Validate that Init value is within range defined by IntegerRange.

2017-07-27  Martin Liska  <mliska@suse.cz>

	* opt-functions.awk: Add validation of value of Init.
	* optc-gen.awk: Pass new argument.

From-SVN: r250625

gcc/ChangeLog

@@ -5,6 +5,11 @@
 
 2017-07-27  Martin Liska  <mliska@suse.cz>
 
+	* opt-functions.awk: Add validation of value of Init.
+	* optc-gen.awk: Pass new argument.
+
+2017-07-27  Martin Liska  <mliska@suse.cz>
+
 	* auto-profile.c (autofdo_source_profile::update_inlined_ind_target):
 	Fix wrong condition.
 

gcc/opt-functions.awk

@@ -314,11 +314,13 @@ function search_var_name(name, opt_numbers, opts, flags, n_opts)
     return ""
 }
 
-function integer_range_info(range_option)
+function integer_range_info(range_option, init, option)
 {
     if (range_option != "") {
 	start = nth_arg(0, range_option);
 	end = nth_arg(1, range_option);
+	if (init != "" && init != "-1" && (init < start || init > end))
+	  print "#error initial value " init " of '" option "' must be in range [" start "," end "]"
 	return start ", " end
     }
     else

gcc/optc-gen.awk

@@ -400,7 +400,8 @@ for (i = 0; i < n_opts; i++) {
 		       "    0, %s,\n",
 		       cl_flags, cl_bit_fields)
 	printf("    %s, %s, %s }%s\n", var_ref(opts[i], flags[i]),
-	       var_set(flags[i]), integer_range_info(opt_args("IntegerRange", flags[i])), comma)
+	       var_set(flags[i]), integer_range_info(opt_args("IntegerRange", flags[i]),
+		    opt_args("Init", flags[i]), opts[i]), comma)
 }
 
 print "};"