[llvm] 31bd3e6 - [AMDGPU] Use VGPR classes in divergent build_vector patterns

[Jay Foad via llvm-commits]

Author: Jay Foad
Date: 2022-10-21T16:57:23+01:00
New Revision: 31bd3e6e92e6249c2741219b24830abf2213bd22

URL: https://github.com/llvm/llvm-project/commit/31bd3e6e92e6249c2741219b24830abf2213bd22
DIFF: https://github.com/llvm/llvm-project/commit/31bd3e6e92e6249c2741219b24830abf2213bd22.diff

LOG: [AMDGPU] Use VGPR classes in divergent build_vector patterns

This does not appear to affect codegen, but using SGPR classes for
operands of VALU instructions looked weird.

Differential Revision: https://reviews.llvm.org/D136459

Added: 
    

Modified: 
    llvm/lib/Target/AMDGPU/SIInstructions.td

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Target/AMDGPU/SIInstructions.td b/llvm/lib/Target/AMDGPU/SIInstructions.td
index 8100d82d21f30..5bd7f8572d091 100644
--- a/llvm/lib/Target/AMDGPU/SIInstructions.td
+++ b/llvm/lib/Target/AMDGPU/SIInstructions.td
@@ -2691,8 +2691,8 @@ def : GCNPat <
 >;
 
 def : GCNPat <
-  (v2i16 (DivergentBinFrag<build_vector> (i16 0), (i16 SReg_32:$src1))),
-  (v2i16 (V_LSHLREV_B32_e64 (i16 16), SReg_32:$src1))
+  (v2i16 (DivergentBinFrag<build_vector> (i16 0), (i16 VGPR_32:$src1))),
+  (v2i16 (V_LSHLREV_B32_e64 (i16 16), VGPR_32:$src1))
 >;
 
 
@@ -2702,8 +2702,8 @@ def : GCNPat <
 >;
 
 def : GCNPat <
-  (v2i16 (DivergentBinFrag<build_vector> (i16 SReg_32:$src1), (i16 0))),
-  (v2i16 (V_AND_B32_e64 (i32 (V_MOV_B32_e32 (i32 0xffff))), SReg_32:$src1))
+  (v2i16 (DivergentBinFrag<build_vector> (i16 VGPR_32:$src1), (i16 0))),
+  (v2i16 (V_AND_B32_e64 (i32 (V_MOV_B32_e32 (i32 0xffff))), VGPR_32:$src1))
 >;
 
 def : GCNPat <
@@ -2712,8 +2712,8 @@ def : GCNPat <
 >;
 
 def : GCNPat <
-  (v2f16 (DivergentBinFrag<build_vector> (f16 SReg_32:$src1), (f16 FP_ZERO))),
-  (v2f16 (V_AND_B32_e64 (i32 (V_MOV_B32_e32 (i32 0xffff))), SReg_32:$src1))
+  (v2f16 (DivergentBinFrag<build_vector> (f16 VGPR_32:$src1), (f16 FP_ZERO))),
+  (v2f16 (V_AND_B32_e64 (i32 (V_MOV_B32_e32 (i32 0xffff))), VGPR_32:$src1))
 >;
 
 def : GCNPat <
@@ -2737,8 +2737,8 @@ def : GCNPat <
 >;
 
 def : GCNPat <
-  (v2i16 (DivergentBinFrag<build_vector> (i16 undef), (i16 SReg_32:$src1))),
-  (v2i16 (V_LSHLREV_B32_e64 (i32 16), SReg_32:$src1))
+  (v2i16 (DivergentBinFrag<build_vector> (i16 undef), (i16 VGPR_32:$src1))),
+  (v2i16 (V_LSHLREV_B32_e64 (i32 16), VGPR_32:$src1))
 >;
 
 
@@ -2748,8 +2748,8 @@ def : GCNPat <
 >;
 
 def : GCNPat <
-  (v2f16 (DivergentBinFrag<build_vector> (f16 undef), (f16 SReg_32:$src1))),
-  (v2f16 (V_LSHLREV_B32_e64 (i32 16), SReg_32:$src1))
+  (v2f16 (DivergentBinFrag<build_vector> (f16 undef), (f16 VGPR_32:$src1))),
+  (v2f16 (V_LSHLREV_B32_e64 (i32 16), VGPR_32:$src1))
 >;
 }
 
@@ -2760,7 +2760,7 @@ def : GCNPat <
 >;
 
 def : GCNPat <
-  (v2i16 (DivergentBinFrag<build_vector> (i16 SReg_32:$src0), (i16 SReg_32:$src1))),
+  (v2i16 (DivergentBinFrag<build_vector> (i16 VGPR_32:$src0), (i16 VGPR_32:$src1))),
   (v2i16 (V_LSHL_OR_B32_e64 $src1, (i32 16), (i32 (V_AND_B32_e64 (i32 (V_MOV_B32_e32 (i32 0xffff))), $src0))))
 >;