2 * Type definitions for ia32 node attributes.
3 * @author Christian Wuerdig
7 #ifndef _IA32_NODES_ATTR_H_
8 #define _IA32_NODES_ATTR_H_
10 #include "firm_config.h"
14 #include "firm_types.h"
15 #include "../bearch.h"
17 typedef enum { flavour_Div = 1, flavour_Mod, flavour_DivMod } ia32_op_flavour_t;
18 typedef enum { pn_EAX, pn_EDX } pn_ia32_Register;
35 ia32_am_None = 0, /**<< no addrmode support */
36 ia32_am_Dest = 1, /**<< addrmode for destination only */
37 ia32_am_Source = 2, /**<< addrmode for source only */
38 ia32_am_Full = 3 /**<< full addmode support */
61 ia32_am_IS = ia32_I | ia32_S,
62 ia32_am_BI = ia32_B | ia32_I,
63 ia32_am_OB = ia32_O | ia32_B,
64 ia32_am_OI = ia32_O | ia32_I,
65 ia32_am_OIS = ia32_O | ia32_I | ia32_S,
66 ia32_am_OBIS = ia32_O | ia32_B | ia32_I | ia32_S
69 typedef struct _ia32_register_req_t {
70 const arch_register_req_t req;
71 int same_pos; /**< in case of "should be same" we need to remember the pos to get the irn */
72 int different_pos; /**< in case of "should be different" we need to remember the pos to get the irn */
73 } ia32_register_req_t;
75 typedef struct _ia32_attr_t {
77 unsigned tp:3; /**< ia32 node type */
78 unsigned imm_tp:2; /**< ia32 immop type */
80 unsigned am_support:2; /**< indicates addrmode type supported by this node */
81 unsigned am_flavour:4; /**< the concrete addrmode characteristics */
82 unsigned am_scale:2; /**< addrmode scale for index register */
84 unsigned offs_sign:1; /**< sign bit of the first offset */
85 unsigned am_sc_sign:1; /**< sign bit of the address mode symconst */
87 unsigned use_frame:1; /**< indicates whether the operation uses the frame pointer or not */
89 unsigned op_flav:2; /**< flavour of an op (flavour_Div/Mod/DivMod) */
91 unsigned flags:4; /**< indicating if spillable and/or rematerializeable */
93 unsigned is_commutative:1; /**< indicates whether op is commutative or not */
95 unsigned emit_cl:1; /**< indicates whether we must emit cl instead of ecx (needed for shifts) */
97 unsigned got_lea:1; /**< indicates whether or not this node already consumed a LEA */
99 unsigned got_reload:1; /**< set to 1 if node cosumed a reload */
101 unsigned n_res:6; /**< number of results produced by this node */
104 struct obstack *am_offs; /**< offsets for AddrMode */
105 struct obstack *plain_offs; /**< obstack for plain am_offs */
106 ident *am_sc; /**< SymConst for AddrMode */
109 tarval *tv; /**< tarval for immediate operations */
110 ident *sc; /**< the symconst ident */
113 ident *cnst; /**< points to the string representation of the constant value (either tv or sc) */
115 ir_mode *ls_mode; /**< the mode of the stored/loaded value */
116 ir_mode *res_mode; /**< the mode of the result */
117 ir_mode *src_mode; /**< source mode for conversion */
118 ir_mode *tgt_mode; /**< target mode for conversion */
120 entity *frame_ent; /**< the frame entity attached to this node */
122 long pn_code; /**< projnum "types" (e.g. indicate compare operators and argument numbers) */
124 unsigned latency; /**< the latency of the instruction in clock cycles */
127 const char *orig_node; /**< holds the name of the original ir node for debugging purposes */
130 const ia32_register_req_t **in_req; /**< register requirements for arguments */
131 const ia32_register_req_t **out_req; /**< register requirements for results */
133 const arch_register_t *x87[3]; /**< register slots for x87 register */
135 /* must be last, dynamic */
136 const arch_register_t *slots[1]; /**< register slots for assigned registers */
139 #endif /* _IA32_NODES_ATTR_H_ */