1 /*

     2  * Copyright (c) 2011, 2017, 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_VM_JVMCI_JVMCI_COMPILER_HPP

    25 #define SHARE_VM_JVMCI_JVMCI_COMPILER_HPP

    26 

    27 #include "compiler/abstractCompiler.hpp"

    28 #include "jvmci/jvmciEnv.hpp"

    29 #include "utilities/exceptions.hpp"

    30 

    31 class JVMCICompiler : public AbstractCompiler {

    32 private:

    33   bool _bootstrapping;

    34 

    35   /**

    36    * True if we have seen a bootstrap compilation request.

    37    */

    38   volatile bool _bootstrap_compilation_request_handled;

    39 

    40   /**

    41    * Number of methods successfully compiled by a call to

    42    * JVMCICompiler::compile_method().

    43    */

    44   volatile int _methods_compiled;

    45 

    46   static JVMCICompiler* _instance;

    47 

    48   static elapsedTimer _codeInstallTimer;

    49 

    50   /**

    51    * Exits the VM due to an unexpected exception.

    52    */

    53   static void exit_on_pending_exception(oop exception, const char* message);

    54 

    55 public:

    56   JVMCICompiler();

    57 

    58   static JVMCICompiler* instance(TRAPS) {

    59     if (!EnableJVMCI) {

    60       THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), "JVMCI is not enabled")

    61     }

    62     return _instance;

    63   }

    64 

    65   virtual const char* name() { return "JVMCI"; }

    66 

    67   virtual bool supports_native()                 { return true; }

    68   virtual bool supports_osr   ()                 { return true; }

    69 

    70   bool is_jvmci()                                { return true; }

    71   bool is_c1   ()                                { return false; }

    72   bool is_c2   ()                                { return false; }

    73 

    74   bool needs_stubs            () { return false; }

    75 

    76   // Initialization

    77   virtual void initialize();

    78 

    79   /**

    80    * Initialize the compile queue with the methods in java.lang.Object and

    81    * then wait until the queue is empty.

    82    */

    83   void bootstrap(TRAPS);

    84 

    85   bool is_bootstrapping() const { return _bootstrapping; }

    86 

    87   // Compilation entry point for methods

    88   virtual void compile_method(ciEnv* env, ciMethod* target, int entry_bci, DirectiveSet* directive);

    89 

    90   void compile_method(const methodHandle& target, int entry_bci, JVMCIEnv* env);

    91 

    92   virtual bool is_trivial(Method* method);

    93 

    94   // Print compilation timers and statistics

    95   virtual void print_timers();

    96 

    97   /**

    98    * Gets the number of methods that have been successfully compiled by

    99    * a call to JVMCICompiler::compile_method().

   100    */

   101   int methods_compiled() { return _methods_compiled; }

   102 

   103   // Print compilation timers and statistics

   104   static void print_compilation_timers();

   105 

   106   static elapsedTimer* codeInstallTimer() { return &_codeInstallTimer; }

   107 };

   108 

   109 #endif // SHARE_VM_JVMCI_JVMCI_COMPILER_HPP