re PR bootstrap/48804 (Bootstrap compare failure)

2011-04-28  Richard Guenther  <rguenther@suse.de>

	PR bootstrap/48804
	Revert
	2011-04-28  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-structalias.c (solve_constraints): Build succ graph
	as late as possible.

From-SVN: r173067

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e8ff75e8be189c004292ab401e50892796d56120..1a21beac63eddf38daf9ac1ce49012414792fa4d 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2011-04-28  Richard Guenther  <rguenther@suse.de>
+
+       PR bootstrap/48804
+       Revert
+       2011-04-28  Richard Guenther  <rguenther@suse.de>
+
+       * tree-ssa-structalias.c (solve_constraints): Build succ graph
+       as late as possible.
+ 
 2011-04-28  Richard Guenther  <rguenther@suse.de>
 
        * tree-ssa-structalias.c (dump_constraint): Don't end the line.

diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c
index 0d6e098028b29335c0436093f29b7891a34c1587..3aab8ee7a3d414736a49b3ea7060980e9d876dbc 100644 (file)
--- a/gcc/tree-ssa-structalias.c
+++ b/gcc/tree-ssa-structalias.c
@@ -6359,10 +6359,11 @@ solve_constraints (void)
     fprintf (dump_file, "Rewriting constraints and unifying "
             "variables\n");
   rewrite_constraints (graph, si);
-  free_var_substitution_info (si);
 
   build_succ_graph ();
 
+  free_var_substitution_info (si);
+
   /* Attach complex constraints to graph nodes.  */
   move_complex_constraints (graph);