void emitDecrement(jit_function_t function, jit_value_t ptr, ops *unit) {
jit_value_t tmp = jit_insn_load_relative(function, ptr, 0, jit_type_ubyte);
jit_value_t numbyte = jit_value_create_nint_constant(function, jit_type_ubyte, unit->count);
tmp = jit_insn_sub(function, tmp, numbyte);
tmp = jit_insn_convert(function, tmp, jit_type_ubyte, 0);
jit_insn_store_relative(function, ptr, 0, tmp);
}
void JitInstanceMemberFunction::compileVTableIndirectionFunction()
{
m_jit_virtual_indirection_function = jit_function_create((jit_context_t)m_jit_context.context, toJitSignature(m_eAbi, getSignature()));
o_assert(m_jit_virtual_indirection_function.function);
jit_context_build_start((jit_context_t)m_jit_context.context);
size_t argCount = getSignature()->getParameterCount()+1; // parameters+this
jit_value_t* args = o_allocate_n(argCount, jit_value_t);
// The indirection has the same signature as the indirected one
jit_value_t this_pointer = jit_value_get_param((jit_function_t)m_jit_virtual_indirection_function.function, 0);
jit_value_t vtable_index = jit_value_create_nint_constant((jit_function_t)m_jit_virtual_indirection_function.function, jit_type_nuint, getInstanceMemberFunction()->getVirtualTableIndex());
jit_value_t vtable_array = jit_insn_load_relative ((jit_function_t)m_jit_virtual_indirection_function.function, this_pointer, 0, jit_type_void_ptr);
jit_value_t vtable_pointer = jit_insn_load_elem((jit_function_t)m_jit_virtual_indirection_function.function, vtable_array, vtable_index, jit_type_void_ptr);
size_t i = 0;
for(;i<argCount;++i)
{
args[i] = jit_value_get_param((jit_function_t)m_jit_virtual_indirection_function.function, i);
}
jit_insn_call_indirect_vtable ((jit_function_t)m_jit_virtual_indirection_function.function, vtable_pointer, jit_function_get_signature((jit_function_t)m_jit_function.function), args, argCount, 0);
int result = jit_function_compile((jit_function_t)m_jit_virtual_indirection_function.function);
o_assert(result != 0);
jit_context_build_end((jit_context_t)m_jit_context.context);
o_deallocate_n(args, argCount, jit_value_t);
}
void *LibJITFormula::emit (VariableExprAST *expr)
{
// Create a pointer temporary with the address stored in it
jit_value_t pointer = jit_value_create_nint_constant (function, jit_type_void_ptr,
(jit_nint)expr->pointer);
// Create a load instruction for this address
return jit_insn_load_relative (function, pointer, 0, jit_type_float64);
}
/*
* Get the length of a string.
*/
static ILJitValue _ILJitStringGetLength(ILJitFunction jitFunction,
ILJitValue string)
{
ILJitValue len;
len = jit_insn_load_relative(jitFunction,
string,
offsetof(System_String, length),
_IL_JIT_TYPE_INT32);
return len;
}
/* Given a struct name, the name of a struct member, and a jit pointer,
* to the struct, return a jit value of the member within the struct.
