jdk8-mips64-public/hotspot: src/share/vm/c1/c1

6958292: C1: Enable parallel compilation
Summary: Enable parallel compilation in C1
Reviewed-by: never, kvn

     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 #include "incls/_precompiled.incl"

    26 #include "incls/_c1_Compiler.cpp.incl"

    28 volatile int Compiler::_runtimes = uninitialized;

    30 Compiler::Compiler() {

    31 }

    34 Compiler::~Compiler() {

    35   Unimplemented();

    36 }

    39 void Compiler::initialize_all() {

    40   BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();

    41   Arena* arena = new Arena();

    42   Runtime1::initialize(buffer_blob);

    43   FrameMap::initialize();

    44   // initialize data structures

    45   ValueType::initialize(arena);

    46   // Instruction::initialize();

    47   // BlockBegin::initialize();

    48   GraphBuilder::initialize();

    49   // note: to use more than one instance of LinearScan at a time this function call has to

    50   //       be moved somewhere outside of this constructor:

    51   Interval::initialize(arena);

    52 }

    55 void Compiler::initialize() {

    56   if (_runtimes != initialized) {

    57     initialize_runtimes( initialize_all, &_runtimes);

    58   }

    59   mark_initialized();

    60 }

    63 BufferBlob* Compiler::build_buffer_blob() {

    64   // setup CodeBuffer.  Preallocate a BufferBlob of size

    65   // NMethodSizeLimit plus some extra space for constants.

    66   int code_buffer_size = Compilation::desired_max_code_buffer_size() +

    67     Compilation::desired_max_constant_size();

    68   BufferBlob* blob = BufferBlob::create("Compiler1 temporary CodeBuffer",

    69                                         code_buffer_size);

    70   guarantee(blob != NULL, "must create initial code buffer");

    71   return blob;

    72 }

    75 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci) {

    76   // Allocate buffer blob once at startup since allocation for each

    77   // compilation seems to be too expensive (at least on Intel win32).

    78   BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();

    79   if (buffer_blob == NULL) {

    80     buffer_blob = build_buffer_blob();

    81     CompilerThread::current()->set_buffer_blob(buffer_blob);

    82   }

    84   if (!is_initialized()) {

    85     initialize();

    86   }

    87   // invoke compilation

    88   {

    89     // We are nested here because we need for the destructor

    90     // of Compilation to occur before we release the any

    91     // competing compiler thread

    92     ResourceMark rm;

    93     Compilation c(this, env, method, entry_bci, buffer_blob);

    94   }

    95 }

    98 void Compiler::print_timers() {

    99   Compilation::print_timers();

   100 }

src/share/vm/c1/c1_Compiler.cpp@b812ff5abc73