[all-commits] [llvm/llvm-project] bed839: [GISel]: Few InsertVecElt combines

[proaditya via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: bed83940478449b7ee08d43e5b74995912bf8206
      https://github.com/llvm/llvm-project/commit/bed83940478449b7ee08d43e5b74995912bf8206
  Author: Aditya Nandakumar <aditya_nandakumar at apple.com>
  Date:   2020-10-28 (Wed, 28 Oct 2020)

  Changed paths:
    M llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
    M llvm/include/llvm/CodeGen/GlobalISel/MIPatternMatch.h
    M llvm/include/llvm/Target/GlobalISel/Combine.td
    M llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
    A llvm/test/CodeGen/AArch64/GlobalISel/combine-insert-vec-elt.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/prelegalizercombiner-concat-vectors.mir
    M llvm/test/CodeGen/AArch64/combine-loads.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/udiv.i64.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/urem.i64.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/xnor.ll

  Log Message:
  -----------
  [GISel]: Few InsertVecElt combines

https://reviews.llvm.org/D88060

This adds the following combines
1) build_vector formation from insert_vec_elts
2) insert_vec_elts (build_vector) -> build_vector