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Simplify code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7783 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -241,7 +241,8 @@ static inline Value *dyn_castFoldableMul(Value *V) {
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// dyn_castMaskingAnd - If this value is an And instruction masking a value with
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// a constant, return the constant being anded with.
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//
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static inline Constant *dyn_castMaskingAnd(Value *V) {
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template<class ValueType>
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static inline Constant *dyn_castMaskingAnd(ValueType *V) {
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if (Instruction *I = dyn_cast<Instruction>(V))
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if (I->getOpcode() == Instruction::And)
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return dyn_cast<Constant>(I->getOperand(1));
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@ -613,16 +614,12 @@ Instruction *InstCombiner::visitOr(BinaryOperator &I) {
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}
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// (A & C1)|(A & C2) == A & (C1|C2)
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if (BinaryOperator *BO0 = dyn_cast<BinaryOperator>(Op0))
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if (BinaryOperator *BO1 = dyn_cast<BinaryOperator>(Op1))
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if (BO0->getOperand(0) == BO1->getOperand(0) &&
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BO0->getOpcode() == Instruction::And &&
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BO1->getOpcode() == Instruction::And)
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if (ConstantIntegral *C0 =
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dyn_cast<ConstantIntegral>(BO0->getOperand(1)))
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if (ConstantIntegral *C1 =
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dyn_cast<ConstantIntegral>(BO1->getOperand(1)))
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return BinaryOperator::create(Instruction::And, BO0->getOperand(0),
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if (Instruction *LHS = dyn_cast<BinaryOperator>(Op0))
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if (Instruction *RHS = dyn_cast<BinaryOperator>(Op1))
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if (LHS->getOperand(0) == RHS->getOperand(0))
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if (Constant *C0 = dyn_castMaskingAnd(LHS))
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if (Constant *C1 = dyn_castMaskingAnd(RHS))
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return BinaryOperator::create(Instruction::And, LHS->getOperand(0),
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*C0 | *C1);
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Value *Op0NotVal = dyn_castNotVal(Op0);
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