From: Richard Biener <rguenther@suse.de>
Date: Fri, 24 Jul 2020 14:50:59 +0000 (+0200)
Subject: Remove useless backedge marking
X-Git-Tag: basepoints/gcc-12~5894
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8e5584f7a1746ec1c3e187084832e5a58432ac74;p=thirdparty%2Fgcc.git

Remove useless backedge marking

I didn't find anything using EDGE_DFS_BACK in RTL infrastructure
used by var-tracking or var-tracking itself, the following removes
this computation.

2020-07-24  Richard Biener  <rguenther@suse.de>

	* var-tracking.c (variable_tracking_main_1): Remove call
	to mark_dfs_back_edges.
---

diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c
index cca75064c8b7..a345fb47eb75 100644
--- a/gcc/var-tracking.c
+++ b/gcc/var-tracking.c
@@ -10481,7 +10481,6 @@ variable_tracking_main_1 (void)
       return 0;
     }
 
-  mark_dfs_back_edges ();
   if (!vt_initialize ())
     {
       vt_finalize ();