From: marxin <marxin@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 12 Jul 2016 14:54:52 +0000 (+0000)
Subject: Fix PR rtl-optimization/71634
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=1138783ec9f31bdd09548e72296f804d6ad6cc5c;p=thirdparty%2Fgcc.git

Fix PR rtl-optimization/71634

	* ira-build.c (mark_loops_for_removal): Properly iterate
	loops.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@238247 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8776f744ce5a..509e855e95b2 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-07-12  Martin Liska  <mliska@suse.cz>
+
+	* ira-build.c (mark_loops_for_removal): Properly iterate
+	loops.
+
 2016-07-12  Steven Bosscher  <steven@gcc.gnu.org>
 	Richard Biener  <rguenther@suse.de>
 
diff --git a/gcc/ira-build.c b/gcc/ira-build.c
index 37aa18548a6e..caa770e849f0 100644
--- a/gcc/ira-build.c
+++ b/gcc/ira-build.c
@@ -2251,7 +2251,7 @@ mark_loops_for_removal (void)
 	     );
       }
   qsort (sorted_loops, n, sizeof (ira_loop_tree_node_t), loop_compare_func);
-  for (i = 0; n - i + 1 > IRA_MAX_LOOPS_NUM; i++)
+  for (i = 0; i < n - IRA_MAX_LOOPS_NUM; i++)
     {
       sorted_loops[i]->to_remove_p = true;
       if (internal_flag_ira_verbose > 1 && ira_dump_file != NULL)