(s32) = G_SHL [[AND15]], [[C7]](s32)
+    ; CHECK: [[OR13:%[0-9]+]]:_(s32) = G_OR [[OR12]], [[SHL13]]
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[OR6]](s32), [[OR13]](s32)
+    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<2 x s32>)
     %0:_(<16 x s16>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7
     %1:_(<16 x s4>) = G_TRUNC %0
     %2:_(<2 x s32>) = G_BITCAST %1
@@ -1002,59 +1323,70 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v3s32_to_v12s8
     ; CHECK: [[COPY:%[0-9]+]]:_(<3 x s32>) = COPY $vgpr0_vgpr1_vgpr2
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<12 x s8>) = G_BITCAST [[COPY]](<3 x s32>)
-    ; CHECK: [[UV:%[0-9]+]]:_(s8), [[UV1:%[0-9]+]]:_(s8), [[UV2:%[0-9]+]]:_(s8), [[UV3:%[0-9]+]]:_(s8), [[UV4:%[0-9]+]]:_(s8), [[UV5:%[0-9]+]]:_(s8), [[UV6:%[0-9]+]]:_(s8), [[UV7:%[0-9]+]]:_(s8), [[UV8:%[0-9]+]]:_(s8), [[UV9:%[0-9]+]]:_(s8), [[UV10:%[0-9]+]]:_(s8), [[UV11:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[BITCAST]](<12 x s8>)
-    ; CHECK: [[UV12:%[0-9]+]]:_(s8), [[UV13:%[0-9]+]]:_(s8), [[UV14:%[0-9]+]]:_(s8), [[UV15:%[0-9]+]]:_(s8), [[UV16:%[0-9]+]]:_(s8), [[UV17:%[0-9]+]]:_(s8), [[UV18:%[0-9]+]]:_(s8), [[UV19:%[0-9]+]]:_(s8), [[UV20:%[0-9]+]]:_(s8), [[UV21:%[0-9]+]]:_(s8), [[UV22:%[0-9]+]]:_(s8), [[UV23:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[BITCAST]](<12 x s8>)
-    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[UV]](s8)
-    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[UV12]](s8)
-    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT]], [[ANYEXT1]]
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[ADD]](s16)
-    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s16) = G_ANYEXT [[UV1]](s8)
-    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s16) = G_ANYEXT [[UV13]](s8)
-    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT2]], [[ANYEXT3]]
-    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[ADD1]](s16)
-    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s16) = G_ANYEXT [[UV2]](s8)
-    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s16) = G_ANYEXT [[UV14]](s8)
-    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT4]], [[ANYEXT5]]
-    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[ADD2]](s16)
-    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s16) = G_ANYEXT [[UV3]](s8)
-    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s16) = G_ANYEXT [[UV15]](s8)
-    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT6]], [[ANYEXT7]]
-    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[ADD3]](s16)
-    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s16) = G_ANYEXT [[UV4]](s8)
-    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s16) = G_ANYEXT [[UV16]](s8)
-    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT8]], [[ANYEXT9]]
-    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[ADD4]](s16)
-    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s16) = G_ANYEXT [[UV5]](s8)
-    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s16) = G_ANYEXT [[UV17]](s8)
-    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT10]], [[ANYEXT11]]
-    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[ADD5]](s16)
-    ; CHECK: [[ANYEXT12:%[0-9]+]]:_(s16) = G_ANYEXT [[UV6]](s8)
-    ; CHECK: [[ANYEXT13:%[0-9]+]]:_(s16) = G_ANYEXT [[UV18]](s8)
-    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT12]], [[ANYEXT13]]
-    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[ADD6]](s16)
-    ; CHECK: [[ANYEXT14:%[0-9]+]]:_(s16) = G_ANYEXT [[UV7]](s8)
-    ; CHECK: [[ANYEXT15:%[0-9]+]]:_(s16) = G_ANYEXT [[UV19]](s8)
-    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT14]], [[ANYEXT15]]
-    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[ADD7]](s16)
-    ; CHECK: [[ANYEXT16:%[0-9]+]]:_(s16) = G_ANYEXT [[UV8]](s8)
-    ; CHECK: [[ANYEXT17:%[0-9]+]]:_(s16) = G_ANYEXT [[UV20]](s8)
-    ; CHECK: [[ADD8:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT16]], [[ANYEXT17]]
-    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[ADD8]](s16)
-    ; CHECK: [[ANYEXT18:%[0-9]+]]:_(s16) = G_ANYEXT [[UV9]](s8)
-    ; CHECK: [[ANYEXT19:%[0-9]+]]:_(s16) = G_ANYEXT [[UV21]](s8)
-    ; CHECK: [[ADD9:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT18]], [[ANYEXT19]]
-    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[ADD9]](s16)
-    ; CHECK: [[ANYEXT20:%[0-9]+]]:_(s16) = G_ANYEXT [[UV10]](s8)
-    ; CHECK: [[ANYEXT21:%[0-9]+]]:_(s16) = G_ANYEXT [[UV22]](s8)
-    ; CHECK: [[ADD10:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT20]], [[ANYEXT21]]
-    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[ADD10]](s16)
-    ; CHECK: [[ANYEXT22:%[0-9]+]]:_(s16) = G_ANYEXT [[UV11]](s8)
-    ; CHECK: [[ANYEXT23:%[0-9]+]]:_(s16) = G_ANYEXT [[UV23]](s8)
-    ; CHECK: [[ADD11:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT22]], [[ANYEXT23]]
-    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[ADD11]](s16)
-    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<12 x s8>) = G_BUILD_VECTOR [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8), [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8), [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8)
-    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<12 x s8>)
+    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<3 x s32>)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CHECK: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CHECK: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CHECK: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CHECK: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV]](s32)
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[TRUNC]](s16)
+    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[TRUNC]], [[COPY1]]
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s16) = COPY [[TRUNC1]](s16)
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[TRUNC1]], [[COPY2]]
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s16) = COPY [[TRUNC2]](s16)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[TRUNC2]], [[COPY3]]
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR2]](s32)
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s16) = COPY [[TRUNC3]](s16)
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[TRUNC3]], [[COPY4]]
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[UV1]](s32)
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s16) = COPY [[TRUNC4]](s16)
+    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[TRUNC4]], [[COPY5]]
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR3]](s32)
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s16) = COPY [[TRUNC5]](s16)
+    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[TRUNC5]], [[COPY6]]
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR4]](s32)
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s16) = COPY [[TRUNC6]](s16)
+    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[TRUNC6]], [[COPY7]]
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR5]](s32)
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s16) = COPY [[TRUNC7]](s16)
+    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[TRUNC7]], [[COPY8]]
+    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s16) = G_TRUNC [[UV2]](s32)
+    ; CHECK: [[COPY9:%[0-9]+]]:_(s16) = COPY [[TRUNC8]](s16)
+    ; CHECK: [[ADD8:%[0-9]+]]:_(s16) = G_ADD [[TRUNC8]], [[COPY9]]
+    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR6]](s32)
+    ; CHECK: [[COPY10:%[0-9]+]]:_(s16) = COPY [[TRUNC9]](s16)
+    ; CHECK: [[ADD9:%[0-9]+]]:_(s16) = G_ADD [[TRUNC9]], [[COPY10]]
+    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR7]](s32)
+    ; CHECK: [[COPY11:%[0-9]+]]:_(s16) = COPY [[TRUNC10]](s16)
+    ; CHECK: [[ADD10:%[0-9]+]]:_(s16) = G_ADD [[TRUNC10]], [[COPY11]]
+    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR8]](s32)
+    ; CHECK: [[COPY12:%[0-9]+]]:_(s16) = COPY [[TRUNC11]](s16)
+    ; CHECK: [[ADD11:%[0-9]+]]:_(s16) = G_ADD [[TRUNC11]], [[COPY12]]
+    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD]](s16)
+    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD1]](s16)
+    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD2]](s16)
+    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD3]](s16)
+    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD4]](s16)
+    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD5]](s16)
+    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD6]](s16)
+    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD7]](s16)
+    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD8]](s16)
+    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD9]](s16)
+    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD10]](s16)
+    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD11]](s16)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<12 x s32>) = G_BUILD_VECTOR [[ANYEXT]](s32), [[ANYEXT1]](s32), [[ANYEXT2]](s32), [[ANYEXT3]](s32), [[ANYEXT4]](s32), [[ANYEXT5]](s32), [[ANYEXT6]](s32), [[ANYEXT7]](s32), [[ANYEXT8]](s32), [[ANYEXT9]](s32), [[ANYEXT10]](s32), [[ANYEXT11]](s32)
+    ; CHECK: [[TRUNC12:%[0-9]+]]:_(<12 x s8>) = G_TRUNC [[BUILD_VECTOR]](<12 x s32>)
+    ; CHECK: S_ENDPGM 0, implicit [[TRUNC12]](<12 x s8>)
     %0:_(<3 x s32>) = COPY $vgpr0_vgpr1_vgpr2
     %1:_(<12 x s8>) = G_BITCAST %0
     %2:_(<12 x s8>) = G_ADD %1, %1
@@ -1072,10 +1404,57 @@ body: |
     ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
     ; CHECK: [[COPY1:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr4_vgpr5_vgpr6_vgpr7
     ; CHECK: [[COPY2:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr8_vgpr9_vgpr10_vgpr11
-    ; CHECK: [[CONCAT_VECTORS:%[0-9]+]]:_(<12 x s32>) = G_CONCAT_VECTORS [[COPY]](<4 x s32>), [[COPY1]](<4 x s32>), [[COPY2]](<4 x s32>)
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(<12 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<12 x s32>)
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<3 x s32>) = G_BITCAST [[TRUNC]](<12 x s8>)
-    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<3 x s32>)
+    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 255
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C]]
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND1]], [[C1]](s32)
+    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND]], [[SHL]]
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY5]], [[C]]
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[AND2]], [[C2]](s32)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[OR]], [[SHL1]]
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[COPY6]], [[C]]
+    ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s32) = G_SHL [[AND3]], [[C3]](s32)
+    ; CHECK: [[OR2:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[SHL2]]
+    ; CHECK: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY1]](<4 x s32>)
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; CHECK: [[AND4:%[0-9]+]]:_(s32) = G_AND [[COPY7]], [[C]]
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; CHECK: [[AND5:%[0-9]+]]:_(s32) = G_AND [[COPY8]], [[C]]
+    ; CHECK: [[SHL3:%[0-9]+]]:_(s32) = G_SHL [[AND5]], [[C1]](s32)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s32) = G_OR [[AND4]], [[SHL3]]
+    ; CHECK: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; CHECK: [[AND6:%[0-9]+]]:_(s32) = G_AND [[COPY9]], [[C]]
+    ; CHECK: [[SHL4:%[0-9]+]]:_(s32) = G_SHL [[AND6]], [[C2]](s32)
+    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[OR3]], [[SHL4]]
+    ; CHECK: [[COPY10:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; CHECK: [[AND7:%[0-9]+]]:_(s32) = G_AND [[COPY10]], [[C]]
+    ; CHECK: [[SHL5:%[0-9]+]]:_(s32) = G_SHL [[AND7]], [[C3]](s32)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s32) = G_OR [[OR4]], [[SHL5]]
+    ; CHECK: [[UV8:%[0-9]+]]:_(s32), [[UV9:%[0-9]+]]:_(s32), [[UV10:%[0-9]+]]:_(s32), [[UV11:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY2]](<4 x s32>)
+    ; CHECK: [[COPY11:%[0-9]+]]:_(s32) = COPY [[UV8]](s32)
+    ; CHECK: [[AND8:%[0-9]+]]:_(s32) = G_AND [[COPY11]], [[C]]
+    ; CHECK: [[COPY12:%[0-9]+]]:_(s32) = COPY [[UV9]](s32)
+    ; CHECK: [[AND9:%[0-9]+]]:_(s32) = G_AND [[COPY12]], [[C]]
+    ; CHECK: [[SHL6:%[0-9]+]]:_(s32) = G_SHL [[AND9]], [[C1]](s32)
+    ; CHECK: [[OR6:%[0-9]+]]:_(s32) = G_OR [[AND8]], [[SHL6]]
+    ; CHECK: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV10]](s32)
+    ; CHECK: [[AND10:%[0-9]+]]:_(s32) = G_AND [[COPY13]], [[C]]
+    ; CHECK: [[SHL7:%[0-9]+]]:_(s32) = G_SHL [[AND10]], [[C2]](s32)
+    ; CHECK: [[OR7:%[0-9]+]]:_(s32) = G_OR [[OR6]], [[SHL7]]
+    ; CHECK: [[COPY14:%[0-9]+]]:_(s32) = COPY [[UV11]](s32)
+    ; CHECK: [[AND11:%[0-9]+]]:_(s32) = G_AND [[COPY14]], [[C]]
+    ; CHECK: [[SHL8:%[0-9]+]]:_(s32) = G_SHL [[AND11]], [[C3]](s32)
+    ; CHECK: [[OR8:%[0-9]+]]:_(s32) = G_OR [[OR7]], [[SHL8]]
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<3 x s32>) = G_BUILD_VECTOR [[OR2]](s32), [[OR5]](s32), [[OR8]](s32)
+    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<3 x s32>)
     %0:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
     %1:_(<4 x s32>) = COPY $vgpr4_vgpr5_vgpr6_vgpr7
     %2:_(<4 x s32>) = COPY $vgpr8_vgpr9_vgpr10_vgpr11
@@ -1093,10 +1472,60 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v6s8_to_v3s16
     ; CHECK: [[COPY:%[0-9]+]]:_(<6 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(<6 x s8>) = G_TRUNC [[COPY]](<6 x s32>)
-    ; CHECK: [[ADD:%[0-9]+]]:_(<6 x s8>) = G_ADD [[TRUNC]], [[TRUNC]]
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<3 x s16>) = G_BITCAST [[ADD]](<6 x s8>)
-    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<3 x s16>)
+    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<6 x s32>)
+    ; CHECK: [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32), [[UV8:%[0-9]+]]:_(s32), [[UV9:%[0-9]+]]:_(s32), [[UV10:%[0-9]+]]:_(s32), [[UV11:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<6 x s32>)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV]](s32)
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[UV6]](s32)
+    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[TRUNC]], [[TRUNC1]]
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[UV1]](s32)
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[UV7]](s32)
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[TRUNC2]], [[TRUNC3]]
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[UV2]](s32)
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[UV8]](s32)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[TRUNC4]], [[TRUNC5]]
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[UV3]](s32)
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[UV9]](s32)
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[TRUNC6]], [[TRUNC7]]
+    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s16) = G_TRUNC [[UV4]](s32)
+    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s16) = G_TRUNC [[UV10]](s32)
+    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[TRUNC8]], [[TRUNC9]]
+    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s16) = G_TRUNC [[UV5]](s32)
+    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s16) = G_TRUNC [[UV11]](s32)
+    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[TRUNC10]], [[TRUNC11]]
+    ; CHECK: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 255
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[ADD]](s16)
+    ; CHECK: [[AND:%[0-9]+]]:_(s16) = G_AND [[COPY1]], [[C]]
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s16) = COPY [[ADD1]](s16)
+    ; CHECK: [[AND1:%[0-9]+]]:_(s16) = G_AND [[COPY2]], [[C]]
+    ; CHECK: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; CHECK: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[AND1]], [[C1]](s16)
+    ; CHECK: [[OR:%[0-9]+]]:_(s16) = G_OR [[AND]], [[SHL]]
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s16) = COPY [[ADD2]](s16)
+    ; CHECK: [[AND2:%[0-9]+]]:_(s16) = G_AND [[COPY3]], [[C]]
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s16) = COPY [[ADD3]](s16)
+    ; CHECK: [[AND3:%[0-9]+]]:_(s16) = G_AND [[COPY4]], [[C]]
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[AND3]], [[C1]](s16)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s16) = G_OR [[AND2]], [[SHL1]]
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s16) = COPY [[ADD4]](s16)
+    ; CHECK: [[AND4:%[0-9]+]]:_(s16) = G_AND [[COPY5]], [[C]]
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s16) = COPY [[ADD5]](s16)
+    ; CHECK: [[AND5:%[0-9]+]]:_(s16) = G_AND [[COPY6]], [[C]]
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s16) = G_SHL [[AND5]], [[C1]](s16)
+    ; CHECK: [[OR2:%[0-9]+]]:_(s16) = G_OR [[AND4]], [[SHL2]]
+    ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[OR]](s16)
+    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[OR1]](s16)
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[SHL3:%[0-9]+]]:_(s32) = G_SHL [[ZEXT1]], [[C2]](s32)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s32) = G_OR [[ZEXT]], [[SHL3]]
+    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR3]](s32)
+    ; CHECK: [[ZEXT2:%[0-9]+]]:_(s32) = G_ZEXT [[OR2]](s16)
+    ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
+    ; CHECK: [[SHL4:%[0-9]+]]:_(s32) = G_SHL [[C3]], [[C2]](s32)
+    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[ZEXT2]], [[SHL4]]
+    ; CHECK: [[BITCAST1:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR4]](s32)
+    ; CHECK: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BITCAST]](<2 x s16>), [[BITCAST1]](<2 x s16>)
+    ; CHECK: [[EXTRACT:%[0-9]+]]:_(<3 x s16>) = G_EXTRACT [[CONCAT_VECTORS]](<4 x s16>), 0
+    ; CHECK: S_ENDPGM 0, implicit [[EXTRACT]](<3 x s16>)
     %0:_(<6 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5
     %1:_(<6 x s8>) = G_TRUNC %0
     %2:_(<6 x s8>) = G_ADD %1, %1
@@ -1112,10 +1541,35 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v3s16_to_v6s8
     ; CHECK: [[COPY:%[0-9]+]]:_(<3 x s32>) = COPY $vgpr0_vgpr1_vgpr2
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(<3 x s16>) = G_TRUNC [[COPY]](<3 x s32>)
-    ; CHECK: [[ADD:%[0-9]+]]:_(<3 x s16>) = G_ADD [[TRUNC]], [[TRUNC]]
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<6 x s8>) = G_BITCAST [[ADD]](<3 x s16>)
-    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<6 x s8>)
+    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<3 x s32>)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV]](s32)
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[UV1]](s32)
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[UV2]](s32)
+    ; CHECK: [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<3 x s32>)
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[UV3]](s32)
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[UV4]](s32)
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[UV5]](s32)
+    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[TRUNC]], [[TRUNC3]]
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[TRUNC1]], [[TRUNC4]]
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[TRUNC2]], [[TRUNC5]]
+    ; CHECK: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s16) = G_LSHR [[ADD]], [[C]](s16)
+    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD]](s16)
+    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR]](s16)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[ANYEXT]](s32), [[ANYEXT1]](s32)
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(<2 x s8>) = G_TRUNC [[BUILD_VECTOR]](<2 x s32>)
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s16) = G_LSHR [[ADD1]], [[C]](s16)
+    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD1]](s16)
+    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR1]](s16)
+    ; CHECK: [[BUILD_VECTOR1:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[ANYEXT2]](s32), [[ANYEXT3]](s32)
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(<2 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<2 x s32>)
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s16) = G_LSHR [[ADD2]], [[C]](s16)
+    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD2]](s16)
+    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR2]](s16)
+    ; CHECK: [[BUILD_VECTOR2:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[ANYEXT4]](s32), [[ANYEXT5]](s32)
+    ; CHECK: [[TRUNC8:%[0-9]+]]:_(<2 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<2 x s32>)
+    ; CHECK: [[CONCAT_VECTORS:%[0-9]+]]:_(<6 x s8>) = G_CONCAT_VECTORS [[TRUNC6]](<2 x s8>), [[TRUNC7]](<2 x s8>), [[TRUNC8]](<2 x s8>)
+    ; CHECK: S_ENDPGM 0, implicit [[CONCAT_VECTORS]](<6 x s8>)
     %0:_(<3 x s32>) = COPY $vgpr0_vgpr1_vgpr2
     %1:_(<3 x s16>) = G_TRUNC %0
     %2:_(<3 x s16>) = G_ADD %1, %1
@@ -1131,76 +1585,113 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v2s64_to_v16s8
     ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[COPY]](<2 x s64>)
-    ; CHECK: [[UV:%[0-9]+]]:_(s8), [[UV1:%[0-9]+]]:_(s8), [[UV2:%[0-9]+]]:_(s8), [[UV3:%[0-9]+]]:_(s8), [[UV4:%[0-9]+]]:_(s8), [[UV5:%[0-9]+]]:_(s8), [[UV6:%[0-9]+]]:_(s8), [[UV7:%[0-9]+]]:_(s8), [[UV8:%[0-9]+]]:_(s8), [[UV9:%[0-9]+]]:_(s8), [[UV10:%[0-9]+]]:_(s8), [[UV11:%[0-9]+]]:_(s8), [[UV12:%[0-9]+]]:_(s8), [[UV13:%[0-9]+]]:_(s8), [[UV14:%[0-9]+]]:_(s8), [[UV15:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[BITCAST]](<16 x s8>)
-    ; CHECK: [[UV16:%[0-9]+]]:_(s8), [[UV17:%[0-9]+]]:_(s8), [[UV18:%[0-9]+]]:_(s8), [[UV19:%[0-9]+]]:_(s8), [[UV20:%[0-9]+]]:_(s8), [[UV21:%[0-9]+]]:_(s8), [[UV22:%[0-9]+]]:_(s8), [[UV23:%[0-9]+]]:_(s8), [[UV24:%[0-9]+]]:_(s8), [[UV25:%[0-9]+]]:_(s8), [[UV26:%[0-9]+]]:_(s8), [[UV27:%[0-9]+]]:_(s8), [[UV28:%[0-9]+]]:_(s8), [[UV29:%[0-9]+]]:_(s8), [[UV30:%[0-9]+]]:_(s8), [[UV31:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[BITCAST]](<16 x s8>)
-    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[UV]](s8)
-    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[UV16]](s8)
-    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT]], [[ANYEXT1]]
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[ADD]](s16)
-    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s16) = G_ANYEXT [[UV1]](s8)
-    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s16) = G_ANYEXT [[UV17]](s8)
-    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT2]], [[ANYEXT3]]
-    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[ADD1]](s16)
-    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s16) = G_ANYEXT [[UV2]](s8)
-    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s16) = G_ANYEXT [[UV18]](s8)
-    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT4]], [[ANYEXT5]]
-    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[ADD2]](s16)
-    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s16) = G_ANYEXT [[UV3]](s8)
-    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s16) = G_ANYEXT [[UV19]](s8)
-    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT6]], [[ANYEXT7]]
-    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[ADD3]](s16)
-    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s16) = G_ANYEXT [[UV4]](s8)
-    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s16) = G_ANYEXT [[UV20]](s8)
-    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT8]], [[ANYEXT9]]
-    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[ADD4]](s16)
-    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s16) = G_ANYEXT [[UV5]](s8)
-    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s16) = G_ANYEXT [[UV21]](s8)
-    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT10]], [[ANYEXT11]]
-    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[ADD5]](s16)
-    ; CHECK: [[ANYEXT12:%[0-9]+]]:_(s16) = G_ANYEXT [[UV6]](s8)
-    ; CHECK: [[ANYEXT13:%[0-9]+]]:_(s16) = G_ANYEXT [[UV22]](s8)
-    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT12]], [[ANYEXT13]]
-    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[ADD6]](s16)
-    ; CHECK: [[ANYEXT14:%[0-9]+]]:_(s16) = G_ANYEXT [[UV7]](s8)
-    ; CHECK: [[ANYEXT15:%[0-9]+]]:_(s16) = G_ANYEXT [[UV23]](s8)
-    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT14]], [[ANYEXT15]]
-    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[ADD7]](s16)
-    ; CHECK: [[ANYEXT16:%[0-9]+]]:_(s16) = G_ANYEXT [[UV8]](s8)
-    ; CHECK: [[ANYEXT17:%[0-9]+]]:_(s16) = G_ANYEXT [[UV24]](s8)
-    ; CHECK: [[ADD8:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT16]], [[ANYEXT17]]
-    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[ADD8]](s16)
-    ; CHECK: [[ANYEXT18:%[0-9]+]]:_(s16) = G_ANYEXT [[UV9]](s8)
-    ; CHECK: [[ANYEXT19:%[0-9]+]]:_(s16) = G_ANYEXT [[UV25]](s8)
-    ; CHECK: [[ADD9:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT18]], [[ANYEXT19]]
-    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[ADD9]](s16)
-    ; CHECK: [[ANYEXT20:%[0-9]+]]:_(s16) = G_ANYEXT [[UV10]](s8)
-    ; CHECK: [[ANYEXT21:%[0-9]+]]:_(s16) = G_ANYEXT [[UV26]](s8)
-    ; CHECK: [[ADD10:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT20]], [[ANYEXT21]]
-    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[ADD10]](s16)
-    ; CHECK: [[ANYEXT22:%[0-9]+]]:_(s16) = G_ANYEXT [[UV11]](s8)
-    ; CHECK: [[ANYEXT23:%[0-9]+]]:_(s16) = G_ANYEXT [[UV27]](s8)
-    ; CHECK: [[ADD11:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT22]], [[ANYEXT23]]
-    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[ADD11]](s16)
-    ; CHECK: [[ANYEXT24:%[0-9]+]]:_(s16) = G_ANYEXT [[UV12]](s8)
-    ; CHECK: [[ANYEXT25:%[0-9]+]]:_(s16) = G_ANYEXT [[UV28]](s8)
-    ; CHECK: [[ADD12:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT24]], [[ANYEXT25]]
-    ; CHECK: [[TRUNC12:%[0-9]+]]:_(s8) = G_TRUNC [[ADD12]](s16)
-    ; CHECK: [[ANYEXT26:%[0-9]+]]:_(s16) = G_ANYEXT [[UV13]](s8)
-    ; CHECK: [[ANYEXT27:%[0-9]+]]:_(s16) = G_ANYEXT [[UV29]](s8)
-    ; CHECK: [[ADD13:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT26]], [[ANYEXT27]]
-    ; CHECK: [[TRUNC13:%[0-9]+]]:_(s8) = G_TRUNC [[ADD13]](s16)
-    ; CHECK: [[ANYEXT28:%[0-9]+]]:_(s16) = G_ANYEXT [[UV14]](s8)
-    ; CHECK: [[ANYEXT29:%[0-9]+]]:_(s16) = G_ANYEXT [[UV30]](s8)
-    ; CHECK: [[ADD14:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT28]], [[ANYEXT29]]
-    ; CHECK: [[TRUNC14:%[0-9]+]]:_(s8) = G_TRUNC [[ADD14]](s16)
-    ; CHECK: [[ANYEXT30:%[0-9]+]]:_(s16) = G_ANYEXT [[UV15]](s8)
-    ; CHECK: [[ANYEXT31:%[0-9]+]]:_(s16) = G_ANYEXT [[UV31]](s8)
-    ; CHECK: [[ADD15:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT30]], [[ANYEXT31]]
-    ; CHECK: [[TRUNC15:%[0-9]+]]:_(s8) = G_TRUNC [[ADD15]](s16)
-    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<16 x s8>) = G_BUILD_VECTOR [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8), [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8), [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8), [[TRUNC12]](s8), [[TRUNC13]](s8), [[TRUNC14]](s8), [[TRUNC15]](s8)
-    ; CHECK: [[ANYEXT32:%[0-9]+]]:_(<16 x s32>) = G_ANYEXT [[BUILD_VECTOR]](<16 x s8>)
-    ; CHECK: S_ENDPGM 0, implicit [[ANYEXT32]](<16 x s32>)
+    ; CHECK: [[UV:%[0-9]+]]:_(s64), [[UV1:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY]](<2 x s64>)
+    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV]](s64)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV2]](s32)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[UV3]](s32)
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC]], [[C1]](s16)
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC1]], [[C1]](s16)
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC2]], [[C1]](s16)
+    ; CHECK: [[LSHR5:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC3]], [[C1]](s16)
+    ; CHECK: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV1]](s64)
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[UV4]](s32)
+    ; CHECK: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR6]](s32)
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[UV5]](s32)
+    ; CHECK: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR7]](s32)
+    ; CHECK: [[LSHR8:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC4]], [[C1]](s16)
+    ; CHECK: [[LSHR9:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC5]], [[C1]](s16)
+    ; CHECK: [[LSHR10:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC6]], [[C1]](s16)
+    ; CHECK: [[LSHR11:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC7]], [[C1]](s16)
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[TRUNC]](s16)
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s16) = COPY [[TRUNC]](s16)
+    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[COPY1]], [[COPY2]]
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s16) = COPY [[LSHR2]](s16)
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s16) = COPY [[LSHR2]](s16)
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[COPY3]], [[COPY4]]
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s16) = COPY [[TRUNC1]](s16)
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s16) = COPY [[TRUNC1]](s16)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[COPY5]], [[COPY6]]
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s16) = COPY [[LSHR3]](s16)
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s16) = COPY [[LSHR3]](s16)
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[COPY7]], [[COPY8]]
+    ; CHECK: [[COPY9:%[0-9]+]]:_(s16) = COPY [[TRUNC2]](s16)
+    ; CHECK: [[COPY10:%[0-9]+]]:_(s16) = COPY [[TRUNC2]](s16)
+    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[COPY9]], [[COPY10]]
+    ; CHECK: [[COPY11:%[0-9]+]]:_(s16) = COPY [[LSHR4]](s16)
+    ; CHECK: [[COPY12:%[0-9]+]]:_(s16) = COPY [[LSHR4]](s16)
+    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[COPY11]], [[COPY12]]
+    ; CHECK: [[COPY13:%[0-9]+]]:_(s16) = COPY [[TRUNC3]](s16)
+    ; CHECK: [[COPY14:%[0-9]+]]:_(s16) = COPY [[TRUNC3]](s16)
+    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[COPY13]], [[COPY14]]
+    ; CHECK: [[COPY15:%[0-9]+]]:_(s16) = COPY [[LSHR5]](s16)
+    ; CHECK: [[COPY16:%[0-9]+]]:_(s16) = COPY [[LSHR5]](s16)
+    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[COPY15]], [[COPY16]]
+    ; CHECK: [[COPY17:%[0-9]+]]:_(s16) = COPY [[TRUNC4]](s16)
+    ; CHECK: [[COPY18:%[0-9]+]]:_(s16) = COPY [[TRUNC4]](s16)
+    ; CHECK: [[ADD8:%[0-9]+]]:_(s16) = G_ADD [[COPY17]], [[COPY18]]
+    ; CHECK: [[COPY19:%[0-9]+]]:_(s16) = COPY [[LSHR8]](s16)
+    ; CHECK: [[COPY20:%[0-9]+]]:_(s16) = COPY [[LSHR8]](s16)
+    ; CHECK: [[ADD9:%[0-9]+]]:_(s16) = G_ADD [[COPY19]], [[COPY20]]
+    ; CHECK: [[COPY21:%[0-9]+]]:_(s16) = COPY [[TRUNC5]](s16)
+    ; CHECK: [[COPY22:%[0-9]+]]:_(s16) = COPY [[TRUNC5]](s16)
+    ; CHECK: [[ADD10:%[0-9]+]]:_(s16) = G_ADD [[COPY21]], [[COPY22]]
+    ; CHECK: [[COPY23:%[0-9]+]]:_(s16) = COPY [[LSHR9]](s16)
+    ; CHECK: [[COPY24:%[0-9]+]]:_(s16) = COPY [[LSHR9]](s16)
+    ; CHECK: [[ADD11:%[0-9]+]]:_(s16) = G_ADD [[COPY23]], [[COPY24]]
+    ; CHECK: [[COPY25:%[0-9]+]]:_(s16) = COPY [[TRUNC6]](s16)
+    ; CHECK: [[COPY26:%[0-9]+]]:_(s16) = COPY [[TRUNC6]](s16)
+    ; CHECK: [[ADD12:%[0-9]+]]:_(s16) = G_ADD [[COPY25]], [[COPY26]]
+    ; CHECK: [[COPY27:%[0-9]+]]:_(s16) = COPY [[LSHR10]](s16)
+    ; CHECK: [[COPY28:%[0-9]+]]:_(s16) = COPY [[LSHR10]](s16)
+    ; CHECK: [[ADD13:%[0-9]+]]:_(s16) = G_ADD [[COPY27]], [[COPY28]]
+    ; CHECK: [[COPY29:%[0-9]+]]:_(s16) = COPY [[TRUNC7]](s16)
+    ; CHECK: [[COPY30:%[0-9]+]]:_(s16) = COPY [[TRUNC7]](s16)
+    ; CHECK: [[ADD14:%[0-9]+]]:_(s16) = G_ADD [[COPY29]], [[COPY30]]
+    ; CHECK: [[COPY31:%[0-9]+]]:_(s16) = COPY [[LSHR11]](s16)
+    ; CHECK: [[COPY32:%[0-9]+]]:_(s16) = COPY [[LSHR11]](s16)
+    ; CHECK: [[ADD15:%[0-9]+]]:_(s16) = G_ADD [[COPY31]], [[COPY32]]
+    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD]](s16)
+    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD1]](s16)
+    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD2]](s16)
+    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD3]](s16)
+    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD4]](s16)
+    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD5]](s16)
+    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD6]](s16)
+    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD7]](s16)
+    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD8]](s16)
+    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD9]](s16)
+    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD10]](s16)
+    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD11]](s16)
+    ; CHECK: [[ANYEXT12:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD12]](s16)
+    ; CHECK: [[ANYEXT13:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD13]](s16)
+    ; CHECK: [[ANYEXT14:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD14]](s16)
+    ; CHECK: [[ANYEXT15:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD15]](s16)
+    ; CHECK: [[COPY33:%[0-9]+]]:_(s32) = COPY [[ANYEXT]](s32)
+    ; CHECK: [[COPY34:%[0-9]+]]:_(s32) = COPY [[ANYEXT1]](s32)
+    ; CHECK: [[COPY35:%[0-9]+]]:_(s32) = COPY [[ANYEXT2]](s32)
+    ; CHECK: [[COPY36:%[0-9]+]]:_(s32) = COPY [[ANYEXT3]](s32)
+    ; CHECK: [[COPY37:%[0-9]+]]:_(s32) = COPY [[ANYEXT4]](s32)
+    ; CHECK: [[COPY38:%[0-9]+]]:_(s32) = COPY [[ANYEXT5]](s32)
+    ; CHECK: [[COPY39:%[0-9]+]]:_(s32) = COPY [[ANYEXT6]](s32)
+    ; CHECK: [[COPY40:%[0-9]+]]:_(s32) = COPY [[ANYEXT7]](s32)
+    ; CHECK: [[COPY41:%[0-9]+]]:_(s32) = COPY [[ANYEXT8]](s32)
+    ; CHECK: [[COPY42:%[0-9]+]]:_(s32) = COPY [[ANYEXT9]](s32)
+    ; CHECK: [[COPY43:%[0-9]+]]:_(s32) = COPY [[ANYEXT10]](s32)
+    ; CHECK: [[COPY44:%[0-9]+]]:_(s32) = COPY [[ANYEXT11]](s32)
+    ; CHECK: [[COPY45:%[0-9]+]]:_(s32) = COPY [[ANYEXT12]](s32)
+    ; CHECK: [[COPY46:%[0-9]+]]:_(s32) = COPY [[ANYEXT13]](s32)
+    ; CHECK: [[COPY47:%[0-9]+]]:_(s32) = COPY [[ANYEXT14]](s32)
+    ; CHECK: [[COPY48:%[0-9]+]]:_(s32) = COPY [[ANYEXT15]](s32)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<16 x s32>) = G_BUILD_VECTOR [[COPY33]](s32), [[COPY34]](s32), [[COPY35]](s32), [[COPY36]](s32), [[COPY37]](s32), [[COPY38]](s32), [[COPY39]](s32), [[COPY40]](s32), [[COPY41]](s32), [[COPY42]](s32), [[COPY43]](s32), [[COPY44]](s32), [[COPY45]](s32), [[COPY46]](s32), [[COPY47]](s32), [[COPY48]](s32)
+    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<16 x s32>)
     %0:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
     %1:_(<16 x s8>) = G_BITCAST %0
     %2:_(<16 x s8>) = G_ADD %1, %1
@@ -1216,9 +1707,80 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v16s8_to_v2s64
     ; CHECK: [[COPY:%[0-9]+]]:_(<16 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7_vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(<16 x s8>) = G_TRUNC [[COPY]](<16 x s32>)
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s64>) = G_BITCAST [[TRUNC]](<16 x s8>)
-    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<2 x s64>)
+    ; CHECK: [[UV:%[0-9]+]]:_(<8 x s32>), [[UV1:%[0-9]+]]:_(<8 x s32>) = G_UNMERGE_VALUES [[COPY]](<16 x s32>)
+    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32), [[UV8:%[0-9]+]]:_(s32), [[UV9:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV]](<8 x s32>)
+    ; CHECK: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 255
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV2]](s32)
+    ; CHECK: [[AND:%[0-9]+]]:_(s16) = G_AND [[TRUNC]], [[C]]
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[UV3]](s32)
+    ; CHECK: [[AND1:%[0-9]+]]:_(s16) = G_AND [[TRUNC1]], [[C]]
+    ; CHECK: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; CHECK: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[AND1]], [[C1]](s16)
