[all-commits] [llvm/llvm-project] 71c143: AMDGPU: Custom expand flat cmpxchg which may acces...

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/atomic-expand-allow-custom-cmpxchg-expand
  Home:   https://github.com/llvm/llvm-project
  Commit: 71c1435c6ba5556e3c5c981ecbc3fe5b265b3051
      https://github.com/llvm/llvm-project/commit/71c1435c6ba5556e3c5c981ecbc3fe5b265b3051
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2024-09-24 (Tue, 24 Sep 2024)

  Changed paths:
    M llvm/include/llvm/CodeGen/TargetLowering.h
    M llvm/include/llvm/Transforms/Utils/LowerAtomic.h
    M llvm/lib/CodeGen/AtomicExpandPass.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.h
    M llvm/lib/Transforms/Utils/LowerAtomic.cpp
    M llvm/test/CodeGen/AMDGPU/flat_atomics_i64.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomicrmw-flat-noalias-addrspace.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomicrmw-integer-ops-0-to-add-0.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-cmpxchg-flat-maybe-private.ll

  Log Message:
  -----------
  AMDGPU: Custom expand flat cmpxchg which may access private

64-bit flat cmpxchg instructions do not work correctly for scratch
addresses, and need to be expanded as non-atomic.

Allow custom expansion of cmpxchg in AtomicExpand, as is
already the case for atomicrmw.



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