[all-commits] [llvm/llvm-project] 543f94: [AMDGPU] Preserve exact flag for lshr (#146744)

[LU-JOHN via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 543f94831245497b675dadb6a20ebc309d289465
      https://github.com/llvm/llvm-project/commit/543f94831245497b675dadb6a20ebc309d289465
  Author: LU-JOHN <John.Lu at amd.com>
  Date:   2025-07-07 (Mon, 07 Jul 2025)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
    M llvm/test/CodeGen/AMDGPU/srl64_reduce_flags.ll

  Log Message:
  -----------
  [AMDGPU] Preserve exact flag for lshr (#146744)

When reducing 64-bit lshr to 32-bit preserve exact flag.

Alive2 verification:  https://alive2.llvm.org/ce/z/LcnX7V

---------

Signed-off-by: John Lu <John.Lu at amd.com>



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