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Use new isCommutative interface, which gives us SetEQ and SetNE for free.

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Thanks fly out to Casey Carter for this fix.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4460 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2002-10-31 04:20:07 +00:00
parent f2da7241f5
commit f37c34430d
1 changed files with 3 additions and 7 deletions
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10
lib/Analysis/ValueNumbering.cpp
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@@ -129,16 +129,12 @@ static inline bool isIdenticalBinaryInst(const Instruction &I1,
I1.getOperand(1) == I2->getOperand(1)) I1.getOperand(1) == I2->getOperand(1))
return true; return true;
// If the instruction is commutative and associative, the instruction can // If the instruction is commutative, the instruction can match if the
// match if the operands are swapped! // operands are swapped!
// //
if ((I1.getOperand(0) == I2->getOperand(1) && if ((I1.getOperand(0) == I2->getOperand(1) &&
I1.getOperand(1) == I2->getOperand(0)) && I1.getOperand(1) == I2->getOperand(0)) &&
(I1.getOpcode() == Instruction::Add || I1.isCommutative())
I1.getOpcode() == Instruction::Mul ||
I1.getOpcode() == Instruction::And ||
I1.getOpcode() == Instruction::Or ||
I1.getOpcode() == Instruction::Xor))
return true; return true;
return false; return false;