Delete the allocated vector.

llvm-svn: 118644
diff --git a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 8ae5e03..bb7494ba 100644
--- a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -178,6 +178,10 @@
       break;
     }
   }
+  ~ARMOperand() {
+    if (isRegList())
+      delete RegList.Registers;
+  }
 
   /// getStartLoc - Get the location of the first token of this operand.
   SMLoc getStartLoc() const { return StartLoc; }