assem.h

/*
 * assem.h - Function prototypes to translate to Assem-instructions
 *             using Maximal Munch.
 */

#ifndef ASSEM_H
#define ASSEM_H

#include "temp.h"

typedef struct {
    Temp_labelList labels;
} * AS_targets;
AS_targets AS_Targets(Temp_labelList labels);

typedef struct AS_instr_ *AS_instr;
struct AS_instr_ {
    enum { I_OPER, I_LABEL, I_MOVE } kind;
    union {
        struct {
            string assem;
            Temp_tempList dst, src;
            AS_targets jumps;
        } OPER;
        struct {
            string assem;
            Temp_label label;
        } LABEL;
        struct {
            string assem;
            Temp_tempList dst, src;
        } MOVE;
    } u;
};

AS_instr AS_Oper(string a, Temp_tempList d, Temp_tempList s, AS_targets j);
AS_instr AS_Label(string a, Temp_label label);
AS_instr AS_Move(string a, Temp_tempList d, Temp_tempList s);

void AS_print(FILE *out, AS_instr i, Temp_map m);

typedef struct AS_instrList_ *AS_instrList;
struct AS_instrList_ {
    AS_instr head;
    AS_instrList tail;
};
AS_instrList AS_InstrList(AS_instr head, AS_instrList tail);

AS_instrList AS_splice(AS_instrList a, AS_instrList b);
void AS_printInstrList(FILE *out, AS_instrList iList, Temp_map m);

typedef struct AS_proc_ *AS_proc;
struct AS_proc_ {
    string prolog;
    AS_instrList body;
    string epilog;
};

AS_proc AS_Proc(string p, AS_instrList b, string e);

// TA's implementation. Just for reference.
AS_instrList AS_rewrite(AS_instrList iList, Temp_map m);
typedef struct F_frame_ *F_frame;
AS_instrList AS_rewriteSpill(F_frame f, AS_instrList il, Temp_tempList spills);

void AS_print2(FILE *, AS_instr);
void printCfgInfo(void *p);

#endif