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() &&
71 !mh->is_static() &&
72 !mh->is_object_constructor() &&
73 !mh->is_class_initializer()) {
74 ResourceMark rm;
75 int hot_count = 10; // TODO: what's the appropriate value?
76 CompileBroker::compile_method(mh, InvocationEntryBci, CompLevel_full_optimization, mh, hot_count, CompileTask::Reason_Bootstrap, THREAD);
77 }
78 }
79
80 int qsize;
81 bool first_round = true;
82 int z = 0;
83 do {
84 // Loop until there is something in the queue.
85 do {
86 os::sleep(THREAD, 100, true);
87 qsize = CompileBroker::queue_size(CompLevel_full_optimization);
88 } while (!_bootstrap_compilation_request_handled && first_round && qsize == 0);
89 first_round = false;
90 if (PrintBootstrap) {
91 while (z < (_methods_compiled / 100)) {
92 ++z;
93 tty->print_raw(".");
94 }
95 }
96 } while (qsize != 0);
97
98 if (PrintBootstrap) {
99 tty->print_cr(" in " JLONG_FORMAT " ms (compiled %d methods)", os::javaTimeMillis() - start, _methods_compiled);
100 }
101 _bootstrapping = false;
102 JVMCI::compiler_runtime()->bootstrap_finished(CHECK);
103 }
104
105 bool JVMCICompiler::force_comp_at_level_simple(Method *method) {
106 if (UseJVMCINativeLibrary) {
107 // This mechanism exists to force compilation of a JVMCI compiler by C1
108 // to reduces the compilation time spent on the JVMCI compiler itself. In
109 // +UseJVMCINativeLibrary mode, the JVMCI compiler is AOT compiled.
110 return false;
111 }
112
113 if (_bootstrapping) {
114 // When bootstrapping, the JVMCI compiler can compile its own methods.
115 return false;
116 }
117
118 JVMCIRuntime* runtime = JVMCI::compiler_runtime();
119 if (runtime != NULL && runtime->is_HotSpotJVMCIRuntime_initialized()) {
120 JavaThread* thread = JavaThread::current();
121 HandleMark hm(thread);
122 THREAD_JVMCIENV(thread);
123 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(JVMCIENV);
124 objArrayHandle excludeModules(thread, HotSpotJVMCI::HotSpotJVMCIRuntime::excludeFromJVMCICompilation(JVMCIENV, HotSpotJVMCI::resolve(receiver)));
125 if (excludeModules.not_null()) {
126 ModuleEntry* moduleEntry = method->method_holder()->module();
127 for (int i = 0; i < excludeModules->length(); i++) {
128 if (oopDesc::equals(excludeModules->obj_at(i), moduleEntry->module())) {
129 return true;
130 }
131 }
132 }
133 }
134 return false;
135 }
136
137 // Compilation entry point for methods
138 void JVMCICompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci, DirectiveSet* directive) {
139 ShouldNotReachHere();
140 }
141
142 // Print compilation timers and statistics
143 void JVMCICompiler::print_timers() {
144 print_compilation_timers();
145 }
146
147 // Print compilation timers and statistics
148 void JVMCICompiler::print_compilation_timers() {
149 TRACE_jvmci_1("JVMCICompiler::print_timers");
150 tty->print_cr(" JVMCI code install time: %6.3f s", _codeInstallTimer.seconds());
151 }