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Check if mul can overflow during BNDCHK simplification #7575

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Check if mul can overflow during BNDCHK simplification #7575

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12 changes: 8 additions & 4 deletions compiler/optimizer/OMRSimplifierHandlers.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -17246,8 +17246,10 @@ TR::Node *bndchkSimplifier(TR::Node * node, TR::Block * block, TR::Simplifier *
}
}
else if (boundChild->getOpCode().isLoadConst() &&
(indexChild->getOpCode().isMul() && !isNodeMulHigh(indexChild) &&
indexChild->getSecondChild()->getOpCode().isLoadConst()))
(indexChild->getOpCode().isMul() &&
!isNodeMulHigh(indexChild) &&
indexChild->cannotOverflow() &&
indexChild->getSecondChild()->getOpCode().isLoadConst()))
{
int32_t k1 = boundChild->getInt();
int32_t k2 = indexChild->getSecondChild()->getInt();
Expand Down Expand Up @@ -17581,8 +17583,10 @@ TR::Node *bndchkwithspinechkSimplifier(TR::Node * node, TR::Block * block, TR::S
}
}
else if (boundChild->getOpCode().isLoadConst() &&
(indexChild->getOpCode().isMul() && !isNodeMulHigh(indexChild) &&
indexChild->getSecondChild()->getOpCode().isLoadConst()))
(indexChild->getOpCode().isMul() &&
!isNodeMulHigh(indexChild) &&
indexChild->cannotOverflow() &&
indexChild->getSecondChild()->getOpCode().isLoadConst()))
{
int32_t k1 = boundChild->getInt();
int32_t k2 = indexChild->getSecondChild()->getInt();
Expand Down