[libfirm] / ir / be / amd64 / amd64_new_nodes.c

/*
 * Copyright (C) 1995-2011 University of Karlsruhe.  All right reserved.
 *
 * This file is part of libFirm.
 *
 * This file may be distributed and/or modified under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation and appearing in the file LICENSE.GPL included in the
 * packaging of this file.
 *
 * Licensees holding valid libFirm Professional Edition licenses may use
 * this file in accordance with the libFirm Commercial License.
 * Agreement provided with the Software.
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE.
 */

/**
 * @file
 * @brief   This file implements the creation of the achitecture specific firm
 *          opcodes and the coresponding node constructors for the amd64
 *          assembler irg.
 */
#include "config.h"

#include <stdlib.h>

#include "irprog_t.h"
#include "irgraph_t.h"
#include "irnode_t.h"
#include "irmode_t.h"
#include "ircons_t.h"
#include "iropt_t.h"
#include "irop.h"
#include "irprintf.h"
#include "xmalloc.h"

#include "bearch.h"

#include "amd64_nodes_attr.h"
#include "amd64_new_nodes.h"
#include "gen_amd64_regalloc_if.h"

void set_amd64_ls_mode(ir_node *node, ir_mode *mode)
{
  amd64_attr_t *attr = get_amd64_attr(node);
  attr->ls_mode = mode;
}

/**
 * Dumper interface for dumping amd64 nodes in vcg.
 * @param F        the output file
 * @param n        the node to dump
 * @param reason   indicates which kind of information should be dumped
 */
static void amd64_dump_node(FILE *F, ir_node *n, dump_reason_t reason)
{
        ir_mode *mode = NULL;

        switch (reason) {
        case dump_node_opcode_txt:
                fprintf(F, "%s", get_irn_opname(n));
                break;

        case dump_node_mode_txt:
                mode = get_irn_mode(n);

                if (mode) {
                        fprintf(F, "[%s]", get_mode_name(mode));
                } else {
                        fprintf(F, "[?NOMODE?]");
                }
                break;

        case dump_node_nodeattr_txt:

                /* TODO: dump some attributes which should show up */
                /* in node name in dump (e.g. consts or the like)  */

                break;

        case dump_node_info_txt:
                arch_dump_reqs_and_registers(F, n);
                break;
        }
}

const amd64_attr_t *get_amd64_attr_const(const ir_node *node)
{
        assert(is_amd64_irn(node) && "need amd64 node to get attributes");
        return (const amd64_attr_t *)get_irn_generic_attr_const(node);
}

amd64_attr_t *get_amd64_attr(ir_node *node)
{
        assert(is_amd64_irn(node) && "need amd64 node to get attributes");
        return (amd64_attr_t *)get_irn_generic_attr(node);
}

const amd64_SymConst_attr_t *get_amd64_SymConst_attr_const(const ir_node *node)
{
        const amd64_SymConst_attr_t *attr
                = (const amd64_SymConst_attr_t*)get_irn_generic_attr_const(node);
        return attr;
}

amd64_SymConst_attr_t *get_amd64_SymConst_attr(ir_node *node)
{
        amd64_SymConst_attr_t *attr
                = (amd64_SymConst_attr_t*)get_irn_generic_attr(node);
        return attr;
}

/**
 * Initializes the nodes attributes.
 */
static void init_amd64_attributes(ir_node *node, arch_irn_flags_t flags,
                              const arch_register_req_t **in_reqs,
                              const be_execution_unit_t ***execution_units,
                              int n_res)
{
        ir_graph        *irg  = get_irn_irg(node);
        struct obstack  *obst = get_irg_obstack(irg);
        amd64_attr_t *attr    = get_amd64_attr(node);

        backend_info_t  *info;
        (void) execution_units;

        arch_set_irn_flags(node, flags);
        arch_set_irn_register_reqs_in(node, in_reqs);

        info            = be_get_info(node);
        info->out_infos = NEW_ARR_D(reg_out_info_t, obst, n_res);
        memset(info->out_infos, 0, n_res * sizeof(info->out_infos[0]));

        attr->data.ins_permuted = 0;
        attr->data.cmp_unsigned = 0;
        attr->ext.relation      = ir_relation_false;
        attr->ext.imm_value     = 0;
}

/**
 * Initialize SymConst attributes.
 */
static void init_amd64_SymConst_attributes(ir_node *node, ir_entity *entity)
{
        amd64_SymConst_attr_t *attr = get_amd64_SymConst_attr(node);
        attr->entity    = entity;
        attr->fp_offset = 0;
}

/** Compare node attributes for SymConst. */
static int cmp_amd64_attr_SymConst(const ir_node *a, const ir_node *b)
{
        const amd64_SymConst_attr_t *attr_a = get_amd64_SymConst_attr_const(a);
        const amd64_SymConst_attr_t *attr_b = get_amd64_SymConst_attr_const(b);

        if (attr_a->entity != attr_b->entity
            || attr_a->fp_offset != attr_b->fp_offset)
                return 1;

        return 0;
}

/** Compare common amd64 node attributes. */
static int cmp_amd64_attr(const ir_node *a, const ir_node *b)
{
        const amd64_attr_t *attr_a = get_amd64_attr_const(a);
        const amd64_attr_t *attr_b = get_amd64_attr_const(b);

        return attr_a->ext.imm_value != attr_b->ext.imm_value;
}

/** copies the AMD64 attributes of a node. */
static void amd64_copy_attr(ir_graph *irg, const ir_node *old_node,
                          ir_node *new_node)
{
        struct obstack   *obst       = get_irg_obstack(irg);
        const amd64_attr_t *attr_old = get_amd64_attr_const(old_node);
        amd64_attr_t     *attr_new   = get_amd64_attr(new_node);
        backend_info_t   *old_info   = be_get_info(old_node);
        backend_info_t   *new_info   = be_get_info(new_node);

        /* copy the attributes */
        memcpy(attr_new, attr_old, get_op_attr_size(get_irn_op(old_node)));

        /* copy out flags */
        new_info->flags = old_info->flags;
        new_info->out_infos =
                DUP_ARR_D(reg_out_info_t, obst, old_info->out_infos);
        new_info->in_reqs = old_info->in_reqs;
}

/* Include the generated constructor functions */
#include "gen_amd64_new_nodes.c.inl"