Mercurial > hg > truffle
annotate src/share/vm/ci/ciMethodData.hpp @ 14206:e7b58922266b
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Reviewed-by: kvn, sspitsyn
author | mgronlun |
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date | Thu, 05 Dec 2013 12:35:38 +0100 |
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0 | 1 /* |
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2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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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. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_CI_CIMETHODDATA_HPP |
26 #define SHARE_VM_CI_CIMETHODDATA_HPP | |
27 | |
28 #include "ci/ciClassList.hpp" | |
29 #include "ci/ciKlass.hpp" | |
30 #include "ci/ciObject.hpp" | |
31 #include "ci/ciUtilities.hpp" | |
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32 #include "oops/methodData.hpp" |
1972 | 33 #include "oops/oop.inline.hpp" |
34 | |
0 | 35 class ciBitData; |
36 class ciCounterData; | |
37 class ciJumpData; | |
38 class ciReceiverTypeData; | |
39 class ciRetData; | |
40 class ciBranchData; | |
41 class ciArrayData; | |
42 class ciMultiBranchData; | |
45
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43 class ciArgInfoData; |
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44 class ciCallTypeData; |
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45 class ciVirtualCallTypeData; |
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46 class ciParametersTypeData; |
0 | 47 |
48 typedef ProfileData ciProfileData; | |
49 | |
50 class ciBitData : public BitData { | |
51 public: | |
52 ciBitData(DataLayout* layout) : BitData(layout) {}; | |
53 }; | |
54 | |
55 class ciCounterData : public CounterData { | |
56 public: | |
57 ciCounterData(DataLayout* layout) : CounterData(layout) {}; | |
58 }; | |
59 | |
60 class ciJumpData : public JumpData { | |
61 public: | |
62 ciJumpData(DataLayout* layout) : JumpData(layout) {}; | |
63 }; | |
64 | |
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65 class ciTypeEntries { |
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66 protected: |
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67 static intptr_t translate_klass(intptr_t k) { |
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68 Klass* v = TypeEntries::valid_klass(k); |
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69 if (v != NULL) { |
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70 ciKlass* klass = CURRENT_ENV->get_klass(v); |
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71 return with_status(klass, k); |
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72 } |
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73 return with_status(NULL, k); |
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74 } |
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75 |
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76 public: |
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77 static ciKlass* valid_ciklass(intptr_t k) { |
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78 if (!TypeEntries::is_type_none(k) && |
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79 !TypeEntries::is_type_unknown(k)) { |
13080 | 80 ciKlass* res = (ciKlass*)TypeEntries::klass_part(k); |
81 assert(res != NULL, "invalid"); | |
82 return res; | |
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83 } else { |
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84 return NULL; |
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85 } |
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86 } |
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87 |
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88 static intptr_t with_status(ciKlass* k, intptr_t in) { |
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89 return TypeEntries::with_status((intptr_t)k, in); |
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90 } |
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91 |
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92 #ifndef PRODUCT |
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93 static void print_ciklass(outputStream* st, intptr_t k); |
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94 #endif |
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95 }; |
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96 |
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97 class ciTypeStackSlotEntries : public TypeStackSlotEntries, ciTypeEntries { |
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98 public: |
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99 void translate_type_data_from(const TypeStackSlotEntries* args); |
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100 |
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101 ciKlass* valid_type(int i) const { |
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102 return valid_ciklass(type(i)); |
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103 } |
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104 |
12966 | 105 bool maybe_null(int i) const { |
106 return was_null_seen(type(i)); | |
107 } | |
108 | |
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109 #ifndef PRODUCT |
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110 void print_data_on(outputStream* st) const; |
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111 #endif |
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112 }; |
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113 |
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114 class ciReturnTypeEntry : public ReturnTypeEntry, ciTypeEntries { |
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115 public: |
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116 void translate_type_data_from(const ReturnTypeEntry* ret); |
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117 |