+    ; CHECK: [[OR:%[0-9]+]]:_(s16) = G_OR [[AND]], [[SHL]]
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[UV4]](s32)
+    ; CHECK: [[AND2:%[0-9]+]]:_(s16) = G_AND [[TRUNC2]], [[C]]
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[UV5]](s32)
+    ; CHECK: [[AND3:%[0-9]+]]:_(s16) = G_AND [[TRUNC3]], [[C]]
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[AND3]], [[C1]](s16)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s16) = G_OR [[AND2]], [[SHL1]]
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[UV6]](s32)
+    ; CHECK: [[AND4:%[0-9]+]]:_(s16) = G_AND [[TRUNC4]], [[C]]
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[UV7]](s32)
+    ; CHECK: [[AND5:%[0-9]+]]:_(s16) = G_AND [[TRUNC5]], [[C]]
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s16) = G_SHL [[AND5]], [[C1]](s16)
+    ; CHECK: [[OR2:%[0-9]+]]:_(s16) = G_OR [[AND4]], [[SHL2]]
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[UV8]](s32)
+    ; CHECK: [[AND6:%[0-9]+]]:_(s16) = G_AND [[TRUNC6]], [[C]]
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[UV9]](s32)
+    ; CHECK: [[AND7:%[0-9]+]]:_(s16) = G_AND [[TRUNC7]], [[C]]
+    ; CHECK: [[SHL3:%[0-9]+]]:_(s16) = G_SHL [[AND7]], [[C1]](s16)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s16) = G_OR [[AND6]], [[SHL3]]
+    ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[OR]](s16)
+    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[OR1]](s16)
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[SHL4:%[0-9]+]]:_(s32) = G_SHL [[ZEXT1]], [[C2]](s32)
+    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[ZEXT]], [[SHL4]]
+    ; CHECK: [[ZEXT2:%[0-9]+]]:_(s32) = G_ZEXT [[OR2]](s16)
+    ; CHECK: [[ZEXT3:%[0-9]+]]:_(s32) = G_ZEXT [[OR3]](s16)
+    ; CHECK: [[SHL5:%[0-9]+]]:_(s32) = G_SHL [[ZEXT3]], [[C2]](s32)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s32) = G_OR [[ZEXT2]], [[SHL5]]
+    ; CHECK: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[OR4]](s32), [[OR5]](s32)
+    ; CHECK: [[UV10:%[0-9]+]]:_(s32), [[UV11:%[0-9]+]]:_(s32), [[UV12:%[0-9]+]]:_(s32), [[UV13:%[0-9]+]]:_(s32), [[UV14:%[0-9]+]]:_(s32), [[UV15:%[0-9]+]]:_(s32), [[UV16:%[0-9]+]]:_(s32), [[UV17:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV1]](<8 x s32>)
+    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s16) = G_TRUNC [[UV10]](s32)
+    ; CHECK: [[AND8:%[0-9]+]]:_(s16) = G_AND [[TRUNC8]], [[C]]
+    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s16) = G_TRUNC [[UV11]](s32)
+    ; CHECK: [[AND9:%[0-9]+]]:_(s16) = G_AND [[TRUNC9]], [[C]]
+    ; CHECK: [[SHL6:%[0-9]+]]:_(s16) = G_SHL [[AND9]], [[C1]](s16)
+    ; CHECK: [[OR6:%[0-9]+]]:_(s16) = G_OR [[AND8]], [[SHL6]]
+    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s16) = G_TRUNC [[UV12]](s32)
+    ; CHECK: [[AND10:%[0-9]+]]:_(s16) = G_AND [[TRUNC10]], [[C]]
+    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s16) = G_TRUNC [[UV13]](s32)
+    ; CHECK: [[AND11:%[0-9]+]]:_(s16) = G_AND [[TRUNC11]], [[C]]
+    ; CHECK: [[SHL7:%[0-9]+]]:_(s16) = G_SHL [[AND11]], [[C1]](s16)
+    ; CHECK: [[OR7:%[0-9]+]]:_(s16) = G_OR [[AND10]], [[SHL7]]
+    ; CHECK: [[TRUNC12:%[0-9]+]]:_(s16) = G_TRUNC [[UV14]](s32)
+    ; CHECK: [[AND12:%[0-9]+]]:_(s16) = G_AND [[TRUNC12]], [[C]]
+    ; CHECK: [[TRUNC13:%[0-9]+]]:_(s16) = G_TRUNC [[UV15]](s32)
+    ; CHECK: [[AND13:%[0-9]+]]:_(s16) = G_AND [[TRUNC13]], [[C]]
+    ; CHECK: [[SHL8:%[0-9]+]]:_(s16) = G_SHL [[AND13]], [[C1]](s16)
+    ; CHECK: [[OR8:%[0-9]+]]:_(s16) = G_OR [[AND12]], [[SHL8]]
+    ; CHECK: [[TRUNC14:%[0-9]+]]:_(s16) = G_TRUNC [[UV16]](s32)
+    ; CHECK: [[AND14:%[0-9]+]]:_(s16) = G_AND [[TRUNC14]], [[C]]
+    ; CHECK: [[TRUNC15:%[0-9]+]]:_(s16) = G_TRUNC [[UV17]](s32)
+    ; CHECK: [[AND15:%[0-9]+]]:_(s16) = G_AND [[TRUNC15]], [[C]]
+    ; CHECK: [[SHL9:%[0-9]+]]:_(s16) = G_SHL [[AND15]], [[C1]](s16)
+    ; CHECK: [[OR9:%[0-9]+]]:_(s16) = G_OR [[AND14]], [[SHL9]]
+    ; CHECK: [[ZEXT4:%[0-9]+]]:_(s32) = G_ZEXT [[OR6]](s16)
+    ; CHECK: [[ZEXT5:%[0-9]+]]:_(s32) = G_ZEXT [[OR7]](s16)
+    ; CHECK: [[SHL10:%[0-9]+]]:_(s32) = G_SHL [[ZEXT5]], [[C2]](s32)
+    ; CHECK: [[OR10:%[0-9]+]]:_(s32) = G_OR [[ZEXT4]], [[SHL10]]
+    ; CHECK: [[ZEXT6:%[0-9]+]]:_(s32) = G_ZEXT [[OR8]](s16)
+    ; CHECK: [[ZEXT7:%[0-9]+]]:_(s32) = G_ZEXT [[OR9]](s16)
+    ; CHECK: [[SHL11:%[0-9]+]]:_(s32) = G_SHL [[ZEXT7]], [[C2]](s32)
+    ; CHECK: [[OR11:%[0-9]+]]:_(s32) = G_OR [[ZEXT6]], [[SHL11]]
+    ; CHECK: [[MV1:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[OR10]](s32), [[OR11]](s32)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s64>) = G_BUILD_VECTOR [[MV]](s64), [[MV1]](s64)
+    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<2 x s64>)
     %0:_(<16 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7_vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15
     %1:_(<16 x s8>) = G_TRUNC %0
     %2:_(<2 x s64>) = G_BITCAST %1
@@ -1232,76 +1794,104 @@ body: |
     liveins: $vgpr0_vgpr1_vgpr2_vgpr3
     ; CHECK-LABEL: name: test_bitcast_v4s32_to_v16s8
     ; CHECK: [[COPY:%[0-9]+]]:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[COPY]](<4 x s32>)
-    ; CHECK: [[UV:%[0-9]+]]:_(s8), [[UV1:%[0-9]+]]:_(s8), [[UV2:%[0-9]+]]:_(s8), [[UV3:%[0-9]+]]:_(s8), [[UV4:%[0-9]+]]:_(s8), [[UV5:%[0-9]+]]:_(s8), [[UV6:%[0-9]+]]:_(s8), [[UV7:%[0-9]+]]:_(s8), [[UV8:%[0-9]+]]:_(s8), [[UV9:%[0-9]+]]:_(s8), [[UV10:%[0-9]+]]:_(s8), [[UV11:%[0-9]+]]:_(s8), [[UV12:%[0-9]+]]:_(s8), [[UV13:%[0-9]+]]:_(s8), [[UV14:%[0-9]+]]:_(s8), [[UV15:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[BITCAST]](<16 x s8>)
-    ; CHECK: [[UV16:%[0-9]+]]:_(s8), [[UV17:%[0-9]+]]:_(s8), [[UV18:%[0-9]+]]:_(s8), [[UV19:%[0-9]+]]:_(s8), [[UV20:%[0-9]+]]:_(s8), [[UV21:%[0-9]+]]:_(s8), [[UV22:%[0-9]+]]:_(s8), [[UV23:%[0-9]+]]:_(s8), [[UV24:%[0-9]+]]:_(s8), [[UV25:%[0-9]+]]:_(s8), [[UV26:%[0-9]+]]:_(s8), [[UV27:%[0-9]+]]:_(s8), [[UV28:%[0-9]+]]:_(s8), [[UV29:%[0-9]+]]:_(s8), [[UV30:%[0-9]+]]:_(s8), [[UV31:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[BITCAST]](<16 x s8>)
-    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[UV]](s8)
-    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[UV16]](s8)
-    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT]], [[ANYEXT1]]
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[ADD]](s16)
-    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s16) = G_ANYEXT [[UV1]](s8)
-    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s16) = G_ANYEXT [[UV17]](s8)
-    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT2]], [[ANYEXT3]]
-    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[ADD1]](s16)
-    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s16) = G_ANYEXT [[UV2]](s8)
-    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s16) = G_ANYEXT [[UV18]](s8)
-    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT4]], [[ANYEXT5]]
-    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[ADD2]](s16)
-    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s16) = G_ANYEXT [[UV3]](s8)
-    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s16) = G_ANYEXT [[UV19]](s8)
-    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT6]], [[ANYEXT7]]
-    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[ADD3]](s16)
-    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s16) = G_ANYEXT [[UV4]](s8)
-    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s16) = G_ANYEXT [[UV20]](s8)
-    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT8]], [[ANYEXT9]]
-    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[ADD4]](s16)
-    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s16) = G_ANYEXT [[UV5]](s8)
-    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s16) = G_ANYEXT [[UV21]](s8)
-    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT10]], [[ANYEXT11]]
-    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[ADD5]](s16)
-    ; CHECK: [[ANYEXT12:%[0-9]+]]:_(s16) = G_ANYEXT [[UV6]](s8)
-    ; CHECK: [[ANYEXT13:%[0-9]+]]:_(s16) = G_ANYEXT [[UV22]](s8)
-    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT12]], [[ANYEXT13]]
-    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[ADD6]](s16)
-    ; CHECK: [[ANYEXT14:%[0-9]+]]:_(s16) = G_ANYEXT [[UV7]](s8)
-    ; CHECK: [[ANYEXT15:%[0-9]+]]:_(s16) = G_ANYEXT [[UV23]](s8)
-    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT14]], [[ANYEXT15]]
-    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[ADD7]](s16)
-    ; CHECK: [[ANYEXT16:%[0-9]+]]:_(s16) = G_ANYEXT [[UV8]](s8)
-    ; CHECK: [[ANYEXT17:%[0-9]+]]:_(s16) = G_ANYEXT [[UV24]](s8)
-    ; CHECK: [[ADD8:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT16]], [[ANYEXT17]]
-    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[ADD8]](s16)
-    ; CHECK: [[ANYEXT18:%[0-9]+]]:_(s16) = G_ANYEXT [[UV9]](s8)
-    ; CHECK: [[ANYEXT19:%[0-9]+]]:_(s16) = G_ANYEXT [[UV25]](s8)
-    ; CHECK: [[ADD9:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT18]], [[ANYEXT19]]
-    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[ADD9]](s16)
-    ; CHECK: [[ANYEXT20:%[0-9]+]]:_(s16) = G_ANYEXT [[UV10]](s8)
-    ; CHECK: [[ANYEXT21:%[0-9]+]]:_(s16) = G_ANYEXT [[UV26]](s8)
-    ; CHECK: [[ADD10:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT20]], [[ANYEXT21]]
-    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[ADD10]](s16)
-    ; CHECK: [[ANYEXT22:%[0-9]+]]:_(s16) = G_ANYEXT [[UV11]](s8)
-    ; CHECK: [[ANYEXT23:%[0-9]+]]:_(s16) = G_ANYEXT [[UV27]](s8)
-    ; CHECK: [[ADD11:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT22]], [[ANYEXT23]]
-    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[ADD11]](s16)
-    ; CHECK: [[ANYEXT24:%[0-9]+]]:_(s16) = G_ANYEXT [[UV12]](s8)
-    ; CHECK: [[ANYEXT25:%[0-9]+]]:_(s16) = G_ANYEXT [[UV28]](s8)
-    ; CHECK: [[ADD12:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT24]], [[ANYEXT25]]
-    ; CHECK: [[TRUNC12:%[0-9]+]]:_(s8) = G_TRUNC [[ADD12]](s16)
-    ; CHECK: [[ANYEXT26:%[0-9]+]]:_(s16) = G_ANYEXT [[UV13]](s8)
-    ; CHECK: [[ANYEXT27:%[0-9]+]]:_(s16) = G_ANYEXT [[UV29]](s8)
-    ; CHECK: [[ADD13:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT26]], [[ANYEXT27]]
-    ; CHECK: [[TRUNC13:%[0-9]+]]:_(s8) = G_TRUNC [[ADD13]](s16)
-    ; CHECK: [[ANYEXT28:%[0-9]+]]:_(s16) = G_ANYEXT [[UV14]](s8)
-    ; CHECK: [[ANYEXT29:%[0-9]+]]:_(s16) = G_ANYEXT [[UV30]](s8)
-    ; CHECK: [[ADD14:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT28]], [[ANYEXT29]]
-    ; CHECK: [[TRUNC14:%[0-9]+]]:_(s8) = G_TRUNC [[ADD14]](s16)
-    ; CHECK: [[ANYEXT30:%[0-9]+]]:_(s16) = G_ANYEXT [[UV15]](s8)
-    ; CHECK: [[ANYEXT31:%[0-9]+]]:_(s16) = G_ANYEXT [[UV31]](s8)
-    ; CHECK: [[ADD15:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT30]], [[ANYEXT31]]
-    ; CHECK: [[TRUNC15:%[0-9]+]]:_(s8) = G_TRUNC [[ADD15]](s16)
-    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<16 x s8>) = G_BUILD_VECTOR [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8), [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8), [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8), [[TRUNC12]](s8), [[TRUNC13]](s8), [[TRUNC14]](s8), [[TRUNC15]](s8)
-    ; CHECK: [[ANYEXT32:%[0-9]+]]:_(<16 x s32>) = G_ANYEXT [[BUILD_VECTOR]](<16 x s8>)
-    ; CHECK: S_ENDPGM 0, implicit [[ANYEXT32]](<16 x s32>)
+    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<4 x s32>)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CHECK: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CHECK: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CHECK: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CHECK: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CHECK: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CHECK: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CHECK: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV]](s32)
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[TRUNC]](s16)
+    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[TRUNC]], [[COPY1]]
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s16) = COPY [[TRUNC1]](s16)
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[TRUNC1]], [[COPY2]]
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s16) = COPY [[TRUNC2]](s16)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[TRUNC2]], [[COPY3]]
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR2]](s32)
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s16) = COPY [[TRUNC3]](s16)
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[TRUNC3]], [[COPY4]]
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[UV1]](s32)
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s16) = COPY [[TRUNC4]](s16)
+    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[TRUNC4]], [[COPY5]]
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR3]](s32)
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s16) = COPY [[TRUNC5]](s16)
+    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[TRUNC5]], [[COPY6]]
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR4]](s32)
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s16) = COPY [[TRUNC6]](s16)
+    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[TRUNC6]], [[COPY7]]
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR5]](s32)
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s16) = COPY [[TRUNC7]](s16)
+    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[TRUNC7]], [[COPY8]]
+    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s16) = G_TRUNC [[UV2]](s32)
+    ; CHECK: [[COPY9:%[0-9]+]]:_(s16) = COPY [[TRUNC8]](s16)
+    ; CHECK: [[ADD8:%[0-9]+]]:_(s16) = G_ADD [[TRUNC8]], [[COPY9]]
+    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR6]](s32)
+    ; CHECK: [[COPY10:%[0-9]+]]:_(s16) = COPY [[TRUNC9]](s16)
+    ; CHECK: [[ADD9:%[0-9]+]]:_(s16) = G_ADD [[TRUNC9]], [[COPY10]]
+    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR7]](s32)
+    ; CHECK: [[COPY11:%[0-9]+]]:_(s16) = COPY [[TRUNC10]](s16)
+    ; CHECK: [[ADD10:%[0-9]+]]:_(s16) = G_ADD [[TRUNC10]], [[COPY11]]
+    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR8]](s32)
+    ; CHECK: [[COPY12:%[0-9]+]]:_(s16) = COPY [[TRUNC11]](s16)
+    ; CHECK: [[ADD11:%[0-9]+]]:_(s16) = G_ADD [[TRUNC11]], [[COPY12]]
+    ; CHECK: [[TRUNC12:%[0-9]+]]:_(s16) = G_TRUNC [[UV3]](s32)
+    ; CHECK: [[COPY13:%[0-9]+]]:_(s16) = COPY [[TRUNC12]](s16)
+    ; CHECK: [[ADD12:%[0-9]+]]:_(s16) = G_ADD [[TRUNC12]], [[COPY13]]
+    ; CHECK: [[TRUNC13:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR9]](s32)
+    ; CHECK: [[COPY14:%[0-9]+]]:_(s16) = COPY [[TRUNC13]](s16)
+    ; CHECK: [[ADD13:%[0-9]+]]:_(s16) = G_ADD [[TRUNC13]], [[COPY14]]
+    ; CHECK: [[TRUNC14:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR10]](s32)
+    ; CHECK: [[COPY15:%[0-9]+]]:_(s16) = COPY [[TRUNC14]](s16)
+    ; CHECK: [[ADD14:%[0-9]+]]:_(s16) = G_ADD [[TRUNC14]], [[COPY15]]
+    ; CHECK: [[TRUNC15:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR11]](s32)
+    ; CHECK: [[COPY16:%[0-9]+]]:_(s16) = COPY [[TRUNC15]](s16)
+    ; CHECK: [[ADD15:%[0-9]+]]:_(s16) = G_ADD [[TRUNC15]], [[COPY16]]
+    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD]](s16)
+    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD1]](s16)
+    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD2]](s16)
+    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD3]](s16)
+    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD4]](s16)
+    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD5]](s16)
+    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD6]](s16)
+    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD7]](s16)
+    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD8]](s16)
+    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD9]](s16)
+    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD10]](s16)
+    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD11]](s16)
+    ; CHECK: [[ANYEXT12:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD12]](s16)
+    ; CHECK: [[ANYEXT13:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD13]](s16)
+    ; CHECK: [[ANYEXT14:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD14]](s16)
+    ; CHECK: [[ANYEXT15:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD15]](s16)
+    ; CHECK: [[COPY17:%[0-9]+]]:_(s32) = COPY [[ANYEXT]](s32)
+    ; CHECK: [[COPY18:%[0-9]+]]:_(s32) = COPY [[ANYEXT1]](s32)
+    ; CHECK: [[COPY19:%[0-9]+]]:_(s32) = COPY [[ANYEXT2]](s32)
+    ; CHECK: [[COPY20:%[0-9]+]]:_(s32) = COPY [[ANYEXT3]](s32)
+    ; CHECK: [[COPY21:%[0-9]+]]:_(s32) = COPY [[ANYEXT4]](s32)
+    ; CHECK: [[COPY22:%[0-9]+]]:_(s32) = COPY [[ANYEXT5]](s32)
+    ; CHECK: [[COPY23:%[0-9]+]]:_(s32) = COPY [[ANYEXT6]](s32)
+    ; CHECK: [[COPY24:%[0-9]+]]:_(s32) = COPY [[ANYEXT7]](s32)
+    ; CHECK: [[COPY25:%[0-9]+]]:_(s32) = COPY [[ANYEXT8]](s32)
+    ; CHECK: [[COPY26:%[0-9]+]]:_(s32) = COPY [[ANYEXT9]](s32)
+    ; CHECK: [[COPY27:%[0-9]+]]:_(s32) = COPY [[ANYEXT10]](s32)
+    ; CHECK: [[COPY28:%[0-9]+]]:_(s32) = COPY [[ANYEXT11]](s32)
+    ; CHECK: [[COPY29:%[0-9]+]]:_(s32) = COPY [[ANYEXT12]](s32)
+    ; CHECK: [[COPY30:%[0-9]+]]:_(s32) = COPY [[ANYEXT13]](s32)
+    ; CHECK: [[COPY31:%[0-9]+]]:_(s32) = COPY [[ANYEXT14]](s32)
+    ; CHECK: [[COPY32:%[0-9]+]]:_(s32) = COPY [[ANYEXT15]](s32)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<16 x s32>) = G_BUILD_VECTOR [[COPY17]](s32), [[COPY18]](s32), [[COPY19]](s32), [[COPY20]](s32), [[COPY21]](s32), [[COPY22]](s32), [[COPY23]](s32), [[COPY24]](s32), [[COPY25]](s32), [[COPY26]](s32), [[COPY27]](s32), [[COPY28]](s32), [[COPY29]](s32), [[COPY30]](s32), [[COPY31]](s32), [[COPY32]](s32)
+    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<16 x s32>)
     %0:_(<4 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
     %1:_(<16 x s8>) = G_BITCAST %0
     %2:_(<16 x s8>) = G_ADD %1, %1
@@ -1317,9 +1907,73 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v16s8_to_v4s32
     ; CHECK: [[COPY:%[0-9]+]]:_(<16 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7_vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(<16 x s8>) = G_TRUNC [[COPY]](<16 x s32>)
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<4 x s32>) = G_BITCAST [[TRUNC]](<16 x s8>)
-    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<4 x s32>)
+    ; CHECK: [[UV:%[0-9]+]]:_(<4 x s32>), [[UV1:%[0-9]+]]:_(<4 x s32>), [[UV2:%[0-9]+]]:_(<4 x s32>), [[UV3:%[0-9]+]]:_(<4 x s32>) = G_UNMERGE_VALUES [[COPY]](<16 x s32>)
+    ; CHECK: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV]](<4 x s32>)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 255
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[COPY1]], [[C]]
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[COPY2]], [[C]]
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND1]], [[C1]](s32)
+    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND]], [[SHL]]
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[COPY3]], [[C]]
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[AND2]], [[C2]](s32)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[OR]], [[SHL1]]
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[COPY4]], [[C]]
+    ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s32) = G_SHL [[AND3]], [[C3]](s32)
+    ; CHECK: [[OR2:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[SHL2]]
+    ; CHECK: [[UV8:%[0-9]+]]:_(s32), [[UV9:%[0-9]+]]:_(s32), [[UV10:%[0-9]+]]:_(s32), [[UV11:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV1]](<4 x s32>)
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV8]](s32)
+    ; CHECK: [[AND4:%[0-9]+]]:_(s32) = G_AND [[COPY5]], [[C]]
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s32) = COPY [[UV9]](s32)
+    ; CHECK: [[AND5:%[0-9]+]]:_(s32) = G_AND [[COPY6]], [[C]]
+    ; CHECK: [[SHL3:%[0-9]+]]:_(s32) = G_SHL [[AND5]], [[C1]](s32)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s32) = G_OR [[AND4]], [[SHL3]]
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s32) = COPY [[UV10]](s32)
+    ; CHECK: [[AND6:%[0-9]+]]:_(s32) = G_AND [[COPY7]], [[C]]
+    ; CHECK: [[SHL4:%[0-9]+]]:_(s32) = G_SHL [[AND6]], [[C2]](s32)
+    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[OR3]], [[SHL4]]
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s32) = COPY [[UV11]](s32)
+    ; CHECK: [[AND7:%[0-9]+]]:_(s32) = G_AND [[COPY8]], [[C]]
+    ; CHECK: [[SHL5:%[0-9]+]]:_(s32) = G_SHL [[AND7]], [[C3]](s32)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s32) = G_OR [[OR4]], [[SHL5]]
+    ; CHECK: [[UV12:%[0-9]+]]:_(s32), [[UV13:%[0-9]+]]:_(s32), [[UV14:%[0-9]+]]:_(s32), [[UV15:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV2]](<4 x s32>)
+    ; CHECK: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV12]](s32)
+    ; CHECK: [[AND8:%[0-9]+]]:_(s32) = G_AND [[COPY9]], [[C]]
+    ; CHECK: [[COPY10:%[0-9]+]]:_(s32) = COPY [[UV13]](s32)
+    ; CHECK: [[AND9:%[0-9]+]]:_(s32) = G_AND [[COPY10]], [[C]]
+    ; CHECK: [[SHL6:%[0-9]+]]:_(s32) = G_SHL [[AND9]], [[C1]](s32)
+    ; CHECK: [[OR6:%[0-9]+]]:_(s32) = G_OR [[AND8]], [[SHL6]]
+    ; CHECK: [[COPY11:%[0-9]+]]:_(s32) = COPY [[UV14]](s32)
+    ; CHECK: [[AND10:%[0-9]+]]:_(s32) = G_AND [[COPY11]], [[C]]
+    ; CHECK: [[SHL7:%[0-9]+]]:_(s32) = G_SHL [[AND10]], [[C2]](s32)
+    ; CHECK: [[OR7:%[0-9]+]]:_(s32) = G_OR [[OR6]], [[SHL7]]
+    ; CHECK: [[COPY12:%[0-9]+]]:_(s32) = COPY [[UV15]](s32)
+    ; CHECK: [[AND11:%[0-9]+]]:_(s32) = G_AND [[COPY12]], [[C]]
+    ; CHECK: [[SHL8:%[0-9]+]]:_(s32) = G_SHL [[AND11]], [[C3]](s32)
+    ; CHECK: [[OR8:%[0-9]+]]:_(s32) = G_OR [[OR7]], [[SHL8]]
+    ; CHECK: [[UV16:%[0-9]+]]:_(s32), [[UV17:%[0-9]+]]:_(s32), [[UV18:%[0-9]+]]:_(s32), [[UV19:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV3]](<4 x s32>)
+    ; CHECK: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV16]](s32)
+    ; CHECK: [[AND12:%[0-9]+]]:_(s32) = G_AND [[COPY13]], [[C]]
+    ; CHECK: [[COPY14:%[0-9]+]]:_(s32) = COPY [[UV17]](s32)
+    ; CHECK: [[AND13:%[0-9]+]]:_(s32) = G_AND [[COPY14]], [[C]]
+    ; CHECK: [[SHL9:%[0-9]+]]:_(s32) = G_SHL [[AND13]], [[C1]](s32)
+    ; CHECK: [[OR9:%[0-9]+]]:_(s32) = G_OR [[AND12]], [[SHL9]]
+    ; CHECK: [[COPY15:%[0-9]+]]:_(s32) = COPY [[UV18]](s32)
+    ; CHECK: [[AND14:%[0-9]+]]:_(s32) = G_AND [[COPY15]], [[C]]
+    ; CHECK: [[SHL10:%[0-9]+]]:_(s32) = G_SHL [[AND14]], [[C2]](s32)
+    ; CHECK: [[OR10:%[0-9]+]]:_(s32) = G_OR [[OR9]], [[SHL10]]
+    ; CHECK: [[COPY16:%[0-9]+]]:_(s32) = COPY [[UV19]](s32)
+    ; CHECK: [[AND15:%[0-9]+]]:_(s32) = G_AND [[COPY16]], [[C]]
+    ; CHECK: [[SHL11:%[0-9]+]]:_(s32) = G_SHL [[AND15]], [[C3]](s32)
+    ; CHECK: [[OR11:%[0-9]+]]:_(s32) = G_OR [[OR10]], [[SHL11]]
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[OR2]](s32), [[OR5]](s32), [[OR8]](s32), [[OR11]](s32)
+    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<4 x s32>)
     %0:_(<16 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7_vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15
     %1:_(<16 x s8>) = G_TRUNC %0
     %2:_(<4 x s32>) = G_BITCAST %1
@@ -1334,76 +1988,115 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v8s16_to_v16s8
     ; CHECK: [[COPY:%[0-9]+]]:_(<8 x s16>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[COPY]](<8 x s16>)
-    ; CHECK: [[UV:%[0-9]+]]:_(s8), [[UV1:%[0-9]+]]:_(s8), [[UV2:%[0-9]+]]:_(s8), [[UV3:%[0-9]+]]:_(s8), [[UV4:%[0-9]+]]:_(s8), [[UV5:%[0-9]+]]:_(s8), [[UV6:%[0-9]+]]:_(s8), [[UV7:%[0-9]+]]:_(s8), [[UV8:%[0-9]+]]:_(s8), [[UV9:%[0-9]+]]:_(s8), [[UV10:%[0-9]+]]:_(s8), [[UV11:%[0-9]+]]:_(s8), [[UV12:%[0-9]+]]:_(s8), [[UV13:%[0-9]+]]:_(s8), [[UV14:%[0-9]+]]:_(s8), [[UV15:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[BITCAST]](<16 x s8>)
-    ; CHECK: [[UV16:%[0-9]+]]:_(s8), [[UV17:%[0-9]+]]:_(s8), [[UV18:%[0-9]+]]:_(s8), [[UV19:%[0-9]+]]:_(s8), [[UV20:%[0-9]+]]:_(s8), [[UV21:%[0-9]+]]:_(s8), [[UV22:%[0-9]+]]:_(s8), [[UV23:%[0-9]+]]:_(s8), [[UV24:%[0-9]+]]:_(s8), [[UV25:%[0-9]+]]:_(s8), [[UV26:%[0-9]+]]:_(s8), [[UV27:%[0-9]+]]:_(s8), [[UV28:%[0-9]+]]:_(s8), [[UV29:%[0-9]+]]:_(s8), [[UV30:%[0-9]+]]:_(s8), [[UV31:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[BITCAST]](<16 x s8>)
-    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[UV]](s8)
-    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[UV16]](s8)
-    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT]], [[ANYEXT1]]
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[ADD]](s16)
-    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s16) = G_ANYEXT [[UV1]](s8)
-    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s16) = G_ANYEXT [[UV17]](s8)
-    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT2]], [[ANYEXT3]]
-    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[ADD1]](s16)
-    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s16) = G_ANYEXT [[UV2]](s8)
-    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s16) = G_ANYEXT [[UV18]](s8)
-    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT4]], [[ANYEXT5]]
-    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[ADD2]](s16)
-    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s16) = G_ANYEXT [[UV3]](s8)
-    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s16) = G_ANYEXT [[UV19]](s8)
-    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT6]], [[ANYEXT7]]
-    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[ADD3]](s16)
-    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s16) = G_ANYEXT [[UV4]](s8)
-    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s16) = G_ANYEXT [[UV20]](s8)
-    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT8]], [[ANYEXT9]]
-    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[ADD4]](s16)
-    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s16) = G_ANYEXT [[UV5]](s8)
-    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s16) = G_ANYEXT [[UV21]](s8)
-    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT10]], [[ANYEXT11]]
-    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[ADD5]](s16)
-    ; CHECK: [[ANYEXT12:%[0-9]+]]:_(s16) = G_ANYEXT [[UV6]](s8)
-    ; CHECK: [[ANYEXT13:%[0-9]+]]:_(s16) = G_ANYEXT [[UV22]](s8)
-    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT12]], [[ANYEXT13]]
-    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[ADD6]](s16)
-    ; CHECK: [[ANYEXT14:%[0-9]+]]:_(s16) = G_ANYEXT [[UV7]](s8)
-    ; CHECK: [[ANYEXT15:%[0-9]+]]:_(s16) = G_ANYEXT [[UV23]](s8)
-    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT14]], [[ANYEXT15]]
-    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[ADD7]](s16)
-    ; CHECK: [[ANYEXT16:%[0-9]+]]:_(s16) = G_ANYEXT [[UV8]](s8)
-    ; CHECK: [[ANYEXT17:%[0-9]+]]:_(s16) = G_ANYEXT [[UV24]](s8)
-    ; CHECK: [[ADD8:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT16]], [[ANYEXT17]]
-    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[ADD8]](s16)
-    ; CHECK: [[ANYEXT18:%[0-9]+]]:_(s16) = G_ANYEXT [[UV9]](s8)
-    ; CHECK: [[ANYEXT19:%[0-9]+]]:_(s16) = G_ANYEXT [[UV25]](s8)
-    ; CHECK: [[ADD9:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT18]], [[ANYEXT19]]
-    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[ADD9]](s16)
-    ; CHECK: [[ANYEXT20:%[0-9]+]]:_(s16) = G_ANYEXT [[UV10]](s8)
-    ; CHECK: [[ANYEXT21:%[0-9]+]]:_(s16) = G_ANYEXT [[UV26]](s8)
-    ; CHECK: [[ADD10:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT20]], [[ANYEXT21]]
-    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[ADD10]](s16)
-    ; CHECK: [[ANYEXT22:%[0-9]+]]:_(s16) = G_ANYEXT [[UV11]](s8)
-    ; CHECK: [[ANYEXT23:%[0-9]+]]:_(s16) = G_ANYEXT [[UV27]](s8)
-    ; CHECK: [[ADD11:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT22]], [[ANYEXT23]]
-    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[ADD11]](s16)
-    ; CHECK: [[ANYEXT24:%[0-9]+]]:_(s16) = G_ANYEXT [[UV12]](s8)
-    ; CHECK: [[ANYEXT25:%[0-9]+]]:_(s16) = G_ANYEXT [[UV28]](s8)
-    ; CHECK: [[ADD12:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT24]], [[ANYEXT25]]
-    ; CHECK: [[TRUNC12:%[0-9]+]]:_(s8) = G_TRUNC [[ADD12]](s16)
-    ; CHECK: [[ANYEXT26:%[0-9]+]]:_(s16) = G_ANYEXT [[UV13]](s8)
-    ; CHECK: [[ANYEXT27:%[0-9]+]]:_(s16) = G_ANYEXT [[UV29]](s8)
-    ; CHECK: [[ADD13:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT26]], [[ANYEXT27]]
-    ; CHECK: [[TRUNC13:%[0-9]+]]:_(s8) = G_TRUNC [[ADD13]](s16)
-    ; CHECK: [[ANYEXT28:%[0-9]+]]:_(s16) = G_ANYEXT [[UV14]](s8)
-    ; CHECK: [[ANYEXT29:%[0-9]+]]:_(s16) = G_ANYEXT [[UV30]](s8)
-    ; CHECK: [[ADD14:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT28]], [[ANYEXT29]]
-    ; CHECK: [[TRUNC14:%[0-9]+]]:_(s8) = G_TRUNC [[ADD14]](s16)
-    ; CHECK: [[ANYEXT30:%[0-9]+]]:_(s16) = G_ANYEXT [[UV15]](s8)
-    ; CHECK: [[ANYEXT31:%[0-9]+]]:_(s16) = G_ANYEXT [[UV31]](s8)
-    ; CHECK: [[ADD15:%[0-9]+]]:_(s16) = G_ADD [[ANYEXT30]], [[ANYEXT31]]
-    ; CHECK: [[TRUNC15:%[0-9]+]]:_(s8) = G_TRUNC [[ADD15]](s16)
-    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<16 x s8>) = G_BUILD_VECTOR [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8), [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8), [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8), [[TRUNC12]](s8), [[TRUNC13]](s8), [[TRUNC14]](s8), [[TRUNC15]](s8)
-    ; CHECK: [[ANYEXT32:%[0-9]+]]:_(<16 x s32>) = G_ANYEXT [[BUILD_VECTOR]](<16 x s8>)
-    ; CHECK: S_ENDPGM 0, implicit [[ANYEXT32]](<16 x s32>)
+    ; CHECK: [[UV:%[0-9]+]]:_(<2 x s16>), [[UV1:%[0-9]+]]:_(<2 x s16>), [[UV2:%[0-9]+]]:_(<2 x s16>), [[UV3:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<8 x s16>)
+    ; CHECK: [[BITCAST:%[0-9]+]]:_(s32) = G_BITCAST [[UV]](<2 x s16>)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST]](s32)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST]], [[C]](s32)
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
+    ; CHECK: [[BITCAST1:%[0-9]+]]:_(s32) = G_BITCAST [[UV1]](<2 x s16>)
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST1]](s32)
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST1]], [[C]](s32)
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
+    ; CHECK: [[BITCAST2:%[0-9]+]]:_(s32) = G_BITCAST [[UV2]](<2 x s16>)
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST2]](s32)
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST2]], [[C]](s32)
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR2]](s32)
+    ; CHECK: [[BITCAST3:%[0-9]+]]:_(s32) = G_BITCAST [[UV3]](<2 x s16>)
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[BITCAST3]](s32)
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[BITCAST3]], [[C]](s32)
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR3]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC]], [[C1]](s16)
+    ; CHECK: [[LSHR5:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC1]], [[C1]](s16)
+    ; CHECK: [[LSHR6:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC2]], [[C1]](s16)
+    ; CHECK: [[LSHR7:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC3]], [[C1]](s16)
+    ; CHECK: [[LSHR8:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC4]], [[C1]](s16)
+    ; CHECK: [[LSHR9:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC5]], [[C1]](s16)
+    ; CHECK: [[LSHR10:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC6]], [[C1]](s16)
+    ; CHECK: [[LSHR11:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC7]], [[C1]](s16)
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s16) = COPY [[TRUNC]](s16)
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s16) = COPY [[TRUNC]](s16)
+    ; CHECK: [[ADD:%[0-9]+]]:_(s16) = G_ADD [[COPY1]], [[COPY2]]
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s16) = COPY [[LSHR4]](s16)
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s16) = COPY [[LSHR4]](s16)
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s16) = G_ADD [[COPY3]], [[COPY4]]
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s16) = COPY [[TRUNC1]](s16)
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s16) = COPY [[TRUNC1]](s16)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s16) = G_ADD [[COPY5]], [[COPY6]]
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s16) = COPY [[LSHR5]](s16)
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s16) = COPY [[LSHR5]](s16)
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s16) = G_ADD [[COPY7]], [[COPY8]]
+    ; CHECK: [[COPY9:%[0-9]+]]:_(s16) = COPY [[TRUNC2]](s16)
+    ; CHECK: [[COPY10:%[0-9]+]]:_(s16) = COPY [[TRUNC2]](s16)
+    ; CHECK: [[ADD4:%[0-9]+]]:_(s16) = G_ADD [[COPY9]], [[COPY10]]
+    ; CHECK: [[COPY11:%[0-9]+]]:_(s16) = COPY [[LSHR6]](s16)
+    ; CHECK: [[COPY12:%[0-9]+]]:_(s16) = COPY [[LSHR6]](s16)
+    ; CHECK: [[ADD5:%[0-9]+]]:_(s16) = G_ADD [[COPY11]], [[COPY12]]
+    ; CHECK: [[COPY13:%[0-9]+]]:_(s16) = COPY [[TRUNC3]](s16)
+    ; CHECK: [[COPY14:%[0-9]+]]:_(s16) = COPY [[TRUNC3]](s16)
+    ; CHECK: [[ADD6:%[0-9]+]]:_(s16) = G_ADD [[COPY13]], [[COPY14]]
+    ; CHECK: [[COPY15:%[0-9]+]]:_(s16) = COPY [[LSHR7]](s16)
+    ; CHECK: [[COPY16:%[0-9]+]]:_(s16) = COPY [[LSHR7]](s16)
+    ; CHECK: [[ADD7:%[0-9]+]]:_(s16) = G_ADD [[COPY15]], [[COPY16]]
+    ; CHECK: [[COPY17:%[0-9]+]]:_(s16) = COPY [[TRUNC4]](s16)
+    ; CHECK: [[COPY18:%[0-9]+]]:_(s16) = COPY [[TRUNC4]](s16)
+    ; CHECK: [[ADD8:%[0-9]+]]:_(s16) = G_ADD [[COPY17]], [[COPY18]]
+    ; CHECK: [[COPY19:%[0-9]+]]:_(s16) = COPY [[LSHR8]](s16)
+    ; CHECK: [[COPY20:%[0-9]+]]:_(s16) = COPY [[LSHR8]](s16)
+    ; CHECK: [[ADD9:%[0-9]+]]:_(s16) = G_ADD [[COPY19]], [[COPY20]]
+    ; CHECK: [[COPY21:%[0-9]+]]:_(s16) = COPY [[TRUNC5]](s16)
+    ; CHECK: [[COPY22:%[0-9]+]]:_(s16) = COPY [[TRUNC5]](s16)
+    ; CHECK: [[ADD10:%[0-9]+]]:_(s16) = G_ADD [[COPY21]], [[COPY22]]
+    ; CHECK: [[COPY23:%[0-9]+]]:_(s16) = COPY [[LSHR9]](s16)
+    ; CHECK: [[COPY24:%[0-9]+]]:_(s16) = COPY [[LSHR9]](s16)
+    ; CHECK: [[ADD11:%[0-9]+]]:_(s16) = G_ADD [[COPY23]], [[COPY24]]
+    ; CHECK: [[COPY25:%[0-9]+]]:_(s16) = COPY [[TRUNC6]](s16)
+    ; CHECK: [[COPY26:%[0-9]+]]:_(s16) = COPY [[TRUNC6]](s16)
+    ; CHECK: [[ADD12:%[0-9]+]]:_(s16) = G_ADD [[COPY25]], [[COPY26]]
+    ; CHECK: [[COPY27:%[0-9]+]]:_(s16) = COPY [[LSHR10]](s16)
+    ; CHECK: [[COPY28:%[0-9]+]]:_(s16) = COPY [[LSHR10]](s16)
+    ; CHECK: [[ADD13:%[0-9]+]]:_(s16) = G_ADD [[COPY27]], [[COPY28]]
+    ; CHECK: [[COPY29:%[0-9]+]]:_(s16) = COPY [[TRUNC7]](s16)
+    ; CHECK: [[COPY30:%[0-9]+]]:_(s16) = COPY [[TRUNC7]](s16)
+    ; CHECK: [[ADD14:%[0-9]+]]:_(s16) = G_ADD [[COPY29]], [[COPY30]]
+    ; CHECK: [[COPY31:%[0-9]+]]:_(s16) = COPY [[LSHR11]](s16)
+    ; CHECK: [[COPY32:%[0-9]+]]:_(s16) = COPY [[LSHR11]](s16)
+    ; CHECK: [[ADD15:%[0-9]+]]:_(s16) = G_ADD [[COPY31]], [[COPY32]]
+    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD]](s16)
+    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD1]](s16)
+    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD2]](s16)
+    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD3]](s16)
+    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD4]](s16)
+    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD5]](s16)
+    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD6]](s16)
+    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD7]](s16)
+    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD8]](s16)
+    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD9]](s16)
+    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD10]](s16)
+    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD11]](s16)
+    ; CHECK: [[ANYEXT12:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD12]](s16)
+    ; CHECK: [[ANYEXT13:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD13]](s16)
+    ; CHECK: [[ANYEXT14:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD14]](s16)
