[llvm] r327242 - [X86][AVX] createVariablePermute - use PSHUFB+PCMPGT+SELECT for v32i8 variable permutes

Simon Pilgrim via llvm-commits llvm-commits at lists.llvm.org
Sun Mar 11 09:28:12 PDT 2018


Author: rksimon
Date: Sun Mar 11 09:28:11 2018
New Revision: 327242

URL: http://llvm.org/viewvc/llvm-project?rev=327242&view=rev
Log:
[X86][AVX] createVariablePermute - use PSHUFB+PCMPGT+SELECT for v32i8 variable permutes

Same as the VPERMILPS/VPERMILPD approach for v8f32/v4f64 cases, rely on PSHUFB using bits[3:0] for indexing - we can ignore the sign bit (zero element) as those index vector values are considered undefined. The select between the lo/hi permute results based on the index size.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
    llvm/trunk/test/CodeGen/X86/var-permute-256.ll

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=327242&r1=327241&r2=327242&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Sun Mar 11 09:28:11 2018
@@ -8027,6 +8027,26 @@ SDValue createVariablePermute(MVT VT, SD
           ISD::CONCAT_VECTORS, DL, VT,
           DAG.getNode(X86ISD::VPPERM, DL, MVT::v16i8, LoSrc, HiSrc, LoIdx),
           DAG.getNode(X86ISD::VPPERM, DL, MVT::v16i8, LoSrc, HiSrc, HiIdx));
+    } else if (Subtarget.hasAVX()) {
+      SDValue Lo = extract128BitVector(SrcVec, 0, DAG, DL);
+      SDValue Hi = extract128BitVector(SrcVec, 16, DAG, DL);
+      SDValue LoLo = DAG.getNode(ISD::CONCAT_VECTORS, DL, VT, Lo, Lo);
+      SDValue HiHi = DAG.getNode(ISD::CONCAT_VECTORS, DL, VT, Hi, Hi);
+      auto PSHUFBBuilder = [](SelectionDAG &DAG, const SDLoc &DL,
+                              ArrayRef<SDValue> Ops) {
+        // Permute Lo and Hi and then select based on index range.
+        // This works as SHUFB uses bits[3:0] to permute elements and we don't
+        // care about the bit[7] as its just an index vector.
+        SDValue Idx = Ops[2];
+        EVT VT = Idx.getValueType();
+        return DAG.getSelectCC(DL, Idx, DAG.getConstant(15, DL, VT),
+                               DAG.getNode(X86ISD::PSHUFB, DL, VT, Ops[1], Idx),
+                               DAG.getNode(X86ISD::PSHUFB, DL, VT, Ops[0], Idx),
+                               ISD::CondCode::SETGT);
+      };
+      SDValue Ops[] = {LoLo, HiHi, IndicesVec};
+      return SplitOpsAndApply(DAG, Subtarget, DL, MVT::v32i8, Ops,
+                              PSHUFBBuilder);
     }
     break;
   case MVT::v16i16:

Modified: llvm/trunk/test/CodeGen/X86/var-permute-256.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/var-permute-256.ll?rev=327242&r1=327241&r2=327242&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/var-permute-256.ll (original)
+++ llvm/trunk/test/CodeGen/X86/var-permute-256.ll Sun Mar 11 09:28:11 2018
@@ -541,637 +541,62 @@ define <32 x i8> @var_shuffle_v32i8(<32
 ;
 ; AVX1-LABEL: var_shuffle_v32i8:
 ; AVX1:       # %bb.0:
-; AVX1-NEXT:    pushq %rbp
-; AVX1-NEXT:    movq %rsp, %rbp
-; AVX1-NEXT:    andq $-32, %rsp
-; AVX1-NEXT:    subq $64, %rsp
 ; AVX1-NEXT:    vextractf128 $1, %ymm1, %xmm2
-; AVX1-NEXT:    vpextrb $0, %xmm2, %eax
-; AVX1-NEXT:    vmovaps %ymm0, (%rsp)
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vmovd %eax, %xmm0
-; AVX1-NEXT:    vpextrb $1, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $1, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $2, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $2, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $3, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $4, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $4, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $5, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $5, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $6, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $6, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $7, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $7, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $8, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $8, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $9, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $9, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $10, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $10, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $11, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $11, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $12, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $12, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $13, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $13, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $14, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $14, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $15, %xmm2, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $15, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $0, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vmovd %eax, %xmm2
-; AVX1-NEXT:    vpextrb $1, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $1, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $2, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $2, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $3, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $3, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $4, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $4, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $5, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $5, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $6, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $6, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $7, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $7, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $8, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $8, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $9, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $9, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $10, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $10, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $11, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $11, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $12, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $12, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $13, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $13, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $14, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    vpinsrb $14, (%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $15, %xmm1, %eax
-; AVX1-NEXT:    andl $31, %eax
-; AVX1-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $15, %eax, %xmm2, %xmm1
-; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm1, %ymm0
-; AVX1-NEXT:    movq %rbp, %rsp
-; AVX1-NEXT:    popq %rbp
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpcmpgtb %xmm3, %xmm2, %xmm4
+; AVX1-NEXT:    vextractf128 $1, %ymm0, %xmm5
+; AVX1-NEXT:    vpshufb %xmm2, %xmm5, %xmm6
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm2
+; AVX1-NEXT:    vpblendvb %xmm4, %xmm6, %xmm2, %xmm2
+; AVX1-NEXT:    vpcmpgtb %xmm3, %xmm1, %xmm3
+; AVX1-NEXT:    vpshufb %xmm1, %xmm5, %xmm4
+; AVX1-NEXT:    vpshufb %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpblendvb %xmm3, %xmm4, %xmm0, %xmm0
+; AVX1-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: var_shuffle_v32i8:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    pushq %rbp
-; AVX2-NEXT:    movq %rsp, %rbp
-; AVX2-NEXT:    andq $-32, %rsp
-; AVX2-NEXT:    subq $64, %rsp
-; AVX2-NEXT:    vextracti128 $1, %ymm1, %xmm2
-; AVX2-NEXT:    vpextrb $0, %xmm2, %eax
-; AVX2-NEXT:    vmovaps %ymm0, (%rsp)
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vmovd %eax, %xmm0
-; AVX2-NEXT:    vpextrb $1, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $1, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $2, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $2, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $3, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $4, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $4, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $5, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $5, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $6, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $6, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $7, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $7, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $8, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $8, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $9, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $9, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $10, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $10, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $11, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $11, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $12, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $12, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $13, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $13, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $14, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $14, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $15, %xmm2, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $15, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $0, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vmovd %eax, %xmm2
-; AVX2-NEXT:    vpextrb $1, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $1, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $2, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $2, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $3, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $3, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $4, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $4, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $5, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $5, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $6, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $6, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $7, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $7, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $8, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $8, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $9, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $9, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $10, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $10, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $11, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $11, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $12, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $12, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $13, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $13, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $14, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    vpinsrb $14, (%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $15, %xmm1, %eax
-; AVX2-NEXT:    andl $31, %eax
-; AVX2-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $15, %eax, %xmm2, %xmm1
-; AVX2-NEXT:    vinserti128 $1, %xmm0, %ymm1, %ymm0
-; AVX2-NEXT:    movq %rbp, %rsp
-; AVX2-NEXT:    popq %rbp
+; AVX2-NEXT:    vinserti128 $1, %xmm0, %ymm0, %ymm2
+; AVX2-NEXT:    vpshufb %ymm1, %ymm2, %ymm2
+; AVX2-NEXT:    vextracti128 $1, %ymm0, %xmm3
+; AVX2-NEXT:    vpblendd {{.*#+}} ymm0 = ymm3[0,1,2,3],ymm0[4,5,6,7]
+; AVX2-NEXT:    vpshufb %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpcmpgtb {{.*}}(%rip), %ymm1, %ymm1
+; AVX2-NEXT:    vpblendvb %ymm1, %ymm0, %ymm2, %ymm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512F-LABEL: var_shuffle_v32i8:
 ; AVX512F:       # %bb.0:
-; AVX512F-NEXT:    pushq %rbp
-; AVX512F-NEXT:    movq %rsp, %rbp
-; AVX512F-NEXT:    andq $-32, %rsp
-; AVX512F-NEXT:    subq $64, %rsp
-; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
-; AVX512F-NEXT:    vpextrb $0, %xmm2, %eax
-; AVX512F-NEXT:    vmovaps %ymm0, (%rsp)
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vmovd %eax, %xmm0
-; AVX512F-NEXT:    vpextrb $1, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $1, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $2, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $2, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $3, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $4, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $4, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $5, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $5, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $6, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $6, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $7, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $7, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $8, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $8, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $9, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $9, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $10, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $10, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $11, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $11, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $12, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $12, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $13, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $13, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $14, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $14, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $15, %xmm2, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $15, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $0, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vmovd %eax, %xmm2
