Mercurial > hg > truffle
annotate src/share/vm/ci/ciMethodData.hpp @ 13046:613e6a6fc328
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author | iveresov |
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date | Tue, 05 Nov 2013 02:29:41 -0800 |
parents | b2ee5dc63353 |
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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)) { |
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80 return (ciKlass*)TypeEntries::klass_part(k); |
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81 } else { |
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82 return NULL; |
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83 } |
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84 } |
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85 |
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86 static intptr_t with_status(ciKlass* k, intptr_t in) { |
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87 return TypeEntries::with_status((intptr_t)k, in); |
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88 } |
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89 |
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90 #ifndef PRODUCT |
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91 static void print_ciklass(outputStream* st, intptr_t k); |
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92 #endif |
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93 }; |
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94 |
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95 class ciTypeStackSlotEntries : public TypeStackSlotEntries, ciTypeEntries { |
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96 public: |
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97 void translate_type_data_from(const TypeStackSlotEntries* args); |
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98 |
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99 ciKlass* valid_type(int i) const { |
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100 return valid_ciklass(type(i)); |
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101 } |
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102 |
12966 | 103 bool maybe_null(int i) const { |
104 return was_null_seen(type(i)); | |
105 } | |
106 | |
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107 #ifndef PRODUCT |
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108 void print_data_on(outputStream* st) const; |
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109 #endif |
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110 }; |
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111 |
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112 class ciReturnTypeEntry : public ReturnTypeEntry, ciTypeEntries { |
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113 public: |
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114 void translate_type_data_from(const ReturnTypeEntry* ret); |
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115 |
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116 ciKlass* valid_type() const { |
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117 return valid_ciklass(type()); |
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118 } |
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119 |
12966 | 120 bool maybe_null() const { |
121 return was_null_seen(type()); | |
122 } | |
123 | |
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124 #ifndef PRODUCT |
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125 void print_data_on(outputStream* st) const; |
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126 #endif |
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127 }; |
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128 |
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129 class ciCallTypeData : public CallTypeData { |
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130 public: |
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131 ciCallTypeData(DataLayout* layout) : CallTypeData(layout) {} |
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132 |
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133 ciTypeStackSlotEntries* args() const { return (ciTypeStackSlotEntries*)CallTypeData::args(); } |
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134 ciReturnTypeEntry* ret() const { return (ciReturnTypeEntry*)CallTypeData::ret(); } |
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135 |
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136 void translate_from(const ProfileData* data) { |
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137 if (has_arguments()) { |
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138 args()->translate_type_data_from(data->as_CallTypeData()->args()); |
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139 } |
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140 if (has_return()) { |
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141 ret()->translate_type_data_from(data->as_CallTypeData()->ret()); |
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142 } |
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143 } |
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144 |
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145 intptr_t argument_type(int i) const { |
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146 assert(has_arguments(), "no arg type profiling data"); |
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147 return args()->type(i); |
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148 } |
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149 |
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150 ciKlass* valid_argument_type(int i) const { |
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151 assert(has_arguments(), "no arg type profiling data"); |
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152 return args()->valid_type(i); |
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153 } |
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154 |
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155 intptr_t return_type() const { |
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156 assert(has_return(), "no ret type profiling data"); |
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157 return ret()->type(); |
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158 } |
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159 |
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160 ciKlass* valid_return_type() const { |
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161 assert(has_return(), "no ret type profiling data"); |
