[all-commits] [llvm/llvm-project] b4bc19: [X86] Add tests showing failure to demand only the...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b4bc19e2e6b7d0de9cb5f0578269085a76e99d3f
      https://github.com/llvm/llvm-project/commit/b4bc19e2e6b7d0de9cb5f0578269085a76e99d3f
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2024-02-28 (Wed, 28 Feb 2024)

  Changed paths:
    M llvm/test/CodeGen/X86/combine-sse41-intrinsics.ll

  Log Message:
  -----------
  [X86] Add tests showing failure to demand only the sign bit of a sitofp/uitofp node

sitofp - if we only demand the signbit, then we can try to use the source integer
uitofp - signbit is guaranteed to be zero

Noticed while reviewing #82290



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