From: Daniel Berlin <dberlin@dberlin.org>
Date: Wed, 18 May 2005 13:29:38 +0000 (+0000)
Subject: cfgrtl.c (purge_dead_edges): Don't remove fake edges.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2afa8dcedaa0b3db5444fe6086e991ac77bdd730;p=gcc.git

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

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

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

From-SVN: r99897
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 11b9bc3ec4b..26c1162dc70 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+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 3ceca75f7e3..42761cad745 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);