Fix PR325

llvm-svn: 13081
This commit is contained in:
Chris Lattner 2004-04-20 20:26:03 +00:00
parent 5a1e3f099f
commit 602146eea1

View File

@ -132,7 +132,7 @@ bool LoopUnroll::visitLoop(Loop *L) {
if (!TripCountC) return Changed; // Must have constant trip count!
unsigned TripCount = TripCountC->getRawValue();
if (TripCount != TripCountC->getRawValue())
if (TripCount != TripCountC->getRawValue() || TripCount == 0)
return Changed; // More than 2^32 iterations???
unsigned LoopSize = ApproximateLoopSize(L);