duke@435: /*
mikael@4153:  * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #ifndef SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP
stefank@2314: #define SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP
stefank@2314: 
stefank@2314: #include "ci/compilerInterface.hpp"
stefank@2314: 
zgu@3900: class AbstractCompiler : public CHeapObj<mtCompiler> {
duke@435:  private:
anoll@5919:   volatile int _num_compiler_threads;
duke@435: 
duke@435:  protected:
anoll@5919:   volatile int _compiler_state;
duke@435:   // Used for tracking global state of compiler runtime initialization
anoll@5919:   enum { uninitialized, initializing, initialized, failed, shut_down };
duke@435: 
anoll@5919:   // This method returns true for the first compiler thread that reaches that methods.
anoll@5919:   // This thread will initialize the compiler runtime.
anoll@5919:   bool should_perform_init();
duke@435: 
duke@435:  public:
anoll@5919:   AbstractCompiler() : _compiler_state(uninitialized), _num_compiler_threads(0) {}
anoll@5919: 
anoll@5919:   // This function determines the compiler thread that will perform the
anoll@5919:   // shutdown of the corresponding compiler runtime.
anoll@5919:   bool should_perform_shutdown();
duke@435: 
duke@435:   // Name of this compiler
duke@435:   virtual const char* name() = 0;
duke@435: 
duke@435:   // Missing feature tests
duke@435:   virtual bool supports_native()                 { return true; }
duke@435:   virtual bool supports_osr   ()                 { return true; }
twisti@4444:   virtual bool can_compile_method(methodHandle method)  { return true; }
twisti@2047: #if defined(TIERED) || ( !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK))
duke@435:   virtual bool is_c1   ()                        { return false; }
duke@435:   virtual bool is_c2   ()                        { return false; }
twisti@2047:   virtual bool is_shark()                        { return false; }
duke@435: #else
duke@435: #ifdef COMPILER1
duke@435:   bool is_c1   ()                                { return true; }
duke@435:   bool is_c2   ()                                { return false; }
twisti@2047:   bool is_shark()                                { return false; }
duke@435: #endif // COMPILER1
duke@435: #ifdef COMPILER2
duke@435:   bool is_c1   ()                                { return false; }
duke@435:   bool is_c2   ()                                { return true; }
twisti@2047:   bool is_shark()                                { return false; }
duke@435: #endif // COMPILER2
twisti@2047: #ifdef SHARK
twisti@2047:   bool is_c1   ()                                { return false; }
twisti@2047:   bool is_c2   ()                                { return false; }
twisti@2047:   bool is_shark()                                { return true; }
twisti@2047: #endif // SHARK
duke@435: #endif // TIERED
duke@435: 
duke@435:   // Customization
anoll@5919:   virtual void initialize () = 0;
duke@435: 
anoll@5919:   void set_num_compiler_threads(int num) { _num_compiler_threads = num;  }
anoll@5919:   int num_compiler_threads()             { return _num_compiler_threads; }
duke@435: 
anoll@5919:   // Get/set state of compiler objects
anoll@5919:   bool is_initialized()           { return _compiler_state == initialized; }
anoll@5919:   bool is_failed     ()           { return _compiler_state == failed;}
anoll@5919:   void set_state     (int state);
anoll@5919:   void set_shut_down ()           { set_state(shut_down); }
duke@435:   // Compilation entry point for methods
anoll@5919:   virtual void compile_method(ciEnv* env, ciMethod* target, int entry_bci) {
duke@435:     ShouldNotReachHere();
duke@435:   }
duke@435: 
duke@435: 
duke@435:   // Print compilation timers and statistics
duke@435:   virtual void print_timers() {
duke@435:     ShouldNotReachHere();
duke@435:   }
duke@435: };
stefank@2314: 
stefank@2314: #endif // SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP