[all-commits] [llvm/llvm-project] f19ee7: AMDGPU: Add baseline tests for rcp to rsq fold

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f19ee76f35b47e2b4548fa35d0ec7192db16f73c
      https://github.com/llvm/llvm-project/commit/f19ee76f35b47e2b4548fa35d0ec7192db16f73c
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2023-08-16 (Wed, 16 Aug 2023)

  Changed paths:
    A llvm/test/Transforms/InstCombine/AMDGPU/rcp-contract-rsq.ll

  Log Message:
  -----------
  AMDGPU: Add baseline tests for rcp to rsq fold


  Commit: 7c4aa3b37ed1c8ab276d67eb9757e56a2f26790c
      https://github.com/llvm/llvm-project/commit/7c4aa3b37ed1c8ab276d67eb9757e56a2f26790c
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2023-08-16 (Wed, 16 Aug 2023)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp
    M llvm/test/Transforms/InstCombine/AMDGPU/rcp-contract-rsq.ll

  Log Message:
  -----------
  AMDGPU: InstCombine amdgcn.rcp(amdgcn.sqrt) -> amdgcn.rsq

We currently have some wrong combines in the backend that
approximately do this.

https://reviews.llvm.org/D158002


Compare: https://github.com/llvm/llvm-project/compare/5816d2ab287a...7c4aa3b37ed1