C++ (Cpp) cgraph_set_const_flag Examples

Example #1

File: tree-profile.c Project: AsherBond/MondocosmOS-Dependencies

static unsigned int
tree_profiling (void)
{
  struct cgraph_node *node;

  /* Don't profile functions produced at destruction time, particularly
     the gcov datastructure initializer.  Don't profile if it has been
     already instrumented either (when OpenMP expansion creates
     child function from already instrumented body).  */
  if (cgraph_state == CGRAPH_STATE_FINISHED)
    return 0;

  init_node_map();

  for (node = cgraph_nodes; node; node = node->next)
    {
      if (!node->analyzed
	  || !gimple_has_body_p (node->decl))
	continue;

      /* Don't profile functions produced for builtin stuff.  */
      if (DECL_SOURCE_LOCATION (node->decl) == BUILTINS_LOCATION
	  || DECL_STRUCT_FUNCTION (node->decl)->after_tree_profile)
	continue;

      push_cfun (DECL_STRUCT_FUNCTION (node->decl));
      current_function_decl = node->decl;

      /* Re-set global shared temporary variable for edge-counters.  */
      gcov_type_tmp_var = NULL_TREE;

      /* Local pure-const may imply need to fixup the cfg.  */
      execute_fixup_cfg ();
      branch_prob ();

      if (! flag_branch_probabilities
	  && flag_profile_values)
	gimple_gen_ic_func_profiler ();

      if (flag_branch_probabilities
	  && flag_profile_values
	  && flag_value_profile_transformations)
	gimple_value_profile_transformations ();

      /* The above could hose dominator info.  Currently there is
	 none coming in, this is a safety valve.  It should be
	 easy to adjust it, if and when there is some.  */
      free_dominance_info (CDI_DOMINATORS);
      free_dominance_info (CDI_POST_DOMINATORS);

      current_function_decl = NULL;
      pop_cfun ();
    }

  /* Drop pure/const flags from instrumented functions.  */
  for (node = cgraph_nodes; node; node = node->next)
    {
      if (!node->analyzed
	  || !gimple_has_body_p (node->decl)
	  || !(!node->clone_of || node->decl != node->clone_of->decl))
	continue;

      /* Don't profile functions produced for builtin stuff.  */
      if (DECL_SOURCE_LOCATION (node->decl) == BUILTINS_LOCATION
	  || DECL_STRUCT_FUNCTION (node->decl)->after_tree_profile)
	continue;

      cgraph_set_const_flag (node, false, false);
      cgraph_set_pure_flag (node, false, false);
    }

  /* Update call statements and rebuild the cgraph.  */
  for (node = cgraph_nodes; node; node = node->next)
    {
      basic_block bb;

      if (!node->analyzed
	  || !gimple_has_body_p (node->decl)
	  || !(!node->clone_of || node->decl != node->clone_of->decl))
	continue;

      /* Don't profile functions produced for builtin stuff.  */
      if (DECL_SOURCE_LOCATION (node->decl) == BUILTINS_LOCATION
	  || DECL_STRUCT_FUNCTION (node->decl)->after_tree_profile)
	continue;

      push_cfun (DECL_STRUCT_FUNCTION (node->decl));
      current_function_decl = node->decl;

      FOR_EACH_BB (bb)
	{
	  gimple_stmt_iterator gsi;
	  for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
	    {
	      gimple stmt = gsi_stmt (gsi);
	      if (is_gimple_call (stmt))
		update_stmt (stmt);
	    }
	}

      cfun->after_tree_profile = 1;
      update_ssa (TODO_update_ssa);

      rebuild_cgraph_edges ();

      current_function_decl = NULL;
      pop_cfun ();
    }

  del_node_map();
  return 0;
}

Example #2

File: tree-profile.c Project: ArtemL/GCC

static unsigned int
tree_profiling (void)
{
  struct cgraph_node *node;

  /* This is a small-ipa pass that gets called only once, from
     cgraphunit.c:ipa_passes().  */
  gcc_assert (cgraph_state == CGRAPH_STATE_IPA_SSA);

  init_node_map (true);

  FOR_EACH_DEFINED_FUNCTION (node)
    {
      if (!gimple_has_body_p (node->decl))
	continue;

      /* Don't profile functions produced for builtin stuff.  */
      if (DECL_SOURCE_LOCATION (node->decl) == BUILTINS_LOCATION)
	continue;

      push_cfun (DECL_STRUCT_FUNCTION (node->decl));

      /* Local pure-const may imply need to fixup the cfg.  */
      if (execute_fixup_cfg () & TODO_cleanup_cfg)
	cleanup_tree_cfg ();

      branch_prob ();

      if (! flag_branch_probabilities
	  && flag_profile_values)
	gimple_gen_ic_func_profiler ();

      if (flag_branch_probabilities
	  && flag_profile_values
	  && flag_value_profile_transformations)
	gimple_value_profile_transformations ();

      /* The above could hose dominator info.  Currently there is
	 none coming in, this is a safety valve.  It should be
	 easy to adjust it, if and when there is some.  */
      free_dominance_info (CDI_DOMINATORS);
      free_dominance_info (CDI_POST_DOMINATORS);
      pop_cfun ();
    }

  /* Drop pure/const flags from instrumented functions.  */
  FOR_EACH_DEFINED_FUNCTION (node)
    {
      if (!gimple_has_body_p (node->decl)
	  || !(!node->clone_of
	  || node->decl != node->clone_of->decl))
	continue;

      /* Don't profile functions produced for builtin stuff.  */
      if (DECL_SOURCE_LOCATION (node->decl) == BUILTINS_LOCATION)
	continue;

      cgraph_set_const_flag (node, false, false);
      cgraph_set_pure_flag (node, false, false);
    }

  /* Update call statements and rebuild the cgraph.  */
  FOR_EACH_DEFINED_FUNCTION (node)
    {
      basic_block bb;

      if (!gimple_has_body_p (node->decl)
	  || !(!node->clone_of
	  || node->decl != node->clone_of->decl))
	continue;

      /* Don't profile functions produced for builtin stuff.  */
      if (DECL_SOURCE_LOCATION (node->decl) == BUILTINS_LOCATION)
	continue;

      push_cfun (DECL_STRUCT_FUNCTION (node->decl));

      FOR_EACH_BB_FN (bb, cfun)
	{
	  gimple_stmt_iterator gsi;
	  for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
	    {
	      gimple stmt = gsi_stmt (gsi);
	      if (is_gimple_call (stmt))
		update_stmt (stmt);
	    }
	}

      /* re-merge split blocks.  */
      cleanup_tree_cfg ();
      update_ssa (TODO_update_ssa);

      rebuild_cgraph_edges ();

      pop_cfun ();
    }