Daily bump.
[official-gcc.git] / gcc / resource.h
blob26cd294946be695d6067a90108a8a87442734b29
1 /* Definitions for computing resource usage of specific insns.
2 Copyright (C) 1999, 2003, 2004, 2006, 2007 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_RESOURCE_H
21 #define GCC_RESOURCE_H
23 #include "hard-reg-set.h"
24 #include "df.h"
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)
31 /* The resources used by a given insn. */
32 struct resources
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. */
41 /* The kinds of rtl mark_*_resources will consider */
42 enum mark_resource_type
44 MARK_SRC_DEST = 0,
45 MARK_SRC_DEST_CALL = 1
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);
58 #endif /* GCC_RESOURCE_H */