[PATCH] D64732: GlobalISel: Implement narrowScalar for vector extract/insert indexes

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: aemerson, aditya_nandakumar, paquette.
Herald added subscribers: Petar.Avramovic, volkan, arphaman, rovka, nhaehnle, wdng, jvesely.

https://reviews.llvm.org/D64732

Files:
  lib/CodeGen/GlobalISel/LegalizerHelper.cpp
  test/CodeGen/AMDGPU/GlobalISel/legalize-extract-vector-elt.mir
  test/CodeGen/AMDGPU/GlobalISel/legalize-insert-vector-elt.mir

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