MIPS REGISTER_PREFIX definition

gcc/

	* config/mips/mips.h (REGISTER_PREFIX): Define macro.

From-SVN: r213484

gcc/ChangeLog

+2014-08-01  Matthew Fortune  <matthew.fortune@imgtec.com>
+
+	* config/mips/mips.h (REGISTER_PREFIX): Define macro.
+
 2014-08-01  James Greenhalgh  <james.greenhalgh@arm.com>
 
 	PR regression/61510

gcc/config/mips/mips.h

@@ -1266,6 +1266,12 @@ struct mips_cpu_info {
 /* By default, turn on GDB extensions.  */
 #define DEFAULT_GDB_EXTENSIONS 1
 
+/* Registers may have a prefix which can be ignored when matching
+   user asm and register definitions.  */
+#ifndef REGISTER_PREFIX
+#define REGISTER_PREFIX    "$"
+#endif
+
 /* Local compiler-generated symbols must have a prefix that the assembler
    understands.   By default, this is $, although some targets (e.g.,
    NetBSD-ELF) need to override this.  */