JVMState* DirectCallGenerator::generate(JVMState* jvms, Parse* parent_parser) {
GraphKit kit(jvms);
bool is_static = method()->is_static();
address target = is_static ? SharedRuntime::get_resolve_static_call_stub()
: SharedRuntime::get_resolve_opt_virtual_call_stub();
if (kit.C->log() != NULL) {
kit.C->log()->elem("direct_call bci='%d'", jvms->bci());
}
CallStaticJavaNode *call = new (kit.C) CallStaticJavaNode(kit.C, tf(), target, method(), kit.bci());
_call_node = call; // Save the call node in case we need it later
if (!is_static) {
// Make an explicit receiver null_check as part of this call.
// Since we share a map with the caller, his JVMS gets adjusted.
kit.null_check_receiver_before_call(method());
if (kit.stopped()) {
// And dump it back to the caller, decorated with any exceptions:
return kit.transfer_exceptions_into_jvms();
}
// Mark the call node as virtual, sort of:
call->set_optimized_virtual(true);
if (method()->is_method_handle_intrinsic() ||
method()->is_compiled_lambda_form()) {
call->set_method_handle_invoke(true);
}
}
kit.set_arguments_for_java_call(call);
kit.set_edges_for_java_call(call, false, _separate_io_proj);
Node* ret = kit.set_results_for_java_call(call, _separate_io_proj);
kit.push_node(method()->return_type()->basic_type(), ret);
return kit.transfer_exceptions_into_jvms();
}
JVMState* DirectCallGenerator::generate(JVMState* jvms) {
GraphKit kit(jvms);
kit.C->print_inlining_update(this);
bool is_static = method()->is_static();
address target = is_static ? SharedRuntime::get_resolve_static_call_stub()
: SharedRuntime::get_resolve_opt_virtual_call_stub();
if (kit.C->log() != NULL) {
kit.C->log()->elem("direct_call bci='%d'", jvms->bci());
}
CallStaticJavaNode *call = new CallStaticJavaNode(kit.C, tf(), target, method(), kit.bci());
if (is_inlined_mh_linker(jvms, method())) {
// To be able to issue a direct call and skip a call to MH.linkTo*/invokeBasic adapter,
// additional information about the method being invoked should be attached
// to the call site to make resolution logic work
// (see SharedRuntime::resolve_static_call_C).
call->set_override_symbolic_info(true);
}
_call_node = call; // Save the call node in case we need it later
if (!is_static) {
// Make an explicit receiver null_check as part of this call.
// Since we share a map with the caller, his JVMS gets adjusted.
kit.null_check_receiver_before_call(method());
if (kit.stopped()) {
// And dump it back to the caller, decorated with any exceptions:
return kit.transfer_exceptions_into_jvms();
}
// Mark the call node as virtual, sort of:
call->set_optimized_virtual(true);
if (method()->is_method_handle_intrinsic() ||
method()->is_compiled_lambda_form()) {
call->set_method_handle_invoke(true);
}
}
kit.set_arguments_for_java_call(call);
kit.set_edges_for_java_call(call, false, _separate_io_proj);
Node* ret = kit.set_results_for_java_call(call, _separate_io_proj);
kit.push_node(method()->return_type()->basic_type(), ret);
return kit.transfer_exceptions_into_jvms();
}
//-------------------------------is_uncommon_trap_proj----------------------------
// Return uncommon trap call node if proj is for "proj->[region->..]call_uct"
// NULL otherwise
CallStaticJavaNode* ProjNode::is_uncommon_trap_proj(Deoptimization::DeoptReason reason) {
int path_limit = 10;
Node* out = this;
for (int ct = 0; ct < path_limit; ct++) {
out = out->unique_ctrl_out();
if (out == NULL)
return NULL;
if (out->is_CallStaticJava()) {
CallStaticJavaNode* call = out->as_CallStaticJava();
int req = call->uncommon_trap_request();
if (req != 0) {
Deoptimization::DeoptReason trap_reason = Deoptimization::trap_request_reason(req);
if (trap_reason == reason || reason == Deoptimization::Reason_none) {
return call;
}
}
return NULL; // don't do further after call
}
if (out->Opcode() != Op_Region)
return NULL;
}
return NULL;
}
JVMState* DynamicCallGenerator::generate(JVMState* jvms) {
GraphKit kit(jvms);
Compile* C = kit.C;
PhaseGVN& gvn = kit.gvn();
if (C->log() != NULL) {
C->log()->elem("dynamic_call bci='%d'", jvms->bci());
}
// Get the constant pool cache from the caller class.
