[all-commits] [llvm/llvm-project] 01059a: 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: 01059a9a0a2ede16512d0b72a205e715af29c3dd
      https://github.com/llvm/llvm-project/commit/01059a9a0a2ede16512d0b72a205e715af29c3dd
  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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