[PATCH] D105836: [AMDGPU] Add TTI::isAmbientPhysRegUse() to allow VOP rematerilization

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

Commit message should say TII



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Comment at: llvm/lib/Target/AMDGPU/SIInstrInfo.cpp:131
+  // And implicit use of exec is not a real register read.
+  return MO.getReg() == AMDGPU::EXEC && MO.isImplicit();
+}
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This also needs to verify it's a VALU use, you could still have an implicit exec read of a scalar instruction


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https://reviews.llvm.org/D105836