ciMethod* caller_method = jvms->method();
ciBytecodeStream str(caller_method);
str.force_bci(jvms->bci()); // Set the stream to the invokedynamic bci.
assert(str.cur_bc() == Bytecodes::_invokedynamic, "wrong place to issue a dynamic call!");
ciCPCache* cpcache = str.get_cpcache();
// Get the offset of the CallSite from the constant pool cache
// pointer.
int index = str.get_method_index();
size_t call_site_offset = cpcache->get_f1_offset(index);
// Load the CallSite object from the constant pool cache.
const TypeOopPtr* cpcache_type = TypeOopPtr::make_from_constant(cpcache); // returns TypeAryPtr of type T_OBJECT
const TypeOopPtr* call_site_type = TypeOopPtr::make_from_klass(C->env()->CallSite_klass());
Node* cpcache_adr = kit.makecon(cpcache_type);
Node* call_site_adr = kit.basic_plus_adr(cpcache_adr, call_site_offset);
// The oops in the constant pool cache are not compressed; load then as raw pointers.
Node* call_site = kit.make_load(kit.control(), call_site_adr, call_site_type, T_ADDRESS, Compile::AliasIdxRaw);
// Load the target MethodHandle from the CallSite object.
const TypeOopPtr* target_type = TypeOopPtr::make_from_klass(C->env()->MethodHandle_klass());
Node* target_mh_adr = kit.basic_plus_adr(call_site, java_lang_invoke_CallSite::target_offset_in_bytes());
Node* target_mh = kit.make_load(kit.control(), target_mh_adr, target_type, T_OBJECT);
address resolve_stub = SharedRuntime::get_resolve_opt_virtual_call_stub();
CallStaticJavaNode* call = new (C, tf()->domain()->cnt()) CallStaticJavaNode(tf(), resolve_stub, method(), kit.bci());
// invokedynamic is treated as an optimized invokevirtual.
call->set_optimized_virtual(true);
// Take extra care (in the presence of argument motion) not to trash the SP:
call->set_method_handle_invoke(true);
// Pass the target MethodHandle as first argument and shift the
// other arguments.
call->init_req(0 + TypeFunc::Parms, target_mh);
uint nargs = call->method()->arg_size();
for (uint i = 1; i < nargs; i++) {
Node* arg = kit.argument(i - 1);
call->init_req(i + TypeFunc::Parms, arg);
}
kit.set_edges_for_java_call(call);
Node* ret = kit.set_results_for_java_call(call);
kit.push_node(method()->return_type()->basic_type(), ret);
return kit.transfer_exceptions_into_jvms();
}
void LateInlineCallGenerator::do_late_inline() {
// Can't inline it
CallStaticJavaNode* call = call_node();
if (call == NULL || call->outcnt() == 0 ||
call->in(0) == NULL || call->in(0)->is_top()) {
return;
}
const TypeTuple *r = call->tf()->domain();
for (int i1 = 0; i1 < method()->arg_size(); i1++) {
if (call->in(TypeFunc::Parms + i1)->is_top() && r->field_at(TypeFunc::Parms + i1) != Type::HALF) {
assert(Compile::current()->inlining_incrementally(), "shouldn't happen during parsing");
return;
}
}
if (call->in(TypeFunc::Memory)->is_top()) {
assert(Compile::current()->inlining_incrementally(), "shouldn't happen during parsing");
return;
}
Compile* C = Compile::current();
// Remove inlined methods from Compiler's lists.
if (call->is_macro()) {
C->remove_macro_node(call);
}
// Make a clone of the JVMState that appropriate to use for driving a parse
JVMState* old_jvms = call->jvms();
JVMState* jvms = old_jvms->clone_shallow(C);
uint size = call->req();
SafePointNode* map = new (C) SafePointNode(size, jvms);
for (uint i1 = 0; i1 < size; i1++) {
map->init_req(i1, call->in(i1));
}
// Make sure the state is a MergeMem for parsing.
if (!map->in(TypeFunc::Memory)->is_MergeMem()) {
Node* mem = MergeMemNode::make(C, map->in(TypeFunc::Memory));
C->initial_gvn()->set_type_bottom(mem);
map->set_req(TypeFunc::Memory, mem);
}
uint nargs = method()->arg_size();
// blow away old call arguments
Node* top = C->top();
for (uint i1 = 0; i1 < nargs; i1++) {
map->set_req(TypeFunc::Parms + i1, top);
}
jvms->set_map(map);
// Make enough space in the expression stack to transfer
// the incoming arguments and return value.
