[all-commits] [llvm/llvm-project] e7e4d9: [AArch64] Use vecshiftL64 instead of vecshiftR64 t...

[Ricardo Jesus via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e7e4d99c586399758e6ddb76fb358c2dcccfae36
      https://github.com/llvm/llvm-project/commit/e7e4d99c586399758e6ddb76fb358c2dcccfae36
  Author: Ricardo Jesus <rjj at nvidia.com>
  Date:   2025-05-15 (Thu, 15 May 2025)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64InstrFormats.td
    M llvm/test/CodeGen/AArch64/arm64-vshift.ll

  Log Message:
  -----------
  [AArch64] Use vecshiftL64 instead of vecshiftR64 to match scalar SLI imm. (#139904)

`SIMDScalarLShiftDTied` should be using `vecshiftL64` to match
the immediate argument rather than `vecshiftR64` as the latter
prevents the pattern from matching 0 (and allows 64 instead).

Fixes #139879.



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