[all-commits] [llvm/llvm-project] be8c7c: AMDGPU: Use ConstantPool as source value for DAG l...

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/amdgpu/use-constant-pool-kernarg-loads
  Home:   https://github.com/llvm/llvm-project
  Commit: be8c7c91a093b26b9125c1e625750d69e797cae4
      https://github.com/llvm/llvm-project/commit/be8c7c91a093b26b9125c1e625750d69e797cae4
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-11-20 (Thu, 20 Nov 2025)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUCallLowering.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUInstrInfo.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.h
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.h
    M llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-amdgpu_kernel.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-load.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-split-scalar-load-metadata.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-widen-scalar-loads.mir

  Log Message:
  -----------
  AMDGPU: Use ConstantPool as source value for DAG lowered kernarg loads

This isn't quite a constant pool, but probably close enough for this
purpose. We just need some known invariant value address. The aliasing
queries against the real kernarg base pointer will falsely report
no aliasing, but for invariant memory it probably doesn't matter.



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