From: law <law@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 22 Nov 2013 07:36:12 +0000 (+0000)
Subject:         * tree-ssa-threadedge.c (thread_across_edge): Mark the start of
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=baec912e181db7957fed194ba9a0cdcacdf47d09;p=thirdparty%2Fgcc.git

    * tree-ssa-threadedge.c (thread_across_edge): Mark the start of
        the jump thread path properly.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@205245 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3aa74c0329b5..50c615a82d58 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2013-11-22  Jeff Law  <law@redhat.com>
+
+	* tree-ssa-threadedge.c (thread_across_edge): Mark the start of the
+	jump thread path properly.
+
 2013-11-22  Trevor Saunders  <tsaunders@mozilla.com>
 
 	* vec.h (auto_vec): New class.
diff --git a/gcc/tree-ssa-threadedge.c b/gcc/tree-ssa-threadedge.c
index a1448757ead7..7600d7b9914f 100644
--- a/gcc/tree-ssa-threadedge.c
+++ b/gcc/tree-ssa-threadedge.c
@@ -1078,8 +1078,9 @@ thread_across_edge (gimple dummy_cond,
      
 	/* Avoid threading to any block we have already visited.  */
 	bitmap_clear (visited);
-	bitmap_set_bit (visited, taken_edge->dest->index);
+	bitmap_set_bit (visited, e->src->index);
 	bitmap_set_bit (visited, e->dest->index);
+	bitmap_set_bit (visited, taken_edge->dest->index);
         vec<jump_thread_edge *> *path = new vec<jump_thread_edge *> ();
 
 	/* Record whether or not we were able to thread through a successor