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.h"
31 #include "../bemachine.h"
35 ia32_pn_Cmp_unsigned = 0x1000,
36 ia32_pn_Cmp_float = 0x2000,
37 ia32_pn_Cmp_parity = 0x4000,
38 /* The unsigned Lt/Ge comparisons test the carry bit. */
39 ia32_pn_Cmp_carry = pn_Cmp_Lt | ia32_pn_Cmp_unsigned,
40 ia32_pn_Cmp_not_carry = pn_Cmp_Ge | ia32_pn_Cmp_unsigned
56 match_commutative = 1 << 0, /**< inputs are commutative */
57 match_am_and_immediates = 1 << 1, /**< node supports AM and immediate at
59 match_am = 1 << 2, /**< node supports (32bit) source AM */
60 match_8bit_am = 1 << 3, /**< node supports 8bit source AM */
61 match_16bit_am = 1 << 4, /**< node supports 16bit source AM */
62 match_immediate = 1 << 5, /**< node supports immediates */
63 match_mode_neutral = 1 << 6, /**< 16 and 8 bit modes can be emulated
64 by 32 bit operations */
65 match_try_am = 1 << 7, /**< only try to produce AM node, don't
66 do anything if AM isn't possible */
67 match_two_users = 1 << 8, /**< the instruction uses a load two times ... */
68 match_upconv_32 = 1 << 9 /**< 8/16 bit insn are processed by doing
72 typedef struct ia32_op_attr_t ia32_op_attr_t;
73 struct ia32_op_attr_t {
80 IA32_ATTR_INVALID = 0,
81 IA32_ATTR_ia32_attr_t = 1 << 0,
82 IA32_ATTR_ia32_x87_attr_t = 1 << 1,
83 IA32_ATTR_ia32_asm_attr_t = 1 << 2,
84 IA32_ATTR_ia32_immediate_attr_t = 1 << 3,
85 IA32_ATTR_ia32_condcode_attr_t = 1 << 4,
86 IA32_ATTR_ia32_copyb_attr_t = 1 << 5,
87 IA32_ATTR_ia32_call_attr_t = 1 << 6,
88 IA32_ATTR_ia32_climbframe_attr_t = 1 << 7,
93 * The generic ia32 attributes. Every node has them.
95 typedef struct ia32_attr_t ia32_attr_t;
97 except_attr exc; /**< the exception attribute. MUST be the first one. */
98 struct ia32_attr_data_bitfield {
99 unsigned tp:3; /**< ia32 node type. */
100 unsigned am_arity:2; /**< Indicates the address mode type supported by this node. */
101 unsigned am_scale:2; /**< The address mode scale for index register. */
102 unsigned am_sc_sign:1; /**< The sign bit of the address mode symconst. */
104 unsigned am_sc_no_pic_adjust : 1;/**< AM symconst can be relative to EIP */
105 unsigned use_frame:1; /**< Indicates whether the operation uses the frame pointer or not. */
106 unsigned has_except_label:1; /**< Set if this node needs a label because of possible exception. */
108 unsigned is_commutative:1; /**< Indicates whether op is commutative or not. */
110 unsigned need_stackent:1; /**< Set to 1 if node need space on stack. */
111 unsigned need_64bit_stackent:1; /**< needs a 64bit stack entity (see double->unsigned int conv) */
112 unsigned need_32bit_stackent:1; /**< needs a 32bit stack entity */
113 unsigned ins_permuted : 1; /**< inputs of node have been permuted
114 (for commutative nodes) */
115 unsigned cmp_unsigned : 1; /**< compare should be unsigned */
116 unsigned is_reload : 1; /**< node performs a reload */
117 unsigned is_spill : 1;
118 unsigned is_remat : 1;
121 int am_offs; /**< offsets for AddrMode */
122 ir_entity *am_sc; /**< SymConst for AddrMode */
124 ir_mode *ls_mode; /**< Load/Store mode: This is the mode of the
125 value that is manipulated by this node. */
127 ir_entity *frame_ent; /**< the frame entity attached to this node */
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 */
133 ir_label_t exc_label; /**< the exception label iff this instruction can throw an exception */
136 const char *orig_node; /**< holds the name of the original ir node */
137 unsigned attr_type; /**< bitfield indicating the attribute type */
140 COMPILETIME_ASSERT(sizeof(struct ia32_attr_data_bitfield) <= 4, attr_bitfield)
143 * The attributes for a Call node.
