Mercurial > hg > graal-compiler
annotate src/share/vm/oops/methodData.cpp @ 14518:d8041d695d19
Merged with jdk9/dev/hotspot changeset 3812c088b945
| author | twisti |
|---|---|
| date | Tue, 11 Mar 2014 18:45:59 -0700 |
| parents | 389d40d7d99f fdad2932c73f |
| children | 12eaf1a47a90 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 7956 | 2 * Copyright (c) 2000, 2013, 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 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "interpreter/bytecode.hpp" | |
| 28 #include "interpreter/bytecodeStream.hpp" | |
| 29 #include "interpreter/linkResolver.hpp" | |
| 7956 | 30 #include "memory/heapInspection.hpp" |
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31 #include "oops/methodData.hpp" |
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32 #include "prims/jvmtiRedefineClasses.hpp" |
| 1972 | 33 #include "runtime/compilationPolicy.hpp" |
| 34 #include "runtime/deoptimization.hpp" | |
| 35 #include "runtime/handles.inline.hpp" | |
| 0 | 36 |
| 37 // ================================================================== | |
| 38 // DataLayout | |
| 39 // | |
| 40 // Overlay for generic profiling data. | |
| 41 | |
| 42 // Some types of data layouts need a length field. | |
| 43 bool DataLayout::needs_array_len(u1 tag) { | |
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44 return (tag == multi_branch_data_tag) || (tag == arg_info_data_tag) || (tag == parameters_type_data_tag); |
| 0 | 45 } |
| 46 | |
| 47 // Perform generic initialization of the data. More specific | |
| 48 // initialization occurs in overrides of ProfileData::post_initialize. | |
| 49 void DataLayout::initialize(u1 tag, u2 bci, int cell_count) { | |
| 50 _header._bits = (intptr_t)0; | |
| 51 _header._struct._tag = tag; | |
| 52 _header._struct._bci = bci; | |
| 53 for (int i = 0; i < cell_count; i++) { | |
| 54 set_cell_at(i, (intptr_t)0); | |
| 55 } | |
| 56 if (needs_array_len(tag)) { | |
| 57 set_cell_at(ArrayData::array_len_off_set, cell_count - 1); // -1 for header. | |
| 58 } | |
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59 if (tag == call_type_data_tag) { |
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60 CallTypeData::initialize(this, cell_count); |
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61 } else if (tag == virtual_call_type_data_tag) { |
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62 VirtualCallTypeData::initialize(this, cell_count); |
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63 } |
| 0 | 64 } |
| 65 | |
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66 void DataLayout::clean_weak_klass_links(BoolObjectClosure* cl) { |
| 941 | 67 ResourceMark m; |
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68 data_in()->clean_weak_klass_links(cl); |
| 941 | 69 } |
| 70 | |
| 71 | |
| 0 | 72 // ================================================================== |
| 73 // ProfileData | |
| 74 // | |
| 75 // A ProfileData object is created to refer to a section of profiling | |
| 76 // data in a structured way. | |
| 77 | |
| 78 // Constructor for invalid ProfileData. | |
| 79 ProfileData::ProfileData() { | |
| 80 _data = NULL; | |
| 81 } | |
| 82 | |
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83 char* ProfileData::print_data_on_helper(const MethodData* md) const { |
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84 DataLayout* dp = md->extra_data_base(); |
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85 DataLayout* end = md->extra_data_limit(); |
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86 stringStream ss; |
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87 for (;; dp = MethodData::next_extra(dp)) { |
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88 assert(dp < end, "moved past end of extra data"); |
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89 switch(dp->tag()) { |
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90 case DataLayout::speculative_trap_data_tag: |
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91 if (dp->bci() == bci()) { |
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92 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
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93 int trap = data->trap_state(); |
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94 char buf[100]; |
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95 ss.print("trap/"); |
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96 data->method()->print_short_name(&ss); |
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97 ss.print("(%s) ", Deoptimization::format_trap_state(buf, sizeof(buf), trap)); |
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98 } |
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99 break; |
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100 case DataLayout::bit_data_tag: |
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101 break; |
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102 case DataLayout::no_tag: |
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103 case DataLayout::arg_info_data_tag: |
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104 return ss.as_string(); |
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105 break; |
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106 default: |
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107 fatal(err_msg("unexpected tag %d", dp->tag())); |
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108 } |
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109 } |
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110 return NULL; |
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111 } |
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112 |
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113 void ProfileData::print_data_on(outputStream* st, const MethodData* md) const { |
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114 print_data_on(st, print_data_on_helper(md)); |
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115 } |
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116 |
| 0 | 117 #ifndef PRODUCT |
