msp430.c (msp430_output_labelref): Prepend user_label_prefix to name.

	* config/msp430/msp430.c (msp430_output_labelref): Prepend
	user_label_prefix to name.

From-SVN: r260983

gcc/ChangeLog

 2018-05-30  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
 
+	* config/msp430/msp430.c (msp430_output_labelref): Prepend
+	user_label_prefix to name.
+
 	* tree-core.h: Update comment about the format of NAME string
 	passed to handler in attribute_spec.
 

gcc/config/msp430/msp430.c

@@ -3416,6 +3416,9 @@ msp430_output_labelref (FILE *file, const char *name)
 	}
     }
 
+  if (user_label_prefix[0] != 0)
+    fputs (user_label_prefix, file);
+
   fputs (name, file);
 }