PR target/42321

[pf3gnuchains/gcc-fork.git] / gcc / ipa-reference.c

diff --git a/gcc/ipa-reference.c b/gcc/ipa-reference.c
index 032bef2..f00377f 100644 (file)
--- a/gcc/ipa-reference.c
+++ b/gcc/ipa-reference.c
@@ -306,7 +306,7 @@ has_proper_scope_for_analysis (tree t)
 {
   /* If the variable has the "used" attribute, treat it as if it had a
      been touched by the devil.  */
-  if (lookup_attribute ("used", DECL_ATTRIBUTES (t)))
+  if (DECL_PRESERVE_P (t))
     return false;
 
   /* Do not want to do anything with volatile except mark any
@@ -1389,22 +1389,23 @@ propagate (void)
              ipa_reference_local_vars_info_t w_l = w_ri->local;
              fprintf (dump_file, "\n  next cycle: %s/%i ",
                       cgraph_node_name (w), w->uid);
-             fprintf (dump_file, "\n    locals read: ");
-             EXECUTE_IF_SET_IN_BITMAP (w_l->statics_read,
-                                       0, index, bi)
-               {
-                 fprintf (dump_file, "%s ",
-                          get_static_name (index));
-               }
+             fprintf (dump_file, "\n    locals read: ");
+             if (w_l->statics_read)
+               EXECUTE_IF_SET_IN_BITMAP (w_l->statics_read,
+                                         0, index, bi)
+                 {
+                   fprintf (dump_file, "%s ",
+                            get_static_name (index));
+                 }
 
              fprintf (dump_file, "\n    locals written: ");
-             EXECUTE_IF_SET_IN_BITMAP (w_l->statics_written,
-                                       0, index, bi)
-               {
-                 fprintf(dump_file, "%s ",
-                         get_static_name (index));
-               }
-
+             if (w_l->statics_written)
+               EXECUTE_IF_SET_IN_BITMAP (w_l->statics_written,
+                                         0, index, bi)
+                 {
+                   fprintf (dump_file, "%s ",
+                            get_static_name (index));
+                 }
 
              w_info = (struct ipa_dfs_info *) w->aux;
              w = w_info->next_cycle;