map->ensure_stack(jvms, jvms->method()->max_stack());
for (uint i1 = 0; i1 < nargs; i1++) {
map->set_argument(jvms, i1, call->in(TypeFunc::Parms + i1));
}
// This check is done here because for_method_handle_inline() method
// needs jvms for inlined state.
if (!do_late_inline_check(jvms)) {
map->disconnect_inputs(NULL, C);
return;
}
C->print_inlining_insert(this);
CompileLog* log = C->log();
if (log != NULL) {
log->head("late_inline method='%d'", log->identify(method()));
JVMState* p = jvms;
while (p != NULL) {
log->elem("jvms bci='%d' method='%d'", p->bci(), log->identify(p->method()));
p = p->caller();
}
log->tail("late_inline");
}
// Setup default node notes to be picked up by the inlining
Node_Notes* old_nn = C->default_node_notes();
if (old_nn != NULL) {
Node_Notes* entry_nn = old_nn->clone(C);
entry_nn->set_jvms(jvms);
C->set_default_node_notes(entry_nn);
}
// Now perform the inling using the synthesized JVMState
JVMState* new_jvms = _inline_cg->generate(jvms, NULL);
if (new_jvms == NULL) return; // no change
if (C->failing()) return;
// Capture any exceptional control flow
GraphKit kit(new_jvms);
// Find the result object
Node* result = C->top();
int result_size = method()->return_type()->size();
if (result_size != 0 && !kit.stopped()) {
result = (result_size == 1) ? kit.pop() : kit.pop_pair();
}
C->set_has_loops(C->has_loops() || _inline_cg->method()->has_loops());
C->env()->notice_inlined_method(_inline_cg->method());
C->set_inlining_progress(true);
kit.replace_call(call, result);
}
void LateInlineCallGenerator::do_late_inline() {
// Can't inline it
if (call_node() == NULL || call_node()->outcnt() == 0 ||
call_node()->in(0) == NULL || call_node()->in(0)->is_top())
return;
CallStaticJavaNode* call = call_node();
// Make a clone of the JVMState that appropriate to use for driving a parse
Compile* C = Compile::current();
JVMState* jvms = call->jvms()->clone_shallow(C);
uint size = call->req();
SafePointNode* map = new (C, size) SafePointNode(size, jvms);
for (uint i1 = 0; i1 < size; i1++) {
map->init_req(i1, call->in(i1));
}
// Make sure the state is a MergeMem for parsing.
if (!map->in(TypeFunc::Memory)->is_MergeMem()) {
map->set_req(TypeFunc::Memory, MergeMemNode::make(C, map->in(TypeFunc::Memory)));
}
// Make enough space for the expression stack and transfer the incoming arguments
int nargs = method()->arg_size();
jvms->set_map(map);
map->ensure_stack(jvms, jvms->method()->max_stack());
if (nargs > 0) {
for (int i1 = 0; i1 < nargs; i1++) {
map->set_req(i1 + jvms->argoff(), call->in(TypeFunc::Parms + i1));
}
}
CompileLog* log = C->log();
if (log != NULL) {
log->head("late_inline method='%d'", log->identify(method()));
JVMState* p = jvms;
while (p != NULL) {
log->elem("jvms bci='%d' method='%d'", p->bci(), log->identify(p->method()));
p = p->caller();
}
log->tail("late_inline");
}
// Setup default node notes to be picked up by the inlining
Node_Notes* old_nn = C->default_node_notes();
if (old_nn != NULL) {
Node_Notes* entry_nn = old_nn->clone(C);
entry_nn->set_jvms(jvms);
C->set_default_node_notes(entry_nn);
}
// Now perform the inling using the synthesized JVMState
JVMState* new_jvms = _inline_cg->generate(jvms);
if (new_jvms == NULL) return; // no change
if (C->failing()) return;
// Capture any exceptional control flow
GraphKit kit(new_jvms);
// Find the result object
Node* result = C->top();
int result_size = method()->return_type()->size();
if (result_size != 0 && !kit.stopped()) {
result = (result_size == 1) ? kit.pop() : kit.pop_pair();
}
kit.replace_call(call, result);
}