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Author SHA1 Message Date
Adam Nemet 8b47e0d0ea [LoopVersioning] Relax an assert for LCSSA PHIs 
When you have multiple LCSSA (single-operand) PHIs that are converted
into two-operand PHIs due to versioning, only assert that the PHI
currently being converted has a single operand.  I.e. we don't want to
check PHIs that were converted earlier in the loop.

Fixes PR27023.

Thanks to Karl-Johan Karlsson for the minimized testcase!

llvm-svn: 264081
 2016-03-22 18:38:15 +00:00