src/share/vm/opto/c2compiler.hpp

Wed, 16 Nov 2011 09:13:57 -0800

author
kvn
date
Wed, 16 Nov 2011 09:13:57 -0800
changeset 3311
1bd45abaa507
parent 2314
f95d63e2154a
child 5919
469216acdb28
permissions
-rw-r--r--

6890673: Eliminate allocations immediately after EA
Summary: Try to eliminate allocations and related locks immediately after escape analysis.
Reviewed-by: never

     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 #ifndef SHARE_VM_OPTO_C2COMPILER_HPP
    26 #define SHARE_VM_OPTO_C2COMPILER_HPP
    28 #include "compiler/abstractCompiler.hpp"
    30 class C2Compiler : public AbstractCompiler {
    31 private:
    33   static void initialize_runtime();
    35 public:
    36   // Name
    37   const char *name() { return "C2"; }
    39   static volatile int _runtimes;
    41 #ifdef TIERED
    42   virtual bool is_c2() { return true; };
    43 #endif // TIERED
    45   // Customization
    46   bool needs_adapters         () { return true; }
    47   bool needs_stubs            () { return true; }
    49   void initialize();
    51   // Compilation entry point for methods
    52   void compile_method(ciEnv* env,
    53                       ciMethod* target,
    54                       int entry_bci);
    56   // sentinel value used to trigger backtracking in compile_method().
    57   static const char* retry_no_subsuming_loads();
    58   static const char* retry_no_escape_analysis();
    60   // Print compilation timers and statistics
    61   void print_timers();
    62 };
    64 #endif // SHARE_VM_OPTO_C2COMPILER_HPP

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