2 * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Type definitions for ia32 node attributes.
23 * @author Christian Wuerdig
26 #ifndef FIRM_BE_IA32_IA32_NODES_ATTR_H
27 #define FIRM_BE_IA32_IA32_NODES_ATTR_H
29 #include "firm_config.h"
31 #include "firm_types.h"
32 #include "../bearch_t.h"
33 #include "../bemachine.h"
36 typedef enum { flavour_Div = 1, flavour_Mod, flavour_DivMod } ia32_op_flavour_t;
37 typedef enum { pn_EAX, pn_EDX } pn_ia32_Register;
46 ia32_am_None = 0, /**<< no addrmode support */
48 ia32_am_Source = 2, /**<< addrmode for source only */
53 ia32_am_arity_none = 0,
60 * Different Address Mode properties:
67 ia32_O = (1 << 0), /**< O - Offset is set */
68 ia32_B = (1 << 1), /**< B - Base is set */
69 ia32_I = (1 << 2), /**< I - Index is set */
70 ia32_S = (1 << 3) /**< S - Scale is set */
75 IA32_ATTR_INVALID = 0,
76 IA32_ATTR_ia32_attr_t = 1 << 0,
77 IA32_ATTR_ia32_x87_attr_t = 1 << 1,
78 IA32_ATTR_ia32_asm_attr_t = 1 << 2,
79 IA32_ATTR_ia32_immediate_attr_t = 1 << 3,
83 typedef struct ia32_attr_t ia32_attr_t;
85 except_attr exc; /**< the exception attribute. MUST be the first one. */
86 struct ia32_attr_data_bitfield {
87 unsigned flags:5; /**< Indicating if spillable, rematerializeable, stack modifying and/or ignore. */
88 unsigned tp:3; /**< ia32 node type. */
89 unsigned am_support:2; /**< Indicates the address mode type supported by this node. */
90 unsigned am_arity : 2;
91 unsigned am_scale:2; /**< The address mode scale for index register. */
92 unsigned am_sc_sign:1; /**< The sign bit of the address mode symconst. */
94 unsigned use_frame:1; /**< Indicates whether the operation uses the frame pointer or not. */
95 unsigned except_label:1; /**< Set if this node needs a label because of possible exception. */
97 ia32_op_flavour_t op_flav:2;/**< Flavour of an op (flavour_Div/Mod/DivMod). */
99 unsigned is_commutative:1; /**< Indicates whether op is commutative or not. */
101 unsigned got_lea:1; /**< Indicates whether or not this node already consumed a LEA. */
103 unsigned need_stackent:1; /**< Set to 1 if node need space on stack. */
104 unsigned need_64bit_stackent:1; /**< needs a 64bit stack entity (see double->unsigned int conv) */
105 unsigned need_32bit_stackent:1; /**< needs a 32bit stack entity */
106 unsigned cmp_flipped : 1;
107 unsigned cmp_unsigned : 1;
110 int *out_flags; /**< flags for each produced value */
112 int am_offs; /**< offsets for AddrMode */
113 ir_entity *am_sc; /**< SymConst for AddrMode */
115 ir_mode *ls_mode; /**< Load/Store mode: This is the mode of the
116 value that is manipulated by this node. */
118 ir_entity *frame_ent; /**< the frame entity attached to this node */
120 long pn_code; /**< projnum "types" (e.g. indicate compare operators and argument numbers for switches) */
122 unsigned latency; /**< the latency of the instruction in clock cycles */
125 const char *orig_node; /**< holds the name of the original ir node */
126 unsigned attr_type; /**< bitfield indicating the attribute type */
129 const be_execution_unit_t ***exec_units; /**< list of units this operation can be executed on */
131 const arch_register_req_t **in_req; /**< register requirements for arguments */
132 const arch_register_req_t **out_req; /**< register requirements for results */
134 const arch_register_t **slots; /**< register slots for assigned registers */
136 COMPILETIME_ASSERT(sizeof(struct ia32_attr_data_bitfield) <= 4, attr_bitfield);
138 typedef struct ia32_immediate_attr_t ia32_immediate_attr_t;
139 struct ia32_immediate_attr_t {
145 typedef struct ia32_x87_attr_t ia32_x87_attr_t;
146 struct ia32_x87_attr_t {
148 const arch_register_t *x87[3]; /**< register slots for x87 register */
151 typedef struct ia32_asm_attr_t ia32_asm_attr_t;
152 struct ia32_asm_attr_t {
153 ia32_x87_attr_t x87_attr;
157 /* the following union is necessary to indicate to the compiler that we might want to cast
158 * the structs (we use them to simulate OO-inheritance) */
159 union allow_casts_attr_t_ {
161 ia32_x87_attr_t x87_attr;
162 ia32_asm_attr_t asm_attr;
163 ia32_immediate_attr_t immediate_attr;
167 #define CAST_IA32_ATTR(type,ptr) (assert( ((const ia32_attr_t*)(ptr))->attr_type & IA32_ATTR_ ## type ), (type*) (ptr))
168 #define CONST_CAST_IA32_ATTR(type,ptr) (assert( ((const ia32_attr_t*)(ptr))->attr_type & IA32_ATTR_ ## type ), (const type*) (ptr))
170 #define CAST_IA32_ATTR(type,ptr) ((type*) (ptr))
171 #define CONST_CAST_IA32_ATTR(type,ptr) ((const type*) (ptr))