#define MAX_RECOG_ALTERNATIVES 30
#define recog_memoized(I) (INSN_CODE (I) >= 0 \
? INSN_CODE (I) : recog_memoized_1 (I))
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 is_address:1;
unsigned int anything_ok:1;
};
extern void init_recog PARAMS ((void));
extern void init_recog_no_volatile PARAMS ((void));
extern int recog_memoized_1 PARAMS ((rtx));
extern int check_asm_operands PARAMS ((rtx));
extern int asm_operand_ok PARAMS ((rtx, const char *));
extern int validate_change PARAMS ((rtx, rtx *, rtx, int));
extern int insn_invalid_p PARAMS ((rtx));
extern int apply_change_group PARAMS ((void));
extern int num_validated_changes PARAMS ((void));
extern void cancel_changes PARAMS ((int));
extern int constrain_operands PARAMS ((int));
extern int constrain_operands_cached PARAMS ((int));
extern int memory_address_p PARAMS ((enum machine_mode, rtx));
extern int strict_memory_address_p PARAMS ((enum machine_mode, rtx));
extern int validate_replace_rtx_subexp PARAMS ((rtx, rtx, rtx, rtx *));
extern int validate_replace_rtx PARAMS ((rtx, rtx, rtx));
extern void validate_replace_rtx_group PARAMS ((rtx, rtx, rtx));
extern int validate_replace_src PARAMS ((rtx, rtx, rtx));
extern void validate_replace_src_group PARAMS ((rtx, rtx, rtx));
extern int num_changes_pending PARAMS ((void));
#ifdef HAVE_cc0
extern int next_insn_tests_no_inequality PARAMS ((rtx));
#endif
extern int reg_fits_class_p PARAMS ((rtx, enum reg_class, int,
enum machine_mode));
extern rtx *find_single_use PARAMS ((rtx, rtx, rtx *));
extern int general_operand PARAMS ((rtx, enum machine_mode));
extern int address_operand PARAMS ((rtx, enum machine_mode));
extern int register_operand PARAMS ((rtx, enum machine_mode));
extern int pmode_register_operand PARAMS ((rtx, enum machine_mode));
extern int scratch_operand PARAMS ((rtx, enum machine_mode));
extern int immediate_operand PARAMS ((rtx, enum machine_mode));
extern int const_int_operand PARAMS ((rtx, enum machine_mode));
extern int const_double_operand PARAMS ((rtx, enum machine_mode));
extern int nonimmediate_operand PARAMS ((rtx, enum machine_mode));
extern int nonmemory_operand PARAMS ((rtx, enum machine_mode));
extern int push_operand PARAMS ((rtx, enum machine_mode));
extern int pop_operand PARAMS ((rtx, enum machine_mode));
extern int memory_operand PARAMS ((rtx, enum machine_mode));
extern int indirect_operand PARAMS ((rtx, enum machine_mode));
extern int mode_independent_operand PARAMS ((rtx, enum machine_mode));
extern int comparison_operator PARAMS ((rtx, enum machine_mode));
extern int offsettable_memref_p PARAMS ((rtx));
extern int offsettable_nonstrict_memref_p PARAMS ((rtx));
extern int offsettable_address_p PARAMS ((int, enum machine_mode, rtx));
extern int mode_dependent_address_p PARAMS ((rtx));
extern int recog PARAMS ((rtx, rtx, int *));
extern void add_clobbers PARAMS ((rtx, int));
extern int added_clobbers_hard_reg_p PARAMS ((int));
extern void insn_extract PARAMS ((rtx));
extern void extract_insn PARAMS ((rtx));
extern void extract_constrain_insn_cached PARAMS ((rtx));
extern void extract_insn_cached PARAMS ((rtx));
extern void preprocess_constraints PARAMS ((void));
extern rtx peep2_next_insn PARAMS ((int));
extern int peep2_regno_dead_p PARAMS ((int, int));
extern int peep2_reg_dead_p PARAMS ((int, rtx));
#ifdef CLEAR_HARD_REG_SET
extern rtx peep2_find_free_register PARAMS ((int, int, const char *,
enum machine_mode,
HARD_REG_SET *));
#endif
extern void peephole2_optimize PARAMS ((FILE *));
extern rtx peephole2_insns PARAMS ((rtx, rtx, int *));
extern int store_data_bypass_p PARAMS ((rtx, rtx));
extern int if_test_bypass_p PARAMS ((rtx, rtx));
extern int volatile_ok;
extern int which_alternative;
struct recog_data
{
rtx operand[MAX_RECOG_OPERANDS];
rtx *operand_loc[MAX_RECOG_OPERANDS];
const char *constraints[MAX_RECOG_OPERANDS];
enum machine_mode operand_mode[MAX_RECOG_OPERANDS];
enum op_type operand_type[MAX_RECOG_OPERANDS];
rtx *dup_loc[MAX_DUP_OPERANDS];
char dup_num[MAX_DUP_OPERANDS];
char n_operands;
char n_dups;
char n_alternatives;
rtx insn;
};
extern struct recog_data recog_data;
extern struct operand_alternative recog_op_alt[MAX_RECOG_OPERANDS][MAX_RECOG_ALTERNATIVES];
typedef int (*insn_operand_predicate_fn) PARAMS ((rtx, enum machine_mode));
typedef const char * (*insn_output_fn) PARAMS ((rtx *, rtx));
typedef rtx (*insn_gen_fn) PARAMS ((rtx, ...));
struct insn_operand_data
{
const insn_operand_predicate_fn predicate;
const char *const constraint;
const ENUM_BITFIELD(machine_mode) mode : 16;
const char strict_low;
const char eliminable;
};
#define INSN_OUTPUT_FORMAT_NONE 0
#define INSN_OUTPUT_FORMAT_SINGLE 1
#define INSN_OUTPUT_FORMAT_MULTI 2
#define INSN_OUTPUT_FORMAT_FUNCTION 3
struct insn_data
{
const char *const name;
const PTR output;
const insn_gen_fn genfun;
const struct insn_operand_data *const operand;
const char n_operands;
const char n_dups;
const char n_alternatives;
const char output_format;
};
extern const struct insn_data insn_data[];