1/* Definitions for computing resource usage of specific insns. 2 Copyright (C) 1999, 2003, 2004, 2006, 2007, 2009 3 Free Software Foundation, Inc. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify it under 8the terms of the GNU General Public License as published by the Free 9Software Foundation; either version 3, or (at your option) any later 10version. 11 12GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13WARRANTY; without even the implied warranty of MERCHANTABILITY or 14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING3. If not see 19<http://www.gnu.org/licenses/>. */ 20 21#ifndef GCC_RESOURCE_H 22#define GCC_RESOURCE_H 23 24#include "hard-reg-set.h" 25#include "df.h" 26 27/* Macro to clear all resources. */ 28#define CLEAR_RESOURCE(RES) \ 29 do { (RES)->memory = (RES)->unch_memory = (RES)->volatil = (RES)->cc = 0; \ 30 CLEAR_HARD_REG_SET ((RES)->regs); } while (0) 31 32/* The resources used by a given insn. */ 33struct resources 34{ 35 char memory; /* Insn sets or needs a memory location. */ 36 char unch_memory; /* Insn sets of needs a "unchanging" MEM. */ 37 char volatil; /* Insn sets or needs a volatile memory loc. */ 38 char cc; /* Insn sets or needs the condition codes. */ 39 HARD_REG_SET regs; /* Which registers are set or needed. */ 40}; 41 42/* The kinds of rtl mark_*_resources will consider */ 43enum mark_resource_type 44{ 45 MARK_SRC_DEST = 0, 46 MARK_SRC_DEST_CALL = 1 47}; 48 49extern void mark_target_live_regs (rtx, rtx, struct resources *); 50extern void mark_set_resources (rtx, struct resources *, int, 51 enum mark_resource_type); 52extern void mark_referenced_resources (rtx, struct resources *, bool); 53extern void clear_hashed_info_for_insn (rtx); 54extern void incr_ticks_for_insn (rtx); 55extern void mark_end_of_function_resources (rtx, bool); 56extern void init_resource_info (rtx); 57extern void free_resource_info (void); 58 59#endif /* GCC_RESOURCE_H */ 60