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

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60776 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2008-12-09 18:21:49 +00:00
parent f84802880c
commit a9d50c00f1
1 changed files with 1 additions and 5 deletions
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6
lib/Analysis/ScalarEvolution.cpp
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@ -2924,12 +2924,8 @@ bool ScalarEvolutionsImpl::potentialInfiniteLoop(SCEV *Stride, SCEV *RHS,
if (!R) if (!R)
return true; return true;
if (isSigned) { if (isSigned)
if (SC->getValue()->isOne())
return R->getValue()->isMaxValue(true);
return true; // XXX: because we don't have an sdiv scev. 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. // If negative, it wraps around every iteration, but we don't care about that.
APInt S = SC->getValue()->getValue().abs(); APInt S = SC->getValue()->getValue().abs();