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- /* Definitions for computing resource usage of specific insns.
- Copyright (C) 1999-2019 Free Software Foundation, Inc.
- This file is part of GCC.
- GCC 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 3, or (at your option) any later
- version.
- GCC 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 GCC; see the file COPYING3. If not see
- <http://www.gnu.org/licenses/>. */
- #ifndef GCC_RESOURCE_H
- #define GCC_RESOURCE_H
- /* Macro to clear all resources. */
- #define CLEAR_RESOURCE(RES) \
- do { (RES)->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 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
- };
- extern void mark_target_live_regs (rtx_insn *, rtx, struct resources *);
- extern void mark_set_resources (rtx, struct resources *, int,
- enum mark_resource_type);
- extern void mark_referenced_resources (rtx, struct resources *, bool);
- extern void clear_hashed_info_for_insn (rtx_insn *);
- extern void clear_hashed_info_until_next_barrier (rtx_insn *);
- extern void incr_ticks_for_insn (rtx_insn *);
- extern void mark_end_of_function_resources (rtx, bool);
- extern void init_resource_info (rtx_insn *);
- extern void free_resource_info (void);
- #endif /* GCC_RESOURCE_H */
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