[PATCH] D56970: GlobalISel: Implement widenScalar for G_EXTRACT vector sources

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: aditya_nandakumar, aemerson, volkan, dsanders, qcolombet.
Herald added subscribers: kristof.beyls, rovka, nhaehnle, wdng, jvesely.
arsenm added a parent revision: D56969: GlobalISel: Fix widenScalarToNextPow2 mutation for vectors     .

Handle the basic element extract case.


https://reviews.llvm.org/D56970

Files:
  lib/CodeGen/GlobalISel/LegalizerHelper.cpp
  lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
  test/CodeGen/AMDGPU/GlobalISel/legalize-extract.mir

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