+    ; CHECK: [[ANYEXT15:%[0-9]+]]:_(s32) = G_ANYEXT [[ADD15]](s16)
+    ; CHECK: [[COPY33:%[0-9]+]]:_(s32) = COPY [[ANYEXT]](s32)
+    ; CHECK: [[COPY34:%[0-9]+]]:_(s32) = COPY [[ANYEXT1]](s32)
+    ; CHECK: [[COPY35:%[0-9]+]]:_(s32) = COPY [[ANYEXT2]](s32)
+    ; CHECK: [[COPY36:%[0-9]+]]:_(s32) = COPY [[ANYEXT3]](s32)
+    ; CHECK: [[COPY37:%[0-9]+]]:_(s32) = COPY [[ANYEXT4]](s32)
+    ; CHECK: [[COPY38:%[0-9]+]]:_(s32) = COPY [[ANYEXT5]](s32)
+    ; CHECK: [[COPY39:%[0-9]+]]:_(s32) = COPY [[ANYEXT6]](s32)
+    ; CHECK: [[COPY40:%[0-9]+]]:_(s32) = COPY [[ANYEXT7]](s32)
+    ; CHECK: [[COPY41:%[0-9]+]]:_(s32) = COPY [[ANYEXT8]](s32)
+    ; CHECK: [[COPY42:%[0-9]+]]:_(s32) = COPY [[ANYEXT9]](s32)
+    ; CHECK: [[COPY43:%[0-9]+]]:_(s32) = COPY [[ANYEXT10]](s32)
+    ; CHECK: [[COPY44:%[0-9]+]]:_(s32) = COPY [[ANYEXT11]](s32)
+    ; CHECK: [[COPY45:%[0-9]+]]:_(s32) = COPY [[ANYEXT12]](s32)
+    ; CHECK: [[COPY46:%[0-9]+]]:_(s32) = COPY [[ANYEXT13]](s32)
+    ; CHECK: [[COPY47:%[0-9]+]]:_(s32) = COPY [[ANYEXT14]](s32)
+    ; CHECK: [[COPY48:%[0-9]+]]:_(s32) = COPY [[ANYEXT15]](s32)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<16 x s32>) = G_BUILD_VECTOR [[COPY33]](s32), [[COPY34]](s32), [[COPY35]](s32), [[COPY36]](s32), [[COPY37]](s32), [[COPY38]](s32), [[COPY39]](s32), [[COPY40]](s32), [[COPY41]](s32), [[COPY42]](s32), [[COPY43]](s32), [[COPY44]](s32), [[COPY45]](s32), [[COPY46]](s32), [[COPY47]](s32), [[COPY48]](s32)
+    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<16 x s32>)
     %0:_(<8 x s16>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
     %1:_(<16 x s8>) = G_BITCAST %0
     %2:_(<16 x s8>) = G_ADD %1, %1
@@ -1419,9 +2112,88 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v16s8_to_v8s16
     ; CHECK: [[COPY:%[0-9]+]]:_(<16 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7_vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15
-    ; CHECK: [[TRUNC:%[0-9]+]]:_(<16 x s8>) = G_TRUNC [[COPY]](<16 x s32>)
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<8 x s16>) = G_BITCAST [[TRUNC]](<16 x s8>)
-    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<8 x s16>)
+    ; CHECK: [[UV:%[0-9]+]]:_(<2 x s32>), [[UV1:%[0-9]+]]:_(<2 x s32>), [[UV2:%[0-9]+]]:_(<2 x s32>), [[UV3:%[0-9]+]]:_(<2 x s32>), [[UV4:%[0-9]+]]:_(<2 x s32>), [[UV5:%[0-9]+]]:_(<2 x s32>), [[UV6:%[0-9]+]]:_(<2 x s32>), [[UV7:%[0-9]+]]:_(<2 x s32>) = G_UNMERGE_VALUES [[COPY]](<16 x s32>)
+    ; CHECK: [[UV8:%[0-9]+]]:_(s32), [[UV9:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV]](<2 x s32>)
+    ; CHECK: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 255
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV8]](s32)
+    ; CHECK: [[AND:%[0-9]+]]:_(s16) = G_AND [[TRUNC]], [[C]]
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[UV9]](s32)
+    ; CHECK: [[AND1:%[0-9]+]]:_(s16) = G_AND [[TRUNC1]], [[C]]
+    ; CHECK: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; CHECK: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[AND1]], [[C1]](s16)
+    ; CHECK: [[OR:%[0-9]+]]:_(s16) = G_OR [[AND]], [[SHL]]
+    ; CHECK: [[UV10:%[0-9]+]]:_(s32), [[UV11:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV1]](<2 x s32>)
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[UV10]](s32)
+    ; CHECK: [[AND2:%[0-9]+]]:_(s16) = G_AND [[TRUNC2]], [[C]]
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[UV11]](s32)
+    ; CHECK: [[AND3:%[0-9]+]]:_(s16) = G_AND [[TRUNC3]], [[C]]
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[AND3]], [[C1]](s16)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s16) = G_OR [[AND2]], [[SHL1]]
+    ; CHECK: [[UV12:%[0-9]+]]:_(s32), [[UV13:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV2]](<2 x s32>)
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(s16) = G_TRUNC [[UV12]](s32)
+    ; CHECK: [[AND4:%[0-9]+]]:_(s16) = G_AND [[TRUNC4]], [[C]]
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[UV13]](s32)
+    ; CHECK: [[AND5:%[0-9]+]]:_(s16) = G_AND [[TRUNC5]], [[C]]
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s16) = G_SHL [[AND5]], [[C1]](s16)
+    ; CHECK: [[OR2:%[0-9]+]]:_(s16) = G_OR [[AND4]], [[SHL2]]
+    ; CHECK: [[UV14:%[0-9]+]]:_(s32), [[UV15:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV3]](<2 x s32>)
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[UV14]](s32)
+    ; CHECK: [[AND6:%[0-9]+]]:_(s16) = G_AND [[TRUNC6]], [[C]]
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[UV15]](s32)
+    ; CHECK: [[AND7:%[0-9]+]]:_(s16) = G_AND [[TRUNC7]], [[C]]
+    ; CHECK: [[SHL3:%[0-9]+]]:_(s16) = G_SHL [[AND7]], [[C1]](s16)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s16) = G_OR [[AND6]], [[SHL3]]
+    ; CHECK: [[UV16:%[0-9]+]]:_(s32), [[UV17:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV4]](<2 x s32>)
+    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s16) = G_TRUNC [[UV16]](s32)
+    ; CHECK: [[AND8:%[0-9]+]]:_(s16) = G_AND [[TRUNC8]], [[C]]
+    ; CHECK: [[TRUNC9:%[0-9]+]]:_(s16) = G_TRUNC [[UV17]](s32)
+    ; CHECK: [[AND9:%[0-9]+]]:_(s16) = G_AND [[TRUNC9]], [[C]]
+    ; CHECK: [[SHL4:%[0-9]+]]:_(s16) = G_SHL [[AND9]], [[C1]](s16)
+    ; CHECK: [[OR4:%[0-9]+]]:_(s16) = G_OR [[AND8]], [[SHL4]]
+    ; CHECK: [[UV18:%[0-9]+]]:_(s32), [[UV19:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV5]](<2 x s32>)
+    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s16) = G_TRUNC [[UV18]](s32)
+    ; CHECK: [[AND10:%[0-9]+]]:_(s16) = G_AND [[TRUNC10]], [[C]]
+    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s16) = G_TRUNC [[UV19]](s32)
+    ; CHECK: [[AND11:%[0-9]+]]:_(s16) = G_AND [[TRUNC11]], [[C]]
+    ; CHECK: [[SHL5:%[0-9]+]]:_(s16) = G_SHL [[AND11]], [[C1]](s16)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s16) = G_OR [[AND10]], [[SHL5]]
+    ; CHECK: [[UV20:%[0-9]+]]:_(s32), [[UV21:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV6]](<2 x s32>)
+    ; CHECK: [[TRUNC12:%[0-9]+]]:_(s16) = G_TRUNC [[UV20]](s32)
+    ; CHECK: [[AND12:%[0-9]+]]:_(s16) = G_AND [[TRUNC12]], [[C]]
+    ; CHECK: [[TRUNC13:%[0-9]+]]:_(s16) = G_TRUNC [[UV21]](s32)
+    ; CHECK: [[AND13:%[0-9]+]]:_(s16) = G_AND [[TRUNC13]], [[C]]
+    ; CHECK: [[SHL6:%[0-9]+]]:_(s16) = G_SHL [[AND13]], [[C1]](s16)
+    ; CHECK: [[OR6:%[0-9]+]]:_(s16) = G_OR [[AND12]], [[SHL6]]
+    ; CHECK: [[UV22:%[0-9]+]]:_(s32), [[UV23:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV7]](<2 x s32>)
+    ; CHECK: [[TRUNC14:%[0-9]+]]:_(s16) = G_TRUNC [[UV22]](s32)
+    ; CHECK: [[AND14:%[0-9]+]]:_(s16) = G_AND [[TRUNC14]], [[C]]
+    ; CHECK: [[TRUNC15:%[0-9]+]]:_(s16) = G_TRUNC [[UV23]](s32)
+    ; CHECK: [[AND15:%[0-9]+]]:_(s16) = G_AND [[TRUNC15]], [[C]]
+    ; CHECK: [[SHL7:%[0-9]+]]:_(s16) = G_SHL [[AND15]], [[C1]](s16)
+    ; CHECK: [[OR7:%[0-9]+]]:_(s16) = G_OR [[AND14]], [[SHL7]]
+    ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[OR]](s16)
+    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[OR1]](s16)
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[SHL8:%[0-9]+]]:_(s32) = G_SHL [[ZEXT1]], [[C2]](s32)
+    ; CHECK: [[OR8:%[0-9]+]]:_(s32) = G_OR [[ZEXT]], [[SHL8]]
+    ; CHECK: [[BITCAST:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR8]](s32)
+    ; CHECK: [[ZEXT2:%[0-9]+]]:_(s32) = G_ZEXT [[OR2]](s16)
+    ; CHECK: [[ZEXT3:%[0-9]+]]:_(s32) = G_ZEXT [[OR3]](s16)
+    ; CHECK: [[SHL9:%[0-9]+]]:_(s32) = G_SHL [[ZEXT3]], [[C2]](s32)
+    ; CHECK: [[OR9:%[0-9]+]]:_(s32) = G_OR [[ZEXT2]], [[SHL9]]
+    ; CHECK: [[BITCAST1:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR9]](s32)
+    ; CHECK: [[ZEXT4:%[0-9]+]]:_(s32) = G_ZEXT [[OR4]](s16)
+    ; CHECK: [[ZEXT5:%[0-9]+]]:_(s32) = G_ZEXT [[OR5]](s16)
+    ; CHECK: [[SHL10:%[0-9]+]]:_(s32) = G_SHL [[ZEXT5]], [[C2]](s32)
+    ; CHECK: [[OR10:%[0-9]+]]:_(s32) = G_OR [[ZEXT4]], [[SHL10]]
+    ; CHECK: [[BITCAST2:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR10]](s32)
+    ; CHECK: [[ZEXT6:%[0-9]+]]:_(s32) = G_ZEXT [[OR6]](s16)
+    ; CHECK: [[ZEXT7:%[0-9]+]]:_(s32) = G_ZEXT [[OR7]](s16)
+    ; CHECK: [[SHL11:%[0-9]+]]:_(s32) = G_SHL [[ZEXT7]], [[C2]](s32)
+    ; CHECK: [[OR11:%[0-9]+]]:_(s32) = G_OR [[ZEXT6]], [[SHL11]]
+    ; CHECK: [[BITCAST3:%[0-9]+]]:_(<2 x s16>) = G_BITCAST [[OR11]](s32)
+    ; CHECK: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s16>) = G_CONCAT_VECTORS [[BITCAST]](<2 x s16>), [[BITCAST1]](<2 x s16>), [[BITCAST2]](<2 x s16>), [[BITCAST3]](<2 x s16>)
+    ; CHECK: S_ENDPGM 0, implicit [[CONCAT_VECTORS]](<8 x s16>)
     %0:_(<16 x s32>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7_vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15
     %1:_(<16 x s8>) = G_TRUNC %0
     %2:_(<8 x s16>) = G_BITCAST %1
@@ -1496,8 +2268,74 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v3s64_to_v24s8
     ; CHECK: [[COPY:%[0-9]+]]:_(<3 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<24 x s8>) = G_BITCAST [[COPY]](<3 x s64>)
-    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<24 x s8>)
+    ; CHECK: [[UV:%[0-9]+]]:_(s64), [[UV1:%[0-9]+]]:_(s64), [[UV2:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY]](<3 x s64>)
+    ; CHECK: [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV]](s64)
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[UV3]](s32)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
+    ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[UV4]](s32)
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; CHECK: [[TRUNC3:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR1]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC]], [[C1]](s16)
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC1]], [[C1]](s16)
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC2]], [[C1]](s16)
+    ; CHECK: [[LSHR5:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC3]], [[C1]](s16)
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CHECK: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR2]](s16)
+    ; CHECK: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CHECK: [[ANYEXT1:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR3]](s16)
+    ; CHECK: [[COPY3:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; CHECK: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR4]](s16)
+    ; CHECK: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CHECK: [[ANYEXT3:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR5]](s16)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<8 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[ANYEXT]](s32), [[COPY2]](s32), [[ANYEXT1]](s32), [[COPY3]](s32), [[ANYEXT2]](s32), [[COPY4]](s32), [[ANYEXT3]](s32)
+    ; CHECK: [[TRUNC4:%[0-9]+]]:_(<8 x s8>) = G_TRUNC [[BUILD_VECTOR]](<8 x s32>)
+    ; CHECK: [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV1]](s64)
+    ; CHECK: [[TRUNC5:%[0-9]+]]:_(s16) = G_TRUNC [[UV5]](s32)
+    ; CHECK: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; CHECK: [[TRUNC6:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR6]](s32)
+    ; CHECK: [[TRUNC7:%[0-9]+]]:_(s16) = G_TRUNC [[UV6]](s32)
+    ; CHECK: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C]](s32)
+    ; CHECK: [[TRUNC8:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR7]](s32)
+    ; CHECK: [[LSHR8:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC5]], [[C1]](s16)
+    ; CHECK: [[LSHR9:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC6]], [[C1]](s16)
+    ; CHECK: [[LSHR10:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC7]], [[C1]](s16)
+    ; CHECK: [[LSHR11:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC8]], [[C1]](s16)
+    ; CHECK: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; CHECK: [[ANYEXT4:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR8]](s16)
+    ; CHECK: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CHECK: [[ANYEXT5:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR9]](s16)
+    ; CHECK: [[COPY7:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; CHECK: [[ANYEXT6:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR10]](s16)
+    ; CHECK: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CHECK: [[ANYEXT7:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR11]](s16)
+    ; CHECK: [[BUILD_VECTOR1:%[0-9]+]]:_(<8 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[ANYEXT4]](s32), [[COPY6]](s32), [[ANYEXT5]](s32), [[COPY7]](s32), [[ANYEXT6]](s32), [[COPY8]](s32), [[ANYEXT7]](s32)
+    ; CHECK: [[TRUNC9:%[0-9]+]]:_(<8 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<8 x s32>)
+    ; CHECK: [[UV7:%[0-9]+]]:_(s32), [[UV8:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV2]](s64)
+    ; CHECK: [[TRUNC10:%[0-9]+]]:_(s16) = G_TRUNC [[UV7]](s32)
+    ; CHECK: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C]](s32)
+    ; CHECK: [[TRUNC11:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR12]](s32)
+    ; CHECK: [[TRUNC12:%[0-9]+]]:_(s16) = G_TRUNC [[UV8]](s32)
+    ; CHECK: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV8]], [[C]](s32)
+    ; CHECK: [[TRUNC13:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR13]](s32)
+    ; CHECK: [[LSHR14:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC10]], [[C1]](s16)
+    ; CHECK: [[LSHR15:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC11]], [[C1]](s16)
+    ; CHECK: [[LSHR16:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC12]], [[C1]](s16)
+    ; CHECK: [[LSHR17:%[0-9]+]]:_(s16) = G_LSHR [[TRUNC13]], [[C1]](s16)
+    ; CHECK: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; CHECK: [[ANYEXT8:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR14]](s16)
+    ; CHECK: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; CHECK: [[ANYEXT9:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR15]](s16)
+    ; CHECK: [[COPY11:%[0-9]+]]:_(s32) = COPY [[UV8]](s32)
+    ; CHECK: [[ANYEXT10:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR16]](s16)
+    ; CHECK: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; CHECK: [[ANYEXT11:%[0-9]+]]:_(s32) = G_ANYEXT [[LSHR17]](s16)
+    ; CHECK: [[BUILD_VECTOR2:%[0-9]+]]:_(<8 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[ANYEXT8]](s32), [[COPY10]](s32), [[ANYEXT9]](s32), [[COPY11]](s32), [[ANYEXT10]](s32), [[COPY12]](s32), [[ANYEXT11]](s32)
+    ; CHECK: [[TRUNC14:%[0-9]+]]:_(<8 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<8 x s32>)
+    ; CHECK: [[CONCAT_VECTORS:%[0-9]+]]:_(<24 x s8>) = G_CONCAT_VECTORS [[TRUNC4]](<8 x s8>), [[TRUNC9]](<8 x s8>), [[TRUNC14]](<8 x s8>)
+    ; CHECK: S_ENDPGM 0, implicit [[CONCAT_VECTORS]](<24 x s8>)
     %0:_(<3 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5
     %1:_(<24 x s8>) = G_BITCAST %0
     S_ENDPGM 0, implicit %1
@@ -1511,8 +2349,89 @@ body: |
 
     ; CHECK-LABEL: name: test_bitcast_v24s8_to_v3s64
     ; CHECK: [[COPY:%[0-9]+]]:_(<24 x s8>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5
-    ; CHECK: [[BITCAST:%[0-9]+]]:_(<3 x s64>) = G_BITCAST [[COPY]](<24 x s8>)
-    ; CHECK: S_ENDPGM 0, implicit [[BITCAST]](<3 x s64>)
+    ; CHECK: [[UV:%[0-9]+]]:_(<8 x s8>), [[UV1:%[0-9]+]]:_(<8 x s8>), [[UV2:%[0-9]+]]:_(<8 x s8>) = G_UNMERGE_VALUES [[COPY]](<24 x s8>)
+    ; CHECK: [[UV3:%[0-9]+]]:_(s8), [[UV4:%[0-9]+]]:_(s8), [[UV5:%[0-9]+]]:_(s8), [[UV6:%[0-9]+]]:_(s8), [[UV7:%[0-9]+]]:_(s8), [[UV8:%[0-9]+]]:_(s8), [[UV9:%[0-9]+]]:_(s8), [[UV10:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[UV]](<8 x s8>)
+    ; CHECK: [[ZEXT:%[0-9]+]]:_(s16) = G_ZEXT [[UV3]](s8)
+    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s16) = G_ZEXT [[UV4]](s8)
+    ; CHECK: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
+    ; CHECK: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ZEXT1]], [[C]](s16)
+    ; CHECK: [[OR:%[0-9]+]]:_(s16) = G_OR [[ZEXT]], [[SHL]]
+    ; CHECK: [[ZEXT2:%[0-9]+]]:_(s16) = G_ZEXT [[UV5]](s8)
+    ; CHECK: [[ZEXT3:%[0-9]+]]:_(s16) = G_ZEXT [[UV6]](s8)
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ZEXT3]], [[C]](s16)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s16) = G_OR [[ZEXT2]], [[SHL1]]
+    ; CHECK: [[ZEXT4:%[0-9]+]]:_(s16) = G_ZEXT [[UV7]](s8)
+    ; CHECK: [[ZEXT5:%[0-9]+]]:_(s16) = G_ZEXT [[UV8]](s8)
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s16) = G_SHL [[ZEXT5]], [[C]](s16)
+    ; CHECK: [[OR2:%[0-9]+]]:_(s16) = G_OR [[ZEXT4]], [[SHL2]]
+    ; CHECK: [[ZEXT6:%[0-9]+]]:_(s16) = G_ZEXT [[UV9]](s8)
+    ; CHECK: [[ZEXT7:%[0-9]+]]:_(s16) = G_ZEXT [[UV10]](s8)
+    ; CHECK: [[SHL3:%[0-9]+]]:_(s16) = G_SHL [[ZEXT7]], [[C]](s16)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s16) = G_OR [[ZEXT6]], [[SHL3]]
+    ; CHECK: [[ZEXT8:%[0-9]+]]:_(s32) = G_ZEXT [[OR]](s16)
+    ; CHECK: [[ZEXT9:%[0-9]+]]:_(s32) = G_ZEXT [[OR1]](s16)
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[SHL4:%[0-9]+]]:_(s32) = G_SHL [[ZEXT9]], [[C1]](s32)
+    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[ZEXT8]], [[SHL4]]
+    ; CHECK: [[ZEXT10:%[0-9]+]]:_(s32) = G_ZEXT [[OR2]](s16)
+    ; CHECK: [[ZEXT11:%[0-9]+]]:_(s32) = G_ZEXT [[OR3]](s16)
+    ; CHECK: [[SHL5:%[0-9]+]]:_(s32) = G_SHL [[ZEXT11]], [[C1]](s32)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s32) = G_OR [[ZEXT10]], [[SHL5]]
+    ; CHECK: [[MV:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[OR4]](s32), [[OR5]](s32)
+    ; CHECK: [[UV11:%[0-9]+]]:_(s8), [[UV12:%[0-9]+]]:_(s8), [[UV13:%[0-9]+]]:_(s8), [[UV14:%[0-9]+]]:_(s8), [[UV15:%[0-9]+]]:_(s8), [[UV16:%[0-9]+]]:_(s8), [[UV17:%[0-9]+]]:_(s8), [[UV18:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[UV1]](<8 x s8>)
+    ; CHECK: [[ZEXT12:%[0-9]+]]:_(s16) = G_ZEXT [[UV11]](s8)
+    ; CHECK: [[ZEXT13:%[0-9]+]]:_(s16) = G_ZEXT [[UV12]](s8)
+    ; CHECK: [[SHL6:%[0-9]+]]:_(s16) = G_SHL [[ZEXT13]], [[C]](s16)
+    ; CHECK: [[OR6:%[0-9]+]]:_(s16) = G_OR [[ZEXT12]], [[SHL6]]
+    ; CHECK: [[ZEXT14:%[0-9]+]]:_(s16) = G_ZEXT [[UV13]](s8)
+    ; CHECK: [[ZEXT15:%[0-9]+]]:_(s16) = G_ZEXT [[UV14]](s8)
+    ; CHECK: [[SHL7:%[0-9]+]]:_(s16) = G_SHL [[ZEXT15]], [[C]](s16)
+    ; CHECK: [[OR7:%[0-9]+]]:_(s16) = G_OR [[ZEXT14]], [[SHL7]]
+    ; CHECK: [[ZEXT16:%[0-9]+]]:_(s16) = G_ZEXT [[UV15]](s8)
+    ; CHECK: [[ZEXT17:%[0-9]+]]:_(s16) = G_ZEXT [[UV16]](s8)
+    ; CHECK: [[SHL8:%[0-9]+]]:_(s16) = G_SHL [[ZEXT17]], [[C]](s16)
+    ; CHECK: [[OR8:%[0-9]+]]:_(s16) = G_OR [[ZEXT16]], [[SHL8]]
+    ; CHECK: [[ZEXT18:%[0-9]+]]:_(s16) = G_ZEXT [[UV17]](s8)
+    ; CHECK: [[ZEXT19:%[0-9]+]]:_(s16) = G_ZEXT [[UV18]](s8)
+    ; CHECK: [[SHL9:%[0-9]+]]:_(s16) = G_SHL [[ZEXT19]], [[C]](s16)
+    ; CHECK: [[OR9:%[0-9]+]]:_(s16) = G_OR [[ZEXT18]], [[SHL9]]
+    ; CHECK: [[ZEXT20:%[0-9]+]]:_(s32) = G_ZEXT [[OR6]](s16)
+    ; CHECK: [[ZEXT21:%[0-9]+]]:_(s32) = G_ZEXT [[OR7]](s16)
+    ; CHECK: [[SHL10:%[0-9]+]]:_(s32) = G_SHL [[ZEXT21]], [[C1]](s32)
+    ; CHECK: [[OR10:%[0-9]+]]:_(s32) = G_OR [[ZEXT20]], [[SHL10]]
+    ; CHECK: [[ZEXT22:%[0-9]+]]:_(s32) = G_ZEXT [[OR8]](s16)
+    ; CHECK: [[ZEXT23:%[0-9]+]]:_(s32) = G_ZEXT [[OR9]](s16)
+    ; CHECK: [[SHL11:%[0-9]+]]:_(s32) = G_SHL [[ZEXT23]], [[C1]](s32)
+    ; CHECK: [[OR11:%[0-9]+]]:_(s32) = G_OR [[ZEXT22]], [[SHL11]]
+    ; CHECK: [[MV1:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[OR10]](s32), [[OR11]](s32)
+    ; CHECK: [[UV19:%[0-9]+]]:_(s8), [[UV20:%[0-9]+]]:_(s8), [[UV21:%[0-9]+]]:_(s8), [[UV22:%[0-9]+]]:_(s8), [[UV23:%[0-9]+]]:_(s8), [[UV24:%[0-9]+]]:_(s8), [[UV25:%[0-9]+]]:_(s8), [[UV26:%[0-9]+]]:_(s8) = G_UNMERGE_VALUES [[UV2]](<8 x s8>)
+    ; CHECK: [[ZEXT24:%[0-9]+]]:_(s16) = G_ZEXT [[UV19]](s8)
+    ; CHECK: [[ZEXT25:%[0-9]+]]:_(s16) = G_ZEXT [[UV20]](s8)
+    ; CHECK: [[SHL12:%[0-9]+]]:_(s16) = G_SHL [[ZEXT25]], [[C]](s16)
+    ; CHECK: [[OR12:%[0-9]+]]:_(s16) = G_OR [[ZEXT24]], [[SHL12]]
+    ; CHECK: [[ZEXT26:%[0-9]+]]:_(s16) = G_ZEXT [[UV21]](s8)
+    ; CHECK: [[ZEXT27:%[0-9]+]]:_(s16) = G_ZEXT [[UV22]](s8)
+    ; CHECK: [[SHL13:%[0-9]+]]:_(s16) = G_SHL [[ZEXT27]], [[C]](s16)
+    ; CHECK: [[OR13:%[0-9]+]]:_(s16) = G_OR [[ZEXT26]], [[SHL13]]
+    ; CHECK: [[ZEXT28:%[0-9]+]]:_(s16) = G_ZEXT [[UV23]](s8)
+    ; CHECK: [[ZEXT29:%[0-9]+]]:_(s16) = G_ZEXT [[UV24]](s8)
+    ; CHECK: [[SHL14:%[0-9]+]]:_(s16) = G_SHL [[ZEXT29]], [[C]](s16)
+    ; CHECK: [[OR14:%[0-9]+]]:_(s16) = G_OR [[ZEXT28]], [[SHL14]]
+    ; CHECK: [[ZEXT30:%[0-9]+]]:_(s16) = G_ZEXT [[UV25]](s8)
+    ; CHECK: [[ZEXT31:%[0-9]+]]:_(s16) = G_ZEXT [[UV26]](s8)
+    ; CHECK: [[SHL15:%[0-9]+]]:_(s16) = G_SHL [[ZEXT31]], [[C]](s16)
+    ; CHECK: [[OR15:%[0-9]+]]:_(s16) = G_OR [[ZEXT30]], [[SHL15]]
+    ; CHECK: [[ZEXT32:%[0-9]+]]:_(s32) = G_ZEXT [[OR12]](s16)
+    ; CHECK: [[ZEXT33:%[0-9]+]]:_(s32) = G_ZEXT [[OR13]](s16)
+    ; CHECK: [[SHL16:%[0-9]+]]:_(s32) = G_SHL [[ZEXT33]], [[C1]](s32)
+    ; CHECK: [[OR16:%[0-9]+]]:_(s32) = G_OR [[ZEXT32]], [[SHL16]]
+    ; CHECK: [[ZEXT34:%[0-9]+]]:_(s32) = G_ZEXT [[OR14]](s16)
+    ; CHECK: [[ZEXT35:%[0-9]+]]:_(s32) = G_ZEXT [[OR15]](s16)
+    ; CHECK: [[SHL17:%[0-9]+]]:_(s32) = G_SHL [[ZEXT35]], [[C1]](s32)
+    ; CHECK: [[OR17:%[0-9]+]]:_(s32) = G_OR [[ZEXT34]], [[SHL17]]
+    ; CHECK: [[MV2:%[0-9]+]]:_(s64) = G_MERGE_VALUES [[OR16]](s32), [[OR17]](s32)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<3 x s64>) = G_BUILD_VECTOR [[MV]](s64), [[MV1]](s64), [[MV2]](s64)
+    ; CHECK: S_ENDPGM 0, implicit [[BUILD_VECTOR]](<3 x s64>)
     %0:_(<24 x s8>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5
     %1:_(<3 x s64>) = G_BITCAST %0
     S_ENDPGM 0, implicit %1

diff  --git a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-constant.mir b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-constant.mir
index f0a1e2170668..567a8716eb77 100644
--- a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-constant.mir
+++ b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-constant.mir
@@ -4941,28 +4941,146 @@ body: |
     ; CI-LABEL: name: test_load_constant_v8s8_align8
     ; CI: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; CI: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p4) :: (load 8, addrspace 4)
-    ; CI: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; CI: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; CI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; CI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; CI: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; VI-LABEL: name: test_load_constant_v8s8_align8
     ; VI: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; VI: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p4) :: (load 8, addrspace 4)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; VI: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; VI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; VI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; VI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; VI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; GFX9-LABEL: name: test_load_constant_v8s8_align8
     ; GFX9: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; GFX9: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p4) :: (load 8, addrspace 4)
-    ; GFX9: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; GFX9: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9: [[CONCAT_VECTORS2:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; GFX9: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS2]](<8 x s8>)
     ; CI-MESA-LABEL: name: test_load_constant_v8s8_align8
     ; CI-MESA: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; CI-MESA: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p4) :: (load 8, addrspace 4)
-    ; CI-MESA: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; CI-MESA: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; CI-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; CI-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-MESA: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-MESA: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; CI-MESA: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; GFX9-MESA-LABEL: name: test_load_constant_v8s8_align8
     ; GFX9-MESA: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; GFX9-MESA: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p4) :: (load 8, addrspace 4)
-    ; GFX9-MESA: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; GFX9-MESA: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; GFX9-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; GFX9-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9-MESA: [[CONCAT_VECTORS2:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; GFX9-MESA: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS2]](<8 x s8>)
     %0:_(p4) = COPY $vgpr0_vgpr1
     %1:_(<8 x s8>) = G_LOAD %0 :: (load 8, align 8, addrspace 4)
     $vgpr0_vgpr1 = COPY %1
@@ -4977,28 +5095,244 @@ body: |
     ; CI-LABEL: name: test_load_constant_v16s8_align16
     ; CI: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; CI: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p4) :: (load 16, addrspace 4)
-    ; CI: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; CI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; CI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; CI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CI: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CI: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; CI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CI: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CI: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; CI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; CI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; CI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; CI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; VI-LABEL: name: test_load_constant_v16s8_align16
     ; VI: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; VI: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p4) :: (load 16, addrspace 4)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; VI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; VI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; VI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; VI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; VI: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; VI: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; VI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; VI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; VI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; VI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; VI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; VI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; VI: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; VI: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; VI: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; VI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; VI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; VI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; VI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; VI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; VI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; GFX9-LABEL: name: test_load_constant_v16s8_align16
     ; GFX9: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; GFX9: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p4) :: (load 16, addrspace 4)
-    ; GFX9: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; GFX9: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; GFX9: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; GFX9: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; GFX9: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; GFX9: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; GFX9: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; GFX9: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; GFX9: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; GFX9: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; GFX9: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9: [[CONCAT_VECTORS4:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS4]](<16 x s8>)
     ; CI-MESA-LABEL: name: test_load_constant_v16s8_align16
     ; CI-MESA: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; CI-MESA: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p4) :: (load 16, addrspace 4)
-    ; CI-MESA: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; CI-MESA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; CI-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; CI-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-MESA: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-MESA: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-MESA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CI-MESA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CI-MESA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CI-MESA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CI-MESA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CI-MESA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CI-MESA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; CI-MESA: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI-MESA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI-MESA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CI-MESA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CI-MESA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CI-MESA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CI-MESA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; CI-MESA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; CI-MESA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; CI-MESA: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI-MESA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; CI-MESA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; GFX9-MESA-LABEL: name: test_load_constant_v16s8_align16
     ; GFX9-MESA: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; GFX9-MESA: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p4) :: (load 16, addrspace 4)
-    ; GFX9-MESA: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; GFX9-MESA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; GFX9-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; GFX9-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; GFX9-MESA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9-MESA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; GFX9-MESA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; GFX9-MESA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9-MESA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; GFX9-MESA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9-MESA: [[CONCAT_VECTORS4:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; GFX9-MESA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS4]](<16 x s8>)
     %0:_(p4) = COPY $vgpr0_vgpr1
     %1:_(<16 x s8>) = G_LOAD %0 :: (load 16, align 16, addrspace 4)
     $vgpr0_vgpr1_vgpr2_vgpr3 = COPY %1
@@ -5013,28 +5347,440 @@ body: |
     ; CI-LABEL: name: test_load_constant_v32s8_align32
     ; CI: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; CI: [[LOAD:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[COPY]](p4) :: (load 32, addrspace 4)
-    ; CI: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[LOAD]](<8 x s32>)
-    ; CI: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; CI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<8 x s32>)
+    ; CI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CI: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CI: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; CI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CI: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CI: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; CI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; CI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; CI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; CI: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; CI: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; CI: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; CI: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; CI: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; CI: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; CI: [[BUILD_VECTOR4:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY17]](s32), [[COPY18]](s32), [[COPY19]](s32), [[COPY20]](s32)
+    ; CI: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR4]](<4 x s32>)
+    ; CI: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; CI: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; CI: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; CI: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; CI: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; CI: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; CI: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; CI: [[BUILD_VECTOR5:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY21]](s32), [[COPY22]](s32), [[COPY23]](s32), [[COPY24]](s32)
+    ; CI: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR5]](<4 x s32>)
+    ; CI: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C]](s32)
+    ; CI: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; CI: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; CI: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; CI: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; CI: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; CI: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; CI: [[BUILD_VECTOR6:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY25]](s32), [[COPY26]](s32), [[COPY27]](s32), [[COPY28]](s32)
+    ; CI: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR6]](<4 x s32>)
+    ; CI: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C]](s32)
+    ; CI: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; CI: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; CI: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; CI: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; CI: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; CI: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; CI: [[BUILD_VECTOR7:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY29]](s32), [[COPY30]](s32), [[COPY31]](s32), [[COPY32]](s32)
+    ; CI: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR7]](<4 x s32>)
+    ; CI: [[CONCAT_VECTORS:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; CI: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS]](<32 x s8>)
     ; VI-LABEL: name: test_load_constant_v32s8_align32
     ; VI: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; VI: [[LOAD:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[COPY]](p4) :: (load 32, addrspace 4)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[LOAD]](<8 x s32>)
-    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; VI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<8 x s32>)
