Davide Italiano 15ff2d6d0c [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

2016-07-20 20:17:13 +00:00

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