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118 void ProfileData::print_shared(outputStream* st, const char* name, const char* extra) const { |
| 0 | 119 st->print("bci: %d", bci()); |
| 120 st->fill_to(tab_width_one); | |
| 121 st->print("%s", name); | |
| 122 tab(st); | |
| 123 int trap = trap_state(); | |
| 124 if (trap != 0) { | |
| 125 char buf[100]; | |
| 126 st->print("trap(%s) ", Deoptimization::format_trap_state(buf, sizeof(buf), trap)); | |
| 127 } | |
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128 if (extra != NULL) { |
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129 st->print(extra); |
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130 } |
| 0 | 131 int flags = data()->flags(); |
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132 if (flags != 0) { |
| 0 | 133 st->print("flags(%d) ", flags); |
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134 } |
| 0 | 135 } |
| 136 | |
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137 void ProfileData::tab(outputStream* st, bool first) const { |
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138 st->fill_to(first ? tab_width_one : tab_width_two); |
| 0 | 139 } |
| 140 #endif // !PRODUCT | |
| 141 | |
| 142 // ================================================================== | |
| 143 // BitData | |
| 144 // | |
| 145 // A BitData corresponds to a one-bit flag. This is used to indicate | |
| 146 // whether a checkcast bytecode has seen a null value. | |
| 147 | |
| 148 | |
| 149 #ifndef PRODUCT | |
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150 void BitData::print_data_on(outputStream* st, const char* extra) const { |
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151 print_shared(st, "BitData", extra); |
| 0 | 152 } |
| 153 #endif // !PRODUCT | |
| 154 | |
| 155 // ================================================================== | |
| 156 // CounterData | |
| 157 // | |
| 158 // A CounterData corresponds to a simple counter. | |
| 159 | |
| 160 #ifndef PRODUCT | |
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161 void CounterData::print_data_on(outputStream* st, const char* extra) const { |
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162 print_shared(st, "CounterData", extra); |
| 0 | 163 st->print_cr("count(%u)", count()); |
| 164 } | |
| 165 #endif // !PRODUCT | |
| 166 | |
| 167 // ================================================================== | |
| 168 // JumpData | |
| 169 // | |
| 170 // A JumpData is used to access profiling information for a direct | |
| 171 // branch. It is a counter, used for counting the number of branches, | |
| 172 // plus a data displacement, used for realigning the data pointer to | |
| 173 // the corresponding target bci. | |
| 174 | |
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175 void JumpData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
| 0 | 176 assert(stream->bci() == bci(), "wrong pos"); |
| 177 int target; | |
| 178 Bytecodes::Code c = stream->code(); | |
| 179 if (c == Bytecodes::_goto_w || c == Bytecodes::_jsr_w) { | |
| 180 target = stream->dest_w(); | |
| 181 } else { | |
| 182 target = stream->dest(); | |
| 183 } | |
| 184 int my_di = mdo->dp_to_di(dp()); | |
| 185 int target_di = mdo->bci_to_di(target); | |
| 186 int offset = target_di - my_di; | |
| 187 set_displacement(offset); | |
| 188 } | |
| 189 | |
| 190 #ifndef PRODUCT | |
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191 void JumpData::print_data_on(outputStream* st, const char* extra) const { |
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192 print_shared(st, "JumpData", extra); |
| 0 | 193 st->print_cr("taken(%u) displacement(%d)", taken(), displacement()); |
| 194 } | |
| 195 #endif // !PRODUCT | |
| 196 | |
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197 int TypeStackSlotEntries::compute_cell_count(Symbol* signature, bool include_receiver, int max) { |
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198 // Parameter profiling include the receiver |
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199 int args_count = include_receiver ? 1 : 0; |
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200 ResourceMark rm; |
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201 SignatureStream ss(signature); |
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202 args_count += ss.reference_parameter_count(); |
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203 args_count = MIN2(args_count, max); |
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204 return args_count * per_arg_cell_count; |
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205 } |
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206 |
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207 int TypeEntriesAtCall::compute_cell_count(BytecodeStream* stream) { |
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208 assert(Bytecodes::is_invoke(stream->code()), "should be invoke"); |
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209 assert(TypeStackSlotEntries::per_arg_count() > ReturnTypeEntry::static_cell_count(), "code to test for arguments/results broken"); |
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210 Bytecode_invoke inv(stream->method(), stream->bci()); |
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211 int args_cell = 0; |
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212 if (arguments_profiling_enabled()) { |
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213 args_cell = TypeStackSlotEntries::compute_cell_count(inv.signature(), false, TypeProfileArgsLimit); |
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214 } |
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215 int ret_cell = 0; |
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216 if (return_profiling_enabled() && (inv.result_type() == T_OBJECT || inv.result_type() == T_ARRAY)) { |
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217 ret_cell = ReturnTypeEntry::static_cell_count(); |
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218 } |
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219 int header_cell = 0; |
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220 if (args_cell + ret_cell > 0) { |