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118 ciKlass* valid_type() const { |
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119 return valid_ciklass(type()); |
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120 } |
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121 |
12966 | 122 bool maybe_null() const { |
123 return was_null_seen(type()); | |
124 } | |
125 | |
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126 #ifndef PRODUCT |
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127 void print_data_on(outputStream* st) const; |
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128 #endif |
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129 }; |
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130 |
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131 class ciCallTypeData : public CallTypeData { |
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132 public: |
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133 ciCallTypeData(DataLayout* layout) : CallTypeData(layout) {} |
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134 |
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135 ciTypeStackSlotEntries* args() const { return (ciTypeStackSlotEntries*)CallTypeData::args(); } |
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136 ciReturnTypeEntry* ret() const { return (ciReturnTypeEntry*)CallTypeData::ret(); } |
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137 |
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138 void translate_from(const ProfileData* data) { |
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139 if (has_arguments()) { |
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140 args()->translate_type_data_from(data->as_CallTypeData()->args()); |
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141 } |
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142 if (has_return()) { |
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143 ret()->translate_type_data_from(data->as_CallTypeData()->ret()); |
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144 } |
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145 } |
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146 |
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147 intptr_t argument_type(int i) const { |
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148 assert(has_arguments(), "no arg type profiling data"); |
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149 return args()->type(i); |
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150 } |
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151 |
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152 ciKlass* valid_argument_type(int i) const { |
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153 assert(has_arguments(), "no arg type profiling data"); |
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154 return args()->valid_type(i); |
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155 } |
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156 |
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157 intptr_t return_type() const { |
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158 assert(has_return(), "no ret type profiling data"); |
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159 return ret()->type(); |
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160 } |
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161 |
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162 ciKlass* valid_return_type() const { |
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163 assert(has_return(), "no ret type profiling data"); |
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164 return ret()->valid_type(); |
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165 } |
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166 |
12966 | 167 bool argument_maybe_null(int i) const { |
168 return args()->maybe_null(i); | |
169 } | |
170 | |
171 bool return_maybe_null() const { | |
172 return ret()->maybe_null(); | |
173 } | |
174 | |
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175 #ifndef PRODUCT |
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176 void print_data_on(outputStream* st) const; |
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177 #endif |
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178 }; |
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179 |
0 | 180 class ciReceiverTypeData : public ReceiverTypeData { |
181 public: | |
182 ciReceiverTypeData(DataLayout* layout) : ReceiverTypeData(layout) {}; | |
183 | |
184 void set_receiver(uint row, ciKlass* recv) { | |
185 assert((uint)row < row_limit(), "oob"); | |
186 set_intptr_at(receiver0_offset + row * receiver_type_row_cell_count, | |
187 (intptr_t) recv); | |
188 } | |
189 | |
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190 ciKlass* receiver(uint row) const { |
0 | 191 assert((uint)row < row_limit(), "oob"); |
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192 ciKlass* recv = (ciKlass*)intptr_at(receiver0_offset + row * receiver_type_row_cell_count); |
0 | 193 assert(recv == NULL || recv->is_klass(), "wrong type"); |
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194 return recv; |
0 | 195 } |
196 | |
197 // Copy & translate from oop based ReceiverTypeData | |
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198 virtual void translate_from(const ProfileData* data) { |
0 | 199 translate_receiver_data_from(data); |
200 } | |
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201 void translate_receiver_data_from(const ProfileData* data); |
0 | 202 #ifndef PRODUCT |
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203 void print_data_on(outputStream* st) const; |
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204 void print_receiver_data_on(outputStream* st) const; |
0 | 205 #endif |
206 }; | |
207 | |
208 class ciVirtualCallData : public VirtualCallData { | |
