diff options
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index ede88f28ff..9d71427968 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -171,12 +171,15 @@ bool X86InstrInfo::isReallySideEffectFree(MachineInstr *MI) const { case X86::MOV32rm: if (MI->getOperand(1).isRegister()) { unsigned Reg = MI->getOperand(1).getReg(); + const X86Subtarget &ST = TM.getSubtarget<X86Subtarget>(); // Loads from global addresses which aren't redefined in the function are // side effect free. if (Reg != 0 && MRegisterInfo::isVirtualRegister(Reg) && MI->getOperand(2).isImm() && MI->getOperand(3).isReg() && - MI->getOperand(4).isGlobal() && MI->getOperand(2).getImm() == 1 && + MI->getOperand(4).isGlobal() && + ST.GVRequiresExtraLoad(MI->getOperand(4).getGlobal(), TM, false) && + MI->getOperand(2).getImm() == 1 && MI->getOperand(3).getReg() == 0) return true; } |