* pa-host.c (MAP_FAILED): Define if not defined.

[pf3gnuchains/gcc-fork.git] / gcc / tree-dfa.c

diff --git a/gcc/tree-dfa.c b/gcc/tree-dfa.c
index 6dc49a0..d7ccd69 100644 (file)
--- a/gcc/tree-dfa.c
+++ b/gcc/tree-dfa.c
@@ -1004,7 +1004,7 @@ mark_new_vars_to_rename (tree stmt, bitmap vars_to_rename)
   if (found_exposed_symbol
       || v_may_defs_before > v_may_defs_after
       || v_must_defs_before > v_must_defs_after)
-    bitmap_a_or_b (vars_to_rename, vars_to_rename, vars_in_vops_to_rename);
+    bitmap_ior_into (vars_to_rename, vars_in_vops_to_rename);
 
   BITMAP_XFREE (vars_in_vops_to_rename);
 }
@@ -1032,3 +1032,18 @@ find_new_referenced_vars (tree *stmt_p)
 {
   walk_tree (stmt_p, find_new_referenced_vars_1, NULL, NULL);
 }
+
+
+/* Mark all call-clobbered variables for renaming.  */
+
+void
+mark_call_clobbered_vars_to_rename (void)
+{
+  unsigned i;
+  bitmap_iterator bi;
+  EXECUTE_IF_SET_IN_BITMAP (call_clobbered_vars, 0, i, bi)
+    {
+      tree var = referenced_var (i);
+      bitmap_set_bit (vars_to_rename, var_ann (var)->uid);
+    }
+}