1/* Definitions for computing resource usage of specific insns. 2 Copyright (C) 1999, 2003, 2004 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 2, or (at your option) any later 9version. 10 11GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12WARRANTY; without even the implied warranty of MERCHANTABILITY or 13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14for more details. 15 16You should have received a copy of the GNU General Public License 17along with GCC; see the file COPYING. If not, write to the Free 18Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 1902110-1301, USA. */ 20 21#ifndef GCC_RESOURCE_H 22#define GCC_RESOURCE_H 23 24#include "hard-reg-set.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. */ 32struct 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 */ 42enum mark_resource_type 43{ 44 MARK_SRC_DEST = 0, 45 MARK_SRC_DEST_CALL = 1 46}; 47 48extern void mark_target_live_regs (rtx, rtx, struct resources *); 49extern void mark_set_resources (rtx, struct resources *, int, 50 enum mark_resource_type); 51extern void mark_referenced_resources (rtx, struct resources *, int); 52extern void clear_hashed_info_for_insn (rtx); 53extern void incr_ticks_for_insn (rtx); 54extern void mark_end_of_function_resources (rtx, int); 55extern void init_resource_info (rtx); 56extern void free_resource_info (void); 57 58#endif /* GCC_RESOURCE_H */ 59