-; AVX512F-NEXT:    vpextrb $1, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $1, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $2, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $2, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $3, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $3, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $4, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $4, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $5, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $5, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $6, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $6, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $7, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $7, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $8, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $8, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $9, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $9, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $10, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $10, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $11, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $11, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $12, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $12, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $13, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $13, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $14, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    vpinsrb $14, (%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $15, %xmm1, %eax
-; AVX512F-NEXT:    andl $31, %eax
-; AVX512F-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $15, %eax, %xmm2, %xmm1
-; AVX512F-NEXT:    vinserti128 $1, %xmm0, %ymm1, %ymm0
-; AVX512F-NEXT:    movq %rbp, %rsp
-; AVX512F-NEXT:    popq %rbp
+; AVX512F-NEXT:    vinserti128 $1, %xmm0, %ymm0, %ymm2
+; AVX512F-NEXT:    vpshufb %ymm1, %ymm2, %ymm2
+; AVX512F-NEXT:    vextracti128 $1, %ymm0, %xmm3
+; AVX512F-NEXT:    vpblendd {{.*#+}} ymm0 = ymm3[0,1,2,3],ymm0[4,5,6,7]
+; AVX512F-NEXT:    vpshufb %ymm1, %ymm0, %ymm0
+; AVX512F-NEXT:    vpcmpgtb {{.*}}(%rip), %ymm1, %ymm1
+; AVX512F-NEXT:    vpblendvb %ymm1, %ymm0, %ymm2, %ymm0
 ; AVX512F-NEXT:    retq
 ;
 ; AVX512DQ-LABEL: var_shuffle_v32i8:
 ; AVX512DQ:       # %bb.0:
-; AVX512DQ-NEXT:    pushq %rbp
-; AVX512DQ-NEXT:    movq %rsp, %rbp
-; AVX512DQ-NEXT:    andq $-32, %rsp
-; AVX512DQ-NEXT:    subq $64, %rsp
-; AVX512DQ-NEXT:    vextracti128 $1, %ymm1, %xmm2
-; AVX512DQ-NEXT:    vpextrb $0, %xmm2, %eax
-; AVX512DQ-NEXT:    vmovaps %ymm0, (%rsp)
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vmovd %eax, %xmm0
-; AVX512DQ-NEXT:    vpextrb $1, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $1, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $2, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $2, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $3, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $4, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $4, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $5, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $5, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $6, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $6, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $7, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $7, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $8, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $8, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $9, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $9, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $10, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $10, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $11, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $11, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $12, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $12, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $13, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $13, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $14, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $14, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $15, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $15, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $0, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vmovd %eax, %xmm2
-; AVX512DQ-NEXT:    vpextrb $1, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $1, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $2, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $2, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $3, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $3, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $4, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $4, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $5, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $5, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $6, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $6, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $7, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $7, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $8, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $8, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $9, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $9, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $10, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $10, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $11, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $11, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $12, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $12, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $13, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $13, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $14, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    vpinsrb $14, (%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $15, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $31, %eax