145 typedef struct ia32_call_attr_t ia32_call_attr_t;
146 struct ia32_call_attr_t {
147 ia32_attr_t attr; /**< generic attribute */
148 unsigned pop; /**< number of bytes that get popped by the callee */
149 ir_type *call_tp; /**< The call type, copied from the original Call node. */
153 * The attributes for nodes with condition code.
155 typedef struct ia32_condcode_attr_t ia32_condcode_attr_t;
156 struct ia32_condcode_attr_t {
157 ia32_attr_t attr; /**< generic attribute */
158 long pn_code; /**< projnum "types" (e.g. indicate compare operators */
162 * The attributes for CopyB code.
164 typedef struct ia32_copyb_attr_t ia32_copyb_attr_t;
165 struct ia32_copyb_attr_t {
166 ia32_attr_t attr; /**< generic attribute */
167 unsigned size; /**< size of copied block */
171 * The attributes for immediates.
173 typedef struct ia32_immediate_attr_t ia32_immediate_attr_t;
174 struct ia32_immediate_attr_t {
175 ia32_attr_t attr; /**< generic attribute */
176 ir_entity *symconst; /**< An entity if any. */
177 long offset; /**< An offset if any. */
178 unsigned sc_sign : 1; /**< The sign bit of the symconst. */
179 unsigned no_pic_adjust : 1; /**< constant can be relative to EIP */
183 * The attributes for x87 nodes.
185 typedef struct ia32_x87_attr_t ia32_x87_attr_t;
186 struct ia32_x87_attr_t {
187 ia32_attr_t attr; /**< the generic attribute */
188 const arch_register_t *x87[3]; /**< register slots for x87 register */
191 typedef struct ia32_asm_reg_t ia32_asm_reg_t;
192 struct ia32_asm_reg_t {
193 unsigned use_input : 1; /* use input or output pos */
196 unsigned dummy_fill : 13;
197 unsigned inout_pos : 16; /* in/out pos where the
198 register is assigned */
203 * The attributes for ASM nodes.
205 typedef struct ia32_asm_attr_t ia32_asm_attr_t;
206 struct ia32_asm_attr_t {
207 ia32_x87_attr_t x87_attr;
209 const ia32_asm_reg_t *register_map;
213 * The attributes for the ClimbFrame node.
215 typedef struct ia32_climbframe_attr_t ia32_climbframe_attr_t;
216 struct ia32_climbframe_attr_t {
217 ia32_attr_t attr; /**< generic attribute */
218 unsigned count; /**< number of frames to climb up */
221 /* the following union is necessary to indicate to the compiler that we might want to cast
222 * the structs (we use them to simulate OO-inheritance) */
223 union allow_casts_attr_t_ {
225 ia32_call_attr_t call_attr;
226 ia32_condcode_attr_t cc_attr;
227 ia32_copyb_attr_t cpy_attr;
228 ia32_x87_attr_t x87_attr;
229 ia32_asm_attr_t asm_attr;
230 ia32_immediate_attr_t immediate_attr;
231 ia32_climbframe_attr_t climbframe_attr;
235 #define CAST_IA32_ATTR(type,ptr) (assert( ((const ia32_attr_t*)(ptr))->attr_type & IA32_ATTR_ ## type ), (type*) (ptr))
236 #define CONST_CAST_IA32_ATTR(type,ptr) (assert( ((const ia32_attr_t*)(ptr))->attr_type & IA32_ATTR_ ## type ), (const type*) (ptr))
238 #define CAST_IA32_ATTR(type,ptr) ((type*) (ptr))
239 #define CONST_CAST_IA32_ATTR(type,ptr) ((const type*) (ptr))