[all-commits] [llvm/llvm-project] 23ea98: [AArch64][SVE2] Do not emit RSHRNB for large shift...

Matthew Devereau via All-commits all-commits at lists.llvm.org
Fri Sep 22 02:37:08 PDT 2023

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 23ea98f155b0e704ce00ce87cd058e49cf330edf
  Author: Matthew Devereau <matthew.devereau at arm.com>
  Date:   2023-09-22 (Fri, 22 Sep 2023)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/test/CodeGen/AArch64/sve2-intrinsics-combine-rshrnb.ll

  Log Message:
  [AArch64][SVE2] Do not emit RSHRNB for large shifts (#66672)

rshrnb's shift amount operand must be between 1-EltSizeInBits. This
patch stops RSHRNB ISD nodes being emitted in this case

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