--- /dev/null 2015-09-16 15:21:24.000000000 -0700 +++ new/src/share/vm/jvmci/jvmciCompiler.cpp 2015-09-16 15:21:24.000000000 -0700 @@ -0,0 +1,159 @@ +/* + * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +#include "precompiled.hpp" +#include "memory/oopFactory.hpp" +#include "oops/oop.inline.hpp" +#include "runtime/javaCalls.hpp" +#include "runtime/handles.hpp" +#include "jvmci/jvmciJavaClasses.hpp" +#include "jvmci/jvmciCompiler.hpp" +#include "jvmci/jvmciEnv.hpp" +#include "jvmci/jvmciRuntime.hpp" +#include "runtime/compilationPolicy.hpp" +#include "runtime/globals_extension.hpp" + +JVMCICompiler* JVMCICompiler::_instance = NULL; +elapsedTimer JVMCICompiler::_codeInstallTimer; + +JVMCICompiler::JVMCICompiler() : AbstractCompiler(jvmci) { + _bootstrapping = false; + _methodsCompiled = 0; + assert(_instance == NULL, "only one instance allowed"); + _instance = this; +} + +// Initialization +void JVMCICompiler::initialize() { + if (!UseCompiler || !EnableJVMCI || !UseJVMCICompiler || !should_perform_init()) { + return; + } + + set_state(initialized); + + // JVMCI is considered as application code so we need to + // stop the VM deferring compilation now. + CompilationPolicy::completed_vm_startup(); +} + +void JVMCICompiler::bootstrap() { +#ifndef PRODUCT + // We turn off CompileTheWorld so that compilation requests are not + // ignored during bootstrap or that JVMCI can be compiled by C1/C2. + FlagSetting ctwOff(CompileTheWorld, false); +#endif + + JavaThread* THREAD = JavaThread::current(); + _bootstrapping = true; + ResourceMark rm; + HandleMark hm; + if (PrintBootstrap) { + tty->print("Bootstrapping JVMCI"); + } + jlong start = os::javaTimeMillis(); + + Array* objectMethods = InstanceKlass::cast(SystemDictionary::Object_klass())->methods(); + // Initialize compile queue with a selected set of methods. + int len = objectMethods->length(); + for (int i = 0; i < len; i++) { + methodHandle mh = objectMethods->at(i); + if (!mh->is_native() && !mh->is_static() && !mh->is_initializer()) { + ResourceMark rm; + int hot_count = 10; // TODO: what's the appropriate value? + CompileBroker::compile_method(mh, InvocationEntryBci, CompLevel_full_optimization, mh, hot_count, "bootstrap", THREAD); + } + } + + int qsize; + bool first_round = true; + int z = 0; + do { + // Loop until there is something in the queue. + do { + os::sleep(THREAD, 100, true); + qsize = CompileBroker::queue_size(CompLevel_full_optimization); + } while (first_round && qsize == 0); + first_round = false; + if (PrintBootstrap) { + while (z < (_methodsCompiled / 100)) { + ++z; + tty->print_raw("."); + } + } + } while (qsize != 0); + + if (PrintBootstrap) { + tty->print_cr(" in " JLONG_FORMAT " ms (compiled %d methods)", os::javaTimeMillis() - start, _methodsCompiled); + } + _bootstrapping = false; +} + +void JVMCICompiler::compile_method(methodHandle method, int entry_bci, JVMCIEnv* env) { + JVMCI_EXCEPTION_CONTEXT + + bool is_osr = entry_bci != InvocationEntryBci; + if (_bootstrapping && is_osr) { + // no OSR compilations during bootstrap - the compiler is just too slow at this point, + // and we know that there are no endless loops + return; + } + + HandleMark hm; + ResourceMark rm; + Handle receiver = JVMCIRuntime::get_HotSpotJVMCIRuntime(CHECK_ABORT); + + JavaValue method_result(T_OBJECT); + { + JavaCallArguments args; + args.push_long((jlong) (address) method()); + JavaCalls::call_static(&method_result, SystemDictionary::HotSpotResolvedJavaMethodImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::method_fromMetaspace_signature(), &args, CHECK_ABORT); + } + + JavaValue result(T_VOID); + JavaCallArguments args; + args.push_oop(receiver); + args.push_oop((oop)method_result.get_jobject()); + args.push_int(entry_bci); + args.push_long((jlong) (address) env); + args.push_int(env->task()->compile_id()); + JavaCalls::call_special(&result, receiver->klass(), vmSymbols::compileMethod_name(), vmSymbols::compileMethod_signature(), &args, CHECK_ABORT); + + _methodsCompiled++; +} + + +// Compilation entry point for methods +void JVMCICompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci) { + ShouldNotReachHere(); +} + +// Print compilation timers and statistics +void JVMCICompiler::print_timers() { + print_compilation_timers(); +} + +// Print compilation timers and statistics +void JVMCICompiler::print_compilation_timers() { + TRACE_jvmci_1("JVMCICompiler::print_timers"); + tty->print_cr(" JVMCI code install time: %6.3f s", _codeInstallTimer.seconds()); +}