Do not allow to run GIMPLE or RTL test-cases w/ LTO (PR lto/79625).

2017-02-28  Martin Liska  <mliska@suse.cz>

	PR lto/79625
	* read-rtl-function.c (function_reader::handle_unknown_directive):
	Bail out when one uses -flto.

From-SVN: r245790

gcc/ChangeLog

 2017-02-28  Martin Liska  <mliska@suse.cz>
 
+	PR lto/79625
+	* read-rtl-function.c (function_reader::handle_unknown_directive):
+	Bail out when one uses -flto.
+
+2017-02-28  Martin Liska  <mliska@suse.cz>
+
 	* common.opt: Replace space with tabular for options of <number>
 	type.
 	* config/i386/i386.opt: Show <number> value for

gcc/read-rtl-function.c

@@ -405,6 +405,9 @@ function_reader::handle_unknown_directive (file_location start_loc,
   if (strcmp (name, "function"))
     fatal_at (start_loc, "expected 'function'");
 
+  if (flag_lto)
+    error ("%<__RTL%> function cannot be compiled with %<-flto%>");
+
   parse_function ();
 }