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