Dan Gohman 6b1e2a829d Teach ScalarEvolution how to compute a tripcount for a loop with ...

true or false as its exit condition. These are usually eliminated by
SimplifyCFG, but the may be left around during a pass which wishes
to preserve the CFG.

llvm-svn: 96683

2010-02-19 18:12:07 +00:00

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