1 /* Declarations for Target Values.
2 Copyright (C) 1995, 1996 Christian von Roques */
11 typedef struct tarval tarval;
14 #undef __need_size_t /* erroneously defined by 1.3.2's gmp.h */
15 /* #include "deftab.h" */
17 /* how to represent target types on host */
18 typedef float tarval_f;
19 typedef double tarval_d;
20 typedef long tarval_chil;
21 typedef unsigned long tarval_CHIL;
22 typedef MP_INT tarval_Z;
24 /* if ent then xname is missing or mangled from ent,
25 else if xname then xname is a linker symbol that is not mangled
27 else this is tarval_p_void.
28 if this tarval describes a symbolic address of another tarval, tv points
35 unsigned char *p; /* may contain embedded 0, not 0-terminated */
38 typedef tarval_s tarval_B;
42 tarval_f f; /* float */
43 tarval_d d; /* double */
44 tarval_chil chil; /* signed integral */
45 tarval_CHIL CHIL; /* unsigned integral */
46 tarval_Z Z; /* universal int */
47 tarval_p p; /* pointer */
49 tarval_B B; /* universal bits */
50 tarval_s s; /* string */
55 extern tarval *tarval_bad;
56 extern tarval *tarval_b_false;
57 extern tarval *tarval_b_true;
58 extern tarval *tarval_d_NaN;
59 extern tarval *tarval_d_Inf;
60 extern tarval *tarval_p_void;
61 extern tarval *tarval_mode_null[];
62 extern tarval *tarval_mode_min[];
63 extern tarval *tarval_mode_max[];
65 void tarval_init_1 (void);
66 void tarval_init_2 (void);
68 /* Hash function on tarvals */
69 unsigned tarval_hash (tarval *);
71 /************************* Constructors for tarvals *************************/
72 tarval *tarval_Z_from_str (const char *, size_t, int base);
73 tarval *tarval_B_from_str (const char *, size_t);
74 tarval *tarval_d_from_str (const char *, size_t);
75 tarval *tarval_s_from_str (const char *, size_t);
76 tarval *tarval_S_from_str (const char *, size_t);
77 tarval *tarval_from_long (ir_mode *, long);
78 tarval *tarval_p_from_str (const char *);
79 tarval *tarval_p_from_entity (entity *);
81 tarval *tarval_convert_to (tarval *, ir_mode *);
83 /* Building an irm_C, irm_s, irm_S or irm_B target value step by step. */
84 void tarval_start (void);
85 void tarval_append (const char *, size_t);
86 void tarval_append1 (char);
87 tarval *tarval_finish_as (ir_mode *);
88 tarval *tarval_cancel (void); /* returns tarval_bad */
91 /* The flags for projecting a comparison result */
93 irpn_False=0, /* false */
96 irpn_Le, /* less or equal */
97 irpn_Gt, /* greater */
98 irpn_Ge, /* greater of equal */
99 irpn_Lg, /* less or greater */
100 irpn_Leg, /* less, equal or greater = ordered */
101 irpn_Uo, /* unordered */
102 irpn_Ue, /* unordered or equal */
103 irpn_Ul, /* unordered or less */
104 irpn_Ule, /* unordered, less or equal */
105 irpn_Ug, /* unordered or greater */
106 irpn_Uge, /* unordered, greater or equal */
107 irpn_Ne, /* unordered, less or greater = not equal */
108 irpn_True, /* true */
109 irpn_notmask = irpn_Leg
112 /********************* Arithmethic operations on tarvals *********************/
113 /* Compare a with b and return an ir_pncmp describing the relation
114 between a and b. This is either Uo, Lt, Eq, Gt, or False if a or b
115 are symbolic pointers which can not be compared at all. */
116 ir_pncmp tarval_comp (tarval *a, tarval *b);
118 tarval *tarval_neg (tarval *a);
119 tarval *tarval_add (tarval *, tarval *);
120 tarval *tarval_sub (tarval *, tarval *);
121 tarval *tarval_mul (tarval *, tarval *);
122 tarval *tarval_quo (tarval *, tarval *);
123 tarval *tarval_div (tarval *, tarval *);
124 tarval *tarval_mod (tarval *, tarval *);
125 tarval *tarval_and (tarval *, tarval *);
126 tarval *tarval_or (tarval *, tarval *);
127 tarval *tarval_eor (tarval *, tarval *);
128 tarval *tarval_shl (tarval *, tarval *);
129 tarval *tarval_shr (tarval *, tarval *);
131 /* Identifying some tarvals */
132 long tarval_classify (tarval *);
133 long tarval_ord (tarval *, int *fail);
135 int tarval_print (XP_PAR1, const xprintf_info *, XP_PARN);
137 /* return a mode-specific value */
139 tarval_f tv_val_f (tarval *tv);
140 tarval_d tv_val_d (tarval *tv);
141 tarval_chil tv_val_chil (tarval *tv);
142 tarval_CHIL tv_val_CHIL (tarval *tv);
143 tarval_Z tv_val_Z (tarval *tv);
144 tarval_p tv_val_p (tarval *tv);
145 bool tv_val_b (tarval *tv);
146 tarval_B tv_val_B (tarval *tv);
147 tarval_s tv_val_s (tarval *tv);
150 #define TARVAL_VRFY(val) ((void)0)
152 #define TARVAL_VRFY(val) _tarval_vrfy ((val))
153 extern void _tarval_vrfy (const tarval *);
157 void tarval_stats (void);
159 #define tarval_stats() ((void)0)
162 ir_mode *get_tv_mode (tarval *tv);