diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp index 145f80ae74b..5f0a923f996 100644 --- a/lib/CodeGen/TwoAddressInstructionPass.cpp +++ b/lib/CodeGen/TwoAddressInstructionPass.cpp @@ -330,8 +330,10 @@ bool TwoAddressInstructionPass::runOnMachineFunction(MachineFunction &MF) { InstructionRearranged: const TargetRegisterClass* rc = MF.getRegInfo().getRegClass(regA); MachineInstr *Orig = MRI->getVRegDef(regB); + bool SawStore = false; - if (EnableReMat && Orig && TII->isTriviallyReMaterializable(Orig)) { + if (EnableReMat && Orig && Orig->isSafeToMove(TII, SawStore) && + TII->isTriviallyReMaterializable(Orig)) { TII->reMaterialize(*mbbi, mi, regA, Orig); ReMattedInstrs.insert(Orig); } else {