[all-commits] [llvm/llvm-project] ef61e2: AMDGPU: Handle new atomicrmw metadata for fadd case

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/amdgpu-atomic-metadata-fadd-case
  Home:   https://github.com/llvm/llvm-project
  Commit: ef61e2a9412d0cc36739ecf3dd7c046265b83700
      https://github.com/llvm/llvm-project/commit/ef61e2a9412d0cc36739ecf3dd7c046265b83700
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2024-07-03 (Wed, 03 Jul 2024)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/flat-atomic-fadd.f32.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/flat-atomic-fadd.f64.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/fp-atomics-gfx940.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/fp64-atomics-gfx90a.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/global-atomic-fadd.f32-no-rtn.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/global-atomic-fadd.f32-rtn.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/global-atomic-fadd.f64.ll
    M llvm/test/CodeGen/AMDGPU/atomicrmw-expand.ll
    M llvm/test/CodeGen/AMDGPU/atomics-hw-remarks-gfx90a.ll
    M llvm/test/CodeGen/AMDGPU/buffer-fat-pointer-atomicrmw-fadd.ll
    M llvm/test/CodeGen/AMDGPU/flat-atomic-fadd.f32.ll
    M llvm/test/CodeGen/AMDGPU/flat-atomic-fadd.f64.ll
    M llvm/test/CodeGen/AMDGPU/flat-atomicrmw-fadd.ll
    M llvm/test/CodeGen/AMDGPU/flat-atomicrmw-fsub.ll
    M llvm/test/CodeGen/AMDGPU/fp-atomics-gfx940.ll
    M llvm/test/CodeGen/AMDGPU/fp64-atomics-gfx90a.ll
    M llvm/test/CodeGen/AMDGPU/global-atomic-fadd.f32-no-rtn.ll
    M llvm/test/CodeGen/AMDGPU/global-atomic-fadd.f32-rtn.ll
    M llvm/test/CodeGen/AMDGPU/global-atomic-fadd.f64.ll
    M llvm/test/CodeGen/AMDGPU/global-atomicrmw-fadd-wrong-subtarget.ll
    M llvm/test/CodeGen/AMDGPU/global-atomicrmw-fadd.ll
    M llvm/test/CodeGen/AMDGPU/global-atomicrmw-fsub.ll
    M llvm/test/CodeGen/AMDGPU/global-atomics-fp-wrong-subtarget.ll
    M llvm/test/CodeGen/AMDGPU/global_atomic_optimizer_fp_rtn.ll
    M llvm/test/CodeGen/AMDGPU/global_atomics_optimizer_fp_no_rtn.ll
    M llvm/test/CodeGen/AMDGPU/global_atomics_scan_fadd.ll
    M llvm/test/CodeGen/AMDGPU/global_atomics_scan_fsub.ll
    M llvm/test/CodeGen/AMDGPU/insert_waitcnt_for_precise_memory.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-f32-agent.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-f32-system.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-f64-agent.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-f64-system.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-i128.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-rmw-fadd-flat-specialization.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-rmw-fadd.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-simplify-cfg-CAS-block.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-v2bf16-system.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-v2f16-agent.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomic-v2f16-system.ll
    M llvm/test/Transforms/AtomicExpand/AMDGPU/expand-atomicrmw-fp-vector.ll

  Log Message:
  -----------
  AMDGPU: Handle new atomicrmw metadata for fadd case

This is the most complex atomicrmw support case. Note we don't have
accurate remarks for all of the cases, which I'm planning on fixing
in a later change with more precise wording.

Continue respecting amdgpu-unsafe-fp-atomics until it's eventual removal.
Also seems to fix a few cases not interpreting amdgpu-unsafe-fp-atomics
appropriately aggressively.



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