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comparison src/share/vm/c1/c1_Compiler.cpp @ 1930:2d26b0046e0d

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Merge.
author Thomas Wuerthinger <wuerthinger@ssw.jku.at>
date Tue, 30 Nov 2010 14:53:30 +0100
parents 72cfb36c6bb2 b812ff5abc73
children 06f017f7daa7
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1484:6b7001391c97 1930:2d26b0046e0d
1 /* 1 /*
2 * Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved. 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. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
14 * 14 *
15 * You should have received a copy of the GNU General Public License version 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, 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. 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 * 18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * CA 95054 USA or visit www.sun.com if you need additional information or 20 * or visit www.oracle.com if you need additional information or have any
21 * have any questions. 21 * questions.
22 * 22 *
23 */ 23 */
24 24
25 #include "incls/_precompiled.incl" 25 #include "incls/_precompiled.incl"
26 #include "incls/_c1_Compiler.cpp.incl" 26 #include "incls/_c1_Compiler.cpp.incl"
27 27
28 volatile int Compiler::_runtimes = uninitialized; 28 volatile int Compiler::_runtimes = uninitialized;
29
30 volatile bool Compiler::_compiling = false;
31
32 29
33 Compiler::Compiler() { 30 Compiler::Compiler() {
34 } 31 }
35 32
36 33
37 Compiler::~Compiler() { 34 Compiler::~Compiler() {
38 Unimplemented(); 35 Unimplemented();
39 } 36 }
40 37
41 38
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 }
53
54
42 void Compiler::initialize() { 55 void Compiler::initialize() {
43 if (_runtimes != initialized) { 56 if (_runtimes != initialized) {
44 initialize_runtimes( Runtime1::initialize, &_runtimes); 57 initialize_runtimes( initialize_all, &_runtimes);
45 } 58 }
46 mark_initialized(); 59 mark_initialized();
47 } 60 }
48 61
49 62
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 }
73
74
50 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci) { 75 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci) {
51 assert(!UseC1X, "c1 called in UseC1X mode!"); 76 assert(!UseC1X, "c1 called in UseC1X mode!");
77 // Allocate buffer blob once at startup since allocation for each
78 // compilation seems to be too expensive (at least on Intel win32).
79 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
80 if (buffer_blob == NULL) {
81 buffer_blob = build_buffer_blob();
82 CompilerThread::current()->set_buffer_blob(buffer_blob);
83 }
52 84
53 if (!is_initialized()) { 85 if (!is_initialized()) {
54 initialize(); 86 initialize();
55 } 87 }
56 // invoke compilation 88 // invoke compilation
57 #ifdef TIERED
58 // We are thread in native here...
59 CompilerThread* thread = CompilerThread::current();
60 {
61 ThreadInVMfromNative tv(thread);
62 MutexLocker only_one (C1_lock, thread);
63 while ( _compiling) {
64 C1_lock->wait();
65 }
66 _compiling = true;
67 }
68 #endif // TIERED
69 { 89 {
70 // We are nested here because we need for the destructor 90 // We are nested here because we need for the destructor
71 // of Compilation to occur before we release the any 91 // of Compilation to occur before we release the any
72 // competing compiler thread 92 // competing compiler thread
73 ResourceMark rm; 93 ResourceMark rm;
74 Compilation c(this, env, method, entry_bci); 94 Compilation c(this, env, method, entry_bci, buffer_blob);
75 } 95 }
76 #ifdef TIERED
77 {
78 ThreadInVMfromNative tv(thread);
79 MutexLocker only_one (C1_lock, thread);
80 _compiling = false;
81 C1_lock->notify();
82 }
83 #endif // TIERED
84 } 96 }
85 97
86 98
87 void Compiler::print_timers() { 99 void Compiler::print_timers() {
88 Compilation::print_timers(); 100 Compilation::print_timers();