< prev index next > src/hotspot/share/opto/parse1.cpp
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#include "compiler/compileLog.hpp"
#include "interpreter/linkResolver.hpp"
#include "memory/resourceArea.hpp"
#include "oops/method.hpp"
+ #include "oops/trainingData.hpp"
#include "opto/addnode.hpp"
#include "opto/c2compiler.hpp"
#include "opto/castnode.hpp"
#include "opto/idealGraphPrinter.hpp"
#include "opto/locknode.hpp"
#include "opto/parse.hpp"
#include "opto/rootnode.hpp"
#include "opto/runtime.hpp"
#include "opto/type.hpp"
#include "runtime/handles.inline.hpp"
+ #include "runtime/runtimeUpcalls.hpp"
#include "runtime/safepointMechanism.hpp"
#include "runtime/sharedRuntime.hpp"
#include "utilities/bitMap.inline.hpp"
#include "utilities/copy.hpp"
// clear current replaced nodes that are of no use from here on (map was cloned in build_exits).
_caller->map()->delete_replaced_nodes();
// If this is an inlined method, we may have to do a receiver null check.
- if (_caller->has_method() && is_normal_parse() && !method()->is_static()) {
+ if (_caller->has_method() && is_normal_parse()) {
GraphKit kit(_caller);
- kit.null_check_receiver_before_call(method());
+ if (!method()->is_static()) {
+ kit.null_check_receiver_before_call(method());
+ } else if (C->do_clinit_barriers() && C->needs_clinit_barrier(method()->holder(), _caller->method())) {
+ ciMethod* declared_method = kit.method()->get_method_at_bci(kit.bci());
+ const int nargs = declared_method->arg_size();
+ kit.inc_sp(nargs);
+ Node* holder = makecon(TypeKlassPtr::make(method()->holder(), Type::trust_interfaces));
+ kit.guard_klass_is_initialized(holder);
+ kit.dec_sp(nargs);
+ }
_caller = kit.transfer_exceptions_into_jvms();
if (kit.stopped()) {
_exits.add_exception_states_from(_caller);
_exits.set_jvms(_caller);
return nullptr;
SafePointNode* entry_map = stop();
return entry_map;
}
+ #if INCLUDE_CDS
+ static int scale_limit(int64_t limit) {
+ // To scale invocation limit a hyperbolic saturation curve formula
+ // is used with upper limit 100K.
+ return (int)(AOTCodeInvokeBase + limit / (1.0 + limit / (1000000.0 * AOTCodeInvokeScale)));
+ }
+
+ #define AOT_COUNT_INC 2
+ #define AOT_RECOMPILE_BIT 1
+
+ void Parse::count_aot_code_calls() {
+ bool is_aot_compilation = C->env()->is_aot_compile();
+ if (UseAOTCodeCounters && (depth() == 1) && is_aot_compilation) {
+ // Clear out dead values from the debug info in following runtime call
+ kill_dead_locals();
+
+ // Use method invocations count during training run and compare
+ // to invocations of AOT code during production run to trigger JIT
+ // compilation and replace AOT code with normal JITed code.
+ ciMetadata* mcp = method()->ensure_method_counters();
+ precond(mcp != nullptr);
+ const TypePtr* mc_type = TypeMetadataPtr::make(TypePtr::Constant, mcp, 0);
+ Node* mc = makecon(mc_type);
+
+ precond(MethodTrainingData::have_data());
+ methodHandle mh(Thread::current(), method()->get_Method());
+ MethodTrainingData* mtd = MethodTrainingData::find_fast(mh);
+ precond(mtd != nullptr);
+ int64_t limit = mtd->invocation_count();
+ int scaled_limit = AOT_COUNT_INC * scale_limit(limit);
+
+ // Count AOT compiled code invocations (use 32 bits because scaled limit fits into 32 bits)
+ intptr_t offset = in_bytes(MethodCounters::aot_code_invocation_counter_offset());
+ int step = AOT_COUNT_INC;
+ Node* cnt_adr = basic_plus_adr(C->top(), mc, offset);
+ Node* ctrl = control();
+ Node* cnt = make_load(ctrl, cnt_adr, TypeInt::INT, T_INT, MemNode::unordered);
+ Node* incr = _gvn.transform(new AddINode(cnt, intcon(step)));
+ store_to_memory(ctrl, cnt_adr, incr, T_INT, MemNode::unordered);
+ // Preserve memory for Phi node below
+ Node* st_mem = MergeMemNode::make(map()->memory());
+ _gvn.set_type_bottom(st_mem);
+
+ Node* lim = intcon(scaled_limit);
+ Node* chk = _gvn.transform( new CmpINode(incr, lim) );
+ Node* tst = _gvn.transform( new BoolNode(chk, BoolTest::lt) );
