Mercurial > hg > CbC > CbC_gcc
comparison gcc/resource.h @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
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children | 77e2b8dfacca |
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1 /* Definitions for computing resource usage of specific insns. | |
2 Copyright (C) 1999, 2003, 2004, 2006, 2007 Free Software Foundation, Inc. | |
3 | |
4 This file is part of GCC. | |
5 | |
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. | |
10 | |
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. | |
15 | |
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/>. */ | |
19 | |
20 #ifndef GCC_RESOURCE_H | |
21 #define GCC_RESOURCE_H | |
22 | |
23 #include "hard-reg-set.h" | |
24 #include "df.h" | |
25 | |
26 /* Macro to clear all resources. */ | |
27 #define CLEAR_RESOURCE(RES) \ | |
28 do { (RES)->memory = (RES)->unch_memory = (RES)->volatil = (RES)->cc = 0; \ | |
29 CLEAR_HARD_REG_SET ((RES)->regs); } while (0) | |
30 | |
31 /* The resources used by a given insn. */ | |
32 struct resources | |
33 { | |
34 char memory; /* Insn sets or needs a memory location. */ | |
35 char unch_memory; /* Insn sets of needs a "unchanging" MEM. */ | |
36 char volatil; /* Insn sets or needs a volatile memory loc. */ | |
37 char cc; /* Insn sets or needs the condition codes. */ | |
38 HARD_REG_SET regs; /* Which registers are set or needed. */ | |
39 }; | |
40 | |
41 /* The kinds of rtl mark_*_resources will consider */ | |
42 enum mark_resource_type | |
43 { | |
44 MARK_SRC_DEST = 0, | |
45 MARK_SRC_DEST_CALL = 1 | |
46 }; | |
47 | |
48 extern void mark_target_live_regs (rtx, rtx, struct resources *); | |
49 extern void mark_set_resources (rtx, struct resources *, int, | |
50 enum mark_resource_type); | |
51 extern void mark_referenced_resources (rtx, struct resources *, int); | |
52 extern void clear_hashed_info_for_insn (rtx); | |
53 extern void incr_ticks_for_insn (rtx); | |
54 extern void mark_end_of_function_resources (rtx, int); | |
55 extern void init_resource_info (rtx); | |
56 extern void free_resource_info (void); | |
57 | |
58 #endif /* GCC_RESOURCE_H */ |