[all-commits] [llvm/llvm-project] 8bacfb: [AMDGPU] Remove `UnsafeFPMath` uses (#151079)

[paperchalice via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8bacfb25381c4371fc279f51574a950bd77c3d53
      https://github.com/llvm/llvm-project/commit/8bacfb25381c4371fc279f51574a950bd77c3d53
  Author: paperchalice <liujunchang97 at outlook.com>
  Date:   2025-07-31 (Thu, 31 Jul 2025)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUInstructions.td
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULibCalls.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/frem.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fdiv.mir
    M llvm/test/CodeGen/AMDGPU/fdiv.f16.ll
    M llvm/test/CodeGen/AMDGPU/fptrunc.f16.ll
    M llvm/test/CodeGen/AMDGPU/fptrunc.ll
    M llvm/test/CodeGen/AMDGPU/fsqrt.f32.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.rcp.ll
    M llvm/test/CodeGen/AMDGPU/llvm.exp.ll
    M llvm/test/CodeGen/AMDGPU/llvm.exp10.ll
    M llvm/test/CodeGen/AMDGPU/llvm.log.ll
    M llvm/test/CodeGen/AMDGPU/llvm.log10.ll
    M llvm/test/CodeGen/AMDGPU/rcp-pattern.ll
    M llvm/test/CodeGen/AMDGPU/rsq.f32.ll
    M llvm/test/CodeGen/AMDGPU/rsq.f64.ll

  Log Message:
  -----------
  [AMDGPU] Remove `UnsafeFPMath` uses (#151079)

Remove `UnsafeFPMath` in AMDGPU part, it blocks some bugfixes related to
clang and the ultimate goal is to remove `resetTargetOptions` method in
`TargetMachine`, see FIXME in `resetTargetOptions`.
See also
https://discourse.llvm.org/t/rfc-honor-pragmas-with-ffp-contract-fast

https://discourse.llvm.org/t/allowfpopfusion-vs-sdnodeflags-hasallowcontract

---------

Co-authored-by: Matt Arsenault <arsenm2 at gmail.com>



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