[all-commits] [llvm/llvm-project] ca4246: AMDGPU/GlobalISel: RegBankLegalize rules for gfx90...

[vangthao95 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ca4246669006ec9d6bc88ab2acb03f308a07d422
      https://github.com/llvm/llvm-project/commit/ca4246669006ec9d6bc88ab2acb03f308a07d422
  Author: vangthao95 <vang.thao at amd.com>
  Date:   2026-06-10 (Wed, 10 Jun 2026)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPURegBankLegalizeHelper.cpp
    M llvm/lib/Target/AMDGPU/AMDGPURegBankLegalizeHelper.h
    M llvm/lib/Target/AMDGPU/AMDGPURegBankLegalizeRules.cpp
    M llvm/lib/Target/AMDGPU/AMDGPURegBankLegalizeRules.h
    M llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.mfma.gfx90a.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-amdgcn.mfma.gfx90a.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-amdgcn.mfma.gfx942.mir
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.mfma.gfx90a.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.mfma.gfx942.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.mfma.i8.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.mfma.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.mfma.xf32.gfx942.ll
    M llvm/test/CodeGen/AMDGPU/mfma-bf16-vgpr-cd-select.ll
    M llvm/test/CodeGen/AMDGPU/mfma-cd-select.ll
    M llvm/test/CodeGen/AMDGPU/mfma-no-register-aliasing.ll
    M llvm/test/CodeGen/AMDGPU/mfma-vgpr-cd-select-gfx942.ll
    M llvm/test/CodeGen/AMDGPU/mfma-vgpr-cd-select.ll

  Log Message:
  -----------
  AMDGPU/GlobalISel: RegBankLegalize rules for gfx90a/gfx942 MFMAs (#194076)

Add rules for gfx90a/gfx942 MFMA/SMFMAC intrinsics.

I see some regressions with imm splat tests and stores that could have
taken agprs. I will try to address those in a follow-up patch.



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