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Fix a typo in ValueTracking that's causing instcombine to delete needed shift instructions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98416 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2010-03-13 02:20:29 +00:00
parent bc733f54c0
commit 0af20d847a
2 changed files with 21 additions and 1 deletions
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2
lib/Analysis/ValueTracking.cpp
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@@ -779,7 +779,7 @@ unsigned llvm::ComputeNumSignBits(Value *V, const TargetData *TD,
for (unsigned i = 1, e = PN->getNumIncomingValues(); i != e; ++i) {
if (Tmp == 1) return Tmp;
Tmp = std::min(Tmp,
ComputeNumSignBits(PN->getIncomingValue(1), TD, Depth+1));
ComputeNumSignBits(PN->getIncomingValue(i), TD, Depth+1));
}
return Tmp;
}