[PATCH] D134953: [AMDGPU][GISel] Add Identity BUILD_VECTOR Combines

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


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Comment at: llvm/lib/Target/AMDGPU/AMDGPUCombine.td:48
 
+def trunc_buildvector_fold : GICombineRule<
+  (defs root:$op, register_matchinfo:$matchinfo),
----------------
Left behind AMDGPU copy


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Comment at: llvm/lib/Target/AMDGPU/AMDGPUPostLegalizerCombiner.cpp:308-309
 
+bool AMDGPUPostLegalizerCombinerHelper::matchBuildVectorIdentityFold(
+    MachineInstr &MI, Register &MatchInfo) {
+  // This combine folds the following patterns:
----------------
Left behind the AMDGPU copy


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D134953/new/

https://reviews.llvm.org/D134953