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Fix Transforms/InstCombine/2006-10-26-VectorReassoc.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31200 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -172,11 +172,12 @@ bool Instruction::isIdenticalTo(Instruction *I) const {
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/// applied to floating point types.
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///
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bool Instruction::isAssociative(unsigned Opcode, const Type *Ty) {
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if (Opcode == Add || Opcode == Mul ||
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Opcode == And || Opcode == Or || Opcode == Xor) {
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// Floating point operations do not associate!
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return !Ty->isFloatingPoint();
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}
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if (Opcode == And || Opcode == Or || Opcode == Xor)
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return true;
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// Add/Mul reassociate unless they are FP or FP vectors.
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if (Opcode == Add || Opcode == Mul)
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return !Ty->isFPOrFPVector();
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return 0;
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}
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