-; AVX512DQ-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $15, %eax, %xmm2, %xmm1
-; AVX512DQ-NEXT:    vinserti128 $1, %xmm0, %ymm1, %ymm0
-; AVX512DQ-NEXT:    movq %rbp, %rsp
-; AVX512DQ-NEXT:    popq %rbp
+; AVX512DQ-NEXT:    vinserti128 $1, %xmm0, %ymm0, %ymm2
+; AVX512DQ-NEXT:    vpshufb %ymm1, %ymm2, %ymm2
+; AVX512DQ-NEXT:    vextracti128 $1, %ymm0, %xmm3
+; AVX512DQ-NEXT:    vpblendd {{.*#+}} ymm0 = ymm3[0,1,2,3],ymm0[4,5,6,7]
+; AVX512DQ-NEXT:    vpshufb %ymm1, %ymm0, %ymm0
+; AVX512DQ-NEXT:    vpcmpgtb {{.*}}(%rip), %ymm1, %ymm1
+; AVX512DQ-NEXT:    vpblendvb %ymm1, %ymm0, %ymm2, %ymm0
 ; AVX512DQ-NEXT:    retq
 ;
 ; AVX512VL-LABEL: var_shuffle_v32i8:
 ; AVX512VL:       # %bb.0:
-; AVX512VL-NEXT:    pushq %rbp
-; AVX512VL-NEXT:    movq %rsp, %rbp
-; AVX512VL-NEXT:    andq $-32, %rsp
-; AVX512VL-NEXT:    subq $64, %rsp
-; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
-; AVX512VL-NEXT:    vpextrb $0, %xmm2, %eax
-; AVX512VL-NEXT:    vmovaps %ymm0, (%rsp)
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vmovd %eax, %xmm0
-; AVX512VL-NEXT:    vpextrb $1, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $1, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $2, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $2, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $3, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $4, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $4, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $5, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $5, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $6, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $6, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $7, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $7, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $8, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $8, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $9, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $9, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $10, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $10, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $11, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $11, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $12, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $12, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $13, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $13, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $14, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $14, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $15, %xmm2, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $15, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $0, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vmovd %eax, %xmm2
-; AVX512VL-NEXT:    vpextrb $1, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $1, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $2, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $2, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $3, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $3, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $4, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $4, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $5, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $5, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $6, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $6, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $7, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $7, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $8, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $8, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $9, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $9, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $10, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $10, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $11, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $11, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $12, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $12, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $13, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $13, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $14, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    vpinsrb $14, (%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $15, %xmm1, %eax
-; AVX512VL-NEXT:    andl $31, %eax
-; AVX512VL-NEXT:    movzbl (%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $15, %eax, %xmm2, %xmm1
-; AVX512VL-NEXT:    vinserti128 $1, %xmm0, %ymm1, %ymm0
-; AVX512VL-NEXT:    movq %rbp, %rsp
-; AVX512VL-NEXT:    popq %rbp
+; AVX512VL-NEXT:    vinserti128 $1, %xmm0, %ymm0, %ymm2
+; AVX512VL-NEXT:    vpshufb %ymm1, %ymm2, %ymm2
+; AVX512VL-NEXT:    vextracti128 $1, %ymm0, %xmm3
+; AVX512VL-NEXT:    vpblendd {{.*#+}} ymm0 = ymm3[0,1,2,3],ymm0[4,5,6,7]
+; AVX512VL-NEXT:    vpshufb %ymm1, %ymm0, %ymm0
+; AVX512VL-NEXT:    vpcmpgtb {{.*}}(%rip), %ymm1, %ymm1
+; AVX512VL-NEXT:    vpblendvb %ymm1, %ymm0, %ymm2, %ymm0
 ; AVX512VL-NEXT:    retq
 ;
 ; VBMI-LABEL: var_shuffle_v32i8:
@@ -1928,606 +1353,56 @@ define <32 x i8> @var_shuffle_v32i8_from
 ; AVX1-LABEL: var_shuffle_v32i8_from_v16i8:
 ; AVX1:       # %bb.0:
 ; AVX1-NEXT:    vextractf128 $1, %ymm1, %xmm2
-; AVX1-NEXT:    vpextrb $0, %xmm2, %eax
-; AVX1-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vmovd %eax, %xmm0
-; AVX1-NEXT:    vpextrb $1, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $1, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $2, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $2, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $3, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $4, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $4, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $5, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $5, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $6, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $6, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $7, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $7, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $8, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $8, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $9, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $9, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $10, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $10, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $11, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $11, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $12, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $12, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $13, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $13, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $14, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $14, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $15, %xmm2, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $15, %eax, %xmm0, %xmm0