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162 return ret()->valid_type(); |
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163 } |
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164 |
12966 | 165 bool argument_maybe_null(int i) const { |
166 return args()->maybe_null(i); | |
167 } | |
168 | |
169 bool return_maybe_null() const { | |
170 return ret()->maybe_null(); | |
171 } | |
172 | |
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173 #ifndef PRODUCT |
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174 void print_data_on(outputStream* st) const; |
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175 #endif |
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176 }; |
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177 |
0 | 178 class ciReceiverTypeData : public ReceiverTypeData { |
179 public: | |
180 ciReceiverTypeData(DataLayout* layout) : ReceiverTypeData(layout) {}; | |
181 | |
182 void set_receiver(uint row, ciKlass* recv) { | |
183 assert((uint)row < row_limit(), "oob"); | |
184 set_intptr_at(receiver0_offset + row * receiver_type_row_cell_count, | |
185 (intptr_t) recv); | |
186 } | |
187 | |
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188 ciKlass* receiver(uint row) const { |
0 | 189 assert((uint)row < row_limit(), "oob"); |
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190 ciKlass* recv = (ciKlass*)intptr_at(receiver0_offset + row * receiver_type_row_cell_count); |
0 | 191 assert(recv == NULL || recv->is_klass(), "wrong type"); |
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192 return recv; |
0 | 193 } |
194 | |
195 // Copy & translate from oop based ReceiverTypeData | |
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196 virtual void translate_from(const ProfileData* data) { |
0 | 197 translate_receiver_data_from(data); |
198 } | |
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199 void translate_receiver_data_from(const ProfileData* data); |
0 | 200 #ifndef PRODUCT |
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201 void print_data_on(outputStream* st) const; |
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202 void print_receiver_data_on(outputStream* st) const; |
0 | 203 #endif |
204 }; | |
205 | |
206 class ciVirtualCallData : public VirtualCallData { | |
207 // Fake multiple inheritance... It's a ciReceiverTypeData also. | |
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208 ciReceiverTypeData* rtd_super() const { return (ciReceiverTypeData*) this; } |
0 | 209 |
210 public: | |
211 ciVirtualCallData(DataLayout* layout) : VirtualCallData(layout) {}; | |
212 | |
213 void set_receiver(uint row, ciKlass* recv) { | |
214 rtd_super()->set_receiver(row, recv); | |
215 } | |
216 | |
217 ciKlass* receiver(uint row) { | |
218 return rtd_super()->receiver(row); | |
219 } | |
220 | |
221 // Copy & translate from oop based VirtualCallData | |
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222 virtual void translate_from(const ProfileData* data) { |
0 | 223 rtd_super()->translate_receiver_data_from(data); |
224 } | |
225 #ifndef PRODUCT | |
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226 void print_data_on(outputStream* st) const; |
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227 #endif |
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228 }; |
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229 |
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230 class ciVirtualCallTypeData : public VirtualCallTypeData { |
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231 private: |
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232 // Fake multiple inheritance... It's a ciReceiverTypeData also. |
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233 ciReceiverTypeData* rtd_super() const { return (ciReceiverTypeData*) this; } |
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234 public: |
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235 ciVirtualCallTypeData(DataLayout* layout) : VirtualCallTypeData(layout) {} |
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236 |
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237 void set_receiver(uint row, ciKlass* recv) { |
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238 rtd_super()->set_receiver(row, recv); |
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239 } |
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240 |
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241 ciKlass* receiver(uint row) const { |
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242 return rtd_super()->receiver(row); |
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243 } |
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244 |
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245 ciTypeStackSlotEntries* args() const { return (ciTypeStackSlotEntries*)VirtualCallTypeData::args(); } |
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246 ciReturnTypeEntry* ret() const { return (ciReturnTypeEntry*)VirtualCallTypeData::ret(); } |
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247 |
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248 // Copy & translate from oop based VirtualCallData |
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249 virtual void translate_from(const ProfileData* data) { |
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250 rtd_super()->translate_receiver_data_from(data); |
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251 if (has_arguments()) { |
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252 args()->translate_type_data_from(data->as_VirtualCallTypeData()->args()); |
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253 } |
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254 if (has_return()) { |
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255 ret()->translate_type_data_from(data->as_VirtualCallTypeData()->ret()); |
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256 } |
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257 } |
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258 |
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259 intptr_t argument_type(int i) const { |
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260 assert(has_arguments(), "no arg type profiling data"); |
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261 return args()->type(i); |
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262 } |
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263 |
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264 ciKlass* valid_argument_type(int i) const { |
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265 assert(has_arguments(), "no arg type profiling data"); |
