1/* run-rtl-passes.c - Run RTL passes directly from frontend
2 Copyright (C) 2016-2017 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING3. If not see
18<http://www.gnu.org/licenses/>. */
19
20#include "config.h"
21#include "system.h"
22#include "coretypes.h"
23#include "target.h"
24#include "rtl.h"
25#include "function.h"
26#include "basic-block.h"
27#include "tree-pass.h"
28#include "context.h"
29#include "pass_manager.h"
30#include "bitmap.h"
31#include "df.h"
32#include "regs.h"
33#include "debug.h" /* for debug_hooks. */
34#include "insn-attr-common.h" /* for INSN_SCHEDULING. */
35#include "insn-attr.h" /* for init_sched_attrs. */
36#include "run-rtl-passes.h"
37
38/* Run the backend passes, starting at the given pass.
39 Take ownership of INITIAL_PASS_NAME. */
40
41void
42run_rtl_passes (char *initial_pass_name)
43{
44 cfun->pass_startwith = initial_pass_name;
45 max_regno = max_reg_num ();
46
47 /* cgraphunit.c normally handles this. */
48 (*debug_hooks->assembly_start) ();
49
50 /* Pass "expand" normally sets this up. */
51#ifdef INSN_SCHEDULING
52 init_sched_attrs ();
53#endif
54
55 bitmap_obstack_initialize (NULL);
56 bitmap_obstack_initialize (&reg_obstack);
57
58 opt_pass *rest_of_compilation
59 = g->get_passes ()->get_rest_of_compilation ();
60 gcc_assert (rest_of_compilation);
61 execute_pass_list (cfun, rest_of_compilation);
62
63 opt_pass *clean_slate = g->get_passes ()->get_clean_slate ();
64 gcc_assert (clean_slate);
65 execute_pass_list (cfun, clean_slate);
66
67 bitmap_obstack_release (&reg_obstack);
68
69 cfun->curr_properties |= PROP_rtl;
70}
71