IR: Factor out replaceUsesOfWithOnConstantImpl(), NFC

[oota-llvm.git] / lib / IR / Instruction.cpp

diff --git a/lib/IR/Instruction.cpp b/lib/IR/Instruction.cpp
index abb4e455765a3b60a5323e615a268902406f2688..86421c4ae9ffcfd6319efde23da9c04e58d4e216 100644 (file)
--- a/lib/IR/Instruction.cpp
+++ b/lib/IR/Instruction.cpp
@@ -300,6 +300,7 @@ static bool haveSameSpecialState(const Instruction *I1, const Instruction *I2,
            FI->getSynchScope() == cast<FenceInst>(I2)->getSynchScope();
   if (const AtomicCmpXchgInst *CXI = dyn_cast<AtomicCmpXchgInst>(I1))
     return CXI->isVolatile() == cast<AtomicCmpXchgInst>(I2)->isVolatile() &&
+           CXI->isWeak() == cast<AtomicCmpXchgInst>(I2)->isWeak() &&
            CXI->getSuccessOrdering() ==
                cast<AtomicCmpXchgInst>(I2)->getSuccessOrdering() &&
            CXI->getFailureOrdering() ==