Sanjoy Das 52bfa0faa4 [SCEV] Fix PR25369
Have `getConstantEvolutionLoopExitValue` work correctly with multiple
entry loops.

As far as I can tell, `getConstantEvolutionLoopExitValue` never did the
right thing for multiple entry loops; and before r249712 it would
silently return an incorrect answer.  r249712 changed SCEV to fail an
assert on a multiple entry loop, and this change fixes the underlying
issue.

llvm-svn: 251770
2015-11-02 02:06:01 +00:00
..
2015-10-28 12:30:08 +00:00
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2015-11-02 02:06:01 +00:00