+    ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; VI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; VI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; VI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; VI: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; VI: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; VI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; VI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; VI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; VI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; VI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; VI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; VI: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; VI: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; VI: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; VI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; VI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; VI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; VI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; VI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; VI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; VI: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; VI: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; VI: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; VI: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; VI: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; VI: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; VI: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; VI: [[BUILD_VECTOR4:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY17]](s32), [[COPY18]](s32), [[COPY19]](s32), [[COPY20]](s32)
+    ; VI: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR4]](<4 x s32>)
+    ; VI: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; VI: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; VI: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; VI: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; VI: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; VI: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; VI: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; VI: [[BUILD_VECTOR5:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY21]](s32), [[COPY22]](s32), [[COPY23]](s32), [[COPY24]](s32)
+    ; VI: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR5]](<4 x s32>)
+    ; VI: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C]](s32)
+    ; VI: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; VI: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; VI: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; VI: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; VI: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; VI: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; VI: [[BUILD_VECTOR6:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY25]](s32), [[COPY26]](s32), [[COPY27]](s32), [[COPY28]](s32)
+    ; VI: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR6]](<4 x s32>)
+    ; VI: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C]](s32)
+    ; VI: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; VI: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; VI: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; VI: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; VI: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; VI: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; VI: [[BUILD_VECTOR7:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY29]](s32), [[COPY30]](s32), [[COPY31]](s32), [[COPY32]](s32)
+    ; VI: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR7]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS]](<32 x s8>)
     ; GFX9-LABEL: name: test_load_constant_v32s8_align32
     ; GFX9: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; GFX9: [[LOAD:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[COPY]](p4) :: (load 32, addrspace 4)
-    ; GFX9: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[LOAD]](<8 x s32>)
-    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<8 x s32>)
+    ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; GFX9: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; GFX9: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; GFX9: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; GFX9: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; GFX9: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; GFX9: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; GFX9: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; GFX9: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; GFX9: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; GFX9: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; GFX9: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; GFX9: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; GFX9: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; GFX9: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC8:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY17]](s32), [[COPY18]](s32)
+    ; GFX9: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; GFX9: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC9:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY19]](s32), [[COPY20]](s32)
+    ; GFX9: [[CONCAT_VECTORS4:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC8]](<2 x s16>), [[BUILD_VECTOR_TRUNC9]](<2 x s16>)
+    ; GFX9: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS4]](<4 x s16>)
+    ; GFX9: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; GFX9: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; GFX9: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; GFX9: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; GFX9: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC10:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY21]](s32), [[COPY22]](s32)
+    ; GFX9: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; GFX9: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC11:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY23]](s32), [[COPY24]](s32)
+    ; GFX9: [[CONCAT_VECTORS5:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC10]](<2 x s16>), [[BUILD_VECTOR_TRUNC11]](<2 x s16>)
+    ; GFX9: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS5]](<4 x s16>)
+    ; GFX9: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C]](s32)
+    ; GFX9: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; GFX9: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; GFX9: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; GFX9: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC12:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY25]](s32), [[COPY26]](s32)
+    ; GFX9: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; GFX9: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC13:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY27]](s32), [[COPY28]](s32)
+    ; GFX9: [[CONCAT_VECTORS6:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC12]](<2 x s16>), [[BUILD_VECTOR_TRUNC13]](<2 x s16>)
+    ; GFX9: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS6]](<4 x s16>)
+    ; GFX9: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C]](s32)
+    ; GFX9: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; GFX9: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; GFX9: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; GFX9: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC14:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY29]](s32), [[COPY30]](s32)
+    ; GFX9: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; GFX9: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC15:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY31]](s32), [[COPY32]](s32)
+    ; GFX9: [[CONCAT_VECTORS7:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC14]](<2 x s16>), [[BUILD_VECTOR_TRUNC15]](<2 x s16>)
+    ; GFX9: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS7]](<4 x s16>)
+    ; GFX9: [[CONCAT_VECTORS8:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS8]](<32 x s8>)
     ; CI-MESA-LABEL: name: test_load_constant_v32s8_align32
     ; CI-MESA: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; CI-MESA: [[LOAD:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[COPY]](p4) :: (load 32, addrspace 4)
-    ; CI-MESA: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[LOAD]](<8 x s32>)
-    ; CI-MESA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; CI-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<8 x s32>)
+    ; CI-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-MESA: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-MESA: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-MESA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CI-MESA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CI-MESA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CI-MESA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CI-MESA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CI-MESA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CI-MESA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; CI-MESA: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI-MESA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI-MESA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CI-MESA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CI-MESA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CI-MESA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CI-MESA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; CI-MESA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; CI-MESA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; CI-MESA: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI-MESA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI-MESA: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; CI-MESA: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; CI-MESA: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; CI-MESA: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; CI-MESA: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; CI-MESA: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; CI-MESA: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; CI-MESA: [[BUILD_VECTOR4:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY17]](s32), [[COPY18]](s32), [[COPY19]](s32), [[COPY20]](s32)
+    ; CI-MESA: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR4]](<4 x s32>)
+    ; CI-MESA: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; CI-MESA: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; CI-MESA: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; CI-MESA: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; CI-MESA: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; CI-MESA: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; CI-MESA: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; CI-MESA: [[BUILD_VECTOR5:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY21]](s32), [[COPY22]](s32), [[COPY23]](s32), [[COPY24]](s32)
+    ; CI-MESA: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR5]](<4 x s32>)
+    ; CI-MESA: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C]](s32)
+    ; CI-MESA: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; CI-MESA: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; CI-MESA: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; CI-MESA: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; CI-MESA: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; CI-MESA: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; CI-MESA: [[BUILD_VECTOR6:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY25]](s32), [[COPY26]](s32), [[COPY27]](s32), [[COPY28]](s32)
+    ; CI-MESA: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR6]](<4 x s32>)
+    ; CI-MESA: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C]](s32)
+    ; CI-MESA: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; CI-MESA: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; CI-MESA: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; CI-MESA: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; CI-MESA: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; CI-MESA: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; CI-MESA: [[BUILD_VECTOR7:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY29]](s32), [[COPY30]](s32), [[COPY31]](s32), [[COPY32]](s32)
+    ; CI-MESA: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR7]](<4 x s32>)
+    ; CI-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; CI-MESA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS]](<32 x s8>)
     ; GFX9-MESA-LABEL: name: test_load_constant_v32s8_align32
     ; GFX9-MESA: [[COPY:%[0-9]+]]:_(p4) = COPY $vgpr0_vgpr1
     ; GFX9-MESA: [[LOAD:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[COPY]](p4) :: (load 32, addrspace 4)
-    ; GFX9-MESA: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[LOAD]](<8 x s32>)
-    ; GFX9-MESA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; GFX9-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<8 x s32>)
+    ; GFX9-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; GFX9-MESA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9-MESA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; GFX9-MESA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; GFX9-MESA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9-MESA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; GFX9-MESA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; GFX9-MESA: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC8:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY17]](s32), [[COPY18]](s32)
+    ; GFX9-MESA: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; GFX9-MESA: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC9:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY19]](s32), [[COPY20]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS4:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC8]](<2 x s16>), [[BUILD_VECTOR_TRUNC9]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS4]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; GFX9-MESA: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC10:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY21]](s32), [[COPY22]](s32)
+    ; GFX9-MESA: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; GFX9-MESA: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC11:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY23]](s32), [[COPY24]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS5:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC10]](<2 x s16>), [[BUILD_VECTOR_TRUNC11]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS5]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; GFX9-MESA: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC12:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY25]](s32), [[COPY26]](s32)
+    ; GFX9-MESA: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; GFX9-MESA: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC13:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY27]](s32), [[COPY28]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS6:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC12]](<2 x s16>), [[BUILD_VECTOR_TRUNC13]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS6]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; GFX9-MESA: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC14:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY29]](s32), [[COPY30]](s32)
+    ; GFX9-MESA: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; GFX9-MESA: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC15:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY31]](s32), [[COPY32]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS7:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC14]](<2 x s16>), [[BUILD_VECTOR_TRUNC15]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS7]](<4 x s16>)
+    ; GFX9-MESA: [[CONCAT_VECTORS8:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; GFX9-MESA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS8]](<32 x s8>)
     %0:_(p4) = COPY $vgpr0_vgpr1
     %1:_(<32 x s8>) = G_LOAD %0 :: (load 32, align 32, addrspace 4)
     $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY %1

diff  --git a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-flat.mir b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-flat.mir
index 73d2c9f9aa23..3167b4044a74 100644
--- a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-flat.mir
+++ b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-flat.mir
@@ -4961,28 +4961,146 @@ body: |
     ; CI-LABEL: name: test_load_flat_v8s8_align8
     ; CI: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; CI: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p0) :: (load 8)
-    ; CI: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; CI: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; CI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; CI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; CI: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; VI-LABEL: name: test_load_flat_v8s8_align8
     ; VI: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; VI: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p0) :: (load 8)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; VI: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; VI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; VI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; VI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; VI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; GFX9-LABEL: name: test_load_flat_v8s8_align8
     ; GFX9: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; GFX9: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p0) :: (load 8)
-    ; GFX9: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; GFX9: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9: [[CONCAT_VECTORS2:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; GFX9: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS2]](<8 x s8>)
     ; CI-MESA-LABEL: name: test_load_flat_v8s8_align8
     ; CI-MESA: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; CI-MESA: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p0) :: (load 8)
-    ; CI-MESA: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; CI-MESA: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; CI-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; CI-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-MESA: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-MESA: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; CI-MESA: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; GFX9-MESA-LABEL: name: test_load_flat_v8s8_align8
     ; GFX9-MESA: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; GFX9-MESA: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p0) :: (load 8)
-    ; GFX9-MESA: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; GFX9-MESA: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; GFX9-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; GFX9-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9-MESA: [[CONCAT_VECTORS2:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; GFX9-MESA: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS2]](<8 x s8>)
     %0:_(p0) = COPY $vgpr0_vgpr1
     %1:_(<8 x s8>) = G_LOAD %0 :: (load 8, align 8, addrspace 0)
     $vgpr0_vgpr1 = COPY %1
@@ -4997,28 +5115,244 @@ body: |
     ; CI-LABEL: name: test_load_flat_v16s8_align16
     ; CI: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; CI: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p0) :: (load 16)
-    ; CI: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; CI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; CI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; CI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CI: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CI: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; CI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CI: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CI: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; CI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; CI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; CI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; CI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; VI-LABEL: name: test_load_flat_v16s8_align16
     ; VI: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; VI: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p0) :: (load 16)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; VI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; VI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; VI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; VI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; VI: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; VI: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; VI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; VI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; VI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; VI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; VI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; VI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; VI: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; VI: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; VI: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; VI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; VI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; VI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; VI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; VI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; VI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; GFX9-LABEL: name: test_load_flat_v16s8_align16
     ; GFX9: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; GFX9: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p0) :: (load 16)
-    ; GFX9: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; GFX9: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; GFX9: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; GFX9: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; GFX9: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; GFX9: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; GFX9: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; GFX9: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; GFX9: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; GFX9: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; GFX9: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9: [[CONCAT_VECTORS4:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS4]](<16 x s8>)
     ; CI-MESA-LABEL: name: test_load_flat_v16s8_align16
     ; CI-MESA: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; CI-MESA: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p0) :: (load 16)
-    ; CI-MESA: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; CI-MESA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; CI-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; CI-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-MESA: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-MESA: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-MESA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CI-MESA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CI-MESA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CI-MESA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CI-MESA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CI-MESA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CI-MESA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; CI-MESA: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI-MESA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI-MESA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CI-MESA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CI-MESA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CI-MESA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CI-MESA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; CI-MESA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; CI-MESA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; CI-MESA: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI-MESA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; CI-MESA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; GFX9-MESA-LABEL: name: test_load_flat_v16s8_align16
     ; GFX9-MESA: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; GFX9-MESA: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p0) :: (load 16)
-    ; GFX9-MESA: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; GFX9-MESA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; GFX9-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; GFX9-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; GFX9-MESA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9-MESA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; GFX9-MESA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; GFX9-MESA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9-MESA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; GFX9-MESA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9-MESA: [[CONCAT_VECTORS4:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; GFX9-MESA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS4]](<16 x s8>)
     %0:_(p0) = COPY $vgpr0_vgpr1
     %1:_(<16 x s8>) = G_LOAD %0 :: (load 16, align 16, addrspace 0)
     $vgpr0_vgpr1_vgpr2_vgpr3 = COPY %1
@@ -5036,45 +5370,457 @@ body: |
     ; CI: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 16
     ; CI: [[PTR_ADD:%[0-9]+]]:_(p0) = G_PTR_ADD [[COPY]], [[C]](s64)
     ; CI: [[LOAD1:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[PTR_ADD]](p0) :: (load 16 + 16)
-    ; CI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s32>) = G_CONCAT_VECTORS [[LOAD]](<4 x s32>), [[LOAD1]](<4 x s32>)
-    ; CI: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[CONCAT_VECTORS]](<8 x s32>)
-    ; CI: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; CI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; CI: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<4 x s32>)
+    ; CI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C3]](s32)
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C3]](s32)
+    ; CI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CI: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CI: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C3]](s32)
+    ; CI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; CI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CI: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CI: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C3]](s32)
+    ; CI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; CI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; CI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; CI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; CI: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; CI: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C3]](s32)
+    ; CI: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; CI: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; CI: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; CI: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; CI: [[BUILD_VECTOR4:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY17]](s32), [[COPY18]](s32), [[COPY19]](s32), [[COPY20]](s32)
+    ; CI: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR4]](<4 x s32>)
+    ; CI: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; CI: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; CI: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C3]](s32)
+    ; CI: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; CI: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; CI: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; CI: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; CI: [[BUILD_VECTOR5:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY21]](s32), [[COPY22]](s32), [[COPY23]](s32), [[COPY24]](s32)
+    ; CI: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR5]](<4 x s32>)
+    ; CI: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; CI: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; CI: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C3]](s32)
+    ; CI: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; CI: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; CI: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; CI: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; CI: [[BUILD_VECTOR6:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY25]](s32), [[COPY26]](s32), [[COPY27]](s32), [[COPY28]](s32)
+    ; CI: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR6]](<4 x s32>)
+    ; CI: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; CI: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; CI: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C3]](s32)
+    ; CI: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; CI: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; CI: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; CI: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; CI: [[BUILD_VECTOR7:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY29]](s32), [[COPY30]](s32), [[COPY31]](s32), [[COPY32]](s32)
+    ; CI: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR7]](<4 x s32>)
+    ; CI: [[CONCAT_VECTORS:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; CI: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS]](<32 x s8>)
     ; VI-LABEL: name: test_load_flat_v32s8_align32
     ; VI: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; VI: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p0) :: (load 16, align 32)
     ; VI: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 16
     ; VI: [[PTR_ADD:%[0-9]+]]:_(p0) = G_PTR_ADD [[COPY]], [[C]](s64)
     ; VI: [[LOAD1:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[PTR_ADD]](p0) :: (load 16 + 16)
-    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s32>) = G_CONCAT_VECTORS [[LOAD]](<4 x s32>), [[LOAD1]](<4 x s32>)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[CONCAT_VECTORS]](<8 x s32>)
-    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; VI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; VI: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<4 x s32>)
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; VI: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; VI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C3]](s32)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; VI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; VI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C3]](s32)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; VI: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; VI: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C3]](s32)
+    ; VI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; VI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; VI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; VI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; VI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; VI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; VI: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; VI: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; VI: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C3]](s32)
+    ; VI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; VI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; VI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; VI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; VI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; VI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; VI: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; VI: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; VI: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C3]](s32)
+    ; VI: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; VI: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; VI: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; VI: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; VI: [[BUILD_VECTOR4:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY17]](s32), [[COPY18]](s32), [[COPY19]](s32), [[COPY20]](s32)
+    ; VI: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR4]](<4 x s32>)
+    ; VI: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; VI: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; VI: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C3]](s32)
+    ; VI: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; VI: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; VI: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; VI: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; VI: [[BUILD_VECTOR5:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY21]](s32), [[COPY22]](s32), [[COPY23]](s32), [[COPY24]](s32)
+    ; VI: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR5]](<4 x s32>)
+    ; VI: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; VI: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; VI: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C3]](s32)
+    ; VI: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; VI: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; VI: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; VI: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; VI: [[BUILD_VECTOR6:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY25]](s32), [[COPY26]](s32), [[COPY27]](s32), [[COPY28]](s32)
+    ; VI: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR6]](<4 x s32>)
+    ; VI: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; VI: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; VI: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C3]](s32)
+    ; VI: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; VI: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; VI: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; VI: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; VI: [[BUILD_VECTOR7:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY29]](s32), [[COPY30]](s32), [[COPY31]](s32), [[COPY32]](s32)
+    ; VI: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR7]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS]](<32 x s8>)
     ; GFX9-LABEL: name: test_load_flat_v32s8_align32
     ; GFX9: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; GFX9: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p0) :: (load 16, align 32)
     ; GFX9: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 16
     ; GFX9: [[PTR_ADD:%[0-9]+]]:_(p0) = G_PTR_ADD [[COPY]], [[C]](s64)
     ; GFX9: [[LOAD1:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[PTR_ADD]](p0) :: (load 16 + 16)
-    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s32>) = G_CONCAT_VECTORS [[LOAD]](<4 x s32>), [[LOAD1]](<4 x s32>)
-    ; GFX9: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[CONCAT_VECTORS]](<8 x s32>)
-    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; GFX9: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<4 x s32>)
+    ; GFX9: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C3]](s32)
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C3]](s32)
+    ; GFX9: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; GFX9: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; GFX9: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C3]](s32)
+    ; GFX9: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; GFX9: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; GFX9: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; GFX9: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; GFX9: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C3]](s32)
+    ; GFX9: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; GFX9: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; GFX9: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; GFX9: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; GFX9: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C3]](s32)
