re PR tree-optimization/25315 (testsuite…

re PR tree-optimization/25315 (testsuite failure:27_io/basic_ostream/inserters_character/char/9555-oc.cc wchar_t/9555-oc.cc exec)

2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
            Daniel Berlin  <dberlin@dberlin.org>

        PR tree-opt/25315
        PR tree-opt/25857
        * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
        return from the function.

2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>

        PR tree-opt/25857
        * g++.dg/opt/pr25857.C: New test.


Co-Authored-By: Daniel Berlin <dberlin@dberlin.org>

From-SVN: r110127

gcc/ChangeLog

+2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
+            Daniel Berlin  <dberlin@dberlin.org>
+
+	PR tree-opt/25315
+	PR tree-opt/25857
+	* tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal 
+	return from the function.
+
 2006-01-22  Zack Weinberg  <zackw@panix.com>
 
 	* rtl.def (match_code): Add second argument.

gcc/testsuite/ChangeLog

+2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
+
+	PR tree-opt/25857
+	* g++.dg/opt/pr25857.C: New test.
+
 2006-01-23  Steven Bosscher  <stevenb.gcc@gmail.com>
 	Jan Hubicka  <jh@suse.cz>
 	Richard Guenther  <rguenther@suse.de>

gcc/testsuite/g++.dg/opt/pr25857.C

+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+int foo();
+int i;
+
+struct A
+{
+  ~A() { if (this != (A*)(&i)) foo(); }
+};
+
+struct B
+{
+  A a1, a2, a3, a4;
+  ~B() { foo(); }
+};
+
+B b;

gcc/tree-ssa-pre.c

@@ -2745,6 +2745,10 @@ insert_extra_phis (basic_block block, basic_block dom)
 
       FOR_EACH_EDGE (e, ei, block->preds)
 	{
+	  /* We cannot handle abnormal incomming edges correctly.  */
+	  if (e->flags & EDGE_ABNORMAL)
+	    return;
+
 	  if (first)
 	    {
 	      bitmap_set_copy (tempset, AVAIL_OUT (e->src));