c1_Compiler.cpp revision 3718:b9a9ed0f8eeb 
1/*
2 * Copyright (c) 1999, 2012, 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 */
24
25#include "precompiled.hpp"
26#include "c1/c1_Compilation.hpp"
27#include "c1/c1_Compiler.hpp"
28#include "c1/c1_FrameMap.hpp"
29#include "c1/c1_GraphBuilder.hpp"
30#include "c1/c1_LinearScan.hpp"
31#include "c1/c1_MacroAssembler.hpp"
32#include "c1/c1_Runtime1.hpp"
33#include "c1/c1_ValueType.hpp"
34#include "compiler/compileBroker.hpp"
35#include "compiler/compilerOracle.hpp"
36#include "interpreter/linkResolver.hpp"
37#include "memory/allocation.hpp"
38#include "memory/allocation.inline.hpp"
39#include "memory/resourceArea.hpp"
40#include "prims/nativeLookup.hpp"
41#include "runtime/arguments.hpp"
42#include "runtime/interfaceSupport.hpp"
43#include "runtime/sharedRuntime.hpp"
44
45volatile int Compiler::_runtimes = uninitialized;
46
47Compiler::Compiler() {
48}
49
50
51Compiler::~Compiler() {
52  Unimplemented();
53}
54
55
56void Compiler::initialize_all() {
57  BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
58  Arena* arena = new (mtCompiler) Arena();
59  Runtime1::initialize(buffer_blob);
60  FrameMap::initialize();
61  // initialize data structures
62  ValueType::initialize(arena);
63  // Instruction::initialize();
64  // BlockBegin::initialize();
65  GraphBuilder::initialize();
66  // note: to use more than one instance of LinearScan at a time this function call has to
67  //       be moved somewhere outside of this constructor:
68  Interval::initialize(arena);
69}
70
71
72void Compiler::initialize() {
73  if (_runtimes != initialized) {
74    initialize_runtimes( initialize_all, &_runtimes);
75  }
76  mark_initialized();
77}
78
79
80BufferBlob* Compiler::build_buffer_blob() {
81  // setup CodeBuffer.  Preallocate a BufferBlob of size
82  // NMethodSizeLimit plus some extra space for constants.
83  int code_buffer_size = Compilation::desired_max_code_buffer_size() +
84    Compilation::desired_max_constant_size();
85  BufferBlob* blob = BufferBlob::create("Compiler1 temporary CodeBuffer",
86                                        code_buffer_size);
87  guarantee(blob != NULL, "must create initial code buffer");
88  return blob;
89}
90
91
92void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci) {
93  // Allocate buffer blob once at startup since allocation for each
94  // compilation seems to be too expensive (at least on Intel win32).
95  BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
96  if (buffer_blob == NULL) {
97    buffer_blob = build_buffer_blob();
98    CompilerThread::current()->set_buffer_blob(buffer_blob);
99  }
100
101  if (!is_initialized()) {
102    initialize();
103  }
104  // invoke compilation
105  {
106    // We are nested here because we need for the destructor
107    // of Compilation to occur before we release the any
108    // competing compiler thread
109    ResourceMark rm;
110    Compilation c(this, env, method, entry_bci, buffer_blob);
111  }
112}
113
114
115void Compiler::print_timers() {
116  Compilation::print_timers();
117}
118