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Copy pathjit.cpp
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210 lines (198 loc) · 5.83 KB
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#include <gperl.hpp>
#ifdef USING_JIT
GPerlJmpInfo::GPerlJmpInfo(int _jmp_count) : jmp_count(_jmp_count)
{
label = jit_label_undefined;
}
GPerlJmpStack::GPerlJmpStack(void)
{
infs = (GPerlJmpInfo **)safe_malloc(sizeof(GPerlJmpInfo) * MAX_JMP_STACK_SIZE);
jmp_stack_idx = 0;
}
void GPerlJmpStack::push(GPerlJmpInfo *inf)
{
infs[jmp_stack_idx] = inf;
jmp_stack_idx++;
if (jmp_stack_idx > MAX_JMP_STACK_SIZE) {
fprintf(stderr, "Overflow JMP_STACK_SIZE\n");
}
}
GPerlJmpInfo *GPerlJmpStack::pop(void)
{
GPerlJmpInfo *inf = infs[--jmp_stack_idx];
infs[jmp_stack_idx] = NULL;
return inf;
}
bool GPerlJmpStack::isJmp(void)
{
bool ret = false;
for (int i = 0; i < jmp_stack_idx; i++) {
infs[i]->jmp_count--;
if (infs[i]->jmp_count < 1) {
ret = true;
break;
}
}
return ret;
}
GPerlJITCompiler::GPerlJITCompiler(void)
{
}
unsigned int GPerlJITCompiler::compile(GPerlVirtualMachineCode *codes, GPerlJITEnv *env)
{
GPerlVirtualMachineCode *pc = codes;
return _compile(pc, env);
}
unsigned int GPerlJITCompiler::_compile(GPerlVirtualMachineCode *codes, GPerlJITEnv *env)
{
GPerlVirtualMachineCode *pc = codes;
jit_context_t ctx = jit_context_create();
jit_context_build_start(ctx);
GPerlArgsArray *args = env->args;
int argc = args->size;
int arg_size = argc;
jit_type_t _params[argc];
int i = 0;
for (i = 0; i < argc; i++) {
switch (TYPE_CHECK(args->list[i])) {
case 0: /* Double */
_params[i] = jit_type_nfloat;
break;
case 1: /* Int */
_params[i] = jit_type_int;
break;
case 2: /* String */
break;
case 3: /* Object */
break;
default:
break;
}
}
jit_value_t curstack[32] = {0};
jit_value_t argstack[MAX_ARGSTACK_SIZE] = {0};
jit_type_t _signature = jit_type_create_signature(jit_abi_fastcall, jit_type_uint, _params, argc, 0);
jit_function_t func = jit_function_create(ctx, _signature);
jit_value_t _v[MAX_REG_SIZE] = {0};
GPerlJmpStack *jmp_stack = new GPerlJmpStack();
argc = 0;
for (; pc->op != UNDEF; pc++) {
if (jmp_stack->isJmp()) {
GPerlJmpInfo *inf = jmp_stack->pop();
jit_insn_label(func, &inf->label);
}
switch (pc->op) {
case LET:
curstack[pc->dst] = _v[pc->src];
break;
case MOV:
_v[pc->dst] = compileMOV(pc, &func);
break;
case vMOV:
_v[pc->dst] = curstack[pc->src];
break;
case gMOV:
break;
case ARGMOV:
_v[pc->dst] = jit_value_get_param(func, pc->src);
break;
case ADD:
_v[pc->dst] = jit_insn_add(func, _v[pc->dst], _v[pc->src]);
break;
case iADDC:
break;
case iJLC: {
jit_value_t c = jit_value_create_nint_constant(func, jit_type_int, pc->v.ivalue);
jit_value_t tmp = jit_insn_lt(func, _v[pc->dst], c);
GPerlJmpInfo *inf = new GPerlJmpInfo(pc->jmp);
jmp_stack->push(inf);
jit_insn_branch_if_not(func, tmp, &inf->label);
break;
}
case iJLEC: {
jit_value_t c = jit_value_create_nint_constant(func, jit_type_int, pc->v.ivalue);
jit_value_t tmp = jit_insn_le(func, _v[pc->dst], c);
GPerlJmpInfo *inf = new GPerlJmpInfo(pc->jmp);
jmp_stack->push(inf);
jit_insn_branch_if_not(func, tmp, &inf->label);
break;
}
case JE: {
jit_value_t tmp = jit_insn_eq(func, _v[pc->dst], _v[pc->src]);
GPerlJmpInfo *inf = new GPerlJmpInfo(pc->jmp);
jmp_stack->push(inf);
jit_insn_branch_if_not(func, tmp, &inf->label);
break;
}
case JLE: {
jit_value_t tmp = jit_insn_le(func, _v[pc->dst], _v[pc->src]);
GPerlJmpInfo *inf = new GPerlJmpInfo(pc->jmp);
jmp_stack->push(inf);
jit_insn_branch_if_not(func, tmp, &inf->label);
break;
}
case iSUBC: {
jit_value_t c = jit_value_create_nint_constant(func, jit_type_int, pc->v.ivalue);
_v[pc->dst] = jit_insn_sub(func, _v[pc->dst], c);
break;
}
case PUSH:
argstack[pc->src] = _v[pc->dst];
argc++;
break;
case SELFCALL: {
_v[pc->dst] = jit_insn_call(func, "", func, NULL, argstack, argc, 0);//JIT_CALL_TAIL);
argc = 0;
break;
}
case RET:
_v[0] = _v[pc->src];
jit_insn_return(func, _v[0]);
break;
default:
break;
}
}
jit_function_compile(func);
jit_context_build_end(ctx);
void *jit_args[argc];
jit_uint result;
for (int i = 0; i < arg_size; i++) {
switch (TYPE_CHECK(args->list[i])) {
case 0: /* Double */
jit_args[i] = &args->list[i].dvalue;
break;
case 1: /* Int */
jit_args[i] = &args->list[i].ivalue;
break;
case 2: /* String */
break;
case 3: /* Object */
break;
default:
break;
}
}
jit_function_apply(func, jit_args, &result);
//fprintf(stderr, "result = [%u]\n", (unsigned int)result);
return (unsigned int)result;
}
jit_value_t GPerlJITCompiler::compileMOV(GPerlVirtualMachineCode *pc, jit_function_t *func)
{
jit_value_t ret = NULL;
switch (TYPE_CHECK(pc->v)) {
case 0:
break;
case 1:
ret = jit_value_create_nint_constant(*func, jit_type_int, pc->v.ivalue);
break;
case 2:
break;
case 3:
break;
default:
break;
}
return ret;
}
#endif