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More styalistic changes. No functionality change.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60401 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2008-12-02 06:18:11 +00:00
parent b6bbe6320b
commit 29976b9e12
1 changed files with 12 additions and 15 deletions
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27
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -4438,22 +4438,19 @@ Instruction *InstCombiner::FoldOrWithConstants(BinaryOperator &I, Value *Op,
if (!CI1) return 0;
Value *V1 = 0, *C2 = 0;
if (match(Op, m_And(m_Value(V1), m_Value(C2)))) {
ConstantInt *CI2 = dyn_cast<ConstantInt>(C2);
if (!CI2) return 0;
if (!match(Op, m_And(m_Value(V1), m_ConstantInt(C2)))) return 0;
APInt Xor = CI1->getValue() ^ CI2->getValue();
if (Xor.isAllOnesValue()) {
if (V1 == B) {
Instruction *NewOp =
InsertNewInstBefore(BinaryOperator::CreateAnd(A, CI1), I);
return BinaryOperator::CreateOr(NewOp, B);
} else if (V1 == A) {
Instruction *NewOp =
InsertNewInstBefore(BinaryOperator::CreateAnd(B, CI1), I);
return BinaryOperator::CreateOr(NewOp, A);
}
}
APInt Xor = CI1->getValue() ^ CI2->getValue();
if (!Xor.isAllOnesValue()) return 0;
if (V1 == B) {
Instruction *NewOp =
InsertNewInstBefore(BinaryOperator::CreateAnd(A, CI1), I);
return BinaryOperator::CreateOr(NewOp, B);
} else if (V1 == A) {
Instruction *NewOp =
InsertNewInstBefore(BinaryOperator::CreateAnd(B, CI1), I);
return BinaryOperator::CreateOr(NewOp, A);
}
return 0;