[all-commits] [llvm/llvm-project] 077400: [AMDGPULowerBufferFatPointers] Fix offset-only ptr...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0774000e3294849206aac4e18adf27286b17e217
      https://github.com/llvm/llvm-project/commit/0774000e3294849206aac4e18adf27286b17e217
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2024-06-14 (Fri, 14 Jun 2024)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPULowerBufferFatPointers.cpp
    M llvm/test/CodeGen/AMDGPU/buffer-fat-pointer-atomicrmw-fadd.ll
    M llvm/test/CodeGen/AMDGPU/buffer-fat-pointer-atomicrmw-fmax.ll
    M llvm/test/CodeGen/AMDGPU/buffer-fat-pointer-atomicrmw-fmin.ll
    M llvm/test/CodeGen/AMDGPU/lower-buffer-fat-pointers-pointer-ops.ll

  Log Message:
  -----------
  [AMDGPULowerBufferFatPointers] Fix offset-only ptrtoint (#95543)

For ptrtoint that truncates to the offset only, the expansion generated
a shift by the bit width, which is poison. Instead, we should return the
offset directly.

(The same problem exists for the constant expression case, but I plan to
address that separately, and more comprehensively.)



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications