r120333 changed the opcode for the Thumb1 stuff from ARM::tMOVr to

ARM::tMOVgpr2gpr. But this check didn't change. As a result, we were getting
misaligned references to the jump table from an ADR instruction.

There is a test case, but unfortunately it's sensitive to random code changes.

<rdar://problem/8782223>

llvm-svn: 122131

llvm/lib/Target/ARM/ARMAsmPrinter.cpp

@@ -1025,7 +1025,7 @@ void ARMAsmPrinter::EmitInstruction(const MachineInstr *MI) {
     OutStreamer.EmitInstruction(TmpInst);
 
     // Make sure the Thumb jump table is 4-byte aligned.
-    if (Opc == ARM::tMOVr)
+    if (Opc == ARM::tMOVgpr2gpr)
       EmitAlignment(2);
 
     // Output the data for the jump table itself