[all-commits] [llvm/llvm-project] 9708d8: Revert rG42230efccf8fe1185be5fa6c23dce0a8183d6ec9 ...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9708d88017d0c9adaea65a4f5a5b589b67f292e2
      https://github.com/llvm/llvm-project/commit/9708d88017d0c9adaea65a4f5a5b589b67f292e2
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-10-19 (Wed, 19 Oct 2022)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/test/CodeGen/AMDGPU/bfe-patterns.ll

  Log Message:
  -----------
  Revert rG42230efccf8fe1185be5fa6c23dce0a8183d6ec9 "[DAG] Fold (sra (or (shl x, c1), (shl y, c2)), c1) -> (sext_inreg (or x, (shl y,c2-c1)) iff c2 >= c1"

@foad was right - this isn't actually going to help with D136042 as much as hoped, we need a better AMDGPU-specific solution as other targets are likely to make use of it