ia32_nodes_attr.h 6.6 KB
Newer Older
Christian Würdig's avatar
Christian Würdig committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
/*
 * Copyright (C) 1995-2007 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.
 */

Christian Würdig's avatar
Christian Würdig committed
20
/**
Christian Würdig's avatar
Christian Würdig committed
21
22
23
24
 * @file
 * @brief       Type definitions for ia32 node attributes.
 * @author      Christian Wuerdig
 * @version     $Id$
Christian Würdig's avatar
Christian Würdig committed
25
 */
Christian Würdig's avatar
Christian Würdig committed
26
27
#ifndef FIRM_BE_IA32_IA32_NODES_ATTR_H
#define FIRM_BE_IA32_IA32_NODES_ATTR_H
28

Christian Würdig's avatar
Christian Würdig committed
29
30
#include "firm_config.h"

31
#include "firm_types.h"
32
#include "../bearch_t.h"
33
#include "../bemachine.h"
34
#include "irnode_t.h"
35

36
typedef enum { flavour_Div = 1, flavour_Mod, flavour_DivMod } ia32_op_flavour_t;
37
typedef enum { pn_EAX, pn_EDX } pn_ia32_Register;
38
39
40
41
42
43
44
45

typedef enum {
	ia32_Normal,
	ia32_AddrModeD,
	ia32_AddrModeS
} ia32_op_type_t;

typedef enum {
46
47
	ia32_ImmNone     = 0,
	ia32_ImmConst    = 1,
48
	ia32_ImmSymConst = 2
49
50
} ia32_immop_type_t;

51
typedef	enum {
52
53
54
	ia32_am_None   = 0,   /**<< no addrmode support */
	ia32_am_Dest   = 1,   /**<< addrmode for destination only */
	ia32_am_Source = 2,   /**<< addrmode for source only */
Matthias Braun's avatar
Matthias Braun committed
55
	ia32_am_Full   = 3,   /**<< full addmode support */
56
} ia32_am_type_t;
57

Matthias Braun's avatar
Matthias Braun committed
58
59
60
61
62
63
typedef enum {
	ia32_am_arity_none   = 0,
	ia32_am_unary  = 1,
	ia32_am_binary = 2,
} ia32_am_arity_t;

Christian Würdig's avatar
Christian Würdig committed
64
/**
Michael Beck's avatar
Michael Beck committed
65
 * Different Address Mode properties:
Christian Würdig's avatar
Christian Würdig committed
66
67
68
69
70
 * O - Offset is set
 * B - Base is set
 * I - Index is set
 * S - Scale is set
 */
71
enum {
Michael Beck's avatar
Michael Beck committed
72
73
74
75
	ia32_O = (1 << 0),  /**< O - Offset is set */
	ia32_B = (1 << 1),  /**< B - Base is set */
	ia32_I = (1 << 2),  /**< I - Index is set */
	ia32_S = (1 << 3)   /**< S - Scale is set */
76
77
};

Michael Beck's avatar
Michael Beck committed
78
/** Possible Address mode types */
Christian Würdig's avatar
Christian Würdig committed
79
typedef enum {
80
81
82
83
84
	ia32_am_N    = 0,
	ia32_am_O    = ia32_O,
	ia32_am_B    = ia32_B,
	ia32_am_I    = ia32_I,
	ia32_am_IS   = ia32_I | ia32_S,
85
	ia32_am_BI   = ia32_B | ia32_I,
86
87
88
	ia32_am_OB   = ia32_O | ia32_B,
	ia32_am_OIS  = ia32_O | ia32_I | ia32_S,
	ia32_am_OBIS = ia32_O | ia32_B | ia32_I | ia32_S
Christian Würdig's avatar
Christian Würdig committed
89
90
} ia32_am_flavour_t;

91
92
93
94
enum {
	ia32_pn_Cmp_Unsigned = 0x100 /**< set this flag in a pnc to indicate an unsigned compare operation */
};

95
96
#ifndef NDEBUG
typedef enum {
97
98
99
100
101
	IA32_ATTR_INVALID               = 0,
	IA32_ATTR_ia32_attr_t           = 1 << 0,
	IA32_ATTR_ia32_x87_attr_t       = 1 << 1,
	IA32_ATTR_ia32_asm_attr_t       = 1 << 2,
	IA32_ATTR_ia32_immediate_attr_t = 1 << 3,
102
103
104
} ia32_attr_type_t;
#endif

105
106
typedef struct ia32_attr_t ia32_attr_t;
struct ia32_attr_t {
107
	except_attr  exc;               /**< the exception attribute. MUST be the first one. */
Matthias Braun's avatar
Matthias Braun committed
108
	struct ia32_attr_data_bitfield {
109
110
111
		unsigned tp:3;              /**< ia32 node type. */
		unsigned imm_tp:2;          /**< ia32 immop type. */
		unsigned am_support:2;      /**< Indicates the address mode type supported by this node. */
Matthias Braun's avatar
Matthias Braun committed
112
		unsigned am_arity  : 2;
113
114
115
		unsigned am_flavour:4;      /**< The concrete address mode characteristics. */
		unsigned am_scale:2;        /**< The address mode scale for index register. */
		unsigned am_sc_sign:1;      /**< The sign bit of the address mode symconst. */
Christian Würdig's avatar
Christian Würdig committed
116

