Jakob Stoklund Olesen 2d60075590 Be more strict when detecting critical edges before loop splitting. ...

An exit block with a critical edge must only have predecessors in the loop, or
just before the loop. This guarantees that the inserted copies in the loop
predecessors dominate the exit block.

llvm-svn: 117144

2010-10-22 20:28:23 +00:00

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