* gcc.dg/uninit-H.c: Define ASM for Xtensa targets.

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

diff --git a/gcc/tree-optimize.c b/gcc/tree-optimize.c
index 971f062..87c73ad 100644 (file)
--- a/gcc/tree-optimize.c
+++ b/gcc/tree-optimize.c
@@ -118,7 +118,7 @@ execute_cleanup_cfg_post_optimizing (void)
 
 static struct tree_opt_pass pass_cleanup_cfg_post_optimizing =
 {
-  NULL,                                        /* name */
+  "final_cleanup",                     /* name */
   NULL,                                        /* gate */
   execute_cleanup_cfg_post_optimizing, /* execute */
   NULL,                                        /* sub */
@@ -129,7 +129,7 @@ static struct tree_opt_pass pass_cleanup_cfg_post_optimizing =
   0,                                   /* properties_provided */
   0,                                   /* properties_destroyed */
   0,                                   /* todo_flags_start */
-  0,                                   /* todo_flags_finish */
+  TODO_dump_func,                                      /* todo_flags_finish */
   0                                    /* letter */
 };
 
@@ -391,10 +391,12 @@ init_tree_optimization_passes (void)
   p = &pass_loop.sub;
   NEXT_PASS (pass_loop_init);
   NEXT_PASS (pass_lim);
+  NEXT_PASS (pass_unswitch);
+  NEXT_PASS (pass_record_bounds);
+  NEXT_PASS (pass_linear_transform);
   NEXT_PASS (pass_iv_canon);
   NEXT_PASS (pass_if_conversion);
   NEXT_PASS (pass_vectorize);
-  NEXT_PASS (pass_linear_transform);
   NEXT_PASS (pass_complete_unroll);
   NEXT_PASS (pass_iv_optimize);
   NEXT_PASS (pass_loop_done);
@@ -418,6 +420,14 @@ execute_todo (int properties, unsigned int flags)
       rewrite_into_ssa (false);
       bitmap_clear (vars_to_rename);
     }
+  if (flags & TODO_fix_def_def_chains)
+    {
+      rewrite_def_def_chains ();
+      bitmap_clear (vars_to_rename);
+    }
+
+  if (flags & TODO_cleanup_cfg)
+    cleanup_tree_cfg ();
 
   if ((flags & TODO_dump_func) && dump_file)
     {
@@ -500,10 +510,14 @@ execute_one_pass (struct tree_opt_pass *pass)
   if (pass->execute)
     pass->execute ();
 
+  /* Stop timevar.  */
+  if (pass->tv_id)
+    timevar_pop (pass->tv_id);
+
   if (dump_file
       && (pass->properties_provided & (PROP_cfg | PROP_rtl))
          == (PROP_cfg | PROP_rtl))
-    print_rtl_graph_with_bb (dump_file_name, get_insns ());
+    print_rtl_with_bb (dump_file, get_insns ());
 
   /* Run post-pass cleanup and verification.  */
   todo = pass->todo_flags_finish;
@@ -511,9 +525,7 @@ execute_one_pass (struct tree_opt_pass *pass)
   if (todo)
     execute_todo (pass->properties_provided, todo);
 
-  /* Close down timevar and dump file.  */
-  if (pass->tv_id)
-    timevar_pop (pass->tv_id);
+  /* Flush and close dump file.  */
   if (dump_file_name)
     {
       free ((char *) dump_file_name);
@@ -563,7 +575,7 @@ update_inlined_to_pointers (struct cgraph_node *node,
    compilation for FNDECL.  */
 
 void
-tree_rest_of_compilation (tree fndecl, bool nested_p)
+tree_rest_of_compilation (tree fndecl)
 {
   location_t saved_loc;
   struct cgraph_node *saved_node = NULL, *node;
@@ -624,17 +636,21 @@ tree_rest_of_compilation (tree fndecl, bool nested_p)
   while (node->callees)
     cgraph_remove_edge (node->callees);
 
-  if (!vars_to_rename)
-    vars_to_rename = BITMAP_XMALLOC ();
-
-  /* If this is a nested function, protect the local variables in the stack
-     above us from being collected while we're compiling this function.  */
-  if (nested_p)
-    ggc_push_context ();
 
+  /* Initialize the default bitmap obstack.  */
+  bitmap_obstack_initialize (NULL);
+  bitmap_obstack_initialize (&reg_obstack); /* FIXME, only at RTL generation*/
+  
+  vars_to_rename = BITMAP_XMALLOC ();
+  
   /* Perform all tree transforms and optimizations.  */
   execute_pass_list (all_passes);
+  
+  bitmap_obstack_release (&reg_obstack);
 
+  /* Release the default bitmap obstack.  */
+  bitmap_obstack_release (NULL);
+  
   /* Restore original body if still needed.  */
   if (cfun->saved_tree)
     {
@@ -679,15 +695,15 @@ tree_rest_of_compilation (tree fndecl, bool nested_p)
            = TREE_INT_CST_LOW (TYPE_SIZE_UNIT (ret_type));
 
          if (compare_tree_int (TYPE_SIZE_UNIT (ret_type), size_as_int) == 0)
-           warning ("%Jsize of return value of '%D' is %u bytes",
+           warning ("%Jsize of return value of %qD is %u bytes",
                      fndecl, fndecl, size_as_int);
          else
-           warning ("%Jsize of return value of '%D' is larger than %wd bytes",
+           warning ("%Jsize of return value of %qD is larger than %wd bytes",
                      fndecl, fndecl, larger_than_size);
        }
     }
 
-  if (!nested_p && !flag_inline_trees)
+  if (!flag_inline_trees)
     {
       DECL_SAVED_TREE (fndecl) = NULL;
       if (DECL_STRUCT_FUNCTION (fndecl) == 0
@@ -706,9 +722,5 @@ tree_rest_of_compilation (tree fndecl, bool nested_p)
   input_location = saved_loc;
 
   ggc_collect ();
-
-  /* Undo the GC context switch.  */
-  if (nested_p)
-    ggc_pop_context ();
   timevar_pop (TV_EXPAND);
 }