+    ; GFX9: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; GFX9: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC8:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY17]](s32), [[COPY18]](s32)
+    ; GFX9: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; GFX9: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC9:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY19]](s32), [[COPY20]](s32)
+    ; GFX9: [[CONCAT_VECTORS4:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC8]](<2 x s16>), [[BUILD_VECTOR_TRUNC9]](<2 x s16>)
+    ; GFX9: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS4]](<4 x s16>)
+    ; GFX9: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; GFX9: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; GFX9: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C3]](s32)
+    ; GFX9: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; GFX9: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC10:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY21]](s32), [[COPY22]](s32)
+    ; GFX9: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; GFX9: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC11:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY23]](s32), [[COPY24]](s32)
+    ; GFX9: [[CONCAT_VECTORS5:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC10]](<2 x s16>), [[BUILD_VECTOR_TRUNC11]](<2 x s16>)
+    ; GFX9: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS5]](<4 x s16>)
+    ; GFX9: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; GFX9: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; GFX9: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C3]](s32)
+    ; GFX9: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; GFX9: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC12:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY25]](s32), [[COPY26]](s32)
+    ; GFX9: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; GFX9: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC13:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY27]](s32), [[COPY28]](s32)
+    ; GFX9: [[CONCAT_VECTORS6:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC12]](<2 x s16>), [[BUILD_VECTOR_TRUNC13]](<2 x s16>)
+    ; GFX9: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS6]](<4 x s16>)
+    ; GFX9: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; GFX9: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; GFX9: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C3]](s32)
+    ; GFX9: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; GFX9: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC14:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY29]](s32), [[COPY30]](s32)
+    ; GFX9: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; GFX9: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC15:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY31]](s32), [[COPY32]](s32)
+    ; GFX9: [[CONCAT_VECTORS7:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC14]](<2 x s16>), [[BUILD_VECTOR_TRUNC15]](<2 x s16>)
+    ; GFX9: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS7]](<4 x s16>)
+    ; GFX9: [[CONCAT_VECTORS8:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS8]](<32 x s8>)
     ; CI-MESA-LABEL: name: test_load_flat_v32s8_align32
     ; CI-MESA: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; CI-MESA: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p0) :: (load 16, align 32)
     ; CI-MESA: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 16
     ; CI-MESA: [[PTR_ADD:%[0-9]+]]:_(p0) = G_PTR_ADD [[COPY]], [[C]](s64)
     ; CI-MESA: [[LOAD1:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[PTR_ADD]](p0) :: (load 16 + 16)
-    ; CI-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s32>) = G_CONCAT_VECTORS [[LOAD]](<4 x s32>), [[LOAD1]](<4 x s32>)
-    ; CI-MESA: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[CONCAT_VECTORS]](<8 x s32>)
-    ; CI-MESA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; CI-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; CI-MESA: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<4 x s32>)
+    ; CI-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-MESA: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C3]](s32)
+    ; CI-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-MESA: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C3]](s32)
+    ; CI-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-MESA: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-MESA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CI-MESA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CI-MESA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C3]](s32)
+    ; CI-MESA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CI-MESA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CI-MESA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CI-MESA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; CI-MESA: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI-MESA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI-MESA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CI-MESA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CI-MESA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C3]](s32)
+    ; CI-MESA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CI-MESA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; CI-MESA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; CI-MESA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; CI-MESA: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI-MESA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI-MESA: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; CI-MESA: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; CI-MESA: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C3]](s32)
+    ; CI-MESA: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; CI-MESA: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; CI-MESA: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; CI-MESA: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; CI-MESA: [[BUILD_VECTOR4:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY17]](s32), [[COPY18]](s32), [[COPY19]](s32), [[COPY20]](s32)
+    ; CI-MESA: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR4]](<4 x s32>)
+    ; CI-MESA: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; CI-MESA: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; CI-MESA: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C3]](s32)
+    ; CI-MESA: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; CI-MESA: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; CI-MESA: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; CI-MESA: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; CI-MESA: [[BUILD_VECTOR5:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY21]](s32), [[COPY22]](s32), [[COPY23]](s32), [[COPY24]](s32)
+    ; CI-MESA: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR5]](<4 x s32>)
+    ; CI-MESA: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; CI-MESA: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; CI-MESA: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C3]](s32)
+    ; CI-MESA: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; CI-MESA: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; CI-MESA: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; CI-MESA: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; CI-MESA: [[BUILD_VECTOR6:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY25]](s32), [[COPY26]](s32), [[COPY27]](s32), [[COPY28]](s32)
+    ; CI-MESA: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR6]](<4 x s32>)
+    ; CI-MESA: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; CI-MESA: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; CI-MESA: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C3]](s32)
+    ; CI-MESA: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; CI-MESA: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; CI-MESA: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; CI-MESA: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; CI-MESA: [[BUILD_VECTOR7:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY29]](s32), [[COPY30]](s32), [[COPY31]](s32), [[COPY32]](s32)
+    ; CI-MESA: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR7]](<4 x s32>)
+    ; CI-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; CI-MESA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS]](<32 x s8>)
     ; GFX9-MESA-LABEL: name: test_load_flat_v32s8_align32
     ; GFX9-MESA: [[COPY:%[0-9]+]]:_(p0) = COPY $vgpr0_vgpr1
     ; GFX9-MESA: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p0) :: (load 16, align 32)
     ; GFX9-MESA: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 16
     ; GFX9-MESA: [[PTR_ADD:%[0-9]+]]:_(p0) = G_PTR_ADD [[COPY]], [[C]](s64)
     ; GFX9-MESA: [[LOAD1:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[PTR_ADD]](p0) :: (load 16 + 16)
-    ; GFX9-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s32>) = G_CONCAT_VECTORS [[LOAD]](<4 x s32>), [[LOAD1]](<4 x s32>)
-    ; GFX9-MESA: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[CONCAT_VECTORS]](<8 x s32>)
-    ; GFX9-MESA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; GFX9-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; GFX9-MESA: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD1]](<4 x s32>)
+    ; GFX9-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9-MESA: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C3]](s32)
+    ; GFX9-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C3]](s32)
+    ; GFX9-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; GFX9-MESA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C3]](s32)
+    ; GFX9-MESA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; GFX9-MESA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9-MESA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; GFX9-MESA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; GFX9-MESA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C3]](s32)
+    ; GFX9-MESA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; GFX9-MESA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9-MESA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; GFX9-MESA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; GFX9-MESA: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C3]](s32)
+    ; GFX9-MESA: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; GFX9-MESA: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC8:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY17]](s32), [[COPY18]](s32)
+    ; GFX9-MESA: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; GFX9-MESA: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC9:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY19]](s32), [[COPY20]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS4:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC8]](<2 x s16>), [[BUILD_VECTOR_TRUNC9]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS4]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; GFX9-MESA: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C3]](s32)
+    ; GFX9-MESA: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; GFX9-MESA: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC10:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY21]](s32), [[COPY22]](s32)
+    ; GFX9-MESA: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; GFX9-MESA: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC11:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY23]](s32), [[COPY24]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS5:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC10]](<2 x s16>), [[BUILD_VECTOR_TRUNC11]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS5]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; GFX9-MESA: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C3]](s32)
+    ; GFX9-MESA: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; GFX9-MESA: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC12:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY25]](s32), [[COPY26]](s32)
+    ; GFX9-MESA: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; GFX9-MESA: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC13:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY27]](s32), [[COPY28]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS6:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC12]](<2 x s16>), [[BUILD_VECTOR_TRUNC13]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS6]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; GFX9-MESA: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C3]](s32)
+    ; GFX9-MESA: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; GFX9-MESA: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC14:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY29]](s32), [[COPY30]](s32)
+    ; GFX9-MESA: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; GFX9-MESA: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC15:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY31]](s32), [[COPY32]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS7:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC14]](<2 x s16>), [[BUILD_VECTOR_TRUNC15]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS7]](<4 x s16>)
+    ; GFX9-MESA: [[CONCAT_VECTORS8:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; GFX9-MESA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS8]](<32 x s8>)
     %0:_(p0) = COPY $vgpr0_vgpr1
     %1:_(<32 x s8>) = G_LOAD %0 :: (load 32, align 32, addrspace 0)
     $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY %1

diff  --git a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-global.mir b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-global.mir
index ee36dcad9bbd..79da3a660ce9 100644
--- a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-global.mir
+++ b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-global.mir
@@ -4801,33 +4801,173 @@ body: |
     ; SI-LABEL: name: test_load_global_v8s8_align8
     ; SI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; SI: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p1) :: (load 8, addrspace 1)
-    ; SI: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; SI: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; SI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; SI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; SI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; SI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; SI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; SI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; SI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; SI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; SI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; SI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; SI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; SI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; SI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; SI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; SI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; SI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; SI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; SI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; SI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; SI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; SI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; SI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; SI: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; CI-HSA-LABEL: name: test_load_global_v8s8_align8
     ; CI-HSA: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; CI-HSA: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p1) :: (load 8, addrspace 1)
-    ; CI-HSA: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; CI-HSA: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; CI-HSA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; CI-HSA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-HSA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI-HSA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-HSA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-HSA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-HSA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-HSA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-HSA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-HSA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-HSA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-HSA: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-HSA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-HSA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI-HSA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-HSA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-HSA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-HSA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-HSA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-HSA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-HSA: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-HSA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-HSA: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; CI-HSA: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; CI-MESA-LABEL: name: test_load_global_v8s8_align8
     ; CI-MESA: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; CI-MESA: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p1) :: (load 8, addrspace 1)
-    ; CI-MESA: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; CI-MESA: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; CI-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; CI-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-MESA: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-MESA: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; CI-MESA: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; VI-LABEL: name: test_load_global_v8s8_align8
     ; VI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; VI: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p1) :: (load 8, addrspace 1)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; VI: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; VI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; VI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; VI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; VI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; GFX9-HSA-LABEL: name: test_load_global_v8s8_align8
     ; GFX9-HSA: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; GFX9-HSA: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p1) :: (load 8, addrspace 1)
-    ; GFX9-HSA: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; GFX9-HSA: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; GFX9-HSA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; GFX9-HSA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9-HSA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9-HSA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9-HSA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9-HSA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9-HSA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9-HSA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9-HSA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9-HSA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9-HSA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9-HSA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9-HSA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9-HSA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9-HSA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9-HSA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9-HSA: [[CONCAT_VECTORS2:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; GFX9-HSA: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS2]](<8 x s8>)
     ; GFX9-MESA-LABEL: name: test_load_global_v8s8_align8
     ; GFX9-MESA: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; GFX9-MESA: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p1) :: (load 8, addrspace 1)
-    ; GFX9-MESA: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; GFX9-MESA: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; GFX9-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; GFX9-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9-MESA: [[CONCAT_VECTORS2:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; GFX9-MESA: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS2]](<8 x s8>)
     %0:_(p1) = COPY $vgpr0_vgpr1
     %1:_(<8 x s8>) = G_LOAD %0 :: (load 8, align 8, addrspace 1)
     $vgpr0_vgpr1 = COPY %1
@@ -4842,33 +4982,289 @@ body: |
     ; SI-LABEL: name: test_load_global_v16s8_align16
     ; SI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; SI: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p1) :: (load 16, addrspace 1)
-    ; SI: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; SI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; SI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; SI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; SI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; SI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; SI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; SI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; SI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; SI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; SI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; SI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; SI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; SI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; SI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; SI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; SI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; SI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; SI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; SI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; SI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; SI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; SI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; SI: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; SI: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; SI: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; SI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; SI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; SI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; SI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; SI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; SI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; SI: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; SI: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; SI: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; SI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; SI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; SI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; SI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; SI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; SI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; SI: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; SI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; CI-HSA-LABEL: name: test_load_global_v16s8_align16
     ; CI-HSA: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; CI-HSA: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p1) :: (load 16, addrspace 1)
-    ; CI-HSA: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; CI-HSA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; CI-HSA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; CI-HSA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-HSA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI-HSA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-HSA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-HSA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-HSA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-HSA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-HSA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-HSA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-HSA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-HSA: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-HSA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-HSA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI-HSA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-HSA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-HSA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-HSA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-HSA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-HSA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-HSA: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-HSA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-HSA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CI-HSA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CI-HSA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CI-HSA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CI-HSA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CI-HSA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CI-HSA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; CI-HSA: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI-HSA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI-HSA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CI-HSA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CI-HSA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CI-HSA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CI-HSA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; CI-HSA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; CI-HSA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; CI-HSA: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI-HSA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI-HSA: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; CI-HSA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; CI-MESA-LABEL: name: test_load_global_v16s8_align16
     ; CI-MESA: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; CI-MESA: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p1) :: (load 16, addrspace 1)
-    ; CI-MESA: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; CI-MESA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; CI-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; CI-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-MESA: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-MESA: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-MESA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CI-MESA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CI-MESA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CI-MESA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CI-MESA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CI-MESA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CI-MESA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; CI-MESA: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI-MESA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI-MESA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CI-MESA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CI-MESA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CI-MESA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CI-MESA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; CI-MESA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; CI-MESA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; CI-MESA: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI-MESA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; CI-MESA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; VI-LABEL: name: test_load_global_v16s8_align16
     ; VI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; VI: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p1) :: (load 16, addrspace 1)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; VI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; VI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; VI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; VI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; VI: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; VI: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; VI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; VI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; VI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; VI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; VI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; VI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; VI: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; VI: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; VI: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; VI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; VI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; VI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; VI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; VI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; VI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; GFX9-HSA-LABEL: name: test_load_global_v16s8_align16
     ; GFX9-HSA: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; GFX9-HSA: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p1) :: (load 16, addrspace 1)
-    ; GFX9-HSA: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; GFX9-HSA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; GFX9-HSA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; GFX9-HSA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9-HSA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9-HSA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9-HSA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9-HSA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9-HSA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9-HSA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9-HSA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9-HSA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9-HSA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9-HSA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9-HSA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9-HSA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9-HSA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9-HSA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9-HSA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; GFX9-HSA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; GFX9-HSA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; GFX9-HSA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9-HSA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; GFX9-HSA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9-HSA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; GFX9-HSA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; GFX9-HSA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; GFX9-HSA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9-HSA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; GFX9-HSA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9-HSA: [[CONCAT_VECTORS4:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; GFX9-HSA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS4]](<16 x s8>)
     ; GFX9-MESA-LABEL: name: test_load_global_v16s8_align16
     ; GFX9-MESA: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; GFX9-MESA: [[LOAD:%[0-9]+]]:_(<4 x s32>) = G_LOAD [[COPY]](p1) :: (load 16, addrspace 1)
-    ; GFX9-MESA: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[LOAD]](<4 x s32>)
-    ; GFX9-MESA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; GFX9-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<4 x s32>)
+    ; GFX9-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; GFX9-MESA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9-MESA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; GFX9-MESA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; GFX9-MESA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9-MESA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; GFX9-MESA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9-MESA: [[CONCAT_VECTORS4:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; GFX9-MESA: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS4]](<16 x s8>)
     %0:_(p1) = COPY $vgpr0_vgpr1
     %1:_(<16 x s8>) = G_LOAD %0 :: (load 16, align 16, addrspace 1)
     $vgpr0_vgpr1_vgpr2_vgpr3 = COPY %1
@@ -4883,33 +5279,521 @@ body: |
     ; SI-LABEL: name: test_load_global_v32s8_align32
     ; SI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; SI: [[LOAD:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[COPY]](p1) :: (load 32, addrspace 1)
-    ; SI: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[LOAD]](<8 x s32>)
-    ; SI: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; SI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<8 x s32>)
+    ; SI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; SI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; SI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; SI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; SI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; SI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; SI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; SI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; SI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; SI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; SI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; SI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; SI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; SI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; SI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; SI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; SI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; SI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; SI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; SI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; SI: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; SI: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; SI: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; SI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; SI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; SI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; SI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; SI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; SI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; SI: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; SI: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; SI: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; SI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; SI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; SI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; SI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; SI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; SI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; SI: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; SI: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; SI: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; SI: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; SI: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; SI: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; SI: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; SI: [[BUILD_VECTOR4:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY17]](s32), [[COPY18]](s32), [[COPY19]](s32), [[COPY20]](s32)