-; AVX1-NEXT:    vpextrb $0, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vmovd %eax, %xmm2
-; AVX1-NEXT:    vpextrb $1, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $1, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $2, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $2, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $3, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $3, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $4, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $4, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $5, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $5, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $6, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $6, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $7, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $7, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $8, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $8, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $9, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $9, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $10, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $10, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $11, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $11, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $12, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $12, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $13, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $13, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $14, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    vpinsrb $14, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX1-NEXT:    vpextrb $15, %xmm1, %eax
-; AVX1-NEXT:    andl $15, %eax
-; AVX1-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX1-NEXT:    vpinsrb $15, %eax, %xmm2, %xmm1
-; AVX1-NEXT:    vinsertf128 $1, %xmm0, %ymm1, %ymm0
+; AVX1-NEXT:    vmovdqa {{.*#+}} xmm3 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
+; AVX1-NEXT:    vpcmpgtb %xmm3, %xmm2, %xmm4
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm5
+; AVX1-NEXT:    vpshufb %xmm2, %xmm0, %xmm2
+; AVX1-NEXT:    vpblendvb %xmm4, %xmm5, %xmm2, %xmm2
+; AVX1-NEXT:    vpcmpgtb %xmm3, %xmm1, %xmm3
+; AVX1-NEXT:    vpshufb %xmm1, %xmm0, %xmm4
+; AVX1-NEXT:    vpshufb %xmm1, %xmm0, %xmm0
+; AVX1-NEXT:    vpblendvb %xmm3, %xmm4, %xmm0, %xmm0
+; AVX1-NEXT:    vinsertf128 $1, %xmm2, %ymm0, %ymm0
 ; AVX1-NEXT:    retq
 ;
 ; AVX2-LABEL: var_shuffle_v32i8_from_v16i8:
 ; AVX2:       # %bb.0:
-; AVX2-NEXT:    vextracti128 $1, %ymm1, %xmm2
-; AVX2-NEXT:    vpextrb $0, %xmm2, %eax
-; AVX2-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vmovd %eax, %xmm0
-; AVX2-NEXT:    vpextrb $1, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $1, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $2, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $2, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $3, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $4, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $4, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $5, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $5, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $6, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $6, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $7, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $7, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $8, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $8, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $9, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $9, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $10, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $10, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $11, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $11, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $12, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $12, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $13, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $13, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $14, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $14, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $15, %xmm2, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $15, %eax, %xmm0, %xmm0
-; AVX2-NEXT:    vpextrb $0, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vmovd %eax, %xmm2
-; AVX2-NEXT:    vpextrb $1, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $1, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $2, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $2, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $3, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $3, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $4, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $4, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $5, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $5, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $6, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $6, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $7, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $7, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $8, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $8, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $9, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $9, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $10, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $10, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $11, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $11, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $12, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $12, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $13, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $13, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $14, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    vpinsrb $14, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX2-NEXT:    vpextrb $15, %xmm1, %eax
