1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Target/ARM/Thumb2InstrInfo.cpp b/lib/Target/ARM/Thumb2InstrInfo.cpp
index 4e82e77827..91788ac4f8 100644
--- a/lib/Target/ARM/Thumb2InstrInfo.cpp
+++ b/lib/Target/ARM/Thumb2InstrInfo.cpp
@@ -215,6 +215,13 @@ void llvm::emitT2RegPlusImmediate(MachineBasicBlock &MBB,
                                unsigned DestReg, unsigned BaseReg, int NumBytes,
                                ARMCC::CondCodes Pred, unsigned PredReg,
                                const ARMBaseInstrInfo &TII, unsigned MIFlags) {
+  if (NumBytes == 0 && DestReg != BaseReg) {
+    BuildMI(MBB, MBBI, dl, TII.get(ARM::tMOVr), DestReg)
+      .addReg(BaseReg, RegState::Kill)
+      .addImm((unsigned)Pred).addReg(PredReg).setMIFlags(MIFlags);
+    return;
+  }
+
   bool isSub = NumBytes < 0;
   if (isSub) NumBytes = -NumBytes;