mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-11-29 08:52:46 +00:00
53 lines
2.0 KiB
C
53 lines
2.0 KiB
C
/* Definitions for computing resource usage of specific insns.
|
|
Copyright (C) 1999 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 2, 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 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. */
|
|
};
|
|
|
|
/* The kinds of rtl mark_*_resources will consider */
|
|
enum mark_resource_type
|
|
{
|
|
MARK_SRC_DEST = 0,
|
|
MARK_SRC_DEST_CALL = 1,
|
|
MARK_DEST = 2
|
|
};
|
|
|
|
extern void mark_target_live_regs PARAMS ((rtx, rtx, struct resources *));
|
|
extern void mark_set_resources PARAMS ((rtx, struct resources *, int,
|
|
enum mark_resource_type));
|
|
extern void mark_referenced_resources PARAMS ((rtx, struct resources *, int));
|
|
extern void clear_hashed_info_for_insn PARAMS ((rtx));
|
|
extern void incr_ticks_for_insn PARAMS ((rtx));
|
|
extern void mark_end_of_function_resources PARAMS ((rtx, int));
|
|
extern void init_resource_info PARAMS ((rtx));
|
|
extern void free_resource_info PARAMS ((void));
|