2008-03-26 Thomas Quinot <quinot@adacore.com>

[pf3gnuchains/gcc-fork.git] / gcc / tree-ssa-structalias.c

diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c
index 70a9d32..037f223 100644 (file)
--- a/gcc/tree-ssa-structalias.c
+++ b/gcc/tree-ssa-structalias.c
@@ -2630,25 +2630,6 @@ bitpos_of_field (const tree fdecl)
 }
 
 
-/* Return true if an access to [ACCESSPOS, ACCESSSIZE]
-   overlaps with a field at [FIELDPOS, FIELDSIZE] */
-
-static bool
-offset_overlaps_with_access (const unsigned HOST_WIDE_INT fieldpos,
-                            const unsigned HOST_WIDE_INT fieldsize,
-                            const unsigned HOST_WIDE_INT accesspos,
-                            const unsigned HOST_WIDE_INT accesssize)
-{
-  if (fieldpos == accesspos && fieldsize == accesssize)
-    return true;
-  if (accesspos >= fieldpos && accesspos < (fieldpos + fieldsize))
-    return true;
-  if (accesspos < fieldpos && (accesspos + accesssize > fieldpos))
-    return true;
-
-  return false;
-}
-
 /* Given a COMPONENT_REF T, return the constraint_expr for it.  */
 
 static void
@@ -2713,8 +2694,8 @@ get_constraint_for_component_ref (tree t, VEC(ce_s, heap) **results)
          varinfo_t curr;
          for (curr = get_varinfo (result->var); curr; curr = curr->next)
            {
-             if (offset_overlaps_with_access (curr->offset, curr->size,
-                                              result->offset, bitmaxsize))
+             if (ranges_overlap_p (curr->offset, curr->size,
+                                   result->offset, bitmaxsize))
                {
                  result->var = curr->id;
                  break;
@@ -5649,8 +5630,10 @@ ipa_pta_execute (void)
   return 0;
 }
 
-struct tree_opt_pass pass_ipa_pta =
+struct simple_ipa_opt_pass pass_ipa_pta =
 {
+ {
+  SIMPLE_IPA_PASS,
   "pta",                               /* name */
   gate_ipa_pta,                        /* gate */
   ipa_pta_execute,                     /* execute */
@@ -5662,8 +5645,8 @@ struct tree_opt_pass pass_ipa_pta =
   0,                                   /* properties_provided */
   0,                                   /* properties_destroyed */
   0,                                   /* todo_flags_start */
-  TODO_update_ssa,                      /* todo_flags_finish */
-  0                                    /* letter */
+  TODO_update_ssa                       /* todo_flags_finish */
+ }
 };
 
 /* Initialize the heapvar for statement mapping.  */