From: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 1 Feb 2016 20:37:49 +0000 (+0000)
Subject: 	* ifcvt.c (bb_ok_for_noce_convert_multiple_sets): Return false
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=8bb6d8cde0a6b531c85c17454689cb9dc5825a58;p=thirdparty%2Fgcc.git

	* ifcvt.c (bb_ok_for_noce_convert_multiple_sets): Return false
	when count is incremented above limit, don't analyze further
	insns afterwards.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233050 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b3524271d589..a551069a23e3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,9 @@
 2016-02-01  Jakub Jelinek  <jakub@redhat.com>
 
+	* ifcvt.c (bb_ok_for_noce_convert_multiple_sets): Return false
+	when count is incremented above limit, don't analyze further
+	insns afterwards.
+
 	* omp-low.c (oacc_parse_default_dims): Avoid
 	-Wsign-compare warning, make sure value fits into int
 	rather than just unsigned int.
diff --git a/gcc/ifcvt.c b/gcc/ifcvt.c
index 53cb41f1ffa7..a50e33dc66cc 100644
--- a/gcc/ifcvt.c
+++ b/gcc/ifcvt.c
@@ -3286,15 +3286,13 @@ bb_ok_for_noce_convert_multiple_sets (basic_block test_bb,
       if (!can_conditionally_move_p (GET_MODE (dest)))
 	return false;
 
-      ++count;
+      /* FORNOW: Our cost model is a count of the number of instructions we
+	 would if-convert.  This is suboptimal, and should be improved as part
+	 of a wider rework of branch_cost.  */
+      if (++count > limit)
+	return false;
     }
 
-  /* FORNOW: Our cost model is a count of the number of instructions we
-     would if-convert.  This is suboptimal, and should be improved as part
-     of a wider rework of branch_cost.  */
-  if (count > limit)
-    return false;
-
   return count > 1;
 }