Justin Lebar 7dba2e0d0c [ifcnv] Don't duplicate blocks that contain convergent instructions. ...

It's unsafe to duplicate blocks that contain convergent instructions
during ifcnv.  See the patch for details.

Reviewers: hfinkel

Differential Revision: http://reviews.llvm.org/D17518

llvm-svn: 266404

2016-04-15 01:38:41 +00:00

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