[all-commits] [llvm/llvm-project] 7e1e99: [AMDGPU] Remove permlane discard vdst_in optimizat...

[Jay Foad via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7e1e99381650cbea8b86b163f3186f3ddf8b9e36
      https://github.com/llvm/llvm-project/commit/7e1e99381650cbea8b86b163f3186f3ddf8b9e36
  Author: Jay Foad <jay.foad at amd.com>
  Date:   2022-12-22 (Thu, 22 Dec 2022)

  Changed paths:
    M llvm/lib/Target/AMDGPU/VOP3Instructions.td
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.permlane.ll

  Log Message:
  -----------
  [AMDGPU] Remove permlane discard vdst_in optimization from isel

D72845 implemented the equivalent IR optimization in InstCombine so it
seems that there's no advantage to doing it during isel too.

This partially reverts D72844.

Differential Revision: https://reviews.llvm.org/D140546