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Enable KnownZero/One.clear().

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35093 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Zhou Sheng 2007-03-14 03:21:24 +00:00
parent 507e639b2e
commit 9670445cd4
1 changed files with 2 additions and 2 deletions
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4
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -1598,8 +1598,8 @@ bool InstCombiner::SimplifyDemandedBits(Value *V, APInt DemandedMask,
return false;
}
//KnownZero.clear();
//KnownOne.clear();
KnownZero.clear();
KnownOne.clear();
if (!V->hasOneUse()) { // Other users may use these bits.
if (Depth != 0) { // Not at the root.
// Just compute the KnownZero/KnownOne bits to simplify things downstream.