209 // Fake multiple inheritance... It's a ciReceiverTypeData also. | |
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210 ciReceiverTypeData* rtd_super() const { return (ciReceiverTypeData*) this; } |
0 | 211 |
212 public: | |
213 ciVirtualCallData(DataLayout* layout) : VirtualCallData(layout) {}; | |
214 | |
215 void set_receiver(uint row, ciKlass* recv) { | |
216 rtd_super()->set_receiver(row, recv); | |
217 } | |
218 | |
219 ciKlass* receiver(uint row) { | |
220 return rtd_super()->receiver(row); | |
221 } | |
222 | |
223 // Copy & translate from oop based VirtualCallData | |
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224 virtual void translate_from(const ProfileData* data) { |
0 | 225 rtd_super()->translate_receiver_data_from(data); |
226 } | |
227 #ifndef PRODUCT | |
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228 void print_data_on(outputStream* st) const; |
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229 #endif |
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230 }; |
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231 |
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232 class ciVirtualCallTypeData : public VirtualCallTypeData { |
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233 private: |
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234 // Fake multiple inheritance... It's a ciReceiverTypeData also. |
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235 ciReceiverTypeData* rtd_super() const { return (ciReceiverTypeData*) this; } |
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236 public: |
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237 ciVirtualCallTypeData(DataLayout* layout) : VirtualCallTypeData(layout) {} |
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238 |
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239 void set_receiver(uint row, ciKlass* recv) { |
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240 rtd_super()->set_receiver(row, recv); |
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241 } |
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242 |
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243 ciKlass* receiver(uint row) const { |
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244 return rtd_super()->receiver(row); |
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245 } |
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246 |
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247 ciTypeStackSlotEntries* args() const { return (ciTypeStackSlotEntries*)VirtualCallTypeData::args(); } |
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248 ciReturnTypeEntry* ret() const { return (ciReturnTypeEntry*)VirtualCallTypeData::ret(); } |
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249 |
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250 // Copy & translate from oop based VirtualCallData |
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251 virtual void translate_from(const ProfileData* data) { |
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252 rtd_super()->translate_receiver_data_from(data); |
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253 if (has_arguments()) { |
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254 args()->translate_type_data_from(data->as_VirtualCallTypeData()->args()); |
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255 } |
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256 if (has_return()) { |
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257 ret()->translate_type_data_from(data->as_VirtualCallTypeData()->ret()); |
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258 } |
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259 } |
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260 |
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261 intptr_t argument_type(int i) const { |
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262 assert(has_arguments(), "no arg type profiling data"); |
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263 return args()->type(i); |
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264 } |
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265 |
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266 ciKlass* valid_argument_type(int i) const { |
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267 assert(has_arguments(), "no arg type profiling data"); |
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268 return args()->valid_type(i); |
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269 } |
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270 |
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271 intptr_t return_type() const { |
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272 assert(has_return(), "no ret type profiling data"); |
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273 return ret()->type(); |
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274 } |
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275 |
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276 ciKlass* valid_return_type() const { |
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277 assert(has_return(), "no ret type profiling data"); |
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278 return ret()->valid_type(); |
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279 } |
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280 |
12966 | 281 bool argument_maybe_null(int i) const { |
282 return args()->maybe_null(i); | |
283 } | |
284 | |
285 bool return_maybe_null() const { | |
286 return ret()->maybe_null(); | |
287 } | |
288 | |
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289 #ifndef PRODUCT |
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290 void print_data_on(outputStream* st) const; |
0 | 291 #endif |
292 }; | |
293 | |
294 | |
295 class ciRetData : public RetData { | |
296 public: | |
