mn10300.c (mn10300_regno_in_class_p): Check for reg_renumber returning an INVALID_REGNUM.

	* config/mn10300/mn10300.c (mn10300_regno_in_class_p): Check for
	reg_renumber returning an INVALID_REGNUM.

From-SVN: r169432

gcc/ChangeLog

+2011-01-31  Nick Clifton  <nickc@redhat.com>
+
+	* config/mn10300/mn10300.c (mn10300_regno_in_class_p): Check for
+	reg_renumber returning an INVALID_REGNUM.
+
 2011-01-31  Alexandre Oliva  <aoliva@redhat.com>
 
 	PR libgcj/44341

gcc/config/mn10300/mn10300.c

@@ -1996,6 +1996,8 @@ mn10300_regno_in_class_p (unsigned regno, int rclass, bool strict)
       if (!reg_renumber)
 	return false;
       regno = reg_renumber[regno];
+      if (regno == INVALID_REGNUM)
+	return false;
     }
   return TEST_HARD_REG_BIT (reg_class_contents[rclass], regno);
 }