void LIRGenerator::do_NewMultiArray(NewMultiArray* x) {
Values* dims = x->dims();
int i = dims->length();
LIRItemList* items = new LIRItemList(dims->length(), NULL);
while (i-- > 0) {
LIRItem* size = new LIRItem(dims->at(i), this);
items->at_put(i, size);
}
// need to get the info before, as the items may become invalid through item_free
CodeEmitInfo* patching_info = NULL;
if (!x->klass()->is_loaded() || PatchALot) {
patching_info = state_for(x, x->state_before());
// cannot re-use same xhandlers for multiple CodeEmitInfos, so
// clone all handlers
x->set_exception_handlers(new XHandlers(x->exception_handlers()));
}
i = dims->length();
while (i-- > 0) {
LIRItem* size = items->at(i);
// if a patching_info was generated above then debug information for the state before
// the call is going to be emitted. The LIRGenerator calls above may have left some values
// in registers and that's been recorded in the CodeEmitInfo. In that case the items
// for those values can't simply be freed if they are registers because the values
// might be destroyed by store_stack_parameter. So in the case of patching, delay the
// freeing of the items that already were in registers
size->load_item();
store_stack_parameter (size->result(),
in_ByteSize(STACK_BIAS +
frame::memory_parameter_word_sp_offset * wordSize +
i * sizeof(jint)));
}
// This instruction can be deoptimized in the slow path : use
// O0 as result register.
const LIR_Opr reg = result_register_for(x->type());
CodeEmitInfo* info = state_for(x, x->state());
jobject2reg_with_patching(reg, x->klass(), patching_info);
LIR_Opr rank = FrameMap::O1_opr;
__ move(LIR_OprFact::intConst(x->rank()), rank);
LIR_Opr varargs = FrameMap::as_pointer_opr(O2);
int offset_from_sp = (frame::memory_parameter_word_sp_offset * wordSize) + STACK_BIAS;
__ add(FrameMap::SP_opr,
LIR_OprFact::intptrConst(offset_from_sp),
varargs);
LIR_OprList* args = new LIR_OprList(3);
args->append(reg);
args->append(rank);
args->append(varargs);
__ call_runtime(Runtime1::entry_for(Runtime1::new_multi_array_id),
LIR_OprFact::illegalOpr,
reg, args, info);
LIR_Opr result = rlock_result(x);
__ move(reg, result);
}
void LIRGenerator::do_MathIntrinsic(Intrinsic* x) {
switch (x->id()) {
case vmIntrinsics::_dabs:
case vmIntrinsics::_dsqrt: {
assert(x->number_of_arguments() == 1, "wrong type");
LIRItem value(x->argument_at(0), this);
value.load_item();
LIR_Opr dst = rlock_result(x);
switch (x->id()) {
case vmIntrinsics::_dsqrt: {
__ sqrt(value.result(), dst, LIR_OprFact::illegalOpr);
break;
}
case vmIntrinsics::_dabs: {
__ abs(value.result(), dst, LIR_OprFact::illegalOpr);
break;
}
}
break;
}
case vmIntrinsics::_dlog10: // fall through
case vmIntrinsics::_dlog: // fall through
case vmIntrinsics::_dsin: // fall through
case vmIntrinsics::_dtan: // fall through
case vmIntrinsics::_dcos: {
assert(x->number_of_arguments() == 1, "wrong type");
address runtime_entry = NULL;
switch (x->id()) {
case vmIntrinsics::_dsin:
runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dsin);
break;
case vmIntrinsics::_dcos:
runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dcos);
break;
case vmIntrinsics::_dtan:
runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dtan);
break;
case vmIntrinsics::_dlog:
runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dlog);
break;
case vmIntrinsics::_dlog10:
runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dlog10);
break;
default:
ShouldNotReachHere();
}
LIR_Opr result = call_runtime(x->argument_at(0), runtime_entry, x->type(), NULL);
set_result(x, result);
}
}
}
// for _ladd, _lmul, _lsub, _ldiv, _lrem
void LIRGenerator::do_ArithmeticOp_Long(ArithmeticOp* x) {
switch (x->op()) {
case Bytecodes::_lrem:
case Bytecodes::_lmul:
case Bytecodes::_ldiv: {
if (x->op() == Bytecodes::_ldiv || x->op() == Bytecodes::_lrem) {
LIRItem right(x->y(), this);
right.load_item();
CodeEmitInfo* info = state_for(x);
LIR_Opr item = right.result();
assert(item->is_register(), "must be");
__ cmp(lir_cond_equal, item, LIR_OprFact::longConst(0));
__ branch(lir_cond_equal, T_LONG, new DivByZeroStub(info));
}
address entry;
switch (x->op()) {
case Bytecodes::_lrem:
entry = CAST_FROM_FN_PTR(address, SharedRuntime::lrem);
break; // check if dividend is 0 is done elsewhere
case Bytecodes::_ldiv:
entry = CAST_FROM_FN_PTR(address, SharedRuntime::ldiv);
break; // check if dividend is 0 is done elsewhere
case Bytecodes::_lmul:
entry = CAST_FROM_FN_PTR(address, SharedRuntime::lmul);
break;
default:
ShouldNotReachHere();
}
// order of arguments to runtime call is reversed.
LIR_Opr result = call_runtime(x->y(), x->x(), entry, x->type(), NULL);
set_result(x, result);
break;
}
case Bytecodes::_ladd:
case Bytecodes::_lsub: {
LIRItem left(x->x(), this);
LIRItem right(x->y(), this);
left.load_item();
right.load_item();
rlock_result(x);
arithmetic_op_long(x->op(), x->operand(), left.result(), right.result(), NULL);
break;
}
default: ShouldNotReachHere();
}
}
void LIRGenerator::do_NewMultiArray(NewMultiArray* x) {
Values* dims = x->dims();
int i = dims->length();
LIRItemList* items = new LIRItemList(dims->length(), NULL);
while (i-- > 0) {
LIRItem* size = new LIRItem(dims->at(i), this);
items->at_put(i, size);
}
// Evaluate state_for early since it may emit code.
