diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog
index 4ce7ac76358..e350a13dc61 100644
--- a/gcc/lto/ChangeLog
+++ b/gcc/lto/ChangeLog
@@ -1,3 +1,9 @@
+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.
diff --git a/gcc/lto/lto.c b/gcc/lto/lto.c
index 7256ff9547b..c1567ca2ca3 100644
--- a/gcc/lto/lto.c
+++ b/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 ");