Mercurial > hg > truffle
view src/share/vm/compiler/abstractCompiler.hpp @ 13370:3e67710a6d08
SchedulePhase: remove old memory aware scheudling
author | Bernhard Urban <bernhard.urban@jku.at> |
---|---|
date | Tue, 17 Dec 2013 21:39:01 +0100 |
parents | 096c224171c4 |
children | d8041d695d19 |
line wrap: on
line source
/* * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP #define SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP #include "ci/compilerInterface.hpp" typedef void (*initializer)(void); #ifdef GRAAL // Per-compiler statistics class CompilerStatistics VALUE_OBJ_CLASS_SPEC { friend class VMStructs; class Data VALUE_OBJ_CLASS_SPEC { friend class VMStructs; public: elapsedTimer _time; // time spent compiling int _bytes; // number of bytecodes compiled, including inlined bytecodes int _count; // number of compilations Data() : _bytes(0), _count(0) {} void update(elapsedTimer time, int bytes) { _time.add(time); _bytes += bytes; _count++; } }; public: Data _standard; // stats for non-OSR compilations Data _osr; // stats for OSR compilations int _nmethods_size; // int _nmethods_code_size; int bytes_per_second() { int bytes = _standard._bytes + _osr._bytes; if (bytes == 0) { return 0; } double seconds = _standard._time.seconds() + _osr._time.seconds(); return seconds == 0.0 ? 0 : (int) (bytes / seconds); } CompilerStatistics() : _nmethods_size(0), _nmethods_code_size(0) {} }; #endif class AbstractCompiler : public CHeapObj<mtCompiler> { private: volatile int _num_compiler_threads; protected: volatile int _compiler_state; // Used for tracking global state of compiler runtime initialization enum { uninitialized, initializing, initialized, failed, shut_down }; // This method returns true for the first compiler thread that reaches that methods. // This thread will initialize the compiler runtime. bool should_perform_init(); // The (closed set) of concrete compiler classes. Using an tag like this // avoids a confusing use of macros around the definition of the // 'is_<compiler type>' methods. enum Type { c1, c2, shark, graal }; private: Type _type; #ifdef GRAAL CompilerStatistics _stats; #endif public: AbstractCompiler(Type type) : _type(type), _compiler_state(uninitialized), _num_compiler_threads(0) {} // This function determines the compiler thread that will perform the // shutdown of the corresponding compiler runtime. bool should_perform_shutdown(); // Name of this compiler virtual const char* name() = 0; // Should a native wrapper be generated by the runtime. This method // does *not* answer the question "can this compiler generate code for // a native method". virtual bool supports_native() { return true; } virtual bool supports_osr () { return true; } virtual bool can_compile_method(methodHandle method) { return true; } bool is_c1 () { return _type == c1; } bool is_c2 () { return _type == c2; } bool is_shark() { return _type == shark; } bool is_graal() { return _type == graal; } // Customization virtual void initialize () = 0; void set_num_compiler_threads(int num) { _num_compiler_threads = num; } int num_compiler_threads() { return _num_compiler_threads; } // Get/set state of compiler objects bool is_initialized() { return _compiler_state == initialized; } bool is_failed () { return _compiler_state == failed;} void set_state (int state); void set_shut_down () { set_state(shut_down); } // Compilation entry point for methods virtual void compile_method(ciEnv* env, ciMethod* target, int entry_bci) { ShouldNotReachHere(); } // Print compilation timers and statistics virtual void print_timers() { ShouldNotReachHere(); } #ifdef GRAAL CompilerStatistics* stats() { return &_stats; } #endif }; #endif // SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP