src/share/vm/c1/c1_Compiler.hpp

Tue, 29 Dec 2009 19:08:54 +0100

author
roland
date
Tue, 29 Dec 2009 19:08:54 +0100
changeset 2174
f02a8bbe6ed4
parent 2138
d5d065957597
child 2314
f95d63e2154a
permissions
-rw-r--r--

6986046: C1 valuestack cleanup
Summary: fixes an historical oddity in C1 with inlining where all of the expression stacks are kept in the topmost ValueStack instead of being in their respective ValueStacks.
Reviewed-by: never
Contributed-by: Christian Wimmer <cwimmer@uci.edu>

     1 /*
     2  * Copyright (c) 1999, 2007, 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 // There is one instance of the Compiler per CompilerThread.
    27 class Compiler: public AbstractCompiler {
    29  private:
    31  // Tracks whether runtime has been initialized
    32  static volatile int _runtimes;
    34  public:
    35   // Creation
    36   Compiler();
    37   ~Compiler();
    39   // Name of this compiler
    40   virtual const char* name()                     { return "C1"; }
    42   virtual bool is_c1()                           { return true; };
    44   BufferBlob* build_buffer_blob();
    46   // Missing feature tests
    47   virtual bool supports_native()                 { return true; }
    48   virtual bool supports_osr   ()                 { return true; }
    50   // Customization
    51   virtual bool needs_adapters         ()         { return false; }
    52   virtual bool needs_stubs            ()         { return false; }
    54   // Initialization
    55   virtual void initialize();
    56   static  void initialize_all();
    58   // Compilation entry point for methods
    59   virtual void compile_method(ciEnv* env, ciMethod* target, int entry_bci);
    61   // Print compilation timers and statistics
    62   virtual void print_timers();
    63 };

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