297 ciRetData(DataLayout* layout) : RetData(layout) {}; | |
298 }; | |
299 | |
300 class ciBranchData : public BranchData { | |
301 public: | |
302 ciBranchData(DataLayout* layout) : BranchData(layout) {}; | |
303 }; | |
304 | |
305 class ciArrayData : public ArrayData { | |
306 public: | |
307 ciArrayData(DataLayout* layout) : ArrayData(layout) {}; | |
308 }; | |
309 | |
310 class ciMultiBranchData : public MultiBranchData { | |
311 public: | |
312 ciMultiBranchData(DataLayout* layout) : MultiBranchData(layout) {}; | |
313 }; | |
314 | |
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315 class ciArgInfoData : public ArgInfoData { |
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316 public: |
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317 ciArgInfoData(DataLayout* layout) : ArgInfoData(layout) {}; |
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318 }; |
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319 |
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320 class ciParametersTypeData : public ParametersTypeData { |
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321 public: |
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322 ciParametersTypeData(DataLayout* layout) : ParametersTypeData(layout) {} |
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323 |
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324 virtual void translate_from(const ProfileData* data) { |
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325 parameters()->translate_type_data_from(data->as_ParametersTypeData()->parameters()); |
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326 } |
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327 |
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328 ciTypeStackSlotEntries* parameters() const { return (ciTypeStackSlotEntries*)ParametersTypeData::parameters(); } |
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329 |
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330 ciKlass* valid_parameter_type(int i) const { |
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331 return parameters()->valid_type(i); |
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332 } |
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333 |
12966 | 334 bool parameter_maybe_null(int i) const { |
335 return parameters()->maybe_null(i); | |
336 } | |
337 | |
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338 #ifndef PRODUCT |
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339 void print_data_on(outputStream* st) const; |
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340 #endif |
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341 }; |
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342 |
0 | 343 // ciMethodData |
344 // | |
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345 // This class represents a MethodData* in the HotSpot virtual |
0 | 346 // machine. |
347 | |
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348 class ciMethodData : public ciMetadata { |
0 | 349 CI_PACKAGE_ACCESS |
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350 friend class ciReplay; |
0 | 351 |
352 private: | |
353 // Size in bytes | |
354 int _data_size; | |
355 int _extra_data_size; | |
356 | |
357 // Data entries | |
358 intptr_t* _data; | |
359 | |
360 // Cached hint for data_before() | |
361 int _hint_di; | |
362 | |
363 // Is data attached? And is it mature? | |
364 enum { empty_state, immature_state, mature_state }; | |
365 u_char _state; | |
366 | |
367 // Set this true if empty extra_data slots are ever witnessed. | |
368 u_char _saw_free_extra_data; | |
369 | |
370 // Support for interprocedural escape analysis | |
371 intx _eflags; // flags on escape information | |
372 intx _arg_local; // bit set of non-escaping arguments | |
373 intx _arg_stack; // bit set of stack-allocatable arguments | |
374 intx _arg_returned; // bit set of returned arguments | |
375 | |
376 // Maturity of the oop when the snapshot is taken. | |
377 int _current_mileage; | |
378 | |
1783 | 379 // These counters hold the age of MDO in tiered. In tiered we can have the same method |
380 // running at different compilation levels concurrently. So, in order to precisely measure | |
381 // its maturity we need separate counters. | |
382 int _invocation_counter; | |
383 int _backedge_counter; | |
384 | |
0 | 385 // Coherent snapshot of original header. |
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386 MethodData _orig; |
0 | 387 |
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388 // Dedicated area dedicated to parameters. Null if no parameter |
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389 // profiling for this method. |
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390 DataLayout* _parameters; |
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391 |
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392 ciMethodData(MethodData* md); |
0 | 393 ciMethodData(); |
394 | |
395 // Accessors | |
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396 int data_size() const { return _data_size; } |
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397 int extra_data_size() const { return _extra_data_size; } |
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398 intptr_t * data() const { return _data; } |
0 | 399 |
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400 MethodData* get_MethodData() const { |
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401 return (MethodData*)_metadata; |
0 | 402 } |
403 | |
404 const char* type_string() { return "ciMethodData"; } | |
405 | |
406 void print_impl(outputStream* st); | |
407 | |
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408 DataLayout* data_layout_at(int data_index) const { |
0 | 409 assert(data_index % sizeof(intptr_t) == 0, "unaligned"); |
410 return (DataLayout*) (((address)_data) + data_index); | |
411 } | |
412 | |
413 bool out_of_bounds(int data_index) { | |
414 return data_index >= data_size(); | |
