------- Additional Comments From dnovillo at gcc dot gnu dot org 2005-06-30
21:20 -------
Testing fix. When creating new name tags, we should also consider pointers that
are not being dereferenced. They may have inherited a name tag from copy
propagation or SSA update. Will commit after testing.
Index: tree-ssa-alias.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/tree-ssa-alias.c,v
retrieving revision 2.98
diff -d -u -p -r2.98 tree-ssa-alias.c
--- tree-ssa-alias.c 25 Jun 2005 02:01:32 -0000 2.98
+++ tree-ssa-alias.c 30 Jun 2005 21:18:44 -0000
@@ -782,10 +782,15 @@ create_name_tags (struct alias_info *ai)
{
size_t i;
- for (i = 0; i < VARRAY_ACTIVE_SIZE (ai->processed_ptrs); i++)
+ for (i = 1; i < num_ssa_names; i++)
{
- tree ptr = VARRAY_TREE (ai->processed_ptrs, i);
- struct ptr_info_def *pi = SSA_NAME_PTR_INFO (ptr);
+ tree ptr = ssa_name (i);
+ struct ptr_info_def *pi;
+
+ if (ptr == NULL_TREE || !POINTER_TYPE_P (TREE_TYPE (ptr)))
+ continue;
+
+ pi = SSA_NAME_PTR_INFO (ptr);
if (pi->pt_anything || !pi->is_dereferenced)
{
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21584
