jdk8-mips64-public/hotspot: src/share/vm/compiler/abstractCompiler.hpp@d2ede61b7a12

6976186: integrate Shark HotSpot changes
Summary: Shark is a JIT compiler for Zero that uses the LLVM compiler infrastructure.
Reviewed-by: kvn, twisti
Contributed-by: Gary Benson <gbenson@redhat.com>

     1 /*

     2  * Copyright (c) 1999, 2010, 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  */

    25 typedef void (*initializer)(void);

    27 class AbstractCompiler : public CHeapObj {

    28  private:

    29   bool _is_initialized; // Mark whether compiler object is initialized

    31  protected:

    32   // Used for tracking global state of compiler runtime initialization

    33   enum { uninitialized, initializing, initialized };

    35   // This method will call the initialization method "f" once (per compiler class/subclass)

    36   // and do so without holding any locks

    37   void initialize_runtimes(initializer f, volatile int* state);

    39  public:

    40   AbstractCompiler() : _is_initialized(false)    {}

    42   // Name of this compiler

    43   virtual const char* name() = 0;

    45   // Missing feature tests

    46   virtual bool supports_native()                 { return true; }

    47   virtual bool supports_osr   ()                 { return true; }

    48 #if defined(TIERED) || ( !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK))

    49   virtual bool is_c1   ()                        { return false; }

    50   virtual bool is_c2   ()                        { return false; }

    51   virtual bool is_shark()                        { return false; }

    52 #else

    53 #ifdef COMPILER1

    54   bool is_c1   ()                                { return true; }

    55   bool is_c2   ()                                { return false; }

    56   bool is_shark()                                { return false; }

    57 #endif // COMPILER1

    58 #ifdef COMPILER2

    59   bool is_c1   ()                                { return false; }

    60   bool is_c2   ()                                { return true; }

    61   bool is_shark()                                { return false; }

    62 #endif // COMPILER2

    63 #ifdef SHARK

    64   bool is_c1   ()                                { return false; }

    65   bool is_c2   ()                                { return false; }

    66   bool is_shark()                                { return true; }

    67 #endif // SHARK

    68 #endif // TIERED

    70   // Customization

    71   virtual bool needs_stubs            ()         = 0;

    73   void mark_initialized()                        { _is_initialized = true; }

    74   bool is_initialized()                          { return _is_initialized; }

    76   virtual void initialize()                      = 0;

    78   // Compilation entry point for methods

    79   virtual void compile_method(ciEnv* env,

    80                               ciMethod* target,

    81                               int entry_bci) {

    82     ShouldNotReachHere();

    83   }

    86   // Print compilation timers and statistics

    87   virtual void print_timers() {

    88     ShouldNotReachHere();

    89   }

    90 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/compiler/abstractCompiler.hpp@d2ede61b7a12

src/share/vm/compiler/abstractCompiler.hpp