ack/mach/proto/mcg/ir.h
David Given 68f98cbad7 Instruction selection now happens on a shadow tree, rather than on the IR tree
itself. Currently it's semantically the same but the implementation is cleaner.
2016-10-03 20:52:36 +02:00

49 lines
1.1 KiB
C

#ifndef IR_H
#define IR_H
#include "ircodes.h"
struct ir
{
int id;
enum ir_opcode opcode;
int size;
struct ir* left;
struct ir* right;
struct ir* root;
union
{
arith ivalue;
int rvalue;
const char* lvalue;
struct basicblock* bvalue;
ARRAYOF(struct ir) phivalue;
} u;
IMAPOF(struct hop) hops; /* only for root IRs; by goal */
};
extern const char* ir_names[];
extern struct ir* new_ir0(int opcode, int size);
extern struct ir* new_ir1(int opcode, int size,
struct ir* c1);
extern struct ir* new_ir2(int opcode, int size,
struct ir* c1, struct ir* c2);
extern struct ir* new_labelir(const char* label);
extern struct ir* new_wordir(arith value);
extern struct ir* new_constir(int size, arith value);
extern struct ir* new_bbir(struct basicblock* bb);
extern struct ir* new_anyir(int size);
extern struct ir* new_localir(int offset);
typedef bool ir_walker_t(struct ir* node, void* user);
extern struct ir* ir_walk(struct ir* ir, ir_walker_t* callback, void* user);
extern struct ir* ir_find(struct ir* ir, int opcode);
extern void ir_print(char k, const struct ir* ir);
#endif