gencodes.c (main): Make LAST_INSN_CODE higher than any insn code, rather than…

gencodes.c (main): Make LAST_INSN_CODE higher than any insn code, rather than any named insn's code.

gcc/
	* gencodes.c (main): Make LAST_INSN_CODE higher than any insn code,
	rather than any named insn's code.

From-SVN: r210963

gcc/ChangeLog

+2014-05-27  Richard Sandiford  <rdsandiford@googlemail.com>
+
+	* gencodes.c (main): Make LAST_INSN_CODE higher than any insn code,
+	rather than any named insn's code.
+
 2014-05-27  Georg-Johann Lay  <avr@gjlay.de>
 
 	PR libgcc/61152

gcc/gencodes.c

@@ -50,6 +50,7 @@ int
 main (int argc, char **argv)
 {
   rtx desc;
+  int last = 1;
 
   progname = "gencodes";
 
@@ -82,13 +83,16 @@ enum insn_code {\n\
 	break;
 
       if (GET_CODE (desc) == DEFINE_INSN || GET_CODE (desc) == DEFINE_EXPAND)
-	gen_insn (desc, insn_code_number);
+	{
+	  gen_insn (desc, insn_code_number);
+	  last = insn_code_number + 1;
+	}
     }
 
-  puts ("  LAST_INSN_CODE\n\
+  printf ("  LAST_INSN_CODE = %d\n\
 };\n\
 \n\
-#endif /* GCC_INSN_CODES_H */");
+#endif /* GCC_INSN_CODES_H */\n", last);
 
   if (ferror (stdout) || fflush (stdout) || fclose (stdout))
     return FATAL_EXIT_CODE;