*/
static VALUE function_ruby_struct_member(
VALUE self, VALUE struct_name, VALUE member_name, VALUE ptr_v)
{
jit_function_t function;
jit_value_t ptr = get_value(ptr_v, "ptr");
jit_value_t result;
struct Member_Info * member_info = get_member_info(
struct_name,
member_name);
Data_Get_Struct(self, struct _jit_function, function);
result = jit_insn_load_relative(
function, ptr, member_info->offset, member_info->type);
return Data_Wrap_Struct(rb_cValue, 0, 0, result);
}
Compiler::value System_operations(Compiler& c) {
jit_value_t jit_ops_ptr = jit_value_create_long_constant(c.F, jit_type_void_ptr, (long int) &c.vm->operations);
return {jit_insn_load_relative(c.F, jit_ops_ptr, 0, jit_type_uint), Type::LONG};
}
jit_function_t bf_compile(jit_context_t cx, FILE *fp) {
jit_type_t params[1], putchar_params[1], signature, putchar_sig, getchar_sig;
jit_value_t ptr, uptr, ubyte, tmp;
bf_loop_t loop = NULL;
ubyte_ptr = jit_type_create_pointer(jit_type_ubyte, 1);
params[0] = ubyte_ptr;
putchar_params[0] = jit_type_ubyte;
signature = jit_type_create_signature(jit_abi_cdecl, jit_type_void, params, 1, 1);
putchar_sig = jit_type_create_signature(jit_abi_cdecl, jit_type_ubyte, putchar_params, 1, 1);
getchar_sig = jit_type_create_signature(jit_abi_cdecl, jit_type_ubyte, NULL, 0, 1);
jit_function_t function = jit_function_create(cx, signature);
ptr = jit_value_get_param(function, 0);
uptr = jit_value_create_nint_constant(function, ubyte_ptr, 1);
ubyte = jit_value_create_nint_constant(function, jit_type_ubyte, 1);
ops *unit = (ops*)malloc(sizeof(ops));
unit->count = 0;
int first = 1;
while(!feof(fp)) {
char c = fgetc(fp);
if (first) {
unit->token = c;
first = 0;
}
switch(c) {
case '>':
OPTIMIZE_TOKEN('>')
case '<':
OPTIMIZE_TOKEN('<')
case '+':
OPTIMIZE_TOKEN('+')
case '-':
OPTIMIZE_TOKEN('-')
case '.':
emitOpcodes(function, ptr, unit);
unit->token = '.';
tmp = jit_insn_load_relative(function, ptr, 0, jit_type_ubyte);
jit_insn_call_native(function, "putchar", putchar, putchar_sig, &tmp, 1, JIT_CALL_NOTHROW);
break;
case ',':
emitOpcodes(function, ptr, unit);
unit->token = ',';
jit_insn_call_native(function, "getchar", getchar, getchar_sig, NULL, 0, JIT_CALL_NOTHROW);
jit_insn_store_relative(function, ptr, 0, tmp);
break;
case '[':
emitOpcodes(function, ptr, unit);
unit->token = '[';
loop_start(function, &loop);
tmp = jit_insn_load_relative(function, ptr, 0, jit_type_ubyte);
jit_insn_branch_if_not(function, tmp, &loop->stop);
break;
case ']':
emitOpcodes(function, ptr, unit);
unit->token = ']';
loop_stop(function, &loop);
break;
}
}
jit_insn_return(function, NULL);
jit_function_compile(function);
return function;
}
jit_value jit_function::insn_load_relative
(const jit_value& value, jit_nint offset, jit_type_t type)
{
value_wrap(jit_insn_load_relative(func, value.raw(), offset, type));
}
jit_function_t GPerlJITCompiler::compile(JITParam *param)
{
GPerlVirtualMachineCode *pc = param->mtd;
jit_context_t ctx = jit_context_create();
jit_context_build_start(ctx);
int argc = param->argc;
jit_type_t _params[argc];
for (int i = 0; i < argc; i++) {
_params[i] = getJitType(param->arg_types[i]);
}
jit_type_t rtype = getJitType(param->return_type);
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, rtype, _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:
