diff options
| -rw-r--r-- | lib/Transforms/InstCombine/InstCombineMulDivRem.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp b/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp index 65a64b8321..2119115ca7 100644 --- a/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp +++ b/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp @@ -467,7 +467,7 @@ Instruction *InstCombiner::visitUDiv(BinaryOperator &I) { Value *X; ConstantInt *C1; if (match(Op0, m_LShr(m_Value(X), m_ConstantInt(C1)))) { - APInt NC = C2->getValue().shl(C1->getZExtValue()); + APInt NC = C2->getValue().shl(C1->getLimitedValue(C1->getBitWidth()-1)); return BinaryOperator::CreateUDiv(X, Builder->getInt(NC)); } } @@ -548,7 +548,7 @@ Instruction *InstCombiner::visitSDiv(BinaryOperator &I) { Value *X; ConstantInt *C1; if (match(Op0, m_AShr(m_Value(X), m_ConstantInt(C1)))) { - APInt NC = C2->getValue().shl(C1->getZExtValue()); + APInt NC = C2->getValue().shl(C1->getLimitedValue(C1->getBitWidth()-1)); return BinaryOperator::CreateSDiv(X, Builder->getInt(NC)); } } |