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221 header_cell = header_cell_count(); |
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222 } |
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223 |
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224 return header_cell + args_cell + ret_cell; |
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225 } |
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226 |
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227 class ArgumentOffsetComputer : public SignatureInfo { |
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228 private: |
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229 int _max; |
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230 GrowableArray<int> _offsets; |
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231 |
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232 void set(int size, BasicType type) { _size += size; } |
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233 void do_object(int begin, int end) { |
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234 if (_offsets.length() < _max) { |
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235 _offsets.push(_size); |
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236 } |
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237 SignatureInfo::do_object(begin, end); |
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238 } |
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239 void do_array (int begin, int end) { |
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240 if (_offsets.length() < _max) { |
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241 _offsets.push(_size); |
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242 } |
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243 SignatureInfo::do_array(begin, end); |
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244 } |
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245 |
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246 public: |
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247 ArgumentOffsetComputer(Symbol* signature, int max) |
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248 : SignatureInfo(signature), _max(max), _offsets(Thread::current(), max) { |
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249 } |
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250 |
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251 int total() { lazy_iterate_parameters(); return _size; } |
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252 |
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253 int off_at(int i) const { return _offsets.at(i); } |
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254 }; |
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255 |
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256 void TypeStackSlotEntries::post_initialize(Symbol* signature, bool has_receiver, bool include_receiver) { |
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257 ResourceMark rm; |
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258 int start = 0; |
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259 // Parameter profiling include the receiver |
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260 if (include_receiver && has_receiver) { |
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261 set_stack_slot(0, 0); |
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262 set_type(0, type_none()); |
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263 start += 1; |
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264 } |
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265 ArgumentOffsetComputer aos(signature, _number_of_entries-start); |
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266 aos.total(); |
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267 for (int i = start; i < _number_of_entries; i++) { |
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268 set_stack_slot(i, aos.off_at(i-start) + (has_receiver ? 1 : 0)); |
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269 set_type(i, type_none()); |
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270 } |
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271 } |
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272 |
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273 void CallTypeData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
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274 assert(Bytecodes::is_invoke(stream->code()), "should be invoke"); |
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275 Bytecode_invoke inv(stream->method(), stream->bci()); |
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276 |
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277 SignatureStream ss(inv.signature()); |
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278 if (has_arguments()) { |
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279 #ifdef ASSERT |
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280 ResourceMark rm; |
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281 int count = MIN2(ss.reference_parameter_count(), (int)TypeProfileArgsLimit); |
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282 assert(count > 0, "room for args type but none found?"); |
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283 check_number_of_arguments(count); |
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284 #endif |
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285 _args.post_initialize(inv.signature(), inv.has_receiver(), false); |
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286 } |
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287 |
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288 if (has_return()) { |
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289 assert(inv.result_type() == T_OBJECT || inv.result_type() == T_ARRAY, "room for a ret type but doesn't return obj?"); |
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290 _ret.post_initialize(); |
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291 } |
