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#ifndef SHARE_JVMCI_JVMCICOMPILER_HPP
25#define SHARE_JVMCI_JVMCICOMPILER_HPP
26
27#include "compiler/abstractCompiler.hpp"
28
29class JVMCICompiler : public AbstractCompiler {
30private:
31 bool _bootstrapping;
32
33 /**
34 * True if we have seen a bootstrap compilation request.
35 */
36 volatile bool _bootstrap_compilation_request_handled;
37
38 /**
39 * Number of methods successfully compiled by a call to
40 * JVMCICompiler::compile_method().
41 */
42 volatile int _methods_compiled;
43
44 static JVMCICompiler* _instance;
45
46 static elapsedTimer _codeInstallTimer;
47
48 /**
49 * Exits the VM due to an unexpected exception.
50 */
51 static void exit_on_pending_exception(oop exception, const char* message);
52
53public:
54 JVMCICompiler();
55
56 static JVMCICompiler* instance(bool require_non_null, TRAPS) {
57 if (!EnableJVMCI) {
58 THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), "JVMCI is not enabled")
59 }
60 if (_instance == NULL && require_non_null) {
61 THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), "The JVMCI compiler instance has not been created");
62 }
63 return _instance;
64 }
65
66 virtual const char* name() { return UseJVMCINativeLibrary ? "JVMCI-native" : "JVMCI"; }
67
68 virtual bool supports_native() { return true; }
69 virtual bool supports_osr () { return true; }
70
71 bool is_jvmci() { return true; }
72 bool is_c1 () { return false; }
73 bool is_c2 () { return false; }
74
75 bool needs_stubs () { return false; }
76
77 // Initialization
78 virtual void initialize();
79
80 /**
81 * Initialize the compile queue with the methods in java.lang.Object and
82 * then wait until the queue is empty.
83 */
84 void bootstrap(TRAPS);
85
86 // Should force compilation of method at CompLevel_simple?
87 bool force_comp_at_level_simple(Method* method);
88
89 bool is_bootstrapping() const { return _bootstrapping; }
90
91 void set_bootstrap_compilation_request_handled() {
92 _instance->_bootstrap_compilation_request_handled = true;
93 }
94
95 // Compilation entry point for methods
96 virtual void compile_method(ciEnv* env, ciMethod* target, int entry_bci, DirectiveSet* directive);
97
98 // Print compilation timers and statistics
99 virtual void print_timers();
100
101 /**
102 * Gets the number of methods that have been successfully compiled by
103 * a call to JVMCICompiler::compile_method().
104 */
105 int methods_compiled() { return _methods_compiled; }
106
107 void inc_methods_compiled() {
108 Atomic::inc(&_methods_compiled);
109 }
110
111 // Print compilation timers and statistics
112 static void print_compilation_timers();
113
114 static elapsedTimer* codeInstallTimer() { return &_codeInstallTimer; }
115};
116
117#endif // SHARE_JVMCI_JVMCICOMPILER_HPP
118