1 /* 2 * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 #include "precompiled.hpp" 25 #include "compiler/compileBroker.hpp" 26 #include "classfile/moduleEntry.hpp" 27 #include "jvmci/jvmciEnv.hpp" 28 #include "jvmci/jvmciRuntime.hpp" 29 #include "oops/objArrayOop.inline.hpp" 30 #include "runtime/handles.inline.hpp" 31 32 JVMCICompiler* JVMCICompiler::_instance = NULL; 33 elapsedTimer JVMCICompiler::_codeInstallTimer; 34 35 JVMCICompiler::JVMCICompiler() : AbstractCompiler(compiler_jvmci) { 36 _bootstrapping = false; 37 _bootstrap_compilation_request_handled = false; 38 _methods_compiled = 0; 39 assert(_instance == NULL, "only one instance allowed"); 40 _instance = this; 41 } 42 43 // Initialization 44 void JVMCICompiler::initialize() { 45 if (!UseCompiler || !EnableJVMCI || !UseJVMCICompiler || !should_perform_init()) { 46 return; 47 } 48 49 set_state(initialized); 50 } 51 52 void JVMCICompiler::bootstrap(TRAPS) { 53 if (Arguments::mode() == Arguments::_int) { 54 // Nothing to do in -Xint mode 55 return; 56 } 57 _bootstrapping = true; 58 ResourceMark rm; 59 HandleMark hm; 60 if (PrintBootstrap) { 61 tty->print("Bootstrapping JVMCI"); 62 } 63 jlong start = os::javaTimeMillis(); 64 65 Array<Method*>* objectMethods = SystemDictionary::Object_klass()->methods(); 66 // Initialize compile queue with a selected set of methods. 67 int len = objectMethods->length(); 68 for (int i = 0; i < len; i++) { 69 methodHandle mh = objectMethods->at(i); 70 if (!mh->is_native() && !mh->is_static() && !mh->is_initializer()) { 71 ResourceMark rm; 72 int hot_count = 10; // TODO: what's the appropriate value? 73 CompileBroker::compile_method(mh, InvocationEntryBci, CompLevel_full_optimization, mh, hot_count, CompileTask::Reason_Bootstrap, THREAD); 74 } 75 } 76 77 int qsize; 78 bool first_round = true; 79 int z = 0; 80 do { 81 // Loop until there is something in the queue. 82 do { 83 os::sleep(THREAD, 100, true); 84 qsize = CompileBroker::queue_size(CompLevel_full_optimization); 85 } while (!_bootstrap_compilation_request_handled && first_round && qsize == 0); 86 first_round = false; 87 if (PrintBootstrap) { 88 while (z < (_methods_compiled / 100)) { 89 ++z; 90 tty->print_raw("."); 91 } 92 } 93 } while (qsize != 0); 94 95 if (PrintBootstrap) { 96 tty->print_cr(" in " JLONG_FORMAT " ms (compiled %d methods)", os::javaTimeMillis() - start, _methods_compiled); 97 } 98 _bootstrapping = false; 99 JVMCI::compiler_runtime()->bootstrap_finished(CHECK); 100 } 101 102 bool JVMCICompiler::force_comp_at_level_simple(Method *method) { 103 if (UseJVMCINativeLibrary) { 104 // This mechanism exists to force compilation of a JVMCI compiler by C1 105 // to reduces the compilation time spent on the JVMCI compiler itself. In 106 // +UseJVMCINativeLibrary mode, the JVMCI compiler is AOT compiled. 107 return false; 108 } 109 110 if (_bootstrapping) { 111 // When bootstrapping, the JVMCI compiler can compile its own methods. 112 return false; 113 } 114 115 JVMCIRuntime* runtime = JVMCI::compiler_runtime(); 116 if (runtime != NULL && runtime->is_HotSpotJVMCIRuntime_initialized()) { 117 JavaThread* thread = JavaThread::current(); 118 HandleMark hm(thread); 119 THREAD_JVMCIENV(thread); 120 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(JVMCIENV); 121 objArrayHandle excludeModules(thread, HotSpotJVMCI::HotSpotJVMCIRuntime::excludeFromJVMCICompilation(JVMCIENV, HotSpotJVMCI::resolve(receiver))); 122 if (excludeModules.not_null()) { 123 ModuleEntry* moduleEntry = method->method_holder()->module(); 124 for (int i = 0; i < excludeModules->length(); i++) { 125 if (oopDesc::equals(excludeModules->obj_at(i), moduleEntry->module())) { 126 return true; 127 } 128 } 129 } 130 } 131 return false; 132 } 133 134 // Compilation entry point for methods 135 void JVMCICompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci, DirectiveSet* directive) { 136 ShouldNotReachHere(); 137 } 138 139 // Print compilation timers and statistics 140 void JVMCICompiler::print_timers() { 141 print_compilation_timers(); 142 } 143 144 // Print compilation timers and statistics 145 void JVMCICompiler::print_compilation_timers() { 146 TRACE_jvmci_1("JVMCICompiler::print_timers"); 147 tty->print_cr(" JVMCI code install time: %6.3f s", _codeInstallTimer.seconds()); 148 }