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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45170 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Christopher Lamb 2007-12-18 20:33:11 +00:00
parent fd8b1fd7f6
commit 1d87cb1c12
1 changed files with 2 additions and 4 deletions
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6
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -2151,14 +2151,12 @@ Instruction *InstCombiner::visitAdd(BinaryOperator &I) {
if (match(FV, m_ConstantInt(C1)) && C1->getValue() == 0 && if (match(FV, m_ConstantInt(C1)) && C1->getValue() == 0 &&
match(TV, m_Sub(m_ConstantInt(C2), m_Value(A))) && match(TV, m_Sub(m_ConstantInt(C2), m_Value(A))) &&
A == Other) { A == Other) {
// We managed to fold the add into the true select value, // We managed to fold the add into the true select value.
// picking up a simplified condition, if available.
return new SelectInst(SI->getCondition(), C2, A); return new SelectInst(SI->getCondition(), C2, A);
} else if (match(TV, m_ConstantInt(C1)) && C1->getValue() == 0 && } else if (match(TV, m_ConstantInt(C1)) && C1->getValue() == 0 &&
match(FV, m_Sub(m_ConstantInt(C2), m_Value(A))) && match(FV, m_Sub(m_ConstantInt(C2), m_Value(A))) &&
A == Other) { A == Other) {
// We managed to fold the add into the false select value, // We managed to fold the add into the false select value.
// picking up a simplified condition, if available.
return new SelectInst(SI->getCondition(), A, C2); return new SelectInst(SI->getCondition(), A, C2);
} }
} }