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

 /*

  * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

  *

  */

 #include "precompiled.hpp"

 #include "c1/c1_Compilation.hpp"

 #include "c1/c1_Compiler.hpp"

 #include "c1/c1_FrameMap.hpp"

 #include "c1/c1_GraphBuilder.hpp"

 #include "c1/c1_LinearScan.hpp"

 #include "c1/c1_MacroAssembler.hpp"

 #include "c1/c1_Runtime1.hpp"

 #include "c1/c1_ValueType.hpp"

 #include "compiler/compileBroker.hpp"

 #include "compiler/compilerOracle.hpp"

 #include "interpreter/linkResolver.hpp"

 #include "memory/allocation.hpp"

 #include "memory/allocation.inline.hpp"

 #include "memory/resourceArea.hpp"

 #include "prims/nativeLookup.hpp"

 #include "runtime/arguments.hpp"

 #include "runtime/interfaceSupport.hpp"

 #include "runtime/sharedRuntime.hpp"

 Compiler::Compiler () {}

 void Compiler::init_c1_runtime() {

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

   Arena* arena = new (mtCompiler) Arena(mtCompiler);

   Runtime1::initialize(buffer_blob);

   FrameMap::initialize();

   // initialize data structures

   ValueType::initialize(arena);

   GraphBuilder::initialize();

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

   //       be moved somewhere outside of this constructor:

   Interval::initialize(arena);

 }

 void Compiler::initialize() {

   // Buffer blob must be allocated per C1 compiler thread at startup

   BufferBlob* buffer_blob = init_buffer_blob();

   if (should_perform_init()) {

     if (buffer_blob == NULL) {

       // When we come here we are in state 'initializing'; entire C1 compilation

       // can be shut down.

       set_state(failed);

     } else {

       init_c1_runtime();

       set_state(initialized);

     }

   }

 }

 BufferBlob* Compiler::init_buffer_blob() {

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

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

   assert (CompilerThread::current()->get_buffer_blob() == NULL, "Should initialize only once");

   // setup CodeBuffer.  Preallocate a BufferBlob of size

   // NMethodSizeLimit plus some extra space for constants.

   int code_buffer_size = Compilation::desired_max_code_buffer_size() +

     Compilation::desired_max_constant_size();

   BufferBlob* buffer_blob = BufferBlob::create("C1 temporary CodeBuffer", code_buffer_size);

   if (buffer_blob != NULL) {

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

   }

   return buffer_blob;

 }

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

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

   assert(buffer_blob != NULL, "Must exist");

   // invoke compilation

   {

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

     // of Compilation to occur before we release the any

     // competing compiler thread

     ResourceMark rm;

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

   }

 }

 void Compiler::print_timers() {

   Compilation::print_timers();

 }