DBG_PL("COMPILE LET");
curstack[pc->dst] = _v[pc->src];
break;
case MOV:
DBG_PL("COMPILE MOV");
_v[pc->dst] = compileMOV(pc, &func);
break;
case ARRAY_ARGAT: {
DBG_PL("COMPILE ARGAT");
jit_value_t arg = jit_value_get_param(func, pc->src);
jit_nint offset = 48;
jit_value_t list = jit_insn_load_relative(func, arg, offset, object_ptr_type);
jit_value_t idx = jit_value_create_nint_constant(func, jit_type_int, pc->idx);
jit_value_t elem = jit_insn_load_elem(func, list, idx, value_type);
_v[pc->dst] = elem;
break;
}
case vMOV:
DBG_PL("COMPILE vMOV");
_v[pc->dst] = curstack[pc->src];
break;
case gMOV:
break;
case ARGMOV:
DBG_PL("COMPILE ARGMOV");
_v[pc->dst] = jit_value_get_param(func, pc->src);
break;
case ADD:
DBG_PL("COMPILE ADD");
_v[pc->dst] = jit_insn_add(func, _v[pc->dst], _v[pc->src]);
break;
case SUB:
DBG_PL("COMPILE SUB");
_v[pc->dst] = jit_insn_sub(func, _v[pc->dst], _v[pc->src]);
break;
case iADDC: {
DBG_PL("COMPILE iADDC");
jit_value_t c = jit_value_create_nint_constant(func, jit_type_int, pc->v.ivalue);
_v[pc->dst] = jit_insn_add(func, _v[pc->dst], c);
break;
}
case iSUBC: {
DBG_PL("COMPILE 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 IS: {
DBG_PL("COMPILE IS");
jit_value_t c = jit_value_create_nint_constant(func, jit_type_int, 1);
jit_value_t tmp = jit_insn_eq(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 iJLC: {
DBG_PL("COMPILE 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: {
DBG_PL("COMPILE 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: {
DBG_PL("COMPILE 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: {
DBG_PL("COMPILE 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 PUSH:
DBG_PL("COMPILE PUSH");
argstack[pc->src] = _v[pc->dst];
argc++;
break;
case SELFCALL: {
DBG_PL("COMPILE SELFCALL");
_v[pc->dst] = jit_insn_call(func, "", func, NULL, argstack, argc, 0);//JIT_CALL_TAIL);
argc = 0;
break;
}
case SELF_FASTCALL0: {
DBG_PL("COMPILE SELF_FASTCALL0");
argstack[0] = _v[pc->arg0];
_v[pc->dst] = jit_insn_call(func, "", func, NULL, argstack, 1, 0);//JIT_CALL_TAIL);
break;
}
case SELF_FASTCALL1: {
DBG_PL("COMPILE SELF_FASTCALL1");
argstack[0] = _v[pc->arg0];
argstack[1] = _v[pc->arg1];
_v[pc->dst] = jit_insn_call(func, "", func, NULL, argstack, 2, 0);//JIT_CALL_TAIL);
break;
}
case SELF_FASTCALL2: {
DBG_PL("COMPILE SELF_FASTCALL2");
argstack[0] = _v[pc->arg0];
argstack[1] = _v[pc->arg1];
argstack[2] = _v[pc->arg2];
_v[pc->dst] = jit_insn_call(func, "", func, NULL, argstack, 3, 0);//JIT_CALL_TAIL);
break;
}
case SELF_FASTCALL3: {
DBG_PL("COMPILE SELF_FASTCALL3");
argstack[0] = _v[pc->arg0];
argstack[1] = _v[pc->arg1];
argstack[2] = _v[pc->arg2];
argstack[3] = _v[pc->arg3];
_v[pc->dst] = jit_insn_call(func, "", func, NULL, argstack, 4, 0);//JIT_CALL_TAIL);
break;
}
case REF: {
//int ret = 0;
//if (TYPE_CHECK(v) > 1) {
//GPerlObject *o = (GPerlObject *)getObject(v);
//if (o->h.type == ArrayRef) {
//ret = 1;
//}
//}
//INT_init(reg[0], ret);
break;
}
case RET: case JIT_COUNTDOWN_RET:
DBG_PL("COMPILE RET");
_v[0] = _v[pc->src];
jit_insn_return(func, _v[0]);
break;
default:
DBG_PL("COMPILE DEFALUT");
break;
}
}
jit_function_compile(func);
jit_context_build_end(ctx);
return func;
}