1/* Export function prototypes from dojump.c.
2   Copyright (C) 2015-2016 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_DOJUMP_H
21#define GCC_DOJUMP_H
22
23/* At the start of a function, record that we have no previously-pushed
24   arguments waiting to be popped.  */
25extern void init_pending_stack_adjust (void);
26
27/* Discard any pending stack adjustment.  */
28extern void discard_pending_stack_adjust (void);
29
30/* When exiting from function, if safe, clear out any pending stack adjust
31   so the adjustment won't get done.  */
32extern void clear_pending_stack_adjust (void);
33
34/* Pop any previously-pushed arguments that have not been popped yet.  */
35extern void do_pending_stack_adjust (void);
36
37/* Struct for saving/restoring of pending_stack_adjust/stack_pointer_delta
38   values.  */
39
40struct saved_pending_stack_adjust
41{
42  /* Saved value of pending_stack_adjust.  */
43  int x_pending_stack_adjust;
44
45  /* Saved value of stack_pointer_delta.  */
46  int x_stack_pointer_delta;
47};
48
49/* Remember pending_stack_adjust/stack_pointer_delta.
50   To be used around code that may call do_pending_stack_adjust (),
51   but the generated code could be discarded e.g. using delete_insns_since.  */
52
53extern void save_pending_stack_adjust (saved_pending_stack_adjust *);
54
55/* Restore the saved pending_stack_adjust/stack_pointer_delta.  */
56
57extern void restore_pending_stack_adjust (saved_pending_stack_adjust *);
58
59/* Generate code to evaluate EXP and jump to LABEL if the value is zero.  */
60extern void jumpifnot (tree, rtx, int);
61extern void jumpifnot_1 (enum tree_code, tree, tree, rtx, int);
62
63/* Generate code to evaluate EXP and jump to LABEL if the value is nonzero.  */
64extern void jumpif (tree, rtx, int);
65extern void jumpif_1 (enum tree_code, tree, tree, rtx, int);
66
67/* Generate code to evaluate EXP and jump to IF_FALSE_LABEL if
68   the result is zero, or IF_TRUE_LABEL if the result is one.  */
69extern void do_jump (tree, rtx, rtx, int);
70extern void do_jump_1 (enum tree_code, tree, tree, rtx, rtx, int);
71
72extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int,
73				     machine_mode, rtx, rtx, rtx, int);
74
75extern bool split_comparison (enum rtx_code, machine_mode,
76			      enum rtx_code *, enum rtx_code *);
77
78#endif /* GCC_DOJUMP_H */
79