diff options
Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/resource.h')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/resource.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/resource.h b/gcc-4.2.1-5666.3/gcc/resource.h new file mode 100644 index 000000000..589a6ebfd --- /dev/null +++ b/gcc-4.2.1-5666.3/gcc/resource.h @@ -0,0 +1,58 @@ +/* Definitions for computing resource usage of specific insns. + Copyright (C) 1999, 2003, 2004 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, 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301, USA. */ + +#ifndef GCC_RESOURCE_H +#define GCC_RESOURCE_H + +#include "hard-reg-set.h" + +/* 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 +}; + +extern void mark_target_live_regs (rtx, rtx, struct resources *); +extern void mark_set_resources (rtx, struct resources *, int, + enum mark_resource_type); +extern void mark_referenced_resources (rtx, struct resources *, int); +extern void clear_hashed_info_for_insn (rtx); +extern void incr_ticks_for_insn (rtx); +extern void mark_end_of_function_resources (rtx, int); +extern void init_resource_info (rtx); +extern void free_resource_info (void); + +#endif /* GCC_RESOURCE_H */ |