[PATCH] D30466: AMDGPU: Add simple machine level computeKnownBits

[Matt Arsenault via Phabricator via llvm-commits]

arsenm updated this revision to Diff 90082.
arsenm added a comment.

Fix shift mask computation


https://reviews.llvm.org/D30466

Files:
  lib/Target/AMDGPU/SIInstrInfo.cpp
  lib/Target/AMDGPU/SIInstrInfo.h

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