[PATCH] D133489: [AMDGPU] Fix shrinking of F16 FMA on newer subtargets

Jay Foad via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Sep 8 06:51:56 PDT 2022


foad created this revision.
foad added reviewers: AMDGPU, rampitec.
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foad requested review of this revision.
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D125803 <https://reviews.llvm.org/D125803> introduced shrinking of F16 <https://reviews.llvm.org/F16> FMA to FMAAK/FMAMK in
SIShrinkInstructions (useful on GFX10+ where VOP3 instructions may have
a literal operand) but failed to handle the V_FMA_F16_gfx9_e64 form of
the opcode which is used on GFX9+.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D133489

Files:
  llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
  llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp
  llvm/test/CodeGen/AMDGPU/fma.f16.ll
  llvm/test/CodeGen/AMDGPU/gfx10-shrink-mad-fma.mir

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