[all-commits] [llvm/llvm-project] b36f89: [AMDGPU] Make rotr illegal (#166558)

[Jay Foad via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b36f89faed59cc37da969a3515b8b2f1539667bd
      https://github.com/llvm/llvm-project/commit/b36f89faed59cc37da969a3515b8b2f1539667bd
  Author: Jay Foad <jay.foad at amd.com>
  Date:   2025-12-05 (Fri, 05 Dec 2025)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUInstructions.td
    M llvm/lib/Target/AMDGPU/EvergreenInstructions.td
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/lib/Target/AMDGPU/SIInstructions.td
    M llvm/test/CodeGen/AMDGPU/packetizer.ll
    M llvm/test/CodeGen/AMDGPU/permute.ll
    M llvm/test/CodeGen/AMDGPU/rotl.ll
    M llvm/test/CodeGen/AMDGPU/rotr.ll
    M llvm/test/CodeGen/AMDGPU/shl.ll

  Log Message:
  -----------
  [AMDGPU] Make rotr illegal (#166558)

fshr is already legal and is strictly more powerful than rotr, so we
should only need selection patterns for fshr.



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