Justin Bogner 06bd6d04e0 CodeGen: Introduce CodeGenPGO::setCurrentRegionUnreachable ...

There are a number of places where we do PGO.setCurrentRegionCount(0)
directly after an unconditional branch. Give this operation a name so
that it's clearer why we're doing this.

llvm-svn: 199138

2014-01-13 21:24:18 +00:00

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