[PATCH] D69071: [GISel][CombinerHelper] Add concat_vectors(build_vector, build_vector) => build_vector

[Quentin Colombet via Phabricator via llvm-commits]

qcolombet updated this revision to Diff 225321.
qcolombet added a comment.

- Replace check with an assertion
- Update comments with pre-conditions


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D69071/new/

https://reviews.llvm.org/D69071

Files:
  include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  lib/CodeGen/GlobalISel/CombinerHelper.cpp
  lib/Target/AArch64/AArch64PreLegalizerCombiner.cpp
  test/CodeGen/AArch64/GlobalISel/prelegalizercombiner-concat-vectors.mir

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