[PATCH] D36299: [AMDGPU] Preserve inverted bit in SI_IF in presence of SI_KILL

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

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

In case if SI_KILL is in between of the SI_IF and SI_END_CF we need
to preserve the bits actually flipped by if rather then restoring
the original mask.


https://reviews.llvm.org/D36299

Files:
  lib/Target/AMDGPU/SILowerControlFlow.cpp
  test/CodeGen/AMDGPU/si-lower-control-flow-kill.ll
  test/CodeGen/AMDGPU/skip-if-dead.ll

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