[PATCH] D112827: [AMDGPU][GlobalISel] Fold G_FNEG above when users cannot fold mods

[Mirko Brkusanin via Phabricator via llvm-commits]

mbrkusanin updated this revision to Diff 386214.
mbrkusanin added a comment.
Herald added a subscriber: mgorny.

- Added AMDGPUCombinerHelper, a common helper for both amdgpu-prelegalizer-combiner and amdgpu-postlegalizer-combiner pass. This way same combine can be used in both passes. Since this is a AMD specific combine it made no sense to put in generic CombinerHelper.

      


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D112827/new/

https://reviews.llvm.org/D112827

Files:
  llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
  llvm/lib/Target/AMDGPU/AMDGPUCombine.td
  llvm/lib/Target/AMDGPU/AMDGPUCombinerHelper.cpp
  llvm/lib/Target/AMDGPU/AMDGPUCombinerHelper.h
  llvm/lib/Target/AMDGPU/AMDGPUPostLegalizerCombiner.cpp
  llvm/lib/Target/AMDGPU/AMDGPUPreLegalizerCombiner.cpp
  llvm/lib/Target/AMDGPU/CMakeLists.txt
  llvm/test/CodeGen/AMDGPU/GlobalISel/combine-foldable-fneg.mir
  llvm/utils/gn/secondary/llvm/lib/Target/AMDGPU/BUILD.gn

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