1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/* Definitions for computing resource usage of specific insns.
Copyright (C) 1999 Free Software Foundation, Inc.
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* Macro to clear all resources. */
#define CLEAR_RESOURCE(RES) \
do { (RES)->memory = (RES)->unch_memory = (RES)->volatil = (RES)->cc = 0; \
CLEAR_HARD_REG_SET ((RES)->regs); } while (0)
/* The resources used by a given insn. */
struct resources
{
char memory; /* Insn sets or needs a memory location. */
char unch_memory; /* Insn sets of needs a "unchanging" MEM. */
char volatil; /* Insn sets or needs a volatile memory loc. */
char cc; /* Insn sets or needs the condition codes. */
HARD_REG_SET regs; /* Which registers are set or needed. */
};
/* The kinds of rtl mark_*_resources will consider */
enum mark_resource_type
{
MARK_SRC_DEST = 0,
MARK_SRC_DEST_CALL = 1,
MARK_DEST = 2
};
extern void mark_target_live_regs PARAMS ((rtx, rtx, struct resources *));
extern void mark_set_resources PARAMS ((rtx, struct resources *, int,
enum mark_resource_type));
extern void mark_referenced_resources PARAMS ((rtx, struct resources *, int));
extern void clear_hashed_info_for_insn PARAMS ((rtx));
extern void incr_ticks_for_insn PARAMS ((rtx));
extern void mark_end_of_function_resources PARAMS ((rtx, int));
extern void init_resource_info PARAMS ((rtx));
extern void free_resource_info PARAMS ((void));
|
