gcc/
[official-gcc.git] / gcc / shrink-wrap.h
blobdda9b926f5ce9e08a3e04dfb4e5fc7fb4a4d2350
1 /* Shrink-wrapping related functions.
2 Copyright (C) 1989-2015 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
9 version.
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 for more details.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 #ifndef GCC_SHRINK_WRAP_H
21 #define GCC_SHRINK_WRAP_H
23 #include "function.h"
25 /* In shrink-wrap.c. */
26 extern bool requires_stack_frame_p (rtx_insn *, HARD_REG_SET, HARD_REG_SET);
27 extern void prepare_shrink_wrap (basic_block entry_block);
28 extern void dup_block_and_redirect (basic_block bb, basic_block copy_bb,
29 rtx_insn *before,
30 bitmap_head *need_prologue);
31 extern void try_shrink_wrapping (edge *entry_edge, edge orig_entry_edge,
32 bitmap_head *bb_flags, rtx_insn *prologue_seq);
33 extern edge get_unconverted_simple_return (edge, bitmap_head,
34 vec<edge> *, rtx_insn **);
35 extern void convert_to_simple_return (edge entry_edge, edge orig_entry_edge,
36 bitmap_head bb_flags,
37 rtx_insn *returnjump,
38 vec<edge> unconverted_simple_returns);
39 #define SHRINK_WRAPPING_ENABLED \
40 (flag_shrink_wrap && targetm.have_simple_return ())
42 #endif /* GCC_SHRINK_WRAP_H */