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266 return args()->valid_type(i); |
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267 } |
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268 |
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269 intptr_t return_type() const { |
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270 assert(has_return(), "no ret type profiling data"); |
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271 return ret()->type(); |
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272 } |
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273 |
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274 ciKlass* valid_return_type() const { |
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275 assert(has_return(), "no ret type profiling data"); |
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276 return ret()->valid_type(); |
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277 } |
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278 |
12966 | 279 bool argument_maybe_null(int i) const { |
280 return args()->maybe_null(i); | |
281 } | |
282 | |
283 bool return_maybe_null() const { | |
284 return ret()->maybe_null(); | |
285 } | |
286 | |
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287 #ifndef PRODUCT |
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288 void print_data_on(outputStream* st) const; |
0 | 289 #endif |
290 }; | |
291 | |
292 | |
293 class ciRetData : public RetData { | |
294 public: | |
295 ciRetData(DataLayout* layout) : RetData(layout) {}; | |
296 }; | |
297 | |
298 class ciBranchData : public BranchData { | |
299 public: | |
300 ciBranchData(DataLayout* layout) : BranchData(layout) {}; | |
301 }; | |
302 | |
303 class ciArrayData : public ArrayData { | |
304 public: | |
305 ciArrayData(DataLayout* layout) : ArrayData(layout) {}; | |
306 }; | |
307 | |
308 class ciMultiBranchData : public MultiBranchData { | |
309 public: | |
310 ciMultiBranchData(DataLayout* layout) : MultiBranchData(layout) {}; | |
311 }; | |
312 | |
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313 class ciArgInfoData : public ArgInfoData { |
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314 public: |
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315 ciArgInfoData(DataLayout* layout) : ArgInfoData(layout) {}; |
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316 }; |
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317 |
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318 class ciParametersTypeData : public ParametersTypeData { |
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319 public: |
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320 ciParametersTypeData(DataLayout* layout) : ParametersTypeData(layout) {} |
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321 |
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322 virtual void translate_from(const ProfileData* data) { |
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323 parameters()->translate_type_data_from(data->as_ParametersTypeData()->parameters()); |
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324 } |
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325 |
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326 ciTypeStackSlotEntries* parameters() const { return (ciTypeStackSlotEntries*)ParametersTypeData::parameters(); } |
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327 |
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328 ciKlass* valid_parameter_type(int i) const { |
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329 return parameters()->valid_type(i); |
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330 } |
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331 |
12966 | 332 bool parameter_maybe_null(int i) const { |
333 return parameters()->maybe_null(i); | |
334 } | |
335 | |
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336 #ifndef PRODUCT |
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337 void print_data_on(outputStream* st) const; |
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338 #endif |
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339 }; |
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340 |
0 | 341 // ciMethodData |
342 // | |
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343 // This class represents a MethodData* in the HotSpot virtual |
0 | 344 // machine. |
345 | |
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346 class ciMethodData : public ciMetadata { |
0 | 347 CI_PACKAGE_ACCESS |
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348 friend class ciReplay; |
0 | 349 |
350 private: | |
351 // Size in bytes | |
352 int _data_size; | |
353 int _extra_data_size; | |
354 | |
355 // Data entries | |
356 intptr_t* _data; | |
357 | |
358 // Cached hint for data_before() | |
359 int _hint_di; | |
360 | |
361 // Is data attached? And is it mature? | |
362 enum { empty_state, immature_state, mature_state }; | |
363 u_char _state; | |
364 | |
365 // Set this true if empty extra_data slots are ever witnessed. | |
366 u_char _saw_free_extra_data; | |
367 | |
368 // Support for interprocedural escape analysis | |
369 intx _eflags; // flags on escape information | |
370 intx _arg_local; // bit set of non-escaping arguments | |
371 intx _arg_stack; // bit set of stack-allocatable arguments | |
372 intx _arg_returned; // bit set of returned arguments | |
373 | |
374 // Maturity of the oop when the snapshot is taken. | |
375 int _current_mileage; | |
376 | |
1783 | 377 // These counters hold the age of MDO in tiered. In tiered we can have the same method |
378 // running at different compilation levels concurrently. So, in order to precisely measure | |
379 // its maturity we need separate counters. | |
380 int _invocation_counter; | |
381 int _backedge_counter; | |
382 | |
0 | 383 // Coherent snapshot of original header. |
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384 MethodData _orig; |
0 | 385 |
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386 // Dedicated area dedicated to parameters. Null if no parameter |
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387 // profiling for this method. |
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388 DataLayout* _parameters; |
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389 |
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390 ciMethodData(MethodData* md); |
0 | 391 ciMethodData(); |
392 | |
393 // Accessors | |
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394 int data_size() const { return _data_size; } |
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395 int extra_data_size() const { return _extra_data_size; } |