+    ; SI: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR4]](<4 x s32>)
+    ; SI: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; SI: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; SI: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; SI: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; SI: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; SI: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; SI: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; SI: [[BUILD_VECTOR5:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY21]](s32), [[COPY22]](s32), [[COPY23]](s32), [[COPY24]](s32)
+    ; SI: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR5]](<4 x s32>)
+    ; SI: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C]](s32)
+    ; SI: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; SI: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; SI: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; SI: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; SI: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; SI: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; SI: [[BUILD_VECTOR6:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY25]](s32), [[COPY26]](s32), [[COPY27]](s32), [[COPY28]](s32)
+    ; SI: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR6]](<4 x s32>)
+    ; SI: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C]](s32)
+    ; SI: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; SI: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; SI: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; SI: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; SI: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; SI: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; SI: [[BUILD_VECTOR7:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY29]](s32), [[COPY30]](s32), [[COPY31]](s32), [[COPY32]](s32)
+    ; SI: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR7]](<4 x s32>)
+    ; SI: [[CONCAT_VECTORS:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; SI: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS]](<32 x s8>)
     ; CI-HSA-LABEL: name: test_load_global_v32s8_align32
     ; CI-HSA: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; CI-HSA: [[LOAD:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[COPY]](p1) :: (load 32, addrspace 1)
-    ; CI-HSA: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[LOAD]](<8 x s32>)
-    ; CI-HSA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; CI-HSA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<8 x s32>)
+    ; CI-HSA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-HSA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI-HSA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-HSA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-HSA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-HSA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-HSA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-HSA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-HSA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-HSA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-HSA: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-HSA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-HSA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI-HSA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-HSA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-HSA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-HSA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-HSA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-HSA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-HSA: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-HSA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-HSA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CI-HSA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CI-HSA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CI-HSA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CI-HSA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CI-HSA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CI-HSA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; CI-HSA: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI-HSA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI-HSA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CI-HSA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CI-HSA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CI-HSA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CI-HSA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; CI-HSA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; CI-HSA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; CI-HSA: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI-HSA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI-HSA: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; CI-HSA: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; CI-HSA: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; CI-HSA: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; CI-HSA: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; CI-HSA: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; CI-HSA: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; CI-HSA: [[BUILD_VECTOR4:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY17]](s32), [[COPY18]](s32), [[COPY19]](s32), [[COPY20]](s32)
+    ; CI-HSA: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR4]](<4 x s32>)
+    ; CI-HSA: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; CI-HSA: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; CI-HSA: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; CI-HSA: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; CI-HSA: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; CI-HSA: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; CI-HSA: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; CI-HSA: [[BUILD_VECTOR5:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY21]](s32), [[COPY22]](s32), [[COPY23]](s32), [[COPY24]](s32)
+    ; CI-HSA: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR5]](<4 x s32>)
+    ; CI-HSA: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C]](s32)
+    ; CI-HSA: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; CI-HSA: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; CI-HSA: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; CI-HSA: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; CI-HSA: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; CI-HSA: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; CI-HSA: [[BUILD_VECTOR6:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY25]](s32), [[COPY26]](s32), [[COPY27]](s32), [[COPY28]](s32)
+    ; CI-HSA: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR6]](<4 x s32>)
+    ; CI-HSA: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C]](s32)
+    ; CI-HSA: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; CI-HSA: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; CI-HSA: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; CI-HSA: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; CI-HSA: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; CI-HSA: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; CI-HSA: [[BUILD_VECTOR7:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY29]](s32), [[COPY30]](s32), [[COPY31]](s32), [[COPY32]](s32)
+    ; CI-HSA: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR7]](<4 x s32>)
+    ; CI-HSA: [[CONCAT_VECTORS:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; CI-HSA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS]](<32 x s8>)
     ; CI-MESA-LABEL: name: test_load_global_v32s8_align32
     ; CI-MESA: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; CI-MESA: [[LOAD:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[COPY]](p1) :: (load 32, addrspace 1)
-    ; CI-MESA: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[LOAD]](<8 x s32>)
-    ; CI-MESA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; CI-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<8 x s32>)
+    ; CI-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-MESA: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-MESA: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-MESA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; CI-MESA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; CI-MESA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; CI-MESA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; CI-MESA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; CI-MESA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; CI-MESA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; CI-MESA: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI-MESA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI-MESA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CI-MESA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; CI-MESA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; CI-MESA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; CI-MESA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; CI-MESA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; CI-MESA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; CI-MESA: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI-MESA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI-MESA: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; CI-MESA: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; CI-MESA: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; CI-MESA: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; CI-MESA: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; CI-MESA: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; CI-MESA: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; CI-MESA: [[BUILD_VECTOR4:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY17]](s32), [[COPY18]](s32), [[COPY19]](s32), [[COPY20]](s32)
+    ; CI-MESA: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR4]](<4 x s32>)
+    ; CI-MESA: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; CI-MESA: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; CI-MESA: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; CI-MESA: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; CI-MESA: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; CI-MESA: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; CI-MESA: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; CI-MESA: [[BUILD_VECTOR5:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY21]](s32), [[COPY22]](s32), [[COPY23]](s32), [[COPY24]](s32)
+    ; CI-MESA: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR5]](<4 x s32>)
+    ; CI-MESA: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C]](s32)
+    ; CI-MESA: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; CI-MESA: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; CI-MESA: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; CI-MESA: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; CI-MESA: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; CI-MESA: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; CI-MESA: [[BUILD_VECTOR6:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY25]](s32), [[COPY26]](s32), [[COPY27]](s32), [[COPY28]](s32)
+    ; CI-MESA: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR6]](<4 x s32>)
+    ; CI-MESA: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C]](s32)
+    ; CI-MESA: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; CI-MESA: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; CI-MESA: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; CI-MESA: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; CI-MESA: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; CI-MESA: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; CI-MESA: [[BUILD_VECTOR7:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY29]](s32), [[COPY30]](s32), [[COPY31]](s32), [[COPY32]](s32)
+    ; CI-MESA: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR7]](<4 x s32>)
+    ; CI-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; CI-MESA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS]](<32 x s8>)
     ; VI-LABEL: name: test_load_global_v32s8_align32
     ; VI: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; VI: [[LOAD:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[COPY]](p1) :: (load 32, addrspace 1)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[LOAD]](<8 x s32>)
-    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; VI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<8 x s32>)
+    ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; VI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; VI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; VI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; VI: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; VI: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; VI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; VI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; VI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; VI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; VI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; VI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; VI: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; VI: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; VI: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; VI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; VI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; VI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; VI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; VI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; VI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; VI: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; VI: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; VI: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; VI: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; VI: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; VI: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; VI: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; VI: [[BUILD_VECTOR4:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY17]](s32), [[COPY18]](s32), [[COPY19]](s32), [[COPY20]](s32)
+    ; VI: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR4]](<4 x s32>)
+    ; VI: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; VI: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; VI: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; VI: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; VI: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; VI: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; VI: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; VI: [[BUILD_VECTOR5:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY21]](s32), [[COPY22]](s32), [[COPY23]](s32), [[COPY24]](s32)
+    ; VI: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR5]](<4 x s32>)
+    ; VI: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C]](s32)
+    ; VI: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; VI: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; VI: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; VI: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; VI: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; VI: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; VI: [[BUILD_VECTOR6:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY25]](s32), [[COPY26]](s32), [[COPY27]](s32), [[COPY28]](s32)
+    ; VI: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR6]](<4 x s32>)
+    ; VI: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C]](s32)
+    ; VI: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; VI: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; VI: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; VI: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; VI: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; VI: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; VI: [[BUILD_VECTOR7:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY29]](s32), [[COPY30]](s32), [[COPY31]](s32), [[COPY32]](s32)
+    ; VI: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR7]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS]](<32 x s8>)
     ; GFX9-HSA-LABEL: name: test_load_global_v32s8_align32
     ; GFX9-HSA: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; GFX9-HSA: [[LOAD:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[COPY]](p1) :: (load 32, addrspace 1)
-    ; GFX9-HSA: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[LOAD]](<8 x s32>)
-    ; GFX9-HSA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; GFX9-HSA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<8 x s32>)
+    ; GFX9-HSA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9-HSA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9-HSA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9-HSA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9-HSA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9-HSA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9-HSA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9-HSA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9-HSA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9-HSA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9-HSA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9-HSA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9-HSA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9-HSA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9-HSA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9-HSA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; GFX9-HSA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; GFX9-HSA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; GFX9-HSA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9-HSA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; GFX9-HSA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9-HSA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; GFX9-HSA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; GFX9-HSA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; GFX9-HSA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9-HSA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; GFX9-HSA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9-HSA: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; GFX9-HSA: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; GFX9-HSA: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; GFX9-HSA: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC8:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY17]](s32), [[COPY18]](s32)
+    ; GFX9-HSA: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; GFX9-HSA: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC9:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY19]](s32), [[COPY20]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS4:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC8]](<2 x s16>), [[BUILD_VECTOR_TRUNC9]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS4]](<4 x s16>)
+    ; GFX9-HSA: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; GFX9-HSA: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; GFX9-HSA: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; GFX9-HSA: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC10:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY21]](s32), [[COPY22]](s32)
+    ; GFX9-HSA: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; GFX9-HSA: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC11:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY23]](s32), [[COPY24]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS5:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC10]](<2 x s16>), [[BUILD_VECTOR_TRUNC11]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS5]](<4 x s16>)
+    ; GFX9-HSA: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C]](s32)
+    ; GFX9-HSA: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; GFX9-HSA: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; GFX9-HSA: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC12:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY25]](s32), [[COPY26]](s32)
+    ; GFX9-HSA: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; GFX9-HSA: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC13:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY27]](s32), [[COPY28]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS6:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC12]](<2 x s16>), [[BUILD_VECTOR_TRUNC13]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS6]](<4 x s16>)
+    ; GFX9-HSA: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C]](s32)
+    ; GFX9-HSA: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; GFX9-HSA: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; GFX9-HSA: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; GFX9-HSA: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC14:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY29]](s32), [[COPY30]](s32)
+    ; GFX9-HSA: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; GFX9-HSA: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; GFX9-HSA: [[BUILD_VECTOR_TRUNC15:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY31]](s32), [[COPY32]](s32)
+    ; GFX9-HSA: [[CONCAT_VECTORS7:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC14]](<2 x s16>), [[BUILD_VECTOR_TRUNC15]](<2 x s16>)
+    ; GFX9-HSA: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS7]](<4 x s16>)
+    ; GFX9-HSA: [[CONCAT_VECTORS8:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; GFX9-HSA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS8]](<32 x s8>)
     ; GFX9-MESA-LABEL: name: test_load_global_v32s8_align32
     ; GFX9-MESA: [[COPY:%[0-9]+]]:_(p1) = COPY $vgpr0_vgpr1
     ; GFX9-MESA: [[LOAD:%[0-9]+]]:_(<8 x s32>) = G_LOAD [[COPY]](p1) :: (load 32, addrspace 1)
-    ; GFX9-MESA: [[BITCAST:%[0-9]+]]:_(<32 x s8>) = G_BITCAST [[LOAD]](<8 x s32>)
-    ; GFX9-MESA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[BITCAST]](<32 x s8>)
+    ; GFX9-MESA: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32), [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32), [[UV6:%[0-9]+]]:_(s32), [[UV7:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<8 x s32>)
+    ; GFX9-MESA: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9-MESA: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9-MESA: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9-MESA: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9-MESA: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9-MESA: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9-MESA: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9-MESA: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9-MESA: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9-MESA: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9-MESA: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9-MESA: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[UV2]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY9:%[0-9]+]]:_(s32) = COPY [[UV2]](s32)
+    ; GFX9-MESA: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LSHR6]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9-MESA: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LSHR7]](s32)
+    ; GFX9-MESA: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LSHR8]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR10:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR11:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY13:%[0-9]+]]:_(s32) = COPY [[UV3]](s32)
+    ; GFX9-MESA: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LSHR9]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9-MESA: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LSHR10]](s32)
+    ; GFX9-MESA: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LSHR11]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR12:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR13:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR14:%[0-9]+]]:_(s32) = G_LSHR [[UV4]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY17:%[0-9]+]]:_(s32) = COPY [[UV4]](s32)
+    ; GFX9-MESA: [[COPY18:%[0-9]+]]:_(s32) = COPY [[LSHR12]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC8:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY17]](s32), [[COPY18]](s32)
+    ; GFX9-MESA: [[COPY19:%[0-9]+]]:_(s32) = COPY [[LSHR13]](s32)
+    ; GFX9-MESA: [[COPY20:%[0-9]+]]:_(s32) = COPY [[LSHR14]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC9:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY19]](s32), [[COPY20]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS4:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC8]](<2 x s16>), [[BUILD_VECTOR_TRUNC9]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC4:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS4]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR15:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR16:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR17:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY21:%[0-9]+]]:_(s32) = COPY [[UV5]](s32)
+    ; GFX9-MESA: [[COPY22:%[0-9]+]]:_(s32) = COPY [[LSHR15]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC10:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY21]](s32), [[COPY22]](s32)
+    ; GFX9-MESA: [[COPY23:%[0-9]+]]:_(s32) = COPY [[LSHR16]](s32)
+    ; GFX9-MESA: [[COPY24:%[0-9]+]]:_(s32) = COPY [[LSHR17]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC11:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY23]](s32), [[COPY24]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS5:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC10]](<2 x s16>), [[BUILD_VECTOR_TRUNC11]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC5:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS5]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR18:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR19:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR20:%[0-9]+]]:_(s32) = G_LSHR [[UV6]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY25:%[0-9]+]]:_(s32) = COPY [[UV6]](s32)
+    ; GFX9-MESA: [[COPY26:%[0-9]+]]:_(s32) = COPY [[LSHR18]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC12:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY25]](s32), [[COPY26]](s32)
+    ; GFX9-MESA: [[COPY27:%[0-9]+]]:_(s32) = COPY [[LSHR19]](s32)
+    ; GFX9-MESA: [[COPY28:%[0-9]+]]:_(s32) = COPY [[LSHR20]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC13:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY27]](s32), [[COPY28]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS6:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC12]](<2 x s16>), [[BUILD_VECTOR_TRUNC13]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC6:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS6]](<4 x s16>)
+    ; GFX9-MESA: [[LSHR21:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C]](s32)
+    ; GFX9-MESA: [[LSHR22:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C1]](s32)
+    ; GFX9-MESA: [[LSHR23:%[0-9]+]]:_(s32) = G_LSHR [[UV7]], [[C2]](s32)
+    ; GFX9-MESA: [[COPY29:%[0-9]+]]:_(s32) = COPY [[UV7]](s32)
+    ; GFX9-MESA: [[COPY30:%[0-9]+]]:_(s32) = COPY [[LSHR21]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC14:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY29]](s32), [[COPY30]](s32)
+    ; GFX9-MESA: [[COPY31:%[0-9]+]]:_(s32) = COPY [[LSHR22]](s32)
+    ; GFX9-MESA: [[COPY32:%[0-9]+]]:_(s32) = COPY [[LSHR23]](s32)
+    ; GFX9-MESA: [[BUILD_VECTOR_TRUNC15:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY31]](s32), [[COPY32]](s32)
+    ; GFX9-MESA: [[CONCAT_VECTORS7:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC14]](<2 x s16>), [[BUILD_VECTOR_TRUNC15]](<2 x s16>)
+    ; GFX9-MESA: [[TRUNC7:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS7]](<4 x s16>)
+    ; GFX9-MESA: [[CONCAT_VECTORS8:%[0-9]+]]:_(<32 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>), [[TRUNC4]](<4 x s8>), [[TRUNC5]](<4 x s8>), [[TRUNC6]](<4 x s8>), [[TRUNC7]](<4 x s8>)
+    ; GFX9-MESA: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY [[CONCAT_VECTORS8]](<32 x s8>)
     %0:_(p1) = COPY $vgpr0_vgpr1
     %1:_(<32 x s8>) = G_LOAD %0 :: (load 32, align 32, addrspace 1)
     $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7 = COPY %1

diff  --git a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-local.mir b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-local.mir
index 0164bcc2ca73..03065bdc045f 100644
--- a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-local.mir
+++ b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-local.mir
@@ -5654,28 +5654,142 @@ body: |
     ; SI-LABEL: name: test_load_local_v8s8_align8
     ; SI: [[COPY:%[0-9]+]]:_(p3) = COPY $vgpr0
     ; SI: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p3) :: (load 8, addrspace 3)
-    ; SI: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; SI: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; SI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; SI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; SI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; SI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; SI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; SI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; SI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; SI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; SI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; SI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; SI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; SI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; SI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; SI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; SI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; SI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; SI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; SI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; SI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; SI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; SI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; SI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; SI: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; CI-LABEL: name: test_load_local_v8s8_align8
     ; CI: [[COPY:%[0-9]+]]:_(p3) = COPY $vgpr0
     ; CI: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p3) :: (load 8, addrspace 3)
-    ; CI: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; CI: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; CI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; CI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; CI: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; CI-DS128-LABEL: name: test_load_local_v8s8_align8
     ; CI-DS128: [[COPY:%[0-9]+]]:_(p3) = COPY $vgpr0
     ; CI-DS128: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p3) :: (load 8, addrspace 3)
-    ; CI-DS128: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; CI-DS128: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; CI-DS128: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; CI-DS128: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI-DS128: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; CI-DS128: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI-DS128: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; CI-DS128: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI-DS128: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; CI-DS128: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; CI-DS128: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI-DS128: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI-DS128: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI-DS128: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-DS128: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-DS128: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CI-DS128: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; CI-DS128: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; CI-DS128: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; CI-DS128: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI-DS128: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI-DS128: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI-DS128: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-DS128: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-DS128: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; CI-DS128: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; VI-LABEL: name: test_load_local_v8s8_align8
     ; VI: [[COPY:%[0-9]+]]:_(p3) = COPY $vgpr0
     ; VI: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p3) :: (load 8, addrspace 3)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; VI: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; VI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; VI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; VI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; VI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; GFX9-LABEL: name: test_load_local_v8s8_align8
     ; GFX9: [[COPY:%[0-9]+]]:_(p3) = COPY $vgpr0
     ; GFX9: [[LOAD:%[0-9]+]]:_(<2 x s32>) = G_LOAD [[COPY]](p3) :: (load 8, addrspace 3)
-    ; GFX9: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[LOAD]](<2 x s32>)
-    ; GFX9: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[LOAD]](<2 x s32>)
+    ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C]](s32)
+    ; GFX9: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C1]](s32)
+    ; GFX9: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[UV]], [[C2]](s32)
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY [[UV]](s32)
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; GFX9: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C1]](s32)
+    ; GFX9: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C2]](s32)
+    ; GFX9: [[COPY5:%[0-9]+]]:_(s32) = COPY [[UV1]](s32)
+    ; GFX9: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9: [[CONCAT_VECTORS2:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; GFX9: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS2]](<8 x s8>)
     %0:_(p3) = COPY $vgpr0
     %1:_(<8 x s8>) = G_LOAD %0 :: (load 8, align 8, addrspace 3)
     $vgpr0_vgpr1 = COPY %1
@@ -5690,315 +5804,334 @@ body: |
     ; SI-LABEL: name: test_load_local_v16s8_align16
     ; SI: [[COPY:%[0-9]+]]:_(p3) = COPY $vgpr0
     ; SI: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p3) :: (load 1, addrspace 3)
-    ; SI: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD]](s32)
     ; SI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
     ; SI: [[PTR_ADD:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; SI: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p3) :: (load 1 + 1, addrspace 3)
-    ; SI: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD1]](s32)
     ; SI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
     ; SI: [[PTR_ADD1:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C1]](s32)
