[all-commits] [llvm/llvm-project] 74e191: [AArch64][GlobalISel] Combiner for EXT

[chuongg3 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 74e191da07d77bb0c3184dda80d0d9800f6bb9e5
      https://github.com/llvm/llvm-project/commit/74e191da07d77bb0c3184dda80d0d9800f6bb9e5
  Author: Tuan Chuong Goh <chuong.goh at arm.com>
  Date:   2023-08-17 (Thu, 17 Aug 2023)

  Changed paths:
    M llvm/include/llvm/CodeGen/GlobalISel/LegalizationArtifactCombiner.h
    M llvm/test/CodeGen/AMDGPU/GlobalISel/artifact-combiner-unmerge-values.mir

  Log Message:
  -----------
  [AArch64][GlobalISel] Combiner for EXT

Keep components of UNMERGE larger after running the Artifact Combiner on it.
This was intended to help with <v16i64> = G_SEXT <v16i16>, but implementation
for legalizing EXT is in a following patch, therefore a test for this case
will be included in the following patch

Differential Revision: https://reviews.llvm.org/D157715