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/*
* This file is part of libFirm.
* Copyright (C) 2012 University of Karlsruhe.
*/
/**
* @file
* @brief Forward declarations of backend types
* @author Matthias Braun
*/
#ifndef FIRM_BE_TYPES_H
#define FIRM_BE_TYPES_H
#include <stdint.h>
#include "firm_types.h"
typedef unsigned int sched_timestep_t;
typedef struct arch_register_class_t arch_register_class_t;
typedef struct arch_register_req_t arch_register_req_t;
typedef struct arch_register_t arch_register_t;
typedef struct arch_isa_if_t arch_isa_if_t;
/**
* Some flags describing a node in more detail.
*/
typedef enum arch_irn_flags_t {
arch_irn_flags_none = 0, /**< No flags. */
arch_irn_flag_dont_spill = 1U << 0, /**< This must not be spilled. */
arch_irn_flag_rematerializable = 1U << 1, /**< This can be replicated instead of spilled/reloaded. */
arch_irn_flag_modify_flags = 1U << 2, /**< I modify flags, used by the
default check_modifies
implementation in beflags */
arch_irn_flag_simple_jump = 1U << 3, /**< a simple jump instruction */
arch_irn_flag_not_scheduled = 1U << 4, /**< node must not be scheduled*/
/** node is scheduled as soon as possible. Note that the schedule
* algorithms cannot decide the order if multiple schedule_first nodes are
* ready. */
arch_irn_flag_schedule_first = 1U << 5,
/** node writes to a spillslot, this means we can load from the spillslot
* anytime (important when deciding whether we can rematerialize) */
arch_irn_flag_spill = 1U << 6,
/** node performs a reload like operation */
arch_irn_flag_reload = 1U << 7,
arch_irn_flag_fallthrough = 1U << 8,
/** begin of custom backend flags */
arch_irn_flag_backend = 1U << 9,
} arch_irn_flags_t;
ENUM_BITSET(arch_irn_flags_t)
typedef struct be_lv_t be_lv_t;
typedef struct be_lv_info_t be_lv_info_t;
typedef struct backend_info_t backend_info_t;
typedef struct backend_params backend_params;
typedef struct sched_info_t sched_info_t;
typedef struct reg_out_info_t reg_out_info_t;
typedef struct be_ifg_t be_ifg_t;
typedef struct copy_opt_t copy_opt_t;
typedef struct be_main_env_t be_main_env_t;
typedef struct be_options_t be_options_t;
typedef struct regalloc_if_t regalloc_if_t;
typedef struct be_register_name_t be_register_name_t;
/** Additional register pressure applied to before (positive value) or after
* (negative value) a instruction. */
typedef int8_t be_add_pressure_t;
#endif
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