/* Definitions for computing resource usage of specific insns. Copyright (C) 1999 Free Software Foundation, Inc. This file is part of GNU CC. GNU CC 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 2, or (at your option) any later version. GNU CC 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 GNU CC; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Macro to clear all resources. */ #define CLEAR_RESOURCE(RES) \ do { (RES)->memory = (RES)->unch_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 unch_memory; /* Insn sets of needs a "unchanging" MEM. */ 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. */ }; extern void mark_target_live_regs PROTO((rtx, rtx, struct resources *)); extern void mark_set_resources PROTO((rtx, struct resources *, int, int)); extern void mark_referenced_resources PROTO((rtx, struct resources *, int)); extern void clear_hashed_info_for_insn PROTO((rtx)); extern void incr_ticks_for_insn PROTO((rtx)); extern void mark_end_of_function_resources PROTO ((rtx, int)); extern void init_resource_info PROTO((rtx)); extern void free_resource_info PROTO((void)); extern rtx find_free_register PROTO((rtx, char *, int, HARD_REG_SET *));