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;
51 ia32_am_None = 0, /**<< no addrmode support */
52 ia32_am_Dest = 1, /**<< addrmode for destination only */
53 ia32_am_Source = 2, /**<< addrmode for source only */
54 ia32_am_Full = 3 /**<< full addmode support */
77 ia32_am_IS = ia32_I | ia32_S,
78 ia32_am_BI = ia32_B | ia32_I,
79 ia32_am_OB = ia32_O | ia32_B,
80 ia32_am_OI = ia32_O | ia32_I,
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 addrmode type supported by this node */
95 unsigned am_flavour:4; /**< the concrete addrmode characteristics */
96 unsigned am_scale:2; /**< addrmode scale for index register */
98 unsigned offs_sign:1; /**< sign bit of the first offset */
99 unsigned am_sc_sign:1; /**< sign bit of the address mode symconst */
101 unsigned use_frame:1; /**< indicates whether the operation uses the frame pointer or not */
103 ia32_op_flavour_t op_flav:2;/**< flavour of an op (flavour_Div/Mod/DivMod) */
105 unsigned flags:4; /**< indicating if spillable, rematerializeable, stack modifying and/or ignore */
107 unsigned is_commutative:1; /**< indicates whether op is commutative or not */
109 unsigned emit_cl:1; /**< indicates whether we must emit cl instead of ecx (needed for shifts) */
111 unsigned got_lea:1; /**< indicates whether or not this node already consumed a LEA */
113 unsigned need_stackent:1; /**< set to 1 if node need space on stack */
115 unsigned n_res:6; /**< number of results produced by this node */
118 int *out_flags; /**< flags for each produced value */
120 int am_offs; /**< offsets for AddrMode */
121 ir_entity *am_sc; /**< SymConst for AddrMode */
124 tarval *tv; /**< tarval for immediate operations */
125 ir_entity *sc; /**< the symconst ident */
128 ir_mode *ls_mode; /**< Load/Store mode: This is the mode of the value
129 that is manipulated by this node. */
131 ir_entity *frame_ent; /**< the frame entity attached to this node */
133 long pn_code; /**< projnum "types" (e.g. indicate compare operators and argument numbers for switches) */
135 unsigned latency; /**< the latency of the instruction in clock cycles */
138 const char *orig_node; /**< holds the name of the original ir node for debugging purposes */
141 const be_execution_unit_t ***exec_units; /**< list of units this operation can be executed on */
143 const arch_register_req_t **in_req; /**< register requirements for arguments */
144 const arch_register_req_t **out_req; /**< register requirements for results */
146 const arch_register_t *x87[3]; /**< register slots for x87 register */
148 /* must be last, dynamic */
149 const arch_register_t *slots[1]; /**< register slots for assigned registers */
152 #endif /* FIRM_BE_IA32_IA32_NODES_ATTR_H */