[all-commits] [llvm/llvm-project] 98095a: [AArch64][GlobalISel] Split vector stores of zero.

[Amara Emerson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 98095afbcb435eb0977c8027981219d9120269bf
      https://github.com/llvm/llvm-project/commit/98095afbcb435eb0977c8027981219d9120269bf
  Author: Amara Emerson <amara at apple.com>
  Date:   2021-12-09 (Thu, 09 Dec 2021)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64Combine.td
    M llvm/lib/Target/AArch64/GISel/AArch64PostLegalizerCombiner.cpp
    A llvm/test/CodeGen/AArch64/GlobalISel/postlegalizer-combiner-split-zero-stores.mir

  Log Message:
  -----------
  [AArch64][GlobalISel] Split vector stores of zero.

This results in a very minor improvement in most cases, generating
stores of xzr instead of moving zero to a vector register.

Differential Revision: https://reviews.llvm.org/D115479