re PR lto/78129 (-Werror=suggest-final-types leads to -ENOSPC.)

2016-10-31  Richard Biener  <rguenther@suse.de>

	PR lto/78129
	* lto.c (do_whole_program_analysis): Bail out after errors
	from WPA analysis.

From-SVN: r241698

gcc/lto/ChangeLog

+2016-10-31  Richard Biener  <rguenther@suse.de>
+
+	PR lto/78129
+	* lto.c (do_whole_program_analysis): Bail out after errors
+	from WPA analysis.
+
 2016-09-21  Kugan Vivekanandarajah  <kuganv@linaro.org>
 
 	* lto-partition.c: Include tree-vrp.h.

gcc/lto/lto.c

@@ -3092,6 +3092,10 @@ do_whole_program_analysis (void)
 
   execute_ipa_pass_list (g->get_passes ()->all_regular_ipa_passes);
 
+  /* When WPA analysis raises errors, do not bother to output anything.  */
+  if (seen_error ())
+    return;
+
   if (symtab->dump_file)
     {
       fprintf (symtab->dump_file, "Optimized ");