Remember to clear the shadow kill flag at the same time as clearing the real

kill flag.

This could cause duplicate kill flags when the same register was used twice in a
continuous sequence of STRs.

There is no small test case. <rdar://problem/8218046>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112534 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/ARMLoadStoreOptimizer.cpp

@@ -324,6 +324,7 @@ void ARMLoadStoreOpt::MergeOpsUpdate(MachineBasicBlock &MBB,
       if (KilledRegs.count(Reg)) {
         unsigned j = Killer[Reg];
         memOps[j].MBBI->getOperand(0).setIsKill(false);
+        memOps[j].isKill = false;
       }
     }
     MBB.erase(memOps[i].MBBI);