105 lines
2.1 KiB
C
105 lines
2.1 KiB
C
#include "ir.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
const char *irinstr_str[IRInstrEnumSize] = {
|
|
[IRSet] = "set",
|
|
[IRNeg] = "neg",
|
|
[IRAdd] = "add",
|
|
[IRSub] = "sub",
|
|
[IRMul] = "mul",
|
|
[IRDiv] = "div",
|
|
[IRPrint] = "print",
|
|
[IRJnz] = "jnz",
|
|
};
|
|
|
|
#define IRTOKS_INIT_CAP 4096
|
|
|
|
void irtoks_init(IRToks *v) {
|
|
v->toks = malloc(sizeof(IRTok) * IRTOKS_INIT_CAP);
|
|
v->len = 0;
|
|
v->cap = IRTOKS_INIT_CAP;
|
|
}
|
|
|
|
void irtoks_term(IRToks *v) {
|
|
for (size_t i = 0; i < v->len; i++) {
|
|
if (v->toks[i].instr == IRPrint) {
|
|
for (IRArgs *a = v->toks[i].Print.args; a != NULL;) {
|
|
IRArgs *next = a->next;
|
|
free(a);
|
|
a = next;
|
|
}
|
|
}
|
|
}
|
|
free(v->toks);
|
|
}
|
|
|
|
void irtoks_app(IRToks *v, IRTok t) {
|
|
if (v->len+1 > v->cap)
|
|
v->toks = realloc(v->toks, sizeof(IRTok) * (v->cap *= 2));
|
|
v->toks[v->len++] = t;
|
|
}
|
|
|
|
static void print_val(const Value *v);
|
|
static void print_irparam(const IRParam *p);
|
|
|
|
static void print_val(const Value *v) {
|
|
switch (v->type.kind) {
|
|
case TypeFloat:
|
|
printf("%f", v->Float);
|
|
break;
|
|
case TypeInt:
|
|
printf("%zd", v->Int);
|
|
break;
|
|
default:
|
|
printf("(unknown type)");
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void print_irparam(const IRParam *p) {
|
|
if (p->kind == IRParamLiteral) {
|
|
print_val(&p->Literal);
|
|
} else if (p->kind == IRParamAddr) {
|
|
printf("%%%zd", p->Addr);
|
|
}
|
|
}
|
|
|
|
void print_ir(IRToks *v) {
|
|
for (size_t i = 0; i < v->len; i++) {
|
|
printf("%s", irinstr_str[v->toks[i].instr]);
|
|
switch (v->toks[i].instr) {
|
|
case IRSet:
|
|
case IRNeg:
|
|
printf(" %%%zu ", v->toks[i].Unary.addr);
|
|
print_irparam(&v->toks[i].Unary.val);
|
|
break;
|
|
case IRAdd:
|
|
case IRSub:
|
|
case IRDiv:
|
|
case IRMul:
|
|
printf(" %%%zu ", v->toks[i].Arith.addr);
|
|
print_irparam(&v->toks[i].Arith.lhs);
|
|
printf(" ");
|
|
print_irparam(&v->toks[i].Arith.rhs);
|
|
break;
|
|
case IRPrint:
|
|
for (IRArgs *a = v->toks[i].Print.args; a != NULL; a = a->next) {
|
|
printf(" ");
|
|
print_irparam(&a->param);
|
|
}
|
|
break;
|
|
case IRJnz:
|
|
printf(" ");
|
|
print_irparam(&v->toks[i].CJmp.condition);
|
|
printf(" %zu", v->toks[i].CJmp.iaddr);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
printf(" ; %zu:%zu", v->toks[i].ln, v->toks[i].col);
|
|
printf("\n");
|
|
}
|
|
}
|