| /* Definitions for computing resource usage of specific insns. |
| Copyright (C) 1999-2021 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 */ |