     ; SI: [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p3) :: (load 1 + 2, addrspace 3)
-    ; SI: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD2]](s32)
     ; SI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
     ; SI: [[PTR_ADD2:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C2]](s32)
     ; SI: [[LOAD3:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD2]](p3) :: (load 1 + 3, addrspace 3)
-    ; SI: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD3]](s32)
-    ; SI: [[MV:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8)
     ; SI: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; SI: [[PTR_ADD3:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C3]](s32)
     ; SI: [[LOAD4:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD3]](p3) :: (load 1 + 4, addrspace 3)
-    ; SI: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD4]](s32)
     ; SI: [[PTR_ADD4:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C]](s32)
     ; SI: [[LOAD5:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD4]](p3) :: (load 1 + 5, addrspace 3)
-    ; SI: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD5]](s32)
     ; SI: [[PTR_ADD5:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C1]](s32)
     ; SI: [[LOAD6:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD5]](p3) :: (load 1 + 6, addrspace 3)
-    ; SI: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD6]](s32)
     ; SI: [[PTR_ADD6:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C2]](s32)
     ; SI: [[LOAD7:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD6]](p3) :: (load 1 + 7, addrspace 3)
-    ; SI: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD7]](s32)
-    ; SI: [[MV1:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8)
-    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[MV]](s32), [[MV1]](s32)
     ; SI: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
     ; SI: [[PTR_ADD7:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C4]](s32)
     ; SI: [[LOAD8:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD7]](p3) :: (load 1 + 8, addrspace 3)
-    ; SI: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD8]](s32)
     ; SI: [[PTR_ADD8:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C]](s32)
     ; SI: [[LOAD9:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD8]](p3) :: (load 1 + 9, addrspace 3)
-    ; SI: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD9]](s32)
     ; SI: [[PTR_ADD9:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C1]](s32)
     ; SI: [[LOAD10:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD9]](p3) :: (load 1 + 10, addrspace 3)
-    ; SI: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD10]](s32)
     ; SI: [[PTR_ADD10:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C2]](s32)
     ; SI: [[LOAD11:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD10]](p3) :: (load 1 + 11, addrspace 3)
-    ; SI: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD11]](s32)
-    ; SI: [[MV2:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8)
     ; SI: [[PTR_ADD11:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C3]](s32)
     ; SI: [[LOAD12:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD11]](p3) :: (load 1 + 12, addrspace 3)
-    ; SI: [[TRUNC12:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD12]](s32)
     ; SI: [[PTR_ADD12:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C]](s32)
     ; SI: [[LOAD13:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD12]](p3) :: (load 1 + 13, addrspace 3)
-    ; SI: [[TRUNC13:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD13]](s32)
     ; SI: [[PTR_ADD13:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C1]](s32)
     ; SI: [[LOAD14:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD13]](p3) :: (load 1 + 14, addrspace 3)
-    ; SI: [[TRUNC14:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD14]](s32)
     ; SI: [[PTR_ADD14:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C2]](s32)
     ; SI: [[LOAD15:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD14]](p3) :: (load 1 + 15, addrspace 3)
-    ; SI: [[TRUNC15:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD15]](s32)
-    ; SI: [[MV3:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC12]](s8), [[TRUNC13]](s8), [[TRUNC14]](s8), [[TRUNC15]](s8)
-    ; SI: [[BUILD_VECTOR1:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[MV2]](s32), [[MV3]](s32)
-    ; SI: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s32>) = G_CONCAT_VECTORS [[BUILD_VECTOR]](<2 x s32>), [[BUILD_VECTOR1]](<2 x s32>)
-    ; SI: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[CONCAT_VECTORS]](<4 x s32>)
-    ; SI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; SI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; SI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; SI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LOAD2]](s32)
+    ; SI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LOAD3]](s32)
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; SI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; SI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD4]](s32)
+    ; SI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LOAD5]](s32)
+    ; SI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LOAD6]](s32)
+    ; SI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LOAD7]](s32)
+    ; SI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; SI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; SI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[LOAD8]](s32)
+    ; SI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LOAD9]](s32)
+    ; SI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LOAD10]](s32)
+    ; SI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LOAD11]](s32)
+    ; SI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; SI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; SI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[LOAD12]](s32)
+    ; SI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LOAD13]](s32)
+    ; SI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LOAD14]](s32)
+    ; SI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LOAD15]](s32)
+    ; SI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; SI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; SI: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; SI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; CI-LABEL: name: test_load_local_v16s8_align16
     ; CI: [[COPY:%[0-9]+]]:_(p3) = COPY $vgpr0
     ; CI: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p3) :: (load 1, addrspace 3)
-    ; CI: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD]](s32)
     ; CI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
     ; CI: [[PTR_ADD:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; CI: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p3) :: (load 1 + 1, addrspace 3)
-    ; CI: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD1]](s32)
     ; CI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
     ; CI: [[PTR_ADD1:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C1]](s32)
     ; CI: [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p3) :: (load 1 + 2, addrspace 3)
-    ; CI: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD2]](s32)
     ; CI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
     ; CI: [[PTR_ADD2:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C2]](s32)
     ; CI: [[LOAD3:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD2]](p3) :: (load 1 + 3, addrspace 3)
-    ; CI: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD3]](s32)
-    ; CI: [[MV:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8)
     ; CI: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; CI: [[PTR_ADD3:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C3]](s32)
     ; CI: [[LOAD4:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD3]](p3) :: (load 1 + 4, addrspace 3)
-    ; CI: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD4]](s32)
     ; CI: [[PTR_ADD4:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C]](s32)
     ; CI: [[LOAD5:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD4]](p3) :: (load 1 + 5, addrspace 3)
-    ; CI: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD5]](s32)
     ; CI: [[PTR_ADD5:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C1]](s32)
     ; CI: [[LOAD6:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD5]](p3) :: (load 1 + 6, addrspace 3)
-    ; CI: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD6]](s32)
     ; CI: [[PTR_ADD6:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C2]](s32)
     ; CI: [[LOAD7:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD6]](p3) :: (load 1 + 7, addrspace 3)
-    ; CI: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD7]](s32)
-    ; CI: [[MV1:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8)
-    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[MV]](s32), [[MV1]](s32)
     ; CI: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
     ; CI: [[PTR_ADD7:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C4]](s32)
     ; CI: [[LOAD8:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD7]](p3) :: (load 1 + 8, addrspace 3)
-    ; CI: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD8]](s32)
     ; CI: [[PTR_ADD8:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C]](s32)
     ; CI: [[LOAD9:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD8]](p3) :: (load 1 + 9, addrspace 3)
-    ; CI: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD9]](s32)
     ; CI: [[PTR_ADD9:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C1]](s32)
     ; CI: [[LOAD10:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD9]](p3) :: (load 1 + 10, addrspace 3)
-    ; CI: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD10]](s32)
     ; CI: [[PTR_ADD10:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C2]](s32)
     ; CI: [[LOAD11:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD10]](p3) :: (load 1 + 11, addrspace 3)
-    ; CI: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD11]](s32)
-    ; CI: [[MV2:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8)
     ; CI: [[PTR_ADD11:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C3]](s32)
     ; CI: [[LOAD12:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD11]](p3) :: (load 1 + 12, addrspace 3)
-    ; CI: [[TRUNC12:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD12]](s32)
     ; CI: [[PTR_ADD12:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C]](s32)
     ; CI: [[LOAD13:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD12]](p3) :: (load 1 + 13, addrspace 3)
-    ; CI: [[TRUNC13:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD13]](s32)
     ; CI: [[PTR_ADD13:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C1]](s32)
     ; CI: [[LOAD14:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD13]](p3) :: (load 1 + 14, addrspace 3)
-    ; CI: [[TRUNC14:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD14]](s32)
     ; CI: [[PTR_ADD14:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C2]](s32)
     ; CI: [[LOAD15:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD14]](p3) :: (load 1 + 15, addrspace 3)
-    ; CI: [[TRUNC15:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD15]](s32)
-    ; CI: [[MV3:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC12]](s8), [[TRUNC13]](s8), [[TRUNC14]](s8), [[TRUNC15]](s8)
-    ; CI: [[BUILD_VECTOR1:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[MV2]](s32), [[MV3]](s32)
-    ; CI: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s32>) = G_CONCAT_VECTORS [[BUILD_VECTOR]](<2 x s32>), [[BUILD_VECTOR1]](<2 x s32>)
-    ; CI: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[CONCAT_VECTORS]](<4 x s32>)
-    ; CI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; CI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LOAD2]](s32)
+    ; CI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LOAD3]](s32)
+    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD4]](s32)
+    ; CI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LOAD5]](s32)
+    ; CI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LOAD6]](s32)
+    ; CI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LOAD7]](s32)
+    ; CI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[LOAD8]](s32)
+    ; CI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LOAD9]](s32)
+    ; CI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LOAD10]](s32)
+    ; CI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LOAD11]](s32)
+    ; CI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[LOAD12]](s32)
+    ; CI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LOAD13]](s32)
+    ; CI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LOAD14]](s32)
+    ; CI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LOAD15]](s32)
+    ; CI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; CI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; CI-DS128-LABEL: name: test_load_local_v16s8_align16
     ; CI-DS128: [[COPY:%[0-9]+]]:_(p3) = COPY $vgpr0
     ; CI-DS128: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p3) :: (load 1, addrspace 3)
-    ; CI-DS128: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD]](s32)
     ; CI-DS128: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
     ; CI-DS128: [[PTR_ADD:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; CI-DS128: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p3) :: (load 1 + 1, addrspace 3)
-    ; CI-DS128: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD1]](s32)
     ; CI-DS128: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
     ; CI-DS128: [[PTR_ADD1:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C1]](s32)
     ; CI-DS128: [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p3) :: (load 1 + 2, addrspace 3)
-    ; CI-DS128: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD2]](s32)
     ; CI-DS128: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
     ; CI-DS128: [[PTR_ADD2:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C2]](s32)
     ; CI-DS128: [[LOAD3:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD2]](p3) :: (load 1 + 3, addrspace 3)
-    ; CI-DS128: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD3]](s32)
-    ; CI-DS128: [[MV:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8)
     ; CI-DS128: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; CI-DS128: [[PTR_ADD3:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C3]](s32)
     ; CI-DS128: [[LOAD4:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD3]](p3) :: (load 1 + 4, addrspace 3)
-    ; CI-DS128: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD4]](s32)
     ; CI-DS128: [[PTR_ADD4:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C]](s32)
     ; CI-DS128: [[LOAD5:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD4]](p3) :: (load 1 + 5, addrspace 3)
-    ; CI-DS128: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD5]](s32)
     ; CI-DS128: [[PTR_ADD5:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C1]](s32)
     ; CI-DS128: [[LOAD6:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD5]](p3) :: (load 1 + 6, addrspace 3)
-    ; CI-DS128: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD6]](s32)
     ; CI-DS128: [[PTR_ADD6:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C2]](s32)
     ; CI-DS128: [[LOAD7:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD6]](p3) :: (load 1 + 7, addrspace 3)
-    ; CI-DS128: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD7]](s32)
-    ; CI-DS128: [[MV1:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8)
     ; CI-DS128: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
     ; CI-DS128: [[PTR_ADD7:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C4]](s32)
     ; CI-DS128: [[LOAD8:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD7]](p3) :: (load 1 + 8, addrspace 3)
-    ; CI-DS128: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD8]](s32)
     ; CI-DS128: [[PTR_ADD8:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C]](s32)
     ; CI-DS128: [[LOAD9:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD8]](p3) :: (load 1 + 9, addrspace 3)
-    ; CI-DS128: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD9]](s32)
     ; CI-DS128: [[PTR_ADD9:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C1]](s32)
     ; CI-DS128: [[LOAD10:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD9]](p3) :: (load 1 + 10, addrspace 3)
-    ; CI-DS128: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD10]](s32)
     ; CI-DS128: [[PTR_ADD10:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C2]](s32)
     ; CI-DS128: [[LOAD11:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD10]](p3) :: (load 1 + 11, addrspace 3)
-    ; CI-DS128: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD11]](s32)
-    ; CI-DS128: [[MV2:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8)
     ; CI-DS128: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
     ; CI-DS128: [[PTR_ADD11:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C5]](s32)
     ; CI-DS128: [[LOAD12:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD11]](p3) :: (load 1 + 12, addrspace 3)
-    ; CI-DS128: [[TRUNC12:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD12]](s32)
     ; CI-DS128: [[PTR_ADD12:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C]](s32)
     ; CI-DS128: [[LOAD13:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD12]](p3) :: (load 1 + 13, addrspace 3)
-    ; CI-DS128: [[TRUNC13:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD13]](s32)
     ; CI-DS128: [[PTR_ADD13:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C1]](s32)
     ; CI-DS128: [[LOAD14:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD13]](p3) :: (load 1 + 14, addrspace 3)
-    ; CI-DS128: [[TRUNC14:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD14]](s32)
     ; CI-DS128: [[PTR_ADD14:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C2]](s32)
     ; CI-DS128: [[LOAD15:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD14]](p3) :: (load 1 + 15, addrspace 3)
-    ; CI-DS128: [[TRUNC15:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD15]](s32)
-    ; CI-DS128: [[MV3:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC12]](s8), [[TRUNC13]](s8), [[TRUNC14]](s8), [[TRUNC15]](s8)
-    ; CI-DS128: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[MV]](s32), [[MV1]](s32), [[MV2]](s32), [[MV3]](s32)
-    ; CI-DS128: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[BUILD_VECTOR]](<4 x s32>)
-    ; CI-DS128: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; CI-DS128: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; CI-DS128: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; CI-DS128: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LOAD2]](s32)
+    ; CI-DS128: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LOAD3]](s32)
+    ; CI-DS128: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI-DS128: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI-DS128: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD4]](s32)
+    ; CI-DS128: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LOAD5]](s32)
+    ; CI-DS128: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LOAD6]](s32)
+    ; CI-DS128: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LOAD7]](s32)
+    ; CI-DS128: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI-DS128: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI-DS128: [[COPY9:%[0-9]+]]:_(s32) = COPY [[LOAD8]](s32)
+    ; CI-DS128: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LOAD9]](s32)
+    ; CI-DS128: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LOAD10]](s32)
+    ; CI-DS128: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LOAD11]](s32)
+    ; CI-DS128: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI-DS128: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI-DS128: [[COPY13:%[0-9]+]]:_(s32) = COPY [[LOAD12]](s32)
+    ; CI-DS128: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LOAD13]](s32)
+    ; CI-DS128: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LOAD14]](s32)
+    ; CI-DS128: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LOAD15]](s32)
+    ; CI-DS128: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI-DS128: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI-DS128: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; CI-DS128: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; VI-LABEL: name: test_load_local_v16s8_align16
     ; VI: [[COPY:%[0-9]+]]:_(p3) = COPY $vgpr0
     ; VI: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p3) :: (load 1, addrspace 3)
-    ; VI: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD]](s32)
     ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
     ; VI: [[PTR_ADD:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; VI: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p3) :: (load 1 + 1, addrspace 3)
-    ; VI: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD1]](s32)
     ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
     ; VI: [[PTR_ADD1:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C1]](s32)
     ; VI: [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p3) :: (load 1 + 2, addrspace 3)
-    ; VI: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD2]](s32)
     ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
     ; VI: [[PTR_ADD2:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C2]](s32)
     ; VI: [[LOAD3:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD2]](p3) :: (load 1 + 3, addrspace 3)
-    ; VI: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD3]](s32)
-    ; VI: [[MV:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8)
     ; VI: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; VI: [[PTR_ADD3:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C3]](s32)
     ; VI: [[LOAD4:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD3]](p3) :: (load 1 + 4, addrspace 3)
-    ; VI: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD4]](s32)
     ; VI: [[PTR_ADD4:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C]](s32)
     ; VI: [[LOAD5:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD4]](p3) :: (load 1 + 5, addrspace 3)
-    ; VI: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD5]](s32)
     ; VI: [[PTR_ADD5:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C1]](s32)
     ; VI: [[LOAD6:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD5]](p3) :: (load 1 + 6, addrspace 3)
-    ; VI: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD6]](s32)
     ; VI: [[PTR_ADD6:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C2]](s32)
     ; VI: [[LOAD7:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD6]](p3) :: (load 1 + 7, addrspace 3)
-    ; VI: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD7]](s32)
-    ; VI: [[MV1:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8)
     ; VI: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
     ; VI: [[PTR_ADD7:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C4]](s32)
     ; VI: [[LOAD8:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD7]](p3) :: (load 1 + 8, addrspace 3)
-    ; VI: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD8]](s32)
     ; VI: [[PTR_ADD8:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C]](s32)
     ; VI: [[LOAD9:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD8]](p3) :: (load 1 + 9, addrspace 3)
-    ; VI: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD9]](s32)
     ; VI: [[PTR_ADD9:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C1]](s32)
     ; VI: [[LOAD10:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD9]](p3) :: (load 1 + 10, addrspace 3)
-    ; VI: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD10]](s32)
     ; VI: [[PTR_ADD10:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C2]](s32)
     ; VI: [[LOAD11:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD10]](p3) :: (load 1 + 11, addrspace 3)
-    ; VI: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD11]](s32)
-    ; VI: [[MV2:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8)
     ; VI: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
     ; VI: [[PTR_ADD11:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C5]](s32)
     ; VI: [[LOAD12:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD11]](p3) :: (load 1 + 12, addrspace 3)
-    ; VI: [[TRUNC12:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD12]](s32)
     ; VI: [[PTR_ADD12:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C]](s32)
     ; VI: [[LOAD13:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD12]](p3) :: (load 1 + 13, addrspace 3)
-    ; VI: [[TRUNC13:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD13]](s32)
     ; VI: [[PTR_ADD13:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C1]](s32)
     ; VI: [[LOAD14:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD13]](p3) :: (load 1 + 14, addrspace 3)
-    ; VI: [[TRUNC14:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD14]](s32)
     ; VI: [[PTR_ADD14:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C2]](s32)
     ; VI: [[LOAD15:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD14]](p3) :: (load 1 + 15, addrspace 3)
-    ; VI: [[TRUNC15:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD15]](s32)
-    ; VI: [[MV3:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC12]](s8), [[TRUNC13]](s8), [[TRUNC14]](s8), [[TRUNC15]](s8)
-    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[MV]](s32), [[MV1]](s32), [[MV2]](s32), [[MV3]](s32)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[BUILD_VECTOR]](<4 x s32>)
-    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LOAD2]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LOAD3]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD4]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LOAD5]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LOAD6]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LOAD7]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[LOAD8]](s32)
+    ; VI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LOAD9]](s32)
+    ; VI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LOAD10]](s32)
+    ; VI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LOAD11]](s32)
+    ; VI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; VI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; VI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[LOAD12]](s32)
+    ; VI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LOAD13]](s32)
+    ; VI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LOAD14]](s32)
+    ; VI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LOAD15]](s32)
+    ; VI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; VI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; GFX9-LABEL: name: test_load_local_v16s8_align16
     ; GFX9: [[COPY:%[0-9]+]]:_(p3) = COPY $vgpr0
     ; GFX9: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p3) :: (load 1, addrspace 3)
-    ; GFX9: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD]](s32)
     ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
     ; GFX9: [[PTR_ADD:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; GFX9: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p3) :: (load 1 + 1, addrspace 3)
-    ; GFX9: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD1]](s32)
     ; GFX9: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
     ; GFX9: [[PTR_ADD1:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C1]](s32)
     ; GFX9: [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p3) :: (load 1 + 2, addrspace 3)
-    ; GFX9: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD2]](s32)
     ; GFX9: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
     ; GFX9: [[PTR_ADD2:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C2]](s32)
     ; GFX9: [[LOAD3:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD2]](p3) :: (load 1 + 3, addrspace 3)
-    ; GFX9: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD3]](s32)
-    ; GFX9: [[MV:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8)
     ; GFX9: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; GFX9: [[PTR_ADD3:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C3]](s32)
     ; GFX9: [[LOAD4:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD3]](p3) :: (load 1 + 4, addrspace 3)
-    ; GFX9: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD4]](s32)
     ; GFX9: [[PTR_ADD4:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C]](s32)
     ; GFX9: [[LOAD5:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD4]](p3) :: (load 1 + 5, addrspace 3)
-    ; GFX9: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD5]](s32)
     ; GFX9: [[PTR_ADD5:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C1]](s32)
     ; GFX9: [[LOAD6:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD5]](p3) :: (load 1 + 6, addrspace 3)
-    ; GFX9: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD6]](s32)
     ; GFX9: [[PTR_ADD6:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD3]], [[C2]](s32)
     ; GFX9: [[LOAD7:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD6]](p3) :: (load 1 + 7, addrspace 3)
-    ; GFX9: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD7]](s32)
-    ; GFX9: [[MV1:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8)
     ; GFX9: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
     ; GFX9: [[PTR_ADD7:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C4]](s32)
     ; GFX9: [[LOAD8:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD7]](p3) :: (load 1 + 8, addrspace 3)
-    ; GFX9: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD8]](s32)
     ; GFX9: [[PTR_ADD8:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C]](s32)
     ; GFX9: [[LOAD9:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD8]](p3) :: (load 1 + 9, addrspace 3)
-    ; GFX9: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD9]](s32)
     ; GFX9: [[PTR_ADD9:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C1]](s32)
     ; GFX9: [[LOAD10:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD9]](p3) :: (load 1 + 10, addrspace 3)
-    ; GFX9: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD10]](s32)
     ; GFX9: [[PTR_ADD10:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD7]], [[C2]](s32)
     ; GFX9: [[LOAD11:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD10]](p3) :: (load 1 + 11, addrspace 3)
-    ; GFX9: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD11]](s32)
-    ; GFX9: [[MV2:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8)
     ; GFX9: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
     ; GFX9: [[PTR_ADD11:%[0-9]+]]:_(p3) = G_PTR_ADD [[COPY]], [[C5]](s32)
     ; GFX9: [[LOAD12:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD11]](p3) :: (load 1 + 12, addrspace 3)
-    ; GFX9: [[TRUNC12:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD12]](s32)
     ; GFX9: [[PTR_ADD12:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C]](s32)
     ; GFX9: [[LOAD13:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD12]](p3) :: (load 1 + 13, addrspace 3)
-    ; GFX9: [[TRUNC13:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD13]](s32)
     ; GFX9: [[PTR_ADD13:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C1]](s32)
     ; GFX9: [[LOAD14:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD13]](p3) :: (load 1 + 14, addrspace 3)
-    ; GFX9: [[TRUNC14:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD14]](s32)
     ; GFX9: [[PTR_ADD14:%[0-9]+]]:_(p3) = G_PTR_ADD [[PTR_ADD11]], [[C2]](s32)
     ; GFX9: [[LOAD15:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD14]](p3) :: (load 1 + 15, addrspace 3)
-    ; GFX9: [[TRUNC15:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD15]](s32)
-    ; GFX9: [[MV3:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC12]](s8), [[TRUNC13]](s8), [[TRUNC14]](s8), [[TRUNC15]](s8)
-    ; GFX9: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[MV]](s32), [[MV1]](s32), [[MV2]](s32), [[MV3]](s32)
-    ; GFX9: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[BUILD_VECTOR]](<4 x s32>)
-    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LOAD2]](s32)
+    ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LOAD3]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD4]](s32)
+    ; GFX9: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LOAD5]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LOAD6]](s32)
+    ; GFX9: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LOAD7]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9: [[COPY9:%[0-9]+]]:_(s32) = COPY [[LOAD8]](s32)
+    ; GFX9: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LOAD9]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LOAD10]](s32)
+    ; GFX9: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LOAD11]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9: [[COPY13:%[0-9]+]]:_(s32) = COPY [[LOAD12]](s32)
+    ; GFX9: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LOAD13]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LOAD14]](s32)
+    ; GFX9: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LOAD15]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9: [[CONCAT_VECTORS4:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS4]](<16 x s8>)
     %0:_(p3) = COPY $vgpr0
     %1:_(<16 x s8>) = G_LOAD %0 :: (load 16, align 1, addrspace 3)
     $vgpr0_vgpr1_vgpr2_vgpr3 = COPY %1

diff  --git a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-private.mir b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-private.mir
index 678d3bcf6d32..582f7619fda0 100644
--- a/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-private.mir
+++ b/llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-private.mir
@@ -4431,36 +4431,120 @@ body: |
     ; SI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; SI: [[PTR_ADD:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; SI: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p5) :: (load 4 + 4, addrspace 5)
-    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[LOAD]](s32), [[LOAD1]](s32)
-    ; SI: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[BUILD_VECTOR]](<2 x s32>)
-    ; SI: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; SI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; SI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[LOAD]], [[C1]](s32)
+    ; SI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; SI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[LOAD]], [[C2]](s32)
+    ; SI: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; SI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[LOAD]], [[C3]](s32)
+    ; SI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; SI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; SI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; SI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; SI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; SI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[LOAD1]], [[C1]](s32)
+    ; SI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[LOAD1]], [[C2]](s32)
+    ; SI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[LOAD1]], [[C3]](s32)
+    ; SI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; SI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; SI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; SI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; SI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; SI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; SI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; SI: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; CI-LABEL: name: test_load_private_v8s8_align8
