#define MAX_RECOG_ALTERNATIVES 30
enum op_type {
OP_IN,
OP_OUT,
OP_INOUT
};
struct operand_alternative
{
const char *constraint;
enum reg_class class;
unsigned int reject;
int matches;
int matched;
unsigned int earlyclobber:1;
unsigned int memory_ok:1;
unsigned int offmem_ok:1;
unsigned int nonoffmem_ok:1;
unsigned int decmem_ok:1;
unsigned int incmem_ok:1;
unsigned int anything_ok:1;
};
extern void init_recog PROTO((void));
extern void init_recog_no_volatile PROTO((void));
extern int recog_memoized PROTO((rtx));
extern int check_asm_operands PROTO((rtx));
extern int asm_operand_ok PROTO((rtx, const char *));
extern int validate_change PROTO((rtx, rtx *, rtx, int));
extern int apply_change_group PROTO((void));
extern int num_validated_changes PROTO((void));
extern void cancel_changes PROTO((int));
extern int constrain_operands PROTO((int));
extern int memory_address_p PROTO((enum machine_mode, rtx));
extern int strict_memory_address_p PROTO((enum machine_mode, rtx));
extern int validate_replace_rtx PROTO((rtx, rtx, rtx));
extern void validate_replace_rtx_group PROTO((rtx, rtx, rtx));
extern int validate_replace_src PROTO((rtx, rtx, rtx));
#ifdef HAVE_cc0
extern int next_insn_tests_no_inequality PROTO ((rtx));
#endif
extern int reg_fits_class_p PROTO((rtx, enum reg_class, int,
enum machine_mode));
extern rtx *find_single_use PROTO((rtx, rtx, rtx *));
extern int general_operand PROTO((rtx, enum machine_mode));
extern int address_operand PROTO((rtx, enum machine_mode));
extern int register_operand PROTO((rtx, enum machine_mode));
extern int scratch_operand PROTO((rtx, enum machine_mode));
extern int immediate_operand PROTO((rtx, enum machine_mode));
extern int const_int_operand PROTO((rtx, enum machine_mode));
extern int const_double_operand PROTO((rtx, enum machine_mode));
extern int nonimmediate_operand PROTO((rtx, enum machine_mode));
extern int nonmemory_operand PROTO((rtx, enum machine_mode));
extern int push_operand PROTO((rtx, enum machine_mode));
extern int pop_operand PROTO((rtx, enum machine_mode));
extern int memory_operand PROTO((rtx, enum machine_mode));
extern int indirect_operand PROTO((rtx, enum machine_mode));
extern int mode_independent_operand PROTO((rtx, enum machine_mode));
extern int comparison_operator PROTO((rtx, enum machine_mode));
extern int offsettable_memref_p PROTO((rtx));
extern int offsettable_nonstrict_memref_p PROTO((rtx));
extern int offsettable_address_p PROTO((int, enum machine_mode, rtx));
extern int mode_dependent_address_p PROTO((rtx));
extern int recog PROTO((rtx, rtx, int *));
extern void add_clobbers PROTO((rtx, int));
extern void insn_extract PROTO((rtx));
extern void extract_insn PROTO((rtx));
extern void preprocess_constraints PROTO((void));
extern int volatile_ok;
extern int which_alternative;
extern rtx recog_operand[];
extern rtx *recog_operand_loc[];
extern rtx *recog_dup_loc[];
extern char recog_dup_num[];
extern int recog_n_operands;
extern int recog_n_dups;
extern int recog_n_alternatives;
extern enum machine_mode recog_operand_mode[];
extern const char *recog_constraints[];
extern enum op_type recog_op_type[];
#ifndef REGISTER_CONSTRAINTS
extern char recog_operand_address_p[];
#endif
extern struct operand_alternative recog_op_alt[MAX_RECOG_OPERANDS][MAX_RECOG_ALTERNATIVES];
#define OUT_FCN(CODE) (*insn_outfun[(int) (CODE)])
extern const char *const insn_template[];
extern const char *(*const insn_outfun[]) PROTO ((rtx *, rtx));
extern const int insn_n_operands[];
extern const int insn_n_dups[];
extern const int insn_n_alternatives[];
#ifdef REGISTER_CONSTRAINTS
extern const char *const insn_operand_constraint[][MAX_RECOG_OPERANDS];
#endif
#ifndef REGISTER_CONSTRAINTS
extern const char insn_operand_address_p[][MAX_RECOG_OPERANDS];
#endif
extern const enum machine_mode insn_operand_mode[][MAX_RECOG_OPERANDS];
extern const char insn_operand_strict_low[][MAX_RECOG_OPERANDS];
extern int (*const insn_operand_predicate[][MAX_RECOG_OPERANDS]) PROTO ((rtx, enum machine_mode));
extern const char * insn_name[];