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"
35 typedef enum { flavour_Div = 1, flavour_Mod, flavour_DivMod } ia32_op_flavour_t;
36 typedef enum { pn_EAX, pn_EDX } pn_ia32_Register;
52 ia32_am_None = 0, /**<< no addrmode support */
53 ia32_am_Dest = 1, /**<< addrmode for destination only */
54 ia32_am_Source = 2, /**<< addrmode for source only */
55 ia32_am_Full = 3 /**<< full addmode support */
59 * Different Address Mode properties:
66 ia32_O = (1 << 0), /**< O - Offset is set */
67 ia32_B = (1 << 1), /**< B - Base is set */
68 ia32_I = (1 << 2), /**< I - Index is set */
69 ia32_S = (1 << 3) /**< S - Scale is set */
72 /** Possible Address mode types */
78 ia32_am_IS = ia32_I | ia32_S,
79 ia32_am_BI = ia32_B | ia32_I,
80 ia32_am_OB = ia32_O | ia32_B,
81 ia32_am_OIS = ia32_O | ia32_I | ia32_S,
82 ia32_am_OBIS = ia32_O | ia32_B | ia32_I | ia32_S
86 ia32_pn_Cmp_Unsigned = 0x100 /**< set this flag in a pnc to indicate an unsigned compare operation */
89 typedef struct ia32_attr_t ia32_attr_t;
92 unsigned tp:3; /**< ia32 node type. */
93 unsigned imm_tp:2; /**< ia32 immop type. */
94 unsigned am_support:2; /**< Indicates the address mode type supported by this node. */
95 unsigned am_flavour:4; /**< The concrete address mode characteristics. */
96 unsigned am_scale:2; /**< The address mode scale for index register. */
97 unsigned am_sc_sign:1; /**< The sign bit of the address mode symconst. */
99 unsigned use_frame:1; /**< Indicates whether the operation uses the frame pointer or not. */
100 unsigned except_label:1; /**< Set if this node needs a label because of posiible exception. */
102 ia32_op_flavour_t op_flav:2;/**< Flavour of an op (flavour_Div/Mod/DivMod). */
104 unsigned flags:4; /**< Indicating if spillable, rematerializeable, stack modifying and/or ignore. */
106 unsigned is_commutative:1; /**< Indicates whether op is commutative or not. */
108 unsigned emit_cl:1; /**< Indicates whether we must emit cl instead of ecx (needed for shifts). */
110 unsigned got_lea:1; /**< Indicates whether or not this node already consumed a LEA. */
112 unsigned need_stackent:1; /**< Set to 1 if node need space on stack. */
115 int *out_flags; /**< flags for each produced value */
117 int am_offs; /**< offsets for AddrMode */
118 ir_entity *am_sc; /**< SymConst for AddrMode */
121 tarval *tv; /**< tarval for immediate operations */
122 ir_entity *sc; /**< the symconst ident */
123 ident *asm_text; /**< used by asm node */
126 ir_mode *ls_mode; /**< Load/Store mode: This is the mode of the value
127 that is manipulated by this node. */
129 ir_entity *frame_ent; /**< the frame entity attached to this node */
131 long pn_code; /**< projnum "types" (e.g. indicate compare operators and argument numbers for switches) */
133 unsigned latency; /**< the latency of the instruction in clock cycles */
136 const char *orig_node; /**< holds the name of the original ir node for debugging purposes */
139 const be_execution_unit_t ***exec_units; /**< list of units this operation can be executed on */
141 const arch_register_req_t **in_req; /**< register requirements for arguments */
142 const arch_register_req_t **out_req; /**< register requirements for results */
144 const arch_register_t *x87[3]; /**< register slots for x87 register */
146 const arch_register_t **slots; /**< register slots for assigned registers */
149 #endif /* FIRM_BE_IA32_IA32_NODES_ATTR_H */