     ; CI: [[COPY:%[0-9]+]]:_(p5) = COPY $vgpr0
     ; CI: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p5) :: (load 4, align 8, addrspace 5)
     ; CI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; CI: [[PTR_ADD:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; CI: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p5) :: (load 4 + 4, addrspace 5)
-    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[LOAD]](s32), [[LOAD1]](s32)
-    ; CI: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[BUILD_VECTOR]](<2 x s32>)
-    ; CI: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; CI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[LOAD]], [[C1]](s32)
+    ; CI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[LOAD]], [[C2]](s32)
+    ; CI: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; CI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[LOAD]], [[C3]](s32)
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; CI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; CI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[LOAD1]], [[C1]](s32)
+    ; CI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[LOAD1]], [[C2]](s32)
+    ; CI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[LOAD1]], [[C3]](s32)
+    ; CI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; CI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; CI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; CI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; CI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; CI: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; VI-LABEL: name: test_load_private_v8s8_align8
     ; VI: [[COPY:%[0-9]+]]:_(p5) = COPY $vgpr0
     ; VI: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p5) :: (load 4, align 8, addrspace 5)
     ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; VI: [[PTR_ADD:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; VI: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p5) :: (load 4 + 4, addrspace 5)
-    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[LOAD]](s32), [[LOAD1]](s32)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[BUILD_VECTOR]](<2 x s32>)
-    ; VI: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; VI: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[LOAD]], [[C1]](s32)
+    ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; VI: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[LOAD]], [[C2]](s32)
+    ; VI: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; VI: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[LOAD]], [[C3]](s32)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[LOAD1]], [[C1]](s32)
+    ; VI: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[LOAD1]], [[C2]](s32)
+    ; VI: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[LOAD1]], [[C3]](s32)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<8 x s8>)
     ; GFX9-LABEL: name: test_load_private_v8s8_align8
     ; GFX9: [[COPY:%[0-9]+]]:_(p5) = COPY $vgpr0
     ; GFX9: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p5) :: (load 4, align 8, addrspace 5)
     ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; GFX9: [[PTR_ADD:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; GFX9: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p5) :: (load 4 + 4, addrspace 5)
-    ; GFX9: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[LOAD]](s32), [[LOAD1]](s32)
-    ; GFX9: [[BITCAST:%[0-9]+]]:_(<8 x s8>) = G_BITCAST [[BUILD_VECTOR]](<2 x s32>)
-    ; GFX9: $vgpr0_vgpr1 = COPY [[BITCAST]](<8 x s8>)
+    ; GFX9: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[LOAD]], [[C1]](s32)
+    ; GFX9: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; GFX9: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[LOAD]], [[C2]](s32)
+    ; GFX9: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 24
+    ; GFX9: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[LOAD]], [[C3]](s32)
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32)
+    ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[LOAD1]], [[C1]](s32)
+    ; GFX9: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[LOAD1]], [[C2]](s32)
+    ; GFX9: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[LOAD1]], [[C3]](s32)
+    ; GFX9: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; GFX9: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LSHR3]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LSHR4]](s32)
+    ; GFX9: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LSHR5]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9: [[CONCAT_VECTORS2:%[0-9]+]]:_(<8 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>)
+    ; GFX9: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS2]](<8 x s8>)
     %0:_(p5) = COPY $vgpr0
     %1:_(<8 x s8>) = G_LOAD %0 :: (load 8, align 8, addrspace 5)
     $vgpr0_vgpr1 = COPY %1
@@ -4475,251 +4559,271 @@ body: |
     ; SI-LABEL: name: test_load_private_v16s8_align16
     ; SI: [[COPY:%[0-9]+]]:_(p5) = COPY $vgpr0
     ; SI: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p5) :: (load 1, addrspace 56)
-    ; SI: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD]](s32)
     ; SI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
     ; SI: [[PTR_ADD:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; SI: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p5) :: (load 1 + 1, addrspace 56)
-    ; SI: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD1]](s32)
     ; SI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
     ; SI: [[PTR_ADD1:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C1]](s32)
     ; SI: [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p5) :: (load 1 + 2, addrspace 56)
-    ; SI: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD2]](s32)
     ; SI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
     ; SI: [[PTR_ADD2:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C2]](s32)
     ; SI: [[LOAD3:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD2]](p5) :: (load 1 + 3, addrspace 56)
-    ; SI: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD3]](s32)
-    ; SI: [[MV:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8)
     ; SI: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; SI: [[PTR_ADD3:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C3]](s32)
     ; SI: [[LOAD4:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD3]](p5) :: (load 1 + 4, addrspace 56)
-    ; SI: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD4]](s32)
     ; SI: [[PTR_ADD4:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD3]], [[C]](s32)
     ; SI: [[LOAD5:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD4]](p5) :: (load 1 + 5, addrspace 56)
-    ; SI: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD5]](s32)
     ; SI: [[PTR_ADD5:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD3]], [[C1]](s32)
     ; SI: [[LOAD6:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD5]](p5) :: (load 1 + 6, addrspace 56)
-    ; SI: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD6]](s32)
     ; SI: [[PTR_ADD6:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD3]], [[C2]](s32)
     ; SI: [[LOAD7:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD6]](p5) :: (load 1 + 7, addrspace 56)
-    ; SI: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD7]](s32)
-    ; SI: [[MV1:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8)
     ; SI: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
     ; SI: [[PTR_ADD7:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C4]](s32)
     ; SI: [[LOAD8:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD7]](p5) :: (load 1 + 8, addrspace 56)
-    ; SI: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD8]](s32)
     ; SI: [[PTR_ADD8:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD7]], [[C]](s32)
     ; SI: [[LOAD9:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD8]](p5) :: (load 1 + 9, addrspace 56)
-    ; SI: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD9]](s32)
     ; SI: [[PTR_ADD9:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD7]], [[C1]](s32)
     ; SI: [[LOAD10:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD9]](p5) :: (load 1 + 10, addrspace 56)
-    ; SI: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD10]](s32)
     ; SI: [[PTR_ADD10:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD7]], [[C2]](s32)
     ; SI: [[LOAD11:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD10]](p5) :: (load 1 + 11, addrspace 56)
-    ; SI: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD11]](s32)
-    ; SI: [[MV2:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8)
     ; SI: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
     ; SI: [[PTR_ADD11:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C5]](s32)
     ; SI: [[LOAD12:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD11]](p5) :: (load 1 + 12, addrspace 56)
-    ; SI: [[TRUNC12:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD12]](s32)
     ; SI: [[PTR_ADD12:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD11]], [[C]](s32)
     ; SI: [[LOAD13:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD12]](p5) :: (load 1 + 13, addrspace 56)
-    ; SI: [[TRUNC13:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD13]](s32)
     ; SI: [[PTR_ADD13:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD11]], [[C1]](s32)
     ; SI: [[LOAD14:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD13]](p5) :: (load 1 + 14, addrspace 56)
-    ; SI: [[TRUNC14:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD14]](s32)
     ; SI: [[PTR_ADD14:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD11]], [[C2]](s32)
     ; SI: [[LOAD15:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD14]](p5) :: (load 1 + 15, addrspace 56)
-    ; SI: [[TRUNC15:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD15]](s32)
-    ; SI: [[MV3:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC12]](s8), [[TRUNC13]](s8), [[TRUNC14]](s8), [[TRUNC15]](s8)
-    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[MV]](s32), [[MV1]](s32), [[MV2]](s32), [[MV3]](s32)
-    ; SI: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[BUILD_VECTOR]](<4 x s32>)
-    ; SI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; SI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; SI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; SI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LOAD2]](s32)
+    ; SI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LOAD3]](s32)
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; SI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; SI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD4]](s32)
+    ; SI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LOAD5]](s32)
+    ; SI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LOAD6]](s32)
+    ; SI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LOAD7]](s32)
+    ; SI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; SI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; SI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[LOAD8]](s32)
+    ; SI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LOAD9]](s32)
+    ; SI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LOAD10]](s32)
+    ; SI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LOAD11]](s32)
+    ; SI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; SI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; SI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[LOAD12]](s32)
+    ; SI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LOAD13]](s32)
+    ; SI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LOAD14]](s32)
+    ; SI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LOAD15]](s32)
+    ; SI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; SI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; SI: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; SI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; CI-LABEL: name: test_load_private_v16s8_align16
     ; CI: [[COPY:%[0-9]+]]:_(p5) = COPY $vgpr0
     ; CI: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p5) :: (load 1, addrspace 56)
-    ; CI: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD]](s32)
     ; CI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
     ; CI: [[PTR_ADD:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; CI: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p5) :: (load 1 + 1, addrspace 56)
-    ; CI: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD1]](s32)
     ; CI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
     ; CI: [[PTR_ADD1:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C1]](s32)
     ; CI: [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p5) :: (load 1 + 2, addrspace 56)
-    ; CI: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD2]](s32)
     ; CI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
     ; CI: [[PTR_ADD2:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C2]](s32)
     ; CI: [[LOAD3:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD2]](p5) :: (load 1 + 3, addrspace 56)
-    ; CI: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD3]](s32)
-    ; CI: [[MV:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8)
     ; CI: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; CI: [[PTR_ADD3:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C3]](s32)
     ; CI: [[LOAD4:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD3]](p5) :: (load 1 + 4, addrspace 56)
-    ; CI: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD4]](s32)
     ; CI: [[PTR_ADD4:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD3]], [[C]](s32)
     ; CI: [[LOAD5:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD4]](p5) :: (load 1 + 5, addrspace 56)
-    ; CI: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD5]](s32)
     ; CI: [[PTR_ADD5:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD3]], [[C1]](s32)
     ; CI: [[LOAD6:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD5]](p5) :: (load 1 + 6, addrspace 56)
-    ; CI: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD6]](s32)
     ; CI: [[PTR_ADD6:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD3]], [[C2]](s32)
     ; CI: [[LOAD7:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD6]](p5) :: (load 1 + 7, addrspace 56)
-    ; CI: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD7]](s32)
-    ; CI: [[MV1:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8)
     ; CI: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
     ; CI: [[PTR_ADD7:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C4]](s32)
     ; CI: [[LOAD8:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD7]](p5) :: (load 1 + 8, addrspace 56)
-    ; CI: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD8]](s32)
     ; CI: [[PTR_ADD8:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD7]], [[C]](s32)
     ; CI: [[LOAD9:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD8]](p5) :: (load 1 + 9, addrspace 56)
-    ; CI: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD9]](s32)
     ; CI: [[PTR_ADD9:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD7]], [[C1]](s32)
     ; CI: [[LOAD10:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD9]](p5) :: (load 1 + 10, addrspace 56)
-    ; CI: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD10]](s32)
     ; CI: [[PTR_ADD10:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD7]], [[C2]](s32)
     ; CI: [[LOAD11:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD10]](p5) :: (load 1 + 11, addrspace 56)
-    ; CI: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD11]](s32)
-    ; CI: [[MV2:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8)
     ; CI: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
     ; CI: [[PTR_ADD11:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C5]](s32)
     ; CI: [[LOAD12:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD11]](p5) :: (load 1 + 12, addrspace 56)
-    ; CI: [[TRUNC12:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD12]](s32)
     ; CI: [[PTR_ADD12:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD11]], [[C]](s32)
     ; CI: [[LOAD13:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD12]](p5) :: (load 1 + 13, addrspace 56)
-    ; CI: [[TRUNC13:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD13]](s32)
     ; CI: [[PTR_ADD13:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD11]], [[C1]](s32)
     ; CI: [[LOAD14:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD13]](p5) :: (load 1 + 14, addrspace 56)
-    ; CI: [[TRUNC14:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD14]](s32)
     ; CI: [[PTR_ADD14:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD11]], [[C2]](s32)
     ; CI: [[LOAD15:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD14]](p5) :: (load 1 + 15, addrspace 56)
-    ; CI: [[TRUNC15:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD15]](s32)
-    ; CI: [[MV3:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC12]](s8), [[TRUNC13]](s8), [[TRUNC14]](s8), [[TRUNC15]](s8)
-    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[MV]](s32), [[MV1]](s32), [[MV2]](s32), [[MV3]](s32)
-    ; CI: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[BUILD_VECTOR]](<4 x s32>)
-    ; CI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; CI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; CI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; CI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LOAD2]](s32)
+    ; CI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LOAD3]](s32)
+    ; CI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; CI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; CI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD4]](s32)
+    ; CI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LOAD5]](s32)
+    ; CI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LOAD6]](s32)
+    ; CI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LOAD7]](s32)
+    ; CI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; CI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; CI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[LOAD8]](s32)
+    ; CI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LOAD9]](s32)
+    ; CI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LOAD10]](s32)
+    ; CI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LOAD11]](s32)
+    ; CI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; CI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; CI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[LOAD12]](s32)
+    ; CI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LOAD13]](s32)
+    ; CI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LOAD14]](s32)
+    ; CI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LOAD15]](s32)
+    ; CI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; CI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; CI: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; CI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; VI-LABEL: name: test_load_private_v16s8_align16
     ; VI: [[COPY:%[0-9]+]]:_(p5) = COPY $vgpr0
     ; VI: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p5) :: (load 1, addrspace 56)
-    ; VI: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD]](s32)
     ; VI: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
     ; VI: [[PTR_ADD:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; VI: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p5) :: (load 1 + 1, addrspace 56)
-    ; VI: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD1]](s32)
     ; VI: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
     ; VI: [[PTR_ADD1:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C1]](s32)
     ; VI: [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p5) :: (load 1 + 2, addrspace 56)
-    ; VI: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD2]](s32)
     ; VI: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
     ; VI: [[PTR_ADD2:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C2]](s32)
     ; VI: [[LOAD3:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD2]](p5) :: (load 1 + 3, addrspace 56)
-    ; VI: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD3]](s32)
-    ; VI: [[MV:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8)
     ; VI: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; VI: [[PTR_ADD3:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C3]](s32)
     ; VI: [[LOAD4:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD3]](p5) :: (load 1 + 4, addrspace 56)
-    ; VI: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD4]](s32)
     ; VI: [[PTR_ADD4:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD3]], [[C]](s32)
     ; VI: [[LOAD5:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD4]](p5) :: (load 1 + 5, addrspace 56)
-    ; VI: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD5]](s32)
     ; VI: [[PTR_ADD5:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD3]], [[C1]](s32)
     ; VI: [[LOAD6:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD5]](p5) :: (load 1 + 6, addrspace 56)
-    ; VI: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD6]](s32)
     ; VI: [[PTR_ADD6:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD3]], [[C2]](s32)
     ; VI: [[LOAD7:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD6]](p5) :: (load 1 + 7, addrspace 56)
-    ; VI: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD7]](s32)
-    ; VI: [[MV1:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8)
     ; VI: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
     ; VI: [[PTR_ADD7:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C4]](s32)
     ; VI: [[LOAD8:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD7]](p5) :: (load 1 + 8, addrspace 56)
-    ; VI: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD8]](s32)
     ; VI: [[PTR_ADD8:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD7]], [[C]](s32)
     ; VI: [[LOAD9:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD8]](p5) :: (load 1 + 9, addrspace 56)
-    ; VI: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD9]](s32)
     ; VI: [[PTR_ADD9:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD7]], [[C1]](s32)
     ; VI: [[LOAD10:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD9]](p5) :: (load 1 + 10, addrspace 56)
-    ; VI: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD10]](s32)
     ; VI: [[PTR_ADD10:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD7]], [[C2]](s32)
     ; VI: [[LOAD11:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD10]](p5) :: (load 1 + 11, addrspace 56)
-    ; VI: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD11]](s32)
-    ; VI: [[MV2:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8)
     ; VI: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
     ; VI: [[PTR_ADD11:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C5]](s32)
     ; VI: [[LOAD12:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD11]](p5) :: (load 1 + 12, addrspace 56)
-    ; VI: [[TRUNC12:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD12]](s32)
     ; VI: [[PTR_ADD12:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD11]], [[C]](s32)
     ; VI: [[LOAD13:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD12]](p5) :: (load 1 + 13, addrspace 56)
-    ; VI: [[TRUNC13:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD13]](s32)
     ; VI: [[PTR_ADD13:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD11]], [[C1]](s32)
     ; VI: [[LOAD14:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD13]](p5) :: (load 1 + 14, addrspace 56)
-    ; VI: [[TRUNC14:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD14]](s32)
     ; VI: [[PTR_ADD14:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD11]], [[C2]](s32)
     ; VI: [[LOAD15:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD14]](p5) :: (load 1 + 15, addrspace 56)
-    ; VI: [[TRUNC15:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD15]](s32)
-    ; VI: [[MV3:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC12]](s8), [[TRUNC13]](s8), [[TRUNC14]](s8), [[TRUNC15]](s8)
-    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[MV]](s32), [[MV1]](s32), [[MV2]](s32), [[MV3]](s32)
-    ; VI: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[BUILD_VECTOR]](<4 x s32>)
-    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; VI: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; VI: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; VI: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LOAD2]](s32)
+    ; VI: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LOAD3]](s32)
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY1]](s32), [[COPY2]](s32), [[COPY3]](s32), [[COPY4]](s32)
+    ; VI: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR]](<4 x s32>)
+    ; VI: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD4]](s32)
+    ; VI: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LOAD5]](s32)
+    ; VI: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LOAD6]](s32)
+    ; VI: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LOAD7]](s32)
+    ; VI: [[BUILD_VECTOR1:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY5]](s32), [[COPY6]](s32), [[COPY7]](s32), [[COPY8]](s32)
+    ; VI: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR1]](<4 x s32>)
+    ; VI: [[COPY9:%[0-9]+]]:_(s32) = COPY [[LOAD8]](s32)
+    ; VI: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LOAD9]](s32)
+    ; VI: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LOAD10]](s32)
+    ; VI: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LOAD11]](s32)
+    ; VI: [[BUILD_VECTOR2:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY9]](s32), [[COPY10]](s32), [[COPY11]](s32), [[COPY12]](s32)
+    ; VI: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR2]](<4 x s32>)
+    ; VI: [[COPY13:%[0-9]+]]:_(s32) = COPY [[LOAD12]](s32)
+    ; VI: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LOAD13]](s32)
+    ; VI: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LOAD14]](s32)
+    ; VI: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LOAD15]](s32)
+    ; VI: [[BUILD_VECTOR3:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[COPY13]](s32), [[COPY14]](s32), [[COPY15]](s32), [[COPY16]](s32)
+    ; VI: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[BUILD_VECTOR3]](<4 x s32>)
+    ; VI: [[CONCAT_VECTORS:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS]](<16 x s8>)
     ; GFX9-LABEL: name: test_load_private_v16s8_align16
     ; GFX9: [[COPY:%[0-9]+]]:_(p5) = COPY $vgpr0
     ; GFX9: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[COPY]](p5) :: (load 1, addrspace 56)
-    ; GFX9: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD]](s32)
     ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
     ; GFX9: [[PTR_ADD:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C]](s32)
     ; GFX9: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p5) :: (load 1 + 1, addrspace 56)
-    ; GFX9: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD1]](s32)
     ; GFX9: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
     ; GFX9: [[PTR_ADD1:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C1]](s32)
     ; GFX9: [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p5) :: (load 1 + 2, addrspace 56)
-    ; GFX9: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD2]](s32)
     ; GFX9: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
     ; GFX9: [[PTR_ADD2:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C2]](s32)
     ; GFX9: [[LOAD3:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD2]](p5) :: (load 1 + 3, addrspace 56)
-    ; GFX9: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD3]](s32)
-    ; GFX9: [[MV:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC]](s8), [[TRUNC1]](s8), [[TRUNC2]](s8), [[TRUNC3]](s8)
     ; GFX9: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
     ; GFX9: [[PTR_ADD3:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C3]](s32)
     ; GFX9: [[LOAD4:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD3]](p5) :: (load 1 + 4, addrspace 56)
-    ; GFX9: [[TRUNC4:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD4]](s32)
     ; GFX9: [[PTR_ADD4:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD3]], [[C]](s32)
     ; GFX9: [[LOAD5:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD4]](p5) :: (load 1 + 5, addrspace 56)
-    ; GFX9: [[TRUNC5:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD5]](s32)
     ; GFX9: [[PTR_ADD5:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD3]], [[C1]](s32)
     ; GFX9: [[LOAD6:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD5]](p5) :: (load 1 + 6, addrspace 56)
-    ; GFX9: [[TRUNC6:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD6]](s32)
     ; GFX9: [[PTR_ADD6:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD3]], [[C2]](s32)
     ; GFX9: [[LOAD7:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD6]](p5) :: (load 1 + 7, addrspace 56)
-    ; GFX9: [[TRUNC7:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD7]](s32)
-    ; GFX9: [[MV1:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC4]](s8), [[TRUNC5]](s8), [[TRUNC6]](s8), [[TRUNC7]](s8)
     ; GFX9: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
     ; GFX9: [[PTR_ADD7:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C4]](s32)
     ; GFX9: [[LOAD8:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD7]](p5) :: (load 1 + 8, addrspace 56)
-    ; GFX9: [[TRUNC8:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD8]](s32)
     ; GFX9: [[PTR_ADD8:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD7]], [[C]](s32)
     ; GFX9: [[LOAD9:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD8]](p5) :: (load 1 + 9, addrspace 56)
-    ; GFX9: [[TRUNC9:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD9]](s32)
     ; GFX9: [[PTR_ADD9:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD7]], [[C1]](s32)
     ; GFX9: [[LOAD10:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD9]](p5) :: (load 1 + 10, addrspace 56)
-    ; GFX9: [[TRUNC10:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD10]](s32)
     ; GFX9: [[PTR_ADD10:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD7]], [[C2]](s32)
     ; GFX9: [[LOAD11:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD10]](p5) :: (load 1 + 11, addrspace 56)
-    ; GFX9: [[TRUNC11:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD11]](s32)
-    ; GFX9: [[MV2:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC8]](s8), [[TRUNC9]](s8), [[TRUNC10]](s8), [[TRUNC11]](s8)
     ; GFX9: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
     ; GFX9: [[PTR_ADD11:%[0-9]+]]:_(p5) = G_PTR_ADD [[COPY]], [[C5]](s32)
     ; GFX9: [[LOAD12:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD11]](p5) :: (load 1 + 12, addrspace 56)
-    ; GFX9: [[TRUNC12:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD12]](s32)
     ; GFX9: [[PTR_ADD12:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD11]], [[C]](s32)
     ; GFX9: [[LOAD13:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD12]](p5) :: (load 1 + 13, addrspace 56)
-    ; GFX9: [[TRUNC13:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD13]](s32)
     ; GFX9: [[PTR_ADD13:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD11]], [[C1]](s32)
     ; GFX9: [[LOAD14:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD13]](p5) :: (load 1 + 14, addrspace 56)
-    ; GFX9: [[TRUNC14:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD14]](s32)
     ; GFX9: [[PTR_ADD14:%[0-9]+]]:_(p5) = G_PTR_ADD [[PTR_ADD11]], [[C2]](s32)
     ; GFX9: [[LOAD15:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD14]](p5) :: (load 1 + 15, addrspace 56)
-    ; GFX9: [[TRUNC15:%[0-9]+]]:_(s8) = G_TRUNC [[LOAD15]](s32)
-    ; GFX9: [[MV3:%[0-9]+]]:_(s32) = G_MERGE_VALUES [[TRUNC12]](s8), [[TRUNC13]](s8), [[TRUNC14]](s8), [[TRUNC15]](s8)
-    ; GFX9: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s32>) = G_BUILD_VECTOR [[MV]](s32), [[MV1]](s32), [[MV2]](s32), [[MV3]](s32)
-    ; GFX9: [[BITCAST:%[0-9]+]]:_(<16 x s8>) = G_BITCAST [[BUILD_VECTOR]](<4 x s32>)
-    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BITCAST]](<16 x s8>)
+    ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY [[LOAD]](s32)
+    ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LOAD1]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32)
+    ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LOAD2]](s32)
+    ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LOAD3]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32)
+    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC]](<2 x s16>), [[BUILD_VECTOR_TRUNC1]](<2 x s16>)
+    ; GFX9: [[TRUNC:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS]](<4 x s16>)
+    ; GFX9: [[COPY5:%[0-9]+]]:_(s32) = COPY [[LOAD4]](s32)
+    ; GFX9: [[COPY6:%[0-9]+]]:_(s32) = COPY [[LOAD5]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32)
+    ; GFX9: [[COPY7:%[0-9]+]]:_(s32) = COPY [[LOAD6]](s32)
+    ; GFX9: [[COPY8:%[0-9]+]]:_(s32) = COPY [[LOAD7]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[COPY8]](s32)
+    ; GFX9: [[CONCAT_VECTORS1:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC2]](<2 x s16>), [[BUILD_VECTOR_TRUNC3]](<2 x s16>)
+    ; GFX9: [[TRUNC1:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS1]](<4 x s16>)
+    ; GFX9: [[COPY9:%[0-9]+]]:_(s32) = COPY [[LOAD8]](s32)
+    ; GFX9: [[COPY10:%[0-9]+]]:_(s32) = COPY [[LOAD9]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC4:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY9]](s32), [[COPY10]](s32)
+    ; GFX9: [[COPY11:%[0-9]+]]:_(s32) = COPY [[LOAD10]](s32)
+    ; GFX9: [[COPY12:%[0-9]+]]:_(s32) = COPY [[LOAD11]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC5:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY11]](s32), [[COPY12]](s32)
+    ; GFX9: [[CONCAT_VECTORS2:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC4]](<2 x s16>), [[BUILD_VECTOR_TRUNC5]](<2 x s16>)
+    ; GFX9: [[TRUNC2:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS2]](<4 x s16>)
+    ; GFX9: [[COPY13:%[0-9]+]]:_(s32) = COPY [[LOAD12]](s32)
+    ; GFX9: [[COPY14:%[0-9]+]]:_(s32) = COPY [[LOAD13]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC6:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY13]](s32), [[COPY14]](s32)
+    ; GFX9: [[COPY15:%[0-9]+]]:_(s32) = COPY [[LOAD14]](s32)
+    ; GFX9: [[COPY16:%[0-9]+]]:_(s32) = COPY [[LOAD15]](s32)
+    ; GFX9: [[BUILD_VECTOR_TRUNC7:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY15]](s32), [[COPY16]](s32)
+    ; GFX9: [[CONCAT_VECTORS3:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[BUILD_VECTOR_TRUNC6]](<2 x s16>), [[BUILD_VECTOR_TRUNC7]](<2 x s16>)
+    ; GFX9: [[TRUNC3:%[0-9]+]]:_(<4 x s8>) = G_TRUNC [[CONCAT_VECTORS3]](<4 x s16>)
+    ; GFX9: [[CONCAT_VECTORS4:%[0-9]+]]:_(<16 x s8>) = G_CONCAT_VECTORS [[TRUNC]](<4 x s8>), [[TRUNC1]](<4 x s8>), [[TRUNC2]](<4 x s8>), [[TRUNC3]](<4 x s8>)
+    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[CONCAT_VECTORS4]](<16 x s8>)
     %0:_(p5) = COPY $vgpr0
     %1:_(<16 x s8>) = G_LOAD %0 :: (load 16, align 1, addrspace 56)
     $vgpr0_vgpr1_vgpr2_vgpr3 = COPY %1


        


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