From: dberlin <dberlin@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 18 May 2005 13:29:38 +0000 (+0000)
Subject: 2005-05-18  Daniel Berlin  <dberlin@dberlin.org>
X-Git-Tag: upstream/4.9.2~61084
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6e81a3696568402c74c9ab8440e8434c4f71a9cb;p=platform%2Fupstream%2Flinaro-gcc.git

2005-05-18  Daniel Berlin  <dberlin@dberlin.org>

	* cfgrtl.c (purge_dead_edges): Don't remove fake edges.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@99897 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 11b9bc3..26c1162 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,4 +1,8 @@
 2005-05-18  Daniel Berlin  <dberlin@dberlin.org>
+
+	* cfgrtl.c (purge_dead_edges): Don't remove fake edges.
+
+2005-05-18  Daniel Berlin  <dberlin@dberlin.org>
 	
 	Fix PR tree-optimization/21407
 
diff --git a/gcc/cfgrtl.c b/gcc/cfgrtl.c
index 3ceca75..42761ca 100644
--- a/gcc/cfgrtl.c
+++ b/gcc/cfgrtl.c
@@ -2428,9 +2428,12 @@ purge_dead_edges (basic_block bb)
   if (!found)
     return purged;
 
+  /* Remove all but the fake and fallthru edges.  The fake edge may be
+     the only successor for this block in the case of noreturn
+     calls.  */
   for (ei = ei_start (bb->succs); (e = ei_safe_edge (ei)); )
     {
-      if (!(e->flags & EDGE_FALLTHRU))
+      if (!(e->flags & (EDGE_FALLTHRU | EDGE_FAKE)))
 	{
 	  bb->flags |= BB_DIRTY;
 	  remove_edge (e);