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396 intptr_t * data() const { return _data; } |
0 | 397 |
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398 MethodData* get_MethodData() const { |
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399 return (MethodData*)_metadata; |
0 | 400 } |
401 | |
402 const char* type_string() { return "ciMethodData"; } | |
403 | |
404 void print_impl(outputStream* st); | |
405 | |
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406 DataLayout* data_layout_at(int data_index) const { |
0 | 407 assert(data_index % sizeof(intptr_t) == 0, "unaligned"); |
408 return (DataLayout*) (((address)_data) + data_index); | |
409 } | |
410 | |
411 bool out_of_bounds(int data_index) { | |
412 return data_index >= data_size(); | |
413 } | |
414 | |
415 // hint accessors | |
416 int hint_di() const { return _hint_di; } | |
417 void set_hint_di(int di) { | |
418 assert(!out_of_bounds(di), "hint_di out of bounds"); | |
419 _hint_di = di; | |
420 } | |
421 ciProfileData* data_before(int bci) { | |
422 // avoid SEGV on this edge case | |
423 if (data_size() == 0) | |
424 return NULL; | |
425 int hint = hint_di(); | |
426 if (data_layout_at(hint)->bci() <= bci) | |
427 return data_at(hint); | |
428 return first_data(); | |
429 } | |
430 | |
431 | |
432 // What is the index of the first data entry? | |
433 int first_di() { return 0; } | |
434 | |
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435 ciArgInfoData *arg_info() const; |
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436 |
0 | 437 public: |
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438 bool is_method_data() const { return true; } |
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439 |
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440 bool is_empty() { return _state == empty_state; } |
0 | 441 bool is_mature() { return _state == mature_state; } |
442 | |
443 int creation_mileage() { return _orig.creation_mileage(); } | |
444 int current_mileage() { return _current_mileage; } | |
445 | |
1783 | 446 int invocation_count() { return _invocation_counter; } |
447 int backedge_count() { return _backedge_counter; } | |
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448 // Transfer information about the method to MethodData*. |
1783 | 449 // would_profile means we would like to profile this method, |
450 // meaning it's not trivial. | |
451 void set_would_profile(bool p); | |
452 // Also set the numer of loops and blocks in the method. | |
453 // Again, this is used to determine if a method is trivial. | |
454 void set_compilation_stats(short loops, short blocks); | |
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455 // If the compiler finds a profiled type that is known statically |
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456 // for sure, set it in the MethodData |
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457 void set_argument_type(int bci, int i, ciKlass* k); |
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458 void set_parameter_type(int i, ciKlass* k); |
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459 void set_return_type(int bci, ciKlass* k); |
1783 | 460 |
0 | 461 void load_data(); |
462 | |
463 // Convert a dp (data pointer) to a di (data index). | |
464 int dp_to_di(address dp) { | |
465 return dp - ((address)_data); | |
466 } | |
467 | |
468 // Get the data at an arbitrary (sort of) data index. | |
469 ciProfileData* data_at(int data_index); | |
470 | |
471 // Walk through the data in order. | |
472 ciProfileData* first_data() { return data_at(first_di()); } | |
473 ciProfileData* next_data(ciProfileData* current); | |
474 bool is_valid(ciProfileData* current) { return current != NULL; } | |
475 | |
476 // Get the data at an arbitrary bci, or NULL if there is none. | |
477 ciProfileData* bci_to_data(int bci); | |
478 ciProfileData* bci_to_extra_data(int bci, bool create_if_missing); | |
479 | |
480 uint overflow_trap_count() const { | |
481 return _orig.overflow_trap_count(); | |
482 } | |
483 uint overflow_recompile_count() const { | |
484 return _orig.overflow_recompile_count(); | |
485 } | |
486 uint decompile_count() const { | |
487 return _orig.decompile_count(); | |
488 } | |
489 uint trap_count(int reason) const { | |
490 return _orig.trap_count(reason); | |
491 } | |
492 uint trap_reason_limit() const { return _orig.trap_reason_limit(); } | |
493 uint trap_count_limit() const { return _orig.trap_count_limit(); } | |
494 | |
495 // Helpful query functions that decode trap_state. | |
496 int has_trap_at(ciProfileData* data, int reason); | |
497 int has_trap_at(int bci, int reason) { | |
498 return has_trap_at(bci_to_data(bci), reason); | |
499 } | |
500 int trap_recompiled_at(ciProfileData* data); | |
501 int trap_recompiled_at(int bci) { | |
502 return trap_recompiled_at(bci_to_data(bci)); | |
503 } | |
504 | |
505 void clear_escape_info(); | |
506 bool has_escape_info(); | |
507 void update_escape_info(); | |
508 | |
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509 void set_eflag(MethodData::EscapeFlag f); |
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510 void clear_eflag(MethodData::EscapeFlag f); |
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511 bool eflag_set(MethodData::EscapeFlag f) const; |
0 | 512 |
513 void set_arg_local(int i); | |
514 void set_arg_stack(int i); | |
515 void set_arg_returned(int i); | |
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516 void set_arg_modified(int arg, uint val); |
0 | 517 |
518 bool is_arg_local(int i) const; | |
519 bool is_arg_stack(int i) const; | |
520 bool is_arg_returned(int i) const; | |
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521 uint arg_modified(int arg) const; |
0 | 522 |
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523 ciParametersTypeData* parameters_type_data() const { |
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524 return _parameters != NULL ? new ciParametersTypeData(_parameters) : NULL; |
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525 } |
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526 |
0 | 527 // Code generation helper |
528 ByteSize offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data); | |
529 int byte_offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data) { return in_bytes(offset_of_slot(data, slot_offset_in_data)); } | |
530 | |
531 #ifndef PRODUCT | |
532 // printing support for method data | |
533 void print(); | |
534 void print_data_on(outputStream* st); | |
535 #endif | |
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536 void dump_replay_data(outputStream* out); |
0 | 537 }; |
1972 | 538 |
539 #endif // SHARE_VM_CI_CIMETHODDATA_HPP |