PR rtl-optimization/28940

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

diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c
index a99839c..0212499 100644 (file)
--- a/gcc/tree-ssa-structalias.c
+++ b/gcc/tree-ssa-structalias.c
@@ -4702,7 +4702,6 @@ set_uids_in_ptset (tree ptr, bitmap into, bitmap from, bool is_derefed,
 {
   unsigned int i;
   bitmap_iterator bi;
-  subvar_t sv;
   alias_set_type ptr_alias_set = get_alias_set (TREE_TYPE (ptr));
 
   EXECUTE_IF_SET_IN_BITMAP (from, 0, i, bi)
@@ -4717,10 +4716,14 @@ set_uids_in_ptset (tree ptr, bitmap into, bitmap from, bool is_derefed,
 
       if (vi->has_union && get_subvars_for_var (vi->decl) != NULL)
        {
+         unsigned int i;
+         tree subvar;
+         subvar_t sv = get_subvars_for_var (vi->decl);
+
          /* Variables containing unions may need to be converted to
             their SFT's, because SFT's can have unions and we cannot.  */
-         for (sv = get_subvars_for_var (vi->decl); sv; sv = sv->next)
-           bitmap_set_bit (into, DECL_UID (sv->var));
+         for (i = 0; VEC_iterate (tree, sv, i, subvar); ++i)
+           bitmap_set_bit (into, DECL_UID (subvar));
        }
       else if (TREE_CODE (vi->decl) == VAR_DECL
               || TREE_CODE (vi->decl) == PARM_DECL