1/* Shrink-wrapping related functions.
2 Copyright (C) 1989-2017 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#ifndef GCC_SHRINK_WRAP_H
21#define GCC_SHRINK_WRAP_H
22
23#include "function.h"
24
25/* In shrink-wrap.c. */
26extern bool requires_stack_frame_p (rtx_insn *, HARD_REG_SET, HARD_REG_SET);
27extern void try_shrink_wrapping (edge *entry_edge, rtx_insn *prologue_seq);
28extern void try_shrink_wrapping_separate (basic_block first_bb);
29#define SHRINK_WRAPPING_ENABLED \
30 (flag_shrink_wrap && targetm.have_simple_return ())
31
32#endif /* GCC_SHRINK_WRAP_H */
33
34
35