+ IfNode* iff = create_and_map_if(control(), tst, PROB_ALWAYS, (float)limit);
+
+ RegionNode* result_rgn = new RegionNode(4);
+ record_for_igvn(result_rgn);
+
+ Node* skip_call = _gvn.transform(new IfTrueNode(iff));
+ result_rgn->init_req(1, skip_call);
+
+ Node* in1_io = i_o();
+ Node* in1_mem = st_mem;
+ // These two phis are pre-filled with copies of the fast IO and Memory
+ Node* io_phi = PhiNode::make(result_rgn, in1_io, Type::ABIO);
+ Node* mem_phi = PhiNode::make(result_rgn, in1_mem, Type::MEMORY, TypePtr::BOTTOM);
+
+ Node* needs_call = _gvn.transform(new IfFalseNode(iff));
+ set_control(needs_call);
+
+ Node* recomp_bit = intcon(AOT_RECOMPILE_BIT);
+ Node* rbit = _gvn.transform( new AndINode(incr, recomp_bit) );
+ Node* chk2 = _gvn.transform( new CmpINode(rbit, intcon(0)) );
+ Node* tst2 = _gvn.transform( new BoolNode(chk2, BoolTest::ne) );
+ IfNode* iff2 = create_and_map_if(control(), tst2, PROB_FAIR, COUNT_UNKNOWN);
+
+ Node* skip_call2 = _gvn.transform(new IfTrueNode(iff2));
+ result_rgn->init_req(2, skip_call2);
+
+ Node* needs_call2 = _gvn.transform(new IfFalseNode(iff2));
+ set_control(needs_call2);
+
+ Node* new_val = _gvn.transform(new OrINode(incr, recomp_bit));
+ store_to_memory(control(), cnt_adr, new_val, T_INT, MemNode::unordered);
+
+ const TypePtr* m_type = TypeMetadataPtr::make(method());
+ Node* m = makecon(m_type);
+ Node* call = make_runtime_call(RC_NO_LEAF | RC_UNCOMMON,
+ OptoRuntime::compile_method_Type(),
+ OptoRuntime::compile_method_Java(),
+ "compile_method", TypePtr::BOTTOM, m);
+
+ // State before call
+ io_phi ->init_req(2, in1_io);
+ mem_phi->init_req(2, in1_mem);
+
+ // State after call
+ result_rgn->init_req(3, control());
+ io_phi ->init_req(3, i_o());
+ mem_phi->init_req(3, reset_memory());
+
+ set_all_memory( _gvn.transform(mem_phi) );
+ set_i_o( _gvn.transform(io_phi) );
+ set_control( _gvn.transform(result_rgn) );
+ }
+ }
+
+ #undef AOT_COUNT_INC
+ #undef AOT_RECOMPILE_BIT
+
+ #endif
+
//-----------------------------do_method_entry--------------------------------
// Emit any code needed in the pseudo-block before BCI zero.
// The main thing to do is lock the receiver of a synchronized method.
void Parse::do_method_entry() {
set_parse_bci(InvocationEntryBci); // Pseudo-BCP
if (C->env()->dtrace_method_probes()) {
make_dtrace_method_entry(method());
}
+ install_on_method_entry_runtime_upcalls(method());
+
#ifdef ASSERT
// Narrow receiver type when it is too broad for the method being parsed.
if (!method()->is_static()) {
ciInstanceKlass* callee_holder = method()->holder();
const Type* holder_type = TypeInstPtr::make(TypePtr::BotPTR, callee_holder, Type::trust_interfaces);
}
// Feed profiling data for parameters to the type system so it can
// propagate it as speculative types
record_profiled_parameters_for_speculation();
+
+ CDS_ONLY( count_aot_code_calls(); )
}
//------------------------------init_blocks------------------------------------
// Initialize our parser map to contain the types/monitors at method entry.
void Parse::init_blocks() {
do_one_bytecode();
if (failing()) return;
assert(!have_se || stopped() || failing() || (sp() - pre_bc_sp) == depth,
- "incorrect depth prediction: sp=%d, pre_bc_sp=%d, depth=%d", sp(), pre_bc_sp, depth);
+ "incorrect depth prediction: bc=%s bci=%d, sp=%d, pre_bc_sp=%d, depth=%d", Bytecodes::name(bc()), bci(), sp(), pre_bc_sp, depth);
do_exceptions();
NOT_PRODUCT( parse_histogram()->record_change(); );
set_control( _gvn.transform(result_rgn) );
}
// Add check to deoptimize once holder klass is fully initialized.
void Parse::clinit_deopt() {
+ if (method()->holder()->is_initialized()) {
+ return; // in case do_clinit_barriers() is true
+ }
assert(C->has_method(), "only for normal compilations");
assert(depth() == 1, "only for main compiled method");
assert(is_normal_parse(), "no barrier needed on osr entry");
assert(!method()->holder()->is_not_initialized(), "initialization should have been started");
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