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[SCEV][NFC] Fix a typo in a comment.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242834 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sanjoy Das 2015-07-21 20:59:22 +00:00
parent c22eb2bea6
commit 52509c07e5
1 changed files with 6 additions and 6 deletions
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12
lib/Analysis/ScalarEvolution.cpp
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@ -4744,12 +4744,12 @@ void ScalarEvolution::forgetValue(Value *V) {
}
/// getExact - Get the exact loop backedge taken count considering all loop
/// exits. A computable result can only be return for loops with a single exit.
/// Returning the minimum taken count among all exits is incorrect because one
/// of the loop's exit limit's may have been skipped. HowFarToZero assumes that
/// the limit of each loop test is never skipped. This is a valid assumption as
/// long as the loop exits via that test. For precise results, it is the
/// caller's responsibility to specify the relevant loop exit using
/// exits. A computable result can only be returned for loops with a single
/// exit. Returning the minimum taken count among all exits is incorrect
/// because one of the loop's exit limit's may have been skipped. HowFarToZero
/// assumes that the limit of each loop test is never skipped. This is a valid
/// assumption as long as the loop exits via that test. For precise results, it
/// is the caller's responsibility to specify the relevant loop exit using
/// getExact(ExitingBlock, SE).
const SCEV *
ScalarEvolution::BackedgeTakenInfo::getExact(ScalarEvolution *SE) const {