[PATCH] D32036: AMDGPU: SimplifyDemandedElts for image intrinsics

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
Herald added subscribers: t-tye, tpr, dstuttard, yaxunl, wdng, kzhuravl.

Causes some VGPR usage improvements in shaderdb, but
introduces some SGPR spilling regressions due to random
scheduling changes later.

https://ghostbin.com/paste/ghrtj


https://reviews.llvm.org/D32036

Files:
  lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
  test/Transforms/InstCombine/amdgcn-demanded-vector-elts.ll

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