124 lines
4.2 KiB
C++
124 lines
4.2 KiB
C++
/*
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* Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#ifndef SHARE_JVMCI_JVMCICOMPILER_HPP
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#define SHARE_JVMCI_JVMCICOMPILER_HPP
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#include "compiler/abstractCompiler.hpp"
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#include "runtime/atomic.hpp"
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class JVMCICompiler : public AbstractCompiler {
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private:
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bool _bootstrapping;
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/**
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* True if we have seen a bootstrap compilation request.
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*/
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volatile bool _bootstrap_compilation_request_handled;
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/**
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* Number of methods successfully compiled by a call to
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* JVMCICompiler::compile_method().
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*/
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volatile int _methods_compiled;
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// Incremented periodically by JVMCI compiler threads
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// to indicate JVMCI compilation activity.
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volatile int _global_compilation_ticks;
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static JVMCICompiler* _instance;
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static elapsedTimer _codeInstallTimer;
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/**
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* Exits the VM due to an unexpected exception.
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*/
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static void exit_on_pending_exception(oop exception, const char* message);
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public:
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JVMCICompiler();
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static JVMCICompiler* instance(bool require_non_null, TRAPS) {
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if (!EnableJVMCI) {
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THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), "JVMCI is not enabled")
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}
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if (_instance == NULL && require_non_null) {
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THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), "The JVMCI compiler instance has not been created");
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}
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return _instance;
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}
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virtual const char* name() { return UseJVMCINativeLibrary ? "JVMCI-native" : "JVMCI"; }
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virtual bool supports_native() { return true; }
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virtual bool supports_osr () { return true; }
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bool is_jvmci() { return true; }
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bool is_c1 () { return false; }
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bool is_c2 () { return false; }
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bool needs_stubs () { return false; }
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// Initialization
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virtual void initialize();
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/**
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* Initialize the compile queue with the methods in java.lang.Object and
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* then wait until the queue is empty.
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*/
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void bootstrap(TRAPS);
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// Should force compilation of method at CompLevel_simple?
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bool force_comp_at_level_simple(const methodHandle& method);
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bool is_bootstrapping() const { return _bootstrapping; }
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void set_bootstrap_compilation_request_handled() {
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_instance->_bootstrap_compilation_request_handled = true;
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}
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// Compilation entry point for methods
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virtual void compile_method(ciEnv* env, ciMethod* target, int entry_bci, bool install_code, DirectiveSet* directive);
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// Print compilation timers and statistics
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virtual void print_timers();
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// Gets the number of methods that have been successfully compiled by
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// a call to JVMCICompiler::compile_method().
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int methods_compiled() { return _methods_compiled; }
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void inc_methods_compiled();
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// Gets a value indicating JVMCI compilation activity on any thread.
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// If successive calls to this method return a different value, then
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// some degree of JVMCI compilation occurred between the calls.
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int global_compilation_ticks() const { return _global_compilation_ticks; }
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void inc_global_compilation_ticks();
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// Print compilation timers and statistics
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static void print_compilation_timers();
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static elapsedTimer* codeInstallTimer() { return &_codeInstallTimer; }
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};
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#endif // SHARE_JVMCI_JVMCICOMPILER_HPP
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