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292 } |
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293 |
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294 void VirtualCallTypeData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
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295 assert(Bytecodes::is_invoke(stream->code()), "should be invoke"); |
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296 Bytecode_invoke inv(stream->method(), stream->bci()); |
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297 |
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298 if (has_arguments()) { |
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299 #ifdef ASSERT |
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300 ResourceMark rm; |
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301 SignatureStream ss(inv.signature()); |
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302 int count = MIN2(ss.reference_parameter_count(), (int)TypeProfileArgsLimit); |
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303 assert(count > 0, "room for args type but none found?"); |
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304 check_number_of_arguments(count); |
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305 #endif |
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306 _args.post_initialize(inv.signature(), inv.has_receiver(), false); |
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307 } |
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308 |
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309 if (has_return()) { |
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310 assert(inv.result_type() == T_OBJECT || inv.result_type() == T_ARRAY, "room for a ret type but doesn't return obj?"); |
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311 _ret.post_initialize(); |
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312 } |
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313 } |
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314 |
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315 bool TypeEntries::is_loader_alive(BoolObjectClosure* is_alive_cl, intptr_t p) { |
| 13080 | 316 Klass* k = (Klass*)klass_part(p); |
| 317 return k != NULL && k->is_loader_alive(is_alive_cl); | |
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318 } |
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319 |
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320 void TypeStackSlotEntries::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) { |
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321 for (int i = 0; i < _number_of_entries; i++) { |
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322 intptr_t p = type(i); |
| 13080 | 323 if (!is_loader_alive(is_alive_cl, p)) { |
| 324 set_type(i, with_status((Klass*)NULL, p)); | |
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325 } |
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326 } |
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327 } |
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328 |
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329 void ReturnTypeEntry::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) { |
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330 intptr_t p = type(); |
| 13080 | 331 if (!is_loader_alive(is_alive_cl, p)) { |
| 332 set_type(with_status((Klass*)NULL, p)); | |
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333 } |
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334 } |
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335 |
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336 bool TypeEntriesAtCall::return_profiling_enabled() { |
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337 return MethodData::profile_return(); |
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338 } |
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339 |
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340 bool TypeEntriesAtCall::arguments_profiling_enabled() { |
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341 return MethodData::profile_arguments(); |
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342 } |
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343 |
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344 #ifndef PRODUCT |
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345 void TypeEntries::print_klass(outputStream* st, intptr_t k) { |
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346 if (is_type_none(k)) { |
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347 st->print("none"); |
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348 } else if (is_type_unknown(k)) { |
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349 st->print("unknown"); |
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350 } else { |
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351 valid_klass(k)->print_value_on(st); |
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352 } |
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353 if (was_null_seen(k)) { |
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354 st->print(" (null seen)"); |
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355 } |
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356 } |
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357 |
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358 void TypeStackSlotEntries::print_data_on(outputStream* st) const { |
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359 for (int i = 0; i < _number_of_entries; i++) { |
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360 _pd->tab(st); |
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361 st->print("%d: stack(%u) ", i, stack_slot(i)); |
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362 print_klass(st, type(i)); |
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363 st->cr(); |
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364 } |
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365 } |
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366 |
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367 void ReturnTypeEntry::print_data_on(outputStream* st) const { |
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368 _pd->tab(st); |
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369 print_klass(st, type()); |
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370 st->cr(); |
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371 } |
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372 |
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373 void CallTypeData::print_data_on(outputStream* st, const char* extra) const { |
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374 CounterData::print_data_on(st, extra); |
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375 if (has_arguments()) { |
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376 tab(st, true); |
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377 st->print("argument types"); |
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378 _args.print_data_on(st); |
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379 } |
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380 if (has_return()) { |
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381 tab(st, true); |
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382 st->print("return type"); |
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383 _ret.print_data_on(st); |
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384 } |
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385 } |
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386 |
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387 void VirtualCallTypeData::print_data_on(outputStream* st, const char* extra) const { |
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388 VirtualCallData::print_data_on(st, extra); |
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389 if (has_arguments()) { |
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390 tab(st, true); |
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391 st->print("argument types"); |
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392 _args.print_data_on(st); |
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393 } |
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394 if (has_return()) { |
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395 tab(st, true); |
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396 st->print("return type"); |
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397 _ret.print_data_on(st); |
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398 } |
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399 } |
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400 #endif |
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401 |
| 0 | 402 // ================================================================== |
| 403 // ReceiverTypeData | |
| 404 // | |
| 405 // A ReceiverTypeData is used to access profiling information about a | |
| 406 // dynamic type check. It consists of a counter which counts the total times | |
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407 // that the check is reached, and a series of (Klass*, count) pairs |
| 0 | 408 // which are used to store a type profile for the receiver of the check. |
| 409 | |
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410 void ReceiverTypeData::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) { |
| 941 | 411 for (uint row = 0; row < row_limit(); row++) { |
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412 Klass* p = receiver(row); |
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413 if (p != NULL && !p->is_loader_alive(is_alive_cl)) { |
| 941 | 414 clear_row(row); |
| 415 } | |
| 416 } | |
| 417 } | |
| 418 | |
| 9765 | 419 #ifdef GRAAL |
| 420 void VirtualCallData::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) { | |
| 421 ReceiverTypeData::clean_weak_klass_links(is_alive_cl); | |
| 422 for (uint row = 0; row < method_row_limit(); row++) { | |
| 423 Method* p = method(row); | |
| 424 if (p != NULL && !p->method_holder()->is_loader_alive(is_alive_cl)) { | |
| 425 clear_method_row(row); | |
| 426 } | |
| 427 } | |
| 428 } | |
| 429 #endif // GRAAL | |
| 430 | |
| 0 | 431 #ifndef PRODUCT |
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432 void ReceiverTypeData::print_receiver_data_on(outputStream* st) const { |
| 0 | 433 uint row; |
| 434 int entries = 0; | |
| 435 for (row = 0; row < row_limit(); row++) { | |
| 436 if (receiver(row) != NULL) entries++; | |
| 437 } | |
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438 #ifdef GRAAL |
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439 st->print_cr("count(%u) nonprofiled_count(%u) entries(%u)", count(), nonprofiled_count(), entries); |
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440 #else |
| 0 | 441 st->print_cr("count(%u) entries(%u)", count(), entries); |
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442 #endif |
| 1783 | 443 int total = count(); |
| 444 for (row = 0; row < row_limit(); row++) { | |
| 445 if (receiver(row) != NULL) { | |
| 446 total += receiver_count(row); | |
| 447 } | |
| 448 } | |
| 0 | 449 for (row = 0; row < row_limit(); row++) { |
| 450 if (receiver(row) != NULL) { | |
| 451 tab(st); | |
| 452 receiver(row)->print_value_on(st); | |
| 1783 | 453 st->print_cr("(%u %4.2f)", receiver_count(row), (float) receiver_count(row) / (float) total); |
| 0 | 454 } |
| 455 } | |
| 456 } | |
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457 void ReceiverTypeData::print_data_on(outputStream* st, const char* extra) const { |
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458 print_shared(st, "ReceiverTypeData", extra); |
| 0 | 459 print_receiver_data_on(st); |
| 460 } | |
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461 |
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462 #ifdef GRAAL |
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463 void VirtualCallData::print_method_data_on(outputStream* st) const { |
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464 uint row; |
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465 int entries = 0; |
