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Back out 60748 for now. It's breaking SPASS, 254.gap, and 464.h264ref. 

llvm-svn: 60776
This commit is contained in:
Evan Cheng 2008-12-09 18:21:49 +00:00
parent 74a24b260e
commit 8f81e4e31b
1 changed files with 1 additions and 5 deletions
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6
llvm/lib/Analysis/ScalarEvolution.cpp
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@ -2924,12 +2924,8 @@ bool ScalarEvolutionsImpl::potentialInfiniteLoop(SCEV *Stride, SCEV *RHS,
if (!R)
return true;
if (isSigned) {
if (SC->getValue()->isOne())
return R->getValue()->isMaxValue(true);
if (isSigned)
return true; // XXX: because we don't have an sdiv scev.
}
// If negative, it wraps around every iteration, but we don't care about that.
APInt S = SC->getValue()->getValue().abs();