1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/compiler/abstractCompiler.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,102 @@
1.4 +/*
1.5 + * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP
1.29 +#define SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP
1.30 +
1.31 +#include "ci/compilerInterface.hpp"
1.32 +
1.33 +class AbstractCompiler : public CHeapObj<mtCompiler> {
1.34 + private:
1.35 + volatile int _num_compiler_threads;
1.36 +
1.37 + protected:
1.38 + volatile int _compiler_state;
1.39 + // Used for tracking global state of compiler runtime initialization
1.40 + enum { uninitialized, initializing, initialized, failed, shut_down };
1.41 +
1.42 + // This method returns true for the first compiler thread that reaches that methods.
1.43 + // This thread will initialize the compiler runtime.
1.44 + bool should_perform_init();
1.45 +
1.46 + public:
1.47 + AbstractCompiler() : _compiler_state(uninitialized), _num_compiler_threads(0) {}
1.48 +
1.49 + // This function determines the compiler thread that will perform the
1.50 + // shutdown of the corresponding compiler runtime.
1.51 + bool should_perform_shutdown();
1.52 +
1.53 + // Name of this compiler
1.54 + virtual const char* name() = 0;
1.55 +
1.56 + // Missing feature tests
1.57 + virtual bool supports_native() { return true; }
1.58 + virtual bool supports_osr () { return true; }
1.59 + virtual bool can_compile_method(methodHandle method) { return true; }
1.60 +#if defined(TIERED) || ( !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK))
1.61 + virtual bool is_c1 () { return false; }
1.62 + virtual bool is_c2 () { return false; }
1.63 + virtual bool is_shark() { return false; }
1.64 +#else
1.65 +#ifdef COMPILER1
1.66 + bool is_c1 () { return true; }
1.67 + bool is_c2 () { return false; }
1.68 + bool is_shark() { return false; }
1.69 +#endif // COMPILER1
1.70 +#ifdef COMPILER2
1.71 + bool is_c1 () { return false; }
1.72 + bool is_c2 () { return true; }
1.73 + bool is_shark() { return false; }
1.74 +#endif // COMPILER2
1.75 +#ifdef SHARK
1.76 + bool is_c1 () { return false; }
1.77 + bool is_c2 () { return false; }
1.78 + bool is_shark() { return true; }
1.79 +#endif // SHARK
1.80 +#endif // TIERED
1.81 +
1.82 + // Customization
1.83 + virtual void initialize () = 0;
1.84 +
1.85 + void set_num_compiler_threads(int num) { _num_compiler_threads = num; }
1.86 + int num_compiler_threads() { return _num_compiler_threads; }
1.87 +
1.88 + // Get/set state of compiler objects
1.89 + bool is_initialized() { return _compiler_state == initialized; }
1.90 + bool is_failed () { return _compiler_state == failed;}
1.91 + void set_state (int state);
1.92 + void set_shut_down () { set_state(shut_down); }
1.93 + // Compilation entry point for methods
1.94 + virtual void compile_method(ciEnv* env, ciMethod* target, int entry_bci) {
1.95 + ShouldNotReachHere();
1.96 + }
1.97 +
1.98 +
1.99 + // Print compilation timers and statistics
1.100 + virtual void print_timers() {
1.101 + ShouldNotReachHere();
1.102 + }
1.103 +};
1.104 +
1.105 +#endif // SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP
