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Remove some dead code and tidy things up now that vectors use ConstantDataVector

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instead of always using ConstantVector.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149912 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2012-02-06 21:56:39 +00:00
parent 705f4813af
commit 7302d80490
9 changed files with 40 additions and 129 deletions
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15
lib/Analysis/ValueTracking.cpp
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@ -88,19 +88,8 @@ void llvm::ComputeMaskedBits(Value *V, const APInt &Mask,
return;
}
// Handle a constant vector by taking the intersection of the known bits of
// each element.
// FIXME: Remove.
if (ConstantVector *CV = dyn_cast<ConstantVector>(V)) {
KnownZero.setAllBits(); KnownOne.setAllBits();
for (unsigned i = 0, e = CV->getNumOperands(); i != e; ++i) {
APInt KnownZero2(BitWidth, 0), KnownOne2(BitWidth, 0);
ComputeMaskedBits(CV->getOperand(i), Mask, KnownZero2, KnownOne2,
TD, Depth);
KnownZero &= KnownZero2;
KnownOne &= KnownOne2;
}
return;
}
// each element. There is no real need to handle ConstantVector here, because
// we don't handle undef in any particularly useful way.
if (ConstantDataSequential *CDS = dyn_cast<ConstantDataSequential>(V)) {
// We know that CDS must be a vector of integers. Take the intersection of
// each element.