ia32_nodes_attr.h 4.27 KB
Newer Older
Christian Würdig's avatar
Christian Würdig committed
1
2
3
4
5
6
/**
 * Type definitions for ia32 node attributes.
 * @author Christian Wuerdig
 * $Id$
 */

7
8
9
#ifndef _IA32_NODES_ATTR_H_
#define _IA32_NODES_ATTR_H_

Christian Würdig's avatar
Christian Würdig committed
10
11
#include "firm_config.h"

12
13
#include <obstack.h>

14
15
#include "firm_types.h"
#include "../bearch.h"
16
#include "../bemachine.h"
17

18
typedef enum { flavour_Div = 1, flavour_Mod, flavour_DivMod } ia32_op_flavour_t;
19
typedef enum { pn_EAX, pn_EDX } pn_ia32_Register;
20
21
22
23
24
25
26
27

typedef enum {
	ia32_Normal,
	ia32_AddrModeD,
	ia32_AddrModeS
} ia32_op_type_t;

typedef enum {
28
29
30
	ia32_ImmNone     = 0,
	ia32_ImmConst    = 1,
	ia32_ImmSymConst = 2
31
32
} ia32_immop_type_t;

33
typedef	enum {
34
35
36
37
38
	ia32_am_None   = 0,   /**<< no addrmode support */
	ia32_am_Dest   = 1,   /**<< addrmode for destination only */
	ia32_am_Source = 2,   /**<< addrmode for source only */
	ia32_am_Full   = 3    /**<< full addmode support */
} ia32_am_type_t;
39

Christian Würdig's avatar
Christian Würdig committed
40
41
42
43
44
45
46
/**
 * Different AM types:
 * O - Offset is set
 * B - Base is set
 * I - Index is set
 * S - Scale is set
 */
47
48

enum {
49
50
51
52
	ia32_O = (1 << 0),
	ia32_B = (1 << 1),
	ia32_I = (1 << 2),
	ia32_S = (1 << 3)
53
54
};

Christian Würdig's avatar
Christian Würdig committed
55
typedef enum {
56
57
58
59
60
	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,
61
	ia32_am_BI   = ia32_B | ia32_I,
62
63
64
65
	ia32_am_OB   = ia32_O | ia32_B,
	ia32_am_OI   = ia32_O | ia32_I,
	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
66
67
} ia32_am_flavour_t;

Christian Würdig's avatar
Christian Würdig committed
68
69
typedef struct _ia32_register_req_t {
	const arch_register_req_t req;
70
71
	int same_pos;        /**< in case of "should be same" we need to remember the pos to get the irn */
	int different_pos;   /**< in case of "should be different" we need to remember the pos to get the irn */
Christian Würdig's avatar
Christian Würdig committed
72
} ia32_register_req_t;
73

74
75
76
77
enum {
	ia32_pn_Cmp_Unsigned = 0x100 /**< set this flag in a pnc to indicate an unsigned compare operation */
};

78
typedef struct _ia32_attr_t {
79
	struct {
80
81
82
83
		unsigned tp:3;              /**< ia32 node type */
		unsigned imm_tp:2;          /**< ia32 immop type */
		unsigned am_support:2;      /**< indicates addrmode type supported by this node */
		unsigned am_flavour:4;      /**< the concrete addrmode characteristics */
84
		unsigned am_scale:2;        /**< addrmode scale for index register */
Christian Würdig's avatar
Christian Würdig committed
85

86
		unsigned offs_sign:1;       /**< sign bit of the first offset */
87
		unsigned am_sc_sign:1;      /**< sign bit of the address mode symconst */
Christian Würdig's avatar
Christian Würdig committed
88

89
		unsigned use_frame:1;       /**< indicates whether the operation uses the frame pointer or not */
90

91
		ia32_op_flavour_t op_flav:2;/**< flavour of an op (flavour_Div/Mod/DivMod) */
92

93
		unsigned flags:4;           /**< indicating if spillable, rematerializeable, stack modifying and/or ignore */
94

95
		unsigned is_commutative:1;  /**< indicates whether op is commutative or not */
96

Christian Würdig's avatar
Christian Würdig committed
97
98
		unsigned emit_cl:1;         /**< indicates whether we must emit cl instead of ecx (needed for shifts) */

99
100
		unsigned got_lea:1;         /**< indicates whether or not this node already consumed a LEA */

101
		unsigned need_stackent:1;   /**< set to 1 if node need space on stack */
Christian Würdig's avatar
Christian Würdig committed
102
103

		unsigned n_res:6;           /**< number of results produced by this node */
104
105
	} data;

106
107
	int *out_flags;     /**< flags for each produced value */

108
	int   am_offs;      /**< offsets for AddrMode */
Christian Würdig's avatar
Christian Würdig committed
109
	ident *am_sc;       /**< SymConst for AddrMode */
110

111
112
113
114
115
	union {
		tarval *tv;     /**< tarval for immediate operations */
		ident  *sc;     /**< the symconst ident */
	} cnst_val;

116
	ir_mode *ls_mode;   /**< the mode of the stored/loaded value, or the mode to convert to */
117

118
	ir_entity *frame_ent; /**< the frame entity attached to this node */
119

120
	long pn_code;       /**< projnum "types" (e.g. indicate compare operators and argument numbers for switches) */
Christian Würdig's avatar
Christian Würdig committed
121

Christian Würdig's avatar
Christian Würdig committed
122
123
	unsigned latency;   /**< the latency of the instruction in clock cycles */

Christian Würdig's avatar
Christian Würdig committed
124
125
126
#ifndef NDEBUG
	const char *orig_node;      /**< holds the name of the original ir node for debugging purposes */
#endif /* NDEBUG */
127

128
	const be_execution_unit_t ***exec_units; /**< list of units this operation can be executed on */
129

130
131
132
	const ia32_register_req_t **in_req;  /**< register requirements for arguments */
	const ia32_register_req_t **out_req; /**< register requirements for results */

Michael Beck's avatar
Michael Beck committed
133
	const arch_register_t *x87[3];       /**< register slots for x87 register */
134
135
136

	/* must be last, dynamic */
	const arch_register_t *slots[1];     /**< register slots for assigned registers */
137
} ia32_attr_t;
138
139

#endif /* _IA32_NODES_ATTR_H_ */