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annotate src/share/vm/c1/c1_Compiler.cpp @ 17524:89152779163c

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Merge with jdk8-b132
author Gilles Duboscq <duboscq@ssw.jku.at>
date Wed, 15 Oct 2014 11:59:32 +0200
parents 4ca6dc0799b6
children 7848fc12602b
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1 /*
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Gilles Duboscq <duboscq@ssw.jku.at>
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2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "c1/c1_Compilation.hpp"
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27 #include "c1/c1_Compiler.hpp"
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28 #include "c1/c1_FrameMap.hpp"
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29 #include "c1/c1_GraphBuilder.hpp"
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30 #include "c1/c1_LinearScan.hpp"
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31 #include "c1/c1_MacroAssembler.hpp"
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32 #include "c1/c1_Runtime1.hpp"
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33 #include "c1/c1_ValueType.hpp"
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34 #include "compiler/compileBroker.hpp"
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35 #include "compiler/compilerOracle.hpp"
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36 #include "interpreter/linkResolver.hpp"
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37 #include "memory/allocation.hpp"
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38 #include "memory/allocation.inline.hpp"
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39 #include "memory/resourceArea.hpp"
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40 #include "prims/nativeLookup.hpp"
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41 #include "runtime/arguments.hpp"
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42 #include "runtime/interfaceSupport.hpp"
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43 #include "runtime/sharedRuntime.hpp"
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44
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45
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46 Compiler::Compiler() : AbstractCompiler(c1) {
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47 }
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48
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49 void Compiler::init_c1_runtime() {
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50 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
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51 Arena* arena = new (mtCompiler) Arena();
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52 Runtime1::initialize(buffer_blob);
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53 FrameMap::initialize();
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54 // initialize data structures
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55 ValueType::initialize(arena);
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56 GraphBuilder::initialize();
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57 // note: to use more than one instance of LinearScan at a time this function call has to
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58 // be moved somewhere outside of this constructor:
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59 Interval::initialize(arena);
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60 }
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61
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62
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63 void Compiler::initialize() {
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64 // Buffer blob must be allocated per C1 compiler thread at startup
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65 BufferBlob* buffer_blob = init_buffer_blob();
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66
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67 if (should_perform_init()) {
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68 if (buffer_blob == NULL) {
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69 // When we come here we are in state 'initializing'; entire C1 compilation
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70 // can be shut down.
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71 set_state(failed);
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72 } else {
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73 init_c1_runtime();
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74 set_state(initialized);
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75 }
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76 }
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77 }
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78
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79 BufferBlob* Compiler::init_buffer_blob() {
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80 // Allocate buffer blob once at startup since allocation for each
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81 // compilation seems to be too expensive (at least on Intel win32).
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82 assert (CompilerThread::current()->get_buffer_blob() == NULL, "Should initialize only once");
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83
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84 // setup CodeBuffer. Preallocate a BufferBlob of size
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85 // NMethodSizeLimit plus some extra space for constants.
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86 int code_buffer_size = Compilation::desired_max_code_buffer_size() +
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87 Compilation::desired_max_constant_size();
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88
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89 BufferBlob* buffer_blob = BufferBlob::create("C1 temporary CodeBuffer", code_buffer_size);
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90 if (buffer_blob != NULL) {
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91 CompilerThread::current()->set_buffer_blob(buffer_blob);
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92 }
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94 return buffer_blob;
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95 }
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96
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97
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98 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci) {
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99 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
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100 assert(buffer_blob != NULL, "Must exist");
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101 // invoke compilation
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102 {
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103 // We are nested here because we need for the destructor
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104 // of Compilation to occur before we release the any
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105 // competing compiler thread
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106 ResourceMark rm;
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107 Compilation c(this, env, method, entry_bci, buffer_blob);
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108 }
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109 }
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112 void Compiler::print_timers() {
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113 Compilation::print_timers();
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114 }