2 * Copyright (C) 1995-2008 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_types.h"
30 #include "../bearch_t.h"
31 #include "../bemachine.h"
35 ia32_pn_Cmp_unsigned = 0x1000,
36 ia32_pn_Cmp_float = 0x2000,
52 match_commutative = 1 << 0, /**< inputs are commutative */
53 match_am_and_immediates = 1 << 1, /**< node supports AM and immediate at
55 match_am = 1 << 2, /**< node supports (32bit) source AM */
56 match_8bit_am = 1 << 3, /**< node supports 8bit source AM */
57 match_16bit_am = 1 << 4, /**< node supports 16bit source AM */
58 match_immediate = 1 << 5, /**< node supports immediates */
59 match_mode_neutral = 1 << 6, /**< 16 and 8 bit modes can be emulated
60 by 32 bit operations */
61 match_try_am = 1 << 7, /**< only try to produce AM node, don't
62 do anything if AM isn't possible */
63 match_two_users = 1 << 8 /**< the instruction uses a load two times ... */
66 typedef struct ia32_op_attr_t ia32_op_attr_t;
67 struct ia32_op_attr_t {
74 IA32_ATTR_INVALID = 0,
75 IA32_ATTR_ia32_attr_t = 1 << 0,
76 IA32_ATTR_ia32_x87_attr_t = 1 << 1,
77 IA32_ATTR_ia32_asm_attr_t = 1 << 2,
78 IA32_ATTR_ia32_immediate_attr_t = 1 << 3,
79 IA32_ATTR_ia32_condcode_attr_t = 1 << 4,
80 IA32_ATTR_ia32_copyb_attr_t = 1 << 5,
81 IA32_ATTR_ia32_call_attr_t = 1 << 6
86 * The generic ia32 attributes. Every node has them.
88 typedef struct ia32_attr_t ia32_attr_t;
90 except_attr exc; /**< the exception attribute. MUST be the first one. */
91 struct ia32_attr_data_bitfield {
92 unsigned tp:3; /**< ia32 node type. */
93 unsigned am_arity:2; /**< Indicates the address mode type supported by this node. */
94 unsigned am_scale:2; /**< The address mode scale for index register. */
95 unsigned am_sc_sign:1; /**< The sign bit of the address mode symconst. */
97 unsigned use_frame:1; /**< Indicates whether the operation uses the frame pointer or not. */
98 unsigned has_except_label:1; /**< Set if this node needs a label because of possible exception. */
100 unsigned is_commutative:1; /**< Indicates whether op is commutative or not. */
102 unsigned need_stackent:1; /**< Set to 1 if node need space on stack. */
103 unsigned need_64bit_stackent:1; /**< needs a 64bit stack entity (see double->unsigned int conv) */
104 unsigned need_32bit_stackent:1; /**< needs a 32bit stack entity */
105 unsigned ins_permuted : 1; /**< inputs of node have been permuted
106 (for commutative nodes) */
107 unsigned cmp_unsigned : 1; /**< compare should be unsigned */
108 unsigned is_reload : 1; /**< node performs a reload */
109 unsigned is_spill : 1;
110 unsigned is_remat : 1;
113 int am_offs; /**< offsets for AddrMode */
114 ir_entity *am_sc; /**< SymConst for AddrMode */
116 ir_mode *ls_mode; /**< Load/Store mode: This is the mode of the
117 value that is manipulated by this node. */
119 ir_entity *frame_ent; /**< the frame entity attached to this node */
121 const be_execution_unit_t ***exec_units; /**< list of units this operation can be executed on */
123 const arch_register_req_t **in_req; /**< register requirements for arguments */
124 const arch_register_req_t **out_req; /**< register requirements for results */
126 ir_label_t exc_label; /**< the exception label iff this instruction can throw an exception */
129 const char *orig_node; /**< holds the name of the original ir node */
130 unsigned attr_type; /**< bitfield indicating the attribute type */
133 COMPILETIME_ASSERT(sizeof(struct ia32_attr_data_bitfield) <= 4, attr_bitfield);
136 * The attributes for a Call node.
138 typedef struct ia32_call_attr_t ia32_call_attr_t;
139 struct ia32_call_attr_t {
140 ia32_attr_t attr; /**< generic attribute */
141 unsigned pop; /**< number of bytes that get popped by the callee */
142 ir_type *call_tp; /**< The call type, copied from the original Call node. */
146 * The attributes for nodes with condition code.
148 typedef struct ia32_condcode_attr_t ia32_condcode_attr_t;
149 struct ia32_condcode_attr_t {
150 ia32_attr_t attr; /**< generic attribute */
151 long pn_code; /**< projnum "types" (e.g. indicate compare operators */
155 * The attributes for CopyB code.
157 typedef struct ia32_copyb_attr_t ia32_copyb_attr_t;
158 struct ia32_copyb_attr_t {
159 ia32_attr_t attr; /**< generic attribute */
160 unsigned size; /**< size of copied block */
164 * The attributes for immediates.
166 typedef struct ia32_immediate_attr_t ia32_immediate_attr_t;
167 struct ia32_immediate_attr_t {
168 ia32_attr_t attr; /**< generic attribute */
169 ir_entity *symconst; /**< An entity if any. */
170 long offset; /**< An offset if any. */
171 unsigned sc_sign:1; /**< The sign bit of the symconst. */
175 * The attributes for x87 nodes.
177 typedef struct ia32_x87_attr_t ia32_x87_attr_t;
178 struct ia32_x87_attr_t {
179 ia32_attr_t attr; /**< the generic attribute */
180 const arch_register_t *x87[3]; /**< register slots for x87 register */
183 typedef struct ia32_asm_reg_t ia32_asm_reg_t;
184 struct ia32_asm_reg_t {
185 unsigned use_input : 1; /* use input or output pos */
188 unsigned dummy_fill : 13;
189 unsigned inout_pos : 16; /* in/out pos where the
190 register is assigned */
195 * The attributes for ASM nodes.
197 typedef struct ia32_asm_attr_t ia32_asm_attr_t;
198 struct ia32_asm_attr_t {
199 ia32_x87_attr_t x87_attr;
201 const ia32_asm_reg_t *register_map;
204 /* the following union is necessary to indicate to the compiler that we might want to cast
205 * the structs (we use them to simulate OO-inheritance) */
206 union allow_casts_attr_t_ {
208 ia32_call_attr_t call_attr;
209 ia32_condcode_attr_t cc_attr;
210 ia32_copyb_attr_t cpy_attr;
211 ia32_x87_attr_t x87_attr;
212 ia32_asm_attr_t asm_attr;
213 ia32_immediate_attr_t immediate_attr;
217 #define CAST_IA32_ATTR(type,ptr) (assert( ((const ia32_attr_t*)(ptr))->attr_type & IA32_ATTR_ ## type ), (type*) (ptr))
218 #define CONST_CAST_IA32_ATTR(type,ptr) (assert( ((const ia32_attr_t*)(ptr))->attr_type & IA32_ATTR_ ## type ), (const type*) (ptr))
220 #define CAST_IA32_ATTR(type,ptr) ((type*) (ptr))
221 #define CONST_CAST_IA32_ATTR(type,ptr) ((const type*) (ptr))