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annotate src/cpu/zero/vm/compiledIC_zero.cpp @ 11981:530fe88b3b2c hs25-b44

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Merge
author amurillo
date Fri, 02 Aug 2013 02:54:47 -0700
parents a6e09d6dd8e5
children c64b6b0c40c8
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1 /*
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2 * Copyright (c) 1997, 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 "classfile/systemDictionary.hpp"
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27 #include "code/codeCache.hpp"
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28 #include "code/compiledIC.hpp"
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29 #include "code/icBuffer.hpp"
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30 #include "code/nmethod.hpp"
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31 #include "code/vtableStubs.hpp"
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32 #include "interpreter/interpreter.hpp"
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33 #include "interpreter/linkResolver.hpp"
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34 #include "memory/metadataFactory.hpp"
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35 #include "memory/oopFactory.hpp"
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36 #include "oops/method.hpp"
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37 #include "oops/oop.inline.hpp"
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38 #include "oops/symbol.hpp"
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39 #include "runtime/icache.hpp"
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40 #include "runtime/sharedRuntime.hpp"
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41 #include "runtime/stubRoutines.hpp"
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42 #include "utilities/events.hpp"
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43
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44
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45 // Release the CompiledICHolder* associated with this call site is there is one.
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46 void CompiledIC::cleanup_call_site(virtual_call_Relocation* call_site) {
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47 // This call site might have become stale so inspect it carefully.
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48 NativeCall* call = nativeCall_at(call_site->addr());
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49 if (is_icholder_entry(call->destination())) {
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50 NativeMovConstReg* value = nativeMovConstReg_at(call_site->cached_value());
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51 InlineCacheBuffer::queue_for_release((CompiledICHolder*)value->data());
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52 }
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53 }
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54
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55 bool CompiledIC::is_icholder_call_site(virtual_call_Relocation* call_site) {
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56 // This call site might have become stale so inspect it carefully.
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57 NativeCall* call = nativeCall_at(call_site->addr());
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58 return is_icholder_entry(call->destination());
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59 }
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60
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61 //-----------------------------------------------------------------------------
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62 // High-level access to an inline cache. Guaranteed to be MT-safe.
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63
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64 CompiledIC::CompiledIC(nmethod* nm, NativeCall* call)
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65 : _ic_call(call)
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66 {
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67 address ic_call = call->instruction_address();
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68
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69 assert(ic_call != NULL, "ic_call address must be set");
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70 assert(nm != NULL, "must pass nmethod");
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71 assert(nm->contains(ic_call), "must be in nmethod");
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72
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73 // Search for the ic_call at the given address.
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74 RelocIterator iter(nm, ic_call, ic_call+1);
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75 bool ret = iter.next();
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76 assert(ret == true, "relocInfo must exist at this address");
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77 assert(iter.addr() == ic_call, "must find ic_call");
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78 if (iter.type() == relocInfo::virtual_call_type) {
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79 virtual_call_Relocation* r = iter.virtual_call_reloc();
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80 _is_optimized = false;
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81 _value = nativeMovConstReg_at(r->cached_value());
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82 } else {
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83 assert(iter.type() == relocInfo::opt_virtual_call_type, "must be a virtual call");
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84 _is_optimized = true;
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85 _value = NULL;
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86 }
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87 }
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88
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89 // ----------------------------------------------------------------------------
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90
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91 void CompiledStaticCall::emit_to_interp_stub(CodeBuffer &cbuf) {
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92 ShouldNotReachHere(); // Only needed for COMPILER2.
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93 }
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94
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95 int CompiledStaticCall::to_interp_stub_size() {
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96 ShouldNotReachHere(); // Only needed for COMPILER2.
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97 return 0;
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98 }
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99
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100 // Relocation entries for call stub, compiled java to interpreter.
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101 int CompiledStaticCall::reloc_to_interp_stub() {
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102 ShouldNotReachHere(); // Only needed for COMPILER2.
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103 return 0;
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104 }
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105
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106 void CompiledStaticCall::set_to_interpreted(methodHandle callee, address entry) {
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107 ShouldNotReachHere(); // Only needed for COMPILER2.
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108 }
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109
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110 void CompiledStaticCall::set_stub_to_clean(static_stub_Relocation* static_stub) {
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111 ShouldNotReachHere(); // Only needed for COMPILER2.
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112 }
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113
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114 //-----------------------------------------------------------------------------
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115 // Non-product mode code.
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116 #ifndef PRODUCT
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117
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118 void CompiledStaticCall::verify() {
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119 ShouldNotReachHere(); // Only needed for COMPILER2.
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120 }
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121
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122 #endif // !PRODUCT