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466 for (row = 0; row < method_row_limit(); row++) { |
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467 if (method(row) != NULL) entries++; |
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468 } |
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469 tab(st); |
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470 st->print_cr("method_entries(%u)", entries); |
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471 int total = count(); |
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472 for (row = 0; row < method_row_limit(); row++) { |
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473 if (method(row) != NULL) { |
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474 total += method_count(row); |
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475 } |
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476 } |
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477 for (row = 0; row < method_row_limit(); row++) { |
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478 if (method(row) != NULL) { |
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479 tab(st); |
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480 method(row)->print_value_on(st); |
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481 st->print_cr("(%u %4.2f)", method_count(row), (float) method_count(row) / (float) total); |
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482 } |
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483 } |
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484 } |
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485 #endif |
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486 |
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487 void VirtualCallData::print_data_on(outputStream* st, const char* extra) const { |
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488 print_shared(st, "VirtualCallData", extra); |
| 0 | 489 print_receiver_data_on(st); |
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490 #ifdef GRAAL |
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491 print_method_data_on(st); |
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492 #endif |
| 0 | 493 } |
| 494 #endif // !PRODUCT | |
| 495 | |
| 496 // ================================================================== | |
| 497 // RetData | |
| 498 // | |
| 499 // A RetData is used to access profiling information for a ret bytecode. | |
| 500 // It is composed of a count of the number of times that the ret has | |
| 501 // been executed, followed by a series of triples of the form | |
| 502 // (bci, count, di) which count the number of times that some bci was the | |
| 503 // target of the ret and cache a corresponding displacement. | |
| 504 | |
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505 void RetData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
| 0 | 506 for (uint row = 0; row < row_limit(); row++) { |
| 507 set_bci_displacement(row, -1); | |
| 508 set_bci(row, no_bci); | |
| 509 } | |
| 510 // release so other threads see a consistent state. bci is used as | |
| 511 // a valid flag for bci_displacement. | |
| 512 OrderAccess::release(); | |
| 513 } | |
| 514 | |
| 515 // This routine needs to atomically update the RetData structure, so the | |
| 516 // caller needs to hold the RetData_lock before it gets here. Since taking | |
| 517 // the lock can block (and allow GC) and since RetData is a ProfileData is a | |
| 518 // wrapper around a derived oop, taking the lock in _this_ method will | |
| 519 // basically cause the 'this' pointer's _data field to contain junk after the | |
| 520 // lock. We require the caller to take the lock before making the ProfileData | |
| 521 // structure. Currently the only caller is InterpreterRuntime::update_mdp_for_ret | |
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522 address RetData::fixup_ret(int return_bci, MethodData* h_mdo) { |
| 0 | 523 // First find the mdp which corresponds to the return bci. |
| 524 address mdp = h_mdo->bci_to_dp(return_bci); | |
| 525 | |
| 526 // Now check to see if any of the cache slots are open. | |
| 527 for (uint row = 0; row < row_limit(); row++) { | |
| 528 if (bci(row) == no_bci) { | |
| 529 set_bci_displacement(row, mdp - dp()); | |
| 530 set_bci_count(row, DataLayout::counter_increment); | |
| 531 // Barrier to ensure displacement is written before the bci; allows | |
| 532 // the interpreter to read displacement without fear of race condition. | |
| 533 release_set_bci(row, return_bci); | |
| 534 break; | |
| 535 } | |
| 536 } | |
| 537 return mdp; | |
| 538 } | |
| 539 | |
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540 #ifdef CC_INTERP |
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541 DataLayout* RetData::advance(MethodData *md, int bci) { |
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542 return (DataLayout*) md->bci_to_dp(bci); |
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543 } |
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544 #endif // CC_INTERP |
| 0 | 545 |
| 546 #ifndef PRODUCT | |
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547 void RetData::print_data_on(outputStream* st, const char* extra) const { |
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548 print_shared(st, "RetData", extra); |
| 0 | 549 uint row; |
| 550 int entries = 0; | |
| 551 for (row = 0; row < row_limit(); row++) { | |
| 552 if (bci(row) != no_bci) entries++; | |
| 553 } | |
| 554 st->print_cr("count(%u) entries(%u)", count(), entries); | |
| 555 for (row = 0; row < row_limit(); row++) { | |
| 556 if (bci(row) != no_bci) { | |
| 557 tab(st); | |
| 558 st->print_cr("bci(%d: count(%u) displacement(%d))", | |
| 559 bci(row), bci_count(row), bci_displacement(row)); | |
| 560 } | |
| 561 } | |
| 562 } | |
| 563 #endif // !PRODUCT | |
| 564 | |
| 565 // ================================================================== | |
| 566 // BranchData | |
| 567 // | |
| 568 // A BranchData is used to access profiling data for a two-way branch. | |
| 569 // It consists of taken and not_taken counts as well as a data displacement | |
| 570 // for the taken case. | