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/*
* jit-reg-alloc.h - Register allocation routines for the JIT.
*
* Copyright (C) 2004 Southern Storm Software, Pty Ltd.
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _JIT_REG_ALLOC_H
#define _JIT_REG_ALLOC_H
#include "jit-rules.h"
#ifdef __cplusplus
extern "C" {
#endif
void _jit_regs_init_for_block(jit_gencode_t gen);
int _jit_regs_needs_long_pair(jit_type_t type);
int _jit_regs_get_cpu(jit_gencode_t gen, int reg, int *other_reg);
void _jit_regs_spill_all(jit_gencode_t gen);
int _jit_regs_want_reg(jit_gencode_t gen, int reg, int for_long);
void _jit_regs_free_reg(jit_gencode_t gen, int reg, int value_used);
void _jit_regs_set_value
(jit_gencode_t gen, int reg, jit_value_t value, int still_in_frame);
void _jit_regs_set_incoming(jit_gencode_t gen, int reg, jit_value_t value);
void _jit_regs_set_outgoing(jit_gencode_t gen, int reg, jit_value_t value);
int _jit_regs_is_top(jit_gencode_t gen, jit_value_t value);
int _jit_regs_is_top_two
(jit_gencode_t gen, jit_value_t value1, jit_value_t value2);
int _jit_regs_load_value
(jit_gencode_t gen, jit_value_t value, int destroy, int used_again);
int _jit_regs_dest_value(jit_gencode_t gen, jit_value_t value);
int _jit_regs_load_to_top
(jit_gencode_t gen, jit_value_t value, int used_again, int type_reg);
int _jit_regs_load_to_top_two
(jit_gencode_t gen, jit_value_t value, jit_value_t value2,
int used_again1, int used_again2, int type_reg);
void _jit_regs_load_to_top_three
(jit_gencode_t gen, jit_value_t value, jit_value_t value2,
jit_value_t value3, int used_again1, int used_again2,
int used_again3, int type_reg);
int _jit_regs_num_used(jit_gencode_t gen, int type_reg);
int _jit_regs_new_top(jit_gencode_t gen, jit_value_t value, int type_reg);
void _jit_regs_force_out(jit_gencode_t gen, jit_value_t value, int is_dest);
void _jit_regs_alloc_global(jit_gencode_t gen, jit_function_t func);
void _jit_regs_get_reg_pair(jit_gencode_t gen, int not_this1, int not_this2,
int not_this3, int *reg, int *reg2);
#ifdef __cplusplus
};
#endif
#endif /* _JIT_REG_ALLOC_H */