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c88c0d42 | 1 | /* Declarations for rtx-reader support for gen* routines. |
9dcd6f09 | 2 | Copyright (C) 2000, 2002, 2003, 2004, 2007 Free Software Foundation, Inc. |
c88c0d42 | 3 | |
1322177d | 4 | This file is part of GCC. |
c88c0d42 | 5 | |
1322177d LB |
6 | GCC is free software; you can redistribute it and/or modify it under |
7 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 8 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 9 | version. |
c88c0d42 | 10 | |
1322177d LB |
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
c88c0d42 CP |
15 | |
16 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
17 | along with GCC; see the file COPYING3. If not see |
18 | <http://www.gnu.org/licenses/>. */ | |
c88c0d42 | 19 | |
2199e5fa ZW |
20 | #ifndef GCC_GENSUPPORT_H |
21 | #define GCC_GENSUPPORT_H | |
22 | ||
3916d6d8 RH |
23 | struct obstack; |
24 | extern struct obstack *rtl_obstack; | |
e543e219 | 25 | extern const char *in_fname; |
3916d6d8 | 26 | |
f9942f4e | 27 | extern int init_md_reader_args_cb (int, char **, bool (*)(const char *)); |
3d7aafde | 28 | extern int init_md_reader_args (int, char **); |
3d7aafde | 29 | extern rtx read_md_rtx (int *, int *); |
c88c0d42 | 30 | |
3d7aafde | 31 | extern void message_with_line (int, const char *, ...) |
3916d6d8 | 32 | ATTRIBUTE_PRINTF_2; |
9a5834ae | 33 | |
2199e5fa ZW |
34 | /* Set this to 0 to disable automatic elision of insn patterns which |
35 | can never be used in this configuration. See genconditions.c. | |
36 | Must be set before calling init_md_reader. */ | |
37 | extern int insn_elision; | |
38 | ||
2199e5fa ZW |
39 | /* If the C test passed as the argument can be evaluated at compile |
40 | time, return its truth value; else return -1. The test must have | |
41 | appeared somewhere in the machine description when genconditions | |
42 | was run. */ | |
3d7aafde | 43 | extern int maybe_eval_c_test (const char *); |
2199e5fa | 44 | |
1c7352cd ZW |
45 | /* Add an entry to the table of conditions. Used by genconditions and |
46 | by read-rtl.c. */ | |
47 | extern void add_c_test (const char *, int); | |
48 | ||
49 | /* This structure is used internally by gensupport.c and genconditions.c. */ | |
2199e5fa ZW |
50 | struct c_test |
51 | { | |
52 | const char *expr; | |
53 | int value; | |
54 | }; | |
55 | ||
2199e5fa | 56 | #ifdef __HASHTAB_H__ |
3d7aafde AJ |
57 | extern hashval_t hash_c_test (const void *); |
58 | extern int cmp_c_test (const void *, const void *); | |
1c7352cd | 59 | extern void traverse_c_tests (htab_trav, void *); |
2199e5fa ZW |
60 | #endif |
61 | ||
3d7aafde AJ |
62 | extern int n_comma_elts (const char *); |
63 | extern const char *scan_comma_elt (const char **); | |
9a5834ae | 64 | |
e543e219 ZW |
65 | /* Predicate handling: helper functions and data structures. */ |
66 | ||
67 | struct pred_data | |
68 | { | |
69 | struct pred_data *next; /* for iterating over the set of all preds */ | |
70 | const char *name; /* predicate name */ | |
71 | bool special; /* special handling of modes? */ | |
72 | ||
73 | /* data used primarily by genpreds.c */ | |
74 | const char *c_block; /* C test block */ | |
75 | rtx exp; /* RTL test expression */ | |
76 | ||
77 | /* data used primarily by genrecog.c */ | |
78 | enum rtx_code singleton; /* if pred takes only one code, that code */ | |
e663da80 | 79 | int num_codes; /* number of codes accepted */ |
e543e219 ZW |
80 | bool allows_non_lvalue; /* if pred allows non-lvalue expressions */ |
81 | bool allows_non_const; /* if pred allows non-const expressions */ | |
82 | bool codes[NUM_RTX_CODE]; /* set of codes accepted */ | |
83 | }; | |
84 | ||
85 | extern struct pred_data *first_predicate; | |
86 | extern struct pred_data *lookup_predicate (const char *); | |
e663da80 | 87 | extern void add_predicate_code (struct pred_data *, enum rtx_code); |
e543e219 ZW |
88 | extern void add_predicate (struct pred_data *); |
89 | ||
90 | #define FOR_ALL_PREDICATES(p) for (p = first_predicate; p; p = p->next) | |
91 | ||
26be549a RH |
92 | /* This callback will be invoked whenever an rtl include directive is |
93 | processed. To be used for creation of the dependency file. */ | |
94 | extern void (*include_callback) (const char *); | |
95 | ||
2199e5fa | 96 | #endif /* GCC_GENSUPPORT_H */ |