-; AVX2-NEXT:    andl $15, %eax
-; AVX2-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX2-NEXT:    vpinsrb $15, %eax, %xmm2, %xmm1
-; AVX2-NEXT:    vinserti128 $1, %xmm0, %ymm1, %ymm0
+; AVX2-NEXT:    # kill: def $xmm0 killed $xmm0 def $ymm0
+; AVX2-NEXT:    vpshufb %ymm1, %ymm0, %ymm2
+; AVX2-NEXT:    vinserti128 $1, %xmm0, %ymm0, %ymm0
+; AVX2-NEXT:    vpshufb %ymm1, %ymm0, %ymm0
+; AVX2-NEXT:    vpcmpgtb {{.*}}(%rip), %ymm1, %ymm1
+; AVX2-NEXT:    vpblendvb %ymm1, %ymm2, %ymm0, %ymm0
 ; AVX2-NEXT:    retq
 ;
 ; AVX512F-LABEL: var_shuffle_v32i8_from_v16i8:
 ; AVX512F:       # %bb.0:
-; AVX512F-NEXT:    vextracti128 $1, %ymm1, %xmm2
-; AVX512F-NEXT:    vpextrb $0, %xmm2, %eax
-; AVX512F-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vmovd %eax, %xmm0
-; AVX512F-NEXT:    vpextrb $1, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $1, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $2, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $2, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $3, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $4, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $4, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $5, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $5, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $6, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $6, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $7, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $7, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $8, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $8, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $9, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $9, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $10, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $10, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $11, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $11, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $12, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $12, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $13, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $13, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $14, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $14, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $15, %xmm2, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $15, %eax, %xmm0, %xmm0
-; AVX512F-NEXT:    vpextrb $0, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vmovd %eax, %xmm2
-; AVX512F-NEXT:    vpextrb $1, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $1, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $2, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $2, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $3, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $3, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $4, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $4, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $5, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $5, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $6, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $6, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $7, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $7, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $8, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $8, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $9, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $9, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $10, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $10, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $11, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $11, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $12, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $12, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $13, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $13, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $14, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    vpinsrb $14, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512F-NEXT:    vpextrb $15, %xmm1, %eax
-; AVX512F-NEXT:    andl $15, %eax
-; AVX512F-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512F-NEXT:    vpinsrb $15, %eax, %xmm2, %xmm1
-; AVX512F-NEXT:    vinserti128 $1, %xmm0, %ymm1, %ymm0
+; AVX512F-NEXT:    # kill: def $xmm0 killed $xmm0 def $ymm0
+; AVX512F-NEXT:    vpshufb %ymm1, %ymm0, %ymm2
+; AVX512F-NEXT:    vinserti128 $1, %xmm0, %ymm0, %ymm0
+; AVX512F-NEXT:    vpshufb %ymm1, %ymm0, %ymm0
+; AVX512F-NEXT:    vpcmpgtb {{.*}}(%rip), %ymm1, %ymm1
+; AVX512F-NEXT:    vpblendvb %ymm1, %ymm2, %ymm0, %ymm0
 ; AVX512F-NEXT:    retq
 ;
 ; AVX512DQ-LABEL: var_shuffle_v32i8_from_v16i8:
 ; AVX512DQ:       # %bb.0:
-; AVX512DQ-NEXT:    vextracti128 $1, %ymm1, %xmm2
-; AVX512DQ-NEXT:    vpextrb $0, %xmm2, %eax
-; AVX512DQ-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vmovd %eax, %xmm0
-; AVX512DQ-NEXT:    vpextrb $1, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $1, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $2, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $2, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $3, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $4, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $4, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $5, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $5, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $6, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $6, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $7, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $7, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $8, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $8, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $9, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $9, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $10, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $10, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $11, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $11, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $12, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $12, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $13, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $13, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $14, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $14, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $15, %xmm2, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $15, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpextrb $0, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vmovd %eax, %xmm2
