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Fixed an assertion failure for tracking sext of a vector of integers

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90290 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mon P Wang
2009-12-02 04:59:58 +00:00
parent e3a18de4f6
commit 69a008075b
2 changed files with 15 additions and 1 deletions
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2
lib/Analysis/ValueTracking.cpp
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@ -659,7 +659,7 @@ unsigned llvm::ComputeNumSignBits(Value *V, const TargetData *TD,
switch (Operator::getOpcode(V)) {
default: break;
case Instruction::SExt:
Tmp = TyBits-cast<IntegerType>(U->getOperand(0)->getType())->getBitWidth();
Tmp = TyBits - U->getOperand(0)->getType()->getScalarSizeInBits();
return ComputeNumSignBits(U->getOperand(0), TD, Depth+1) + Tmp;
case Instruction::AShr: