From 91386800eaa94eb2048d631eab95cb7327a8e553 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Thu, 26 Oct 2006 18:27:26 +0000 Subject: Fix Transforms/InstCombine/2006-10-26-VectorReassoc.ll llvm-svn: 31200 --- llvm/lib/VMCore/Instruction.cpp | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'llvm/lib/VMCore/Instruction.cpp') diff --git a/llvm/lib/VMCore/Instruction.cpp b/llvm/lib/VMCore/Instruction.cpp index c5e8e303545..9b5fa714ea0 100644 --- a/llvm/lib/VMCore/Instruction.cpp +++ b/llvm/lib/VMCore/Instruction.cpp @@ -172,11 +172,12 @@ bool Instruction::isIdenticalTo(Instruction *I) const { /// applied to floating point types. /// bool Instruction::isAssociative(unsigned Opcode, const Type *Ty) { - if (Opcode == Add || Opcode == Mul || - Opcode == And || Opcode == Or || Opcode == Xor) { - // Floating point operations do not associate! - return !Ty->isFloatingPoint(); - } + if (Opcode == And || Opcode == Or || Opcode == Xor) + return true; + + // Add/Mul reassociate unless they are FP or FP vectors. + if (Opcode == Add || Opcode == Mul) + return !Ty->isFPOrFPVector(); return 0; } -- cgit v1.2.3