-; AVX512DQ-NEXT:    vpextrb $1, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $1, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $2, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $2, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $3, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $3, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $4, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $4, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $5, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $5, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $6, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $6, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $7, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $7, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $8, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $8, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $9, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $9, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $10, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $10, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $11, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $11, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $12, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $12, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $13, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $13, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $14, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    vpinsrb $14, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpextrb $15, %xmm1, %eax
-; AVX512DQ-NEXT:    andl $15, %eax
-; AVX512DQ-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512DQ-NEXT:    vpinsrb $15, %eax, %xmm2, %xmm1
-; AVX512DQ-NEXT:    vinserti128 $1, %xmm0, %ymm1, %ymm0
+; AVX512DQ-NEXT:    # kill: def $xmm0 killed $xmm0 def $ymm0
+; AVX512DQ-NEXT:    vpshufb %ymm1, %ymm0, %ymm2
+; AVX512DQ-NEXT:    vinserti128 $1, %xmm0, %ymm0, %ymm0
+; AVX512DQ-NEXT:    vpshufb %ymm1, %ymm0, %ymm0
+; AVX512DQ-NEXT:    vpcmpgtb {{.*}}(%rip), %ymm1, %ymm1
+; AVX512DQ-NEXT:    vpblendvb %ymm1, %ymm2, %ymm0, %ymm0
 ; AVX512DQ-NEXT:    retq
 ;
 ; AVX512VL-LABEL: var_shuffle_v32i8_from_v16i8:
 ; AVX512VL:       # %bb.0:
-; AVX512VL-NEXT:    vextracti128 $1, %ymm1, %xmm2
-; AVX512VL-NEXT:    vpextrb $0, %xmm2, %eax
-; AVX512VL-NEXT:    vmovaps %xmm0, -{{[0-9]+}}(%rsp)
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vmovd %eax, %xmm0
-; AVX512VL-NEXT:    vpextrb $1, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $1, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $2, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $2, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $3, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $3, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $4, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $4, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $5, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $5, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $6, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $6, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $7, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $7, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $8, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $8, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $9, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $9, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $10, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $10, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $11, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $11, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $12, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $12, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $13, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $13, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $14, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $14, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $15, %xmm2, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $15, %eax, %xmm0, %xmm0
-; AVX512VL-NEXT:    vpextrb $0, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vmovd %eax, %xmm2
-; AVX512VL-NEXT:    vpextrb $1, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $1, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $2, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $2, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $3, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $3, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $4, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $4, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $5, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $5, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $6, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $6, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $7, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $7, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $8, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $8, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $9, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $9, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $10, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $10, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $11, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $11, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $12, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $12, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $13, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $13, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $14, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    vpinsrb $14, -24(%rsp,%rax), %xmm2, %xmm2
-; AVX512VL-NEXT:    vpextrb $15, %xmm1, %eax
-; AVX512VL-NEXT:    andl $15, %eax
-; AVX512VL-NEXT:    movzbl -24(%rsp,%rax), %eax
-; AVX512VL-NEXT:    vpinsrb $15, %eax, %xmm2, %xmm1
-; AVX512VL-NEXT:    vinserti128 $1, %xmm0, %ymm1, %ymm0
+; AVX512VL-NEXT:    # kill: def $xmm0 killed $xmm0 def $ymm0
+; AVX512VL-NEXT:    vpshufb %ymm1, %ymm0, %ymm2
+; AVX512VL-NEXT:    vinserti128 $1, %xmm0, %ymm0, %ymm0
+; AVX512VL-NEXT:    vpshufb %ymm1, %ymm0, %ymm0
+; AVX512VL-NEXT:    vpcmpgtb {{.*}}(%rip), %ymm1, %ymm1
+; AVX512VL-NEXT:    vpblendvb %ymm1, %ymm2, %ymm0, %ymm0
 ; AVX512VL-NEXT:    retq
 ;
 ; VBMI-LABEL: var_shuffle_v32i8_from_v16i8:




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