diff options
Diffstat (limited to 'gcc/gensupport.h')
| -rw-r--r-- | gcc/gensupport.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/gensupport.h b/gcc/gensupport.h index bac804b..8dbd0b7 100644 --- a/gcc/gensupport.h +++ b/gcc/gensupport.h @@ -18,6 +18,9 @@ along with GCC; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#ifndef GCC_GENSUPPORT_H +#define GCC_GENSUPPORT_H + struct obstack; extern struct obstack *rtl_obstack; @@ -28,6 +31,39 @@ extern rtx read_md_rtx PARAMS ((int *, int *)); extern void message_with_line PARAMS ((int, const char *, ...)) ATTRIBUTE_PRINTF_2; +/* Set this to 0 to disable automatic elision of insn patterns which + can never be used in this configuration. See genconditions.c. + Must be set before calling init_md_reader. */ +extern int insn_elision; + +/* If this is 1, the insn elision table doesn't even exist yet; + maybe_eval_c_test will always return -1. This is distinct from + insn_elision because genflags and gencodes need to see all the + patterns, but treat elided patterns differently. */ +extern const int insn_elision_unavailable; + +/* If the C test passed as the argument can be evaluated at compile + time, return its truth value; else return -1. The test must have + appeared somewhere in the machine description when genconditions + was run. */ +extern int maybe_eval_c_test PARAMS ((const char *)); + +/* This table should not be accessed directly; use maybe_eval_c_test. */ +struct c_test +{ + const char *expr; + int value; +}; + +extern const struct c_test insn_conditions[]; +extern const size_t n_insn_conditions; + +#ifdef __HASHTAB_H__ +extern hashval_t hash_c_test PARAMS ((const PTR)); +extern int cmp_c_test PARAMS ((const PTR, const PTR)); +#endif + extern int n_comma_elts PARAMS ((const char *)); extern const char *scan_comma_elt PARAMS ((const char **)); +#endif /* GCC_GENSUPPORT_H */ |