ack/mach/proto/mcg/hop.h
David Given 288ee56203 Get quite a long way towards basic output-register equality constraints (needed
to make special nodes like NOP work properly). Realise that the way I'm dealing
with the instruction selector is all wrong; I need to physically copy chunks of
tree to give to burg (so I can terminate them correctly).
2016-10-02 23:25:54 +02:00

44 lines
702 B
C

#ifndef HOP_H
#define HOP_H
enum insel_type
{
INSEL_STRING,
INSEL_VREG,
INSEL_VALUE,
INSEL_EOI
};
struct insel
{
enum insel_type type;
union
{
const char* string;
struct vreg* vreg;
struct ir* value;
}
u;
};
struct hop
{
int id;
int insn_no;
struct ir* ir;
ARRAYOF(struct insel) insels;
struct vreg* output;
};
extern struct hop* new_hop(int insn_no, struct ir* ir);
extern void hop_add_string_insel(struct hop* hop, const char* string);
extern void hop_add_vreg_insel(struct hop* hop, struct vreg* vreg);
extern void hop_add_value_insel(struct hop* hop, struct ir* ir);
extern void hop_add_eoi_insel(struct hop* hop);
extern void hop_print(char k, struct hop* hop);
#endif