[PATCH] PR78879

[Yuan, Pengfei]

Hi,

The following patch fixes
  https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78879

There are some other invocations of unordered_remove in
tree-ssa-threadupdate.c, which may also need to be replaced
with ordered_remove.

Regards,
Yuan, Pengfei


2016-12-22  Yuan Pengfei  <ypf@pku.edu.cn>

	PR middle-end/78879
	* tree-ssa-threadupdate.c (mark_threaded_blocks): Replace
	unordered_remove with ordered_remove.


diff --git a/gcc/tree-ssa-threadupdate.c b/gcc/tree-ssa-threadupdate.c
index 5a5f8df..b2e6d7a 100644
--- a/gcc/tree-ssa-threadupdate.c
+++ b/gcc/tree-ssa-threadupdate.c
@@ -2144,7 +2144,7 @@ mark_threaded_blocks (bitmap threaded_blocks)
 	    }
 	  else
 	    {
-	      paths.unordered_remove (i);
+	      paths.ordered_remove (i);
 	      if (dump_file && (dump_flags & TDF_DETAILS))
 		dump_jump_thread_path (dump_file, *path, false);
 	      delete_jump_thread_path (path);
@@ -2180,7 +2180,7 @@ mark_threaded_blocks (bitmap threaded_blocks)
 	  else
 	    {
 	      e->aux = NULL;
-	      paths.unordered_remove (i);
+	      paths.ordered_remove (i);
 	      if (dump_file && (dump_flags & TDF_DETAILS))
 		dump_jump_thread_path (dump_file, *path, false);
 	      delete_jump_thread_path (path);