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-rw-r--r--lib/Transforms/Scalar/InstructionCombining.cpp3
1 files changed, 0 insertions, 3 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index d93b6432e6..7288809195 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -784,9 +784,6 @@ static void ComputeMaskedBits(Value *V, const APInt &Mask, APInt& KnownZero,
KnownZero = APIntOps::lshr(KnownZero, ShiftAmt);
KnownOne = APIntOps::lshr(KnownOne, ShiftAmt);
- // Handle the sign bits and adjust to where it is now in the mask.
- APInt SignBit(APInt::getSignBit(BitWidth).lshr(ShiftAmt));
-
APInt HighBits(APInt::getHighBitsSet(BitWidth, ShiftAmt));
if (KnownZero[BitWidth-ShiftAmt-1]) // New bits are known zero.
KnownZero |= HighBits;