117
		unsigned use_frame:1;       /**< Indicates whether the operation uses the frame pointer or not. */
Matthias Braun's avatar
Matthias Braun committed
118
		unsigned except_label:1;    /**< Set if this node needs a label because of possible exception. */
Christian Würdig's avatar
Christian Würdig committed
119

120
		ia32_op_flavour_t op_flav:2;/**< Flavour of an op (flavour_Div/Mod/DivMod). */
121

122
		unsigned flags:4;           /**< Indicating if spillable, rematerializeable, stack modifying and/or ignore. */
123

124
		unsigned is_commutative:1;  /**< Indicates whether op is commutative or not. */
125

126
		unsigned emit_cl:1;         /**< Indicates whether we must emit cl instead of ecx (needed for shifts). */
127

128
		unsigned got_lea:1;         /**< Indicates whether or not this node already consumed a LEA. */
Christian Würdig's avatar
Christian Würdig committed
129

130
		unsigned need_stackent:1;   /**< Set to 1 if node need space on stack. */
131
132
	} data;

133
	int       *out_flags;     /**< flags for each produced value */
134

135
136
	int        am_offs;       /**< offsets for AddrMode */
	ir_entity *am_sc;         /**< SymConst for AddrMode */
137

138
	union {
139
140
		tarval    *tv;        /**< tarval for immediate operations */
		ir_entity *sc;        /**< the symconst ident */
141
142
	} cnst_val;

143
144
	ir_mode   *ls_mode;       /**< Load/Store mode: This is the mode of the
	                               value that is manipulated by this node. */
145

146
	ir_entity *frame_ent; /**< the frame entity attached to this node */
147

148
	long pn_code;       /**< projnum "types" (e.g. indicate compare operators and argument numbers for switches) */
Christian Würdig's avatar
Christian Würdig committed
149

Christian Würdig's avatar
Christian Würdig committed
150
151
	unsigned latency;   /**< the latency of the instruction in clock cycles */

Christian Würdig's avatar
Christian Würdig committed
152
#ifndef NDEBUG
153
154
155
	const char       *orig_node;      /**< holds the name of the original ir node */
	unsigned          attr_type;      /**< bitfield indicating the attribute type */
#endif
156

157
	const be_execution_unit_t ***exec_units; /**< list of units this operation can be executed on */
158

Matthias Braun's avatar
Matthias Braun committed
159
160
	const arch_register_req_t **in_req;  /**< register requirements for arguments */
	const arch_register_req_t **out_req; /**< register requirements for results */
161

162
	const arch_register_t **slots;     /**< register slots for assigned registers */
163
};
Matthias Braun's avatar
Matthias Braun committed
164
COMPILETIME_ASSERT(sizeof(struct ia32_attr_data_bitfield) <= 4, attr_bitfield);
165

166
167
168
169
typedef struct ia32_immediate_attr_t ia32_immediate_attr_t;
struct ia32_immediate_attr_t {
	ia32_attr_t  attr;
	ir_entity   *symconst;
170
	long         offset;
171
172
};

173
174
typedef struct ia32_x87_attr_t ia32_x87_attr_t;
struct ia32_x87_attr_t {
175
	ia32_attr_t            attr;
176
177
178
	const arch_register_t *x87[3];    /**< register slots for x87 register */
};

179
180
181
182
183
184
typedef struct ia32_asm_attr_t ia32_asm_attr_t;
struct ia32_asm_attr_t {
	ia32_x87_attr_t  x87_attr;
	ident           *asm_text;
};

185
186
187
/* the following union is necessary to indicate to the compiler that we might want to cast
 * the structs (we use them to simulate OO-inheritance) */
union allow_casts_attr_t_ {
188
189
190
191
	ia32_attr_t            attr;
	ia32_x87_attr_t        x87_attr;
	ia32_asm_attr_t        asm_attr;
	ia32_immediate_attr_t  immediate_attr;
192
193
194
195
196
197
198
199
200
201
202
};

#ifndef NDEBUG
#define CAST_IA32_ATTR(type,ptr)        (assert( ((const ia32_attr_t*)(ptr))->attr_type & IA32_ATTR_ ## type ), (type*) (ptr))
#define CONST_CAST_IA32_ATTR(type,ptr)  (assert( ((const ia32_attr_t*)(ptr))->attr_type & IA32_ATTR_ ## type ), (const type*) (ptr))
#else
#define CAST_IA32_ATTR(type,ptr)        ((type*) (ptr))
#define CONST_CAST_IA32_ATTR(type,ptr)  ((const type*) (ptr))
#endif

#endif