[all-commits] [llvm/llvm-project] 4e15f3: AMDGPU: Correctly lower llvm.log.f32 and llvm.log1...

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4e15f378eebf9bb74d492b28ddfe8bf6ba0b8267
      https://github.com/llvm/llvm-project/commit/4e15f378eebf9bb74d492b28ddfe8bf6ba0b8267
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2023-07-05 (Wed, 05 Jul 2023)

  Changed paths:
    M llvm/docs/AMDGPUUsage.rst
    M llvm/docs/LangRef.rst
    M llvm/docs/ReleaseNotes.rst
    M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.h
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.h
    M llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h
    M llvm/lib/Target/AMDGPU/GCNSubtarget.h
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-flog.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-flog10.mir
    M llvm/test/CodeGen/AMDGPU/llvm.log.ll
    M llvm/test/CodeGen/AMDGPU/llvm.log10.ll

  Log Message:
  -----------
  AMDGPU: Correctly lower llvm.log.f32 and llvm.log10.f32

Previously we expanded these in a fast-math way and the device
libraries were relying on this behavior. The libraries have a pending
change to switch to the new target intrinsic.

Unlike the library version, this takes advantage of no-infinities on
the result overflow check.