[PATCH] D68184: AMDGPU: Propagate undef flag during pre-RA exec mask optimizations

[Nicolai Hähnle via Phabricator via llvm-commits]

nhaehnle marked 2 inline comments as done.
nhaehnle added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/SIOptimizeExecMaskingPreRA.cpp:262
+          .addReg(ExecReg)
+          .addReg(CCReg, CC->isUndef() ? RegState::Undef : 0, CC->getSubReg());
   And->eraseFromParent();
----------------
arsenm wrote:
> I think there’s a getUndef
I assume you mean getRegStateUndef.


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  https://reviews.llvm.org/D68184/new/

https://reviews.llvm.org/D68184