ack/util/mcgg/mcgg.h
2016-09-29 22:32:43 +02:00

62 lines
1.5 KiB
C

#ifndef MCGG_H
#define MCGG_H
/* Excruciating macro which packs ir opcodes and sizes into an int for iburg's benefit.
*
* Sizes are mapped as: 0=1, 1=1, 2=2, 4=3, 8=4.
*/
#define ir_to_esn(iropcode, size) \
((iropcode)*4 + \
(((size) == 4) ? 2 : \
((size) == 8) ? 3 : \
((size) == 0) ? 0 : \
(size-1)))
#define STATE_TYPE void*
typedef struct ir* NODEPTR_TYPE;
#define STATE_LABEL(p) ((p)->state_label)
extern void* burm_label(struct ir* ir);
extern int burm_rule(void* state, int goalnt);
extern const short *burm_nts[];
extern struct ir** burm_kids(struct ir* p, int eruleno, struct ir* kids[]);
extern void burm_trace(struct ir* p, int ruleno, int cost, int bestcost);
struct burm_emitter_data
{
void (*emit_string)(const char* data);
void (*emit_fragment)(struct ir* ir, int goal);
void (*emit_reg)(struct ir* ir, int goal);
void (*emit_value)(struct ir* ir);
void (*emit_resultreg)(void);
void (*emit_eoi)(void);
void (*emit_usereg)(struct ir* ir);
};
typedef void burm_emitter_t(struct ir* ir, const struct burm_emitter_data* data);
struct burm_instruction_data
{
const char* name;
burm_emitter_t* emitter;
int allocate;
bool is_fragment;
};
extern const struct burm_instruction_data burm_instruction_data[];
struct burm_register_data
{
const char* name;
uint32_t classes;
};
extern const struct burm_register_data burm_register_data[];
extern const char* burm_register_class_names[];
#endif
/* vim: set sw=4 ts=4 expandtab : */