415 } | |
416 | |
417 // hint accessors | |
418 int hint_di() const { return _hint_di; } | |
419 void set_hint_di(int di) { | |
420 assert(!out_of_bounds(di), "hint_di out of bounds"); | |
421 _hint_di = di; | |
422 } | |
423 ciProfileData* data_before(int bci) { | |
424 // avoid SEGV on this edge case | |
425 if (data_size() == 0) | |
426 return NULL; | |
427 int hint = hint_di(); | |
428 if (data_layout_at(hint)->bci() <= bci) | |
429 return data_at(hint); | |
430 return first_data(); | |
431 } | |
432 | |
433 | |
434 // What is the index of the first data entry? | |
435 int first_di() { return 0; } | |
436 | |
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437 ciArgInfoData *arg_info() const; |
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438 |
0 | 439 public: |
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440 bool is_method_data() const { return true; } |
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441 |
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442 bool is_empty() { return _state == empty_state; } |
0 | 443 bool is_mature() { return _state == mature_state; } |
444 | |
445 int creation_mileage() { return _orig.creation_mileage(); } | |
446 int current_mileage() { return _current_mileage; } | |
447 | |
1783 | 448 int invocation_count() { return _invocation_counter; } |
449 int backedge_count() { return _backedge_counter; } | |
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450 // Transfer information about the method to MethodData*. |
1783 | 451 // would_profile means we would like to profile this method, |
452 // meaning it's not trivial. | |
453 void set_would_profile(bool p); | |
454 // Also set the numer of loops and blocks in the method. | |
455 // Again, this is used to determine if a method is trivial. | |
456 void set_compilation_stats(short loops, short blocks); | |
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457 // If the compiler finds a profiled type that is known statically |
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458 // for sure, set it in the MethodData |
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459 void set_argument_type(int bci, int i, ciKlass* k); |
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460 void set_parameter_type(int i, ciKlass* k); |
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461 void set_return_type(int bci, ciKlass* k); |
1783 | 462 |
0 | 463 void load_data(); |
464 | |
465 // Convert a dp (data pointer) to a di (data index). | |
466 int dp_to_di(address dp) { | |
467 return dp - ((address)_data); | |
468 } | |
469 | |
470 // Get the data at an arbitrary (sort of) data index. | |
471 ciProfileData* data_at(int data_index); | |
472 | |
473 // Walk through the data in order. | |
474 ciProfileData* first_data() { return data_at(first_di()); } | |
475 ciProfileData* next_data(ciProfileData* current); | |
476 bool is_valid(ciProfileData* current) { return current != NULL; } | |
477 | |
478 // Get the data at an arbitrary bci, or NULL if there is none. | |
479 ciProfileData* bci_to_data(int bci); | |
480 ciProfileData* bci_to_extra_data(int bci, bool create_if_missing); | |
481 | |
482 uint overflow_trap_count() const { | |
483 return _orig.overflow_trap_count(); | |
484 } | |
485 uint overflow_recompile_count() const { | |
486 return _orig.overflow_recompile_count(); | |
487 } | |
488 uint decompile_count() const { | |
489 return _orig.decompile_count(); | |
490 } | |
491 uint trap_count(int reason) const { | |
492 return _orig.trap_count(reason); | |
493 } | |
494 uint trap_reason_limit() const { return _orig.trap_reason_limit(); } | |
495 uint trap_count_limit() const { return _orig.trap_count_limit(); } | |
496 | |
497 // Helpful query functions that decode trap_state. | |
498 int has_trap_at(ciProfileData* data, int reason); | |
499 int has_trap_at(int bci, int reason) { | |
500 return has_trap_at(bci_to_data(bci), reason); | |
501 } | |
502 int trap_recompiled_at(ciProfileData* data); | |
503 int trap_recompiled_at(int bci) { | |
504 return trap_recompiled_at(bci_to_data(bci)); | |
505 } | |
506 | |
507 void clear_escape_info(); | |
508 bool has_escape_info(); | |
509 void update_escape_info(); | |
510 | |
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511 void set_eflag(MethodData::EscapeFlag f); |
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512 void clear_eflag(MethodData::EscapeFlag f); |
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513 bool eflag_set(MethodData::EscapeFlag f) const; |
0 | 514 |
515 void set_arg_local(int i); | |
516 void set_arg_stack(int i); | |
517 void set_arg_returned(int i); | |
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518 void set_arg_modified(int arg, uint val); |
0 | 519 |
520 bool is_arg_local(int i) const; | |
521 bool is_arg_stack(int i) const; | |
522 bool is_arg_returned(int i) const; | |
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523 uint arg_modified(int arg) const; |
0 | 524 |
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525 ciParametersTypeData* parameters_type_data() const { |
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526 return _parameters != NULL ? new ciParametersTypeData(_parameters) : NULL; |
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527 } |
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528 |
0 | 529 // Code generation helper |
530 ByteSize offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data); | |
531 int byte_offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data) { return in_bytes(offset_of_slot(data, slot_offset_in_data)); } | |
532 | |
533 #ifndef PRODUCT | |
534 // printing support for method data | |
535 void print(); | |
536 void print_data_on(outputStream* st); | |
537 #endif | |
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538 void dump_replay_data(outputStream* out); |
0 | 539 }; |
1972 | 540 |
541 #endif // SHARE_VM_CI_CIMETHODDATA_HPP |