[PATCH] D29489: Optimize SETCC + VSEL of incompatible or illegal types

Eli Friedman via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Feb 7 11:18:15 PST 2017


efriedma added a comment.

I think we'll eliminate the redundant sign-extend if you extend SelectionDAG::ComputeNumSignBits to handle SIGN_EXTEND_VECTOR_INREG the same way it handles SIGN_EXTEND.


https://reviews.llvm.org/D29489





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