S/390: Add static OSC breaker if necessary.
[official-gcc.git] / gcc / resource.h
blobefbc42d290ced331b86250104384b6df8289bf93
1 /* Definitions for computing resource usage of specific insns.
2 Copyright (C) 1999-2016 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 /* Macro to clear all resources. */
24 #define CLEAR_RESOURCE(RES) \
25 do { (RES)->memory = (RES)->volatil = (RES)->cc = 0; \
26 CLEAR_HARD_REG_SET ((RES)->regs); } while (0)
28 /* The resources used by a given insn. */
29 struct resources
31 char memory; /* Insn sets or needs a memory location. */
32 char volatil; /* Insn sets or needs a volatile memory loc. */
33 char cc; /* Insn sets or needs the condition codes. */
34 HARD_REG_SET regs; /* Which registers are set or needed. */
37 /* The kinds of rtl mark_*_resources will consider */
38 enum mark_resource_type
40 MARK_SRC_DEST = 0,
41 MARK_SRC_DEST_CALL = 1
44 extern void mark_target_live_regs (rtx_insn *, rtx, struct resources *);
45 extern void mark_set_resources (rtx, struct resources *, int,
46 enum mark_resource_type);
47 extern void mark_referenced_resources (rtx, struct resources *, bool);
48 extern void clear_hashed_info_for_insn (rtx_insn *);
49 extern void incr_ticks_for_insn (rtx_insn *);
50 extern void mark_end_of_function_resources (rtx, bool);
51 extern void init_resource_info (rtx_insn *);
52 extern void free_resource_info (void);
54 #endif /* GCC_RESOURCE_H */