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Commit 15ff2d6d authored by Davide Italiano's avatar Davide Italiano
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[SCCP] Zap multiple return values. 

We can replace the return values with undef if we replaced all
the call uses with a constant/undef.

Differential Revision:  https://reviews.llvm.org/D22336

llvm-svn: 276174
parent a088bce9
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