CodeEmitInfo* patching_info = NULL;
if (!x->klass()->is_loaded() || PatchALot) {
patching_info = state_for(x, x->state_before());
// cannot re-use same xhandlers for multiple CodeEmitInfos, so
// clone all handlers. This is handled transparently in other
// places by the CodeEmitInfo cloning logic but is handled
// specially here because a stub isn't being used.
x->set_exception_handlers(new XHandlers(x->exception_handlers()));
}
CodeEmitInfo* info = state_for(x, x->state());
i = dims->length();
while (i-- > 0) {
LIRItem* size = items->at(i);
size->load_nonconstant();
store_stack_parameter(size->result(), in_ByteSize(i*4));
}
LIR_Opr reg = result_register_for(x->type());
jobject2reg_with_patching(reg, x->klass(), patching_info);
LIR_Opr rank = FrameMap::rbx_opr;
__ move(LIR_OprFact::intConst(x->rank()), rank);
LIR_Opr varargs = FrameMap::rcx_opr;
__ move(FrameMap::rsp_opr, varargs);
LIR_OprList* args = new LIR_OprList(3);
args->append(reg);
args->append(rank);
args->append(varargs);
__ call_runtime(Runtime1::entry_for(Runtime1::new_multi_array_id),
LIR_OprFact::illegalOpr,
reg, args, info);
LIR_Opr result = rlock_result(x);
__ move(reg, result);
}
// for _fadd, _fmul, _fsub, _fdiv, _frem
// _dadd, _dmul, _dsub, _ddiv, _drem
void LIRGenerator::do_ArithmeticOp_FPU(ArithmeticOp* x) {
switch (x->op()) {
case Bytecodes::_fadd:
case Bytecodes::_fmul:
case Bytecodes::_fsub:
case Bytecodes::_fdiv:
case Bytecodes::_dadd:
case Bytecodes::_dmul:
case Bytecodes::_dsub:
case Bytecodes::_ddiv: {
LIRItem left(x->x(), this);
LIRItem right(x->y(), this);
left.load_item();
right.load_item();
rlock_result(x);
arithmetic_op_fpu(x->op(), x->operand(), left.result(), right.result(), x->is_strictfp());
}
break;
case Bytecodes::_frem:
case Bytecodes::_drem: {
address entry;
switch (x->op()) {
case Bytecodes::_frem:
entry = CAST_FROM_FN_PTR(address, SharedRuntime::frem);
break;
case Bytecodes::_drem:
entry = CAST_FROM_FN_PTR(address, SharedRuntime::drem);
break;
default:
ShouldNotReachHere();
}
LIR_Opr result = call_runtime(x->x(), x->y(), entry, x->type(), NULL);
set_result(x, result);
}
break;
default: ShouldNotReachHere();
}
}
// _i2l, _i2f, _i2d, _l2i, _l2f, _l2d, _f2i, _f2l, _f2d, _d2i, _d2l, _d2f
// _i2b, _i2c, _i2s
void LIRGenerator::do_Convert(Convert* x) {
switch (x->op()) {
case Bytecodes::_f2l:
case Bytecodes::_d2l:
case Bytecodes::_d2i:
case Bytecodes::_l2f:
case Bytecodes::_l2d: {
address entry;
switch (x->op()) {
case Bytecodes::_l2f:
entry = CAST_FROM_FN_PTR(address, SharedRuntime::l2f);
break;
case Bytecodes::_l2d:
entry = CAST_FROM_FN_PTR(address, SharedRuntime::l2d);
break;
case Bytecodes::_f2l:
entry = CAST_FROM_FN_PTR(address, SharedRuntime::f2l);
break;
case Bytecodes::_d2l:
entry = CAST_FROM_FN_PTR(address, SharedRuntime::d2l);
break;
case Bytecodes::_d2i:
entry = CAST_FROM_FN_PTR(address, SharedRuntime::d2i);
break;
default:
ShouldNotReachHere();
}
LIR_Opr result = call_runtime(x->value(), entry, x->type(), NULL);
set_result(x, result);
break;
}
case Bytecodes::_i2f:
case Bytecodes::_i2d: {
LIRItem value(x->value(), this);
LIR_Opr reg = rlock_result(x);
// To convert an int to double, we need to load the 32-bit int
// from memory into a single precision floating point register
// (even numbered). Then the sparc fitod instruction takes care
// of the conversion. This is a bit ugly, but is the best way to
// get the int value in a single precision floating point register
value.load_item();
LIR_Opr tmp = force_to_spill(value.result(), T_FLOAT);
__ convert(x->op(), tmp, reg);
break;
}
break;
case Bytecodes::_i2l:
case Bytecodes::_i2b:
case Bytecodes::_i2c:
case Bytecodes::_i2s:
case Bytecodes::_l2i:
case Bytecodes::_f2d:
case Bytecodes::_d2f: { // inline code
LIRItem value(x->value(), this);
value.load_item();
LIR_Opr reg = rlock_result(x);
__ convert(x->op(), value.result(), reg, false);
}
break;
case Bytecodes::_f2i: {
LIRItem value (x->value(), this);
value.set_destroys_register();
value.load_item();
LIR_Opr reg = rlock_result(x);
set_vreg_flag(reg, must_start_in_memory);
__ convert(x->op(), value.result(), reg, false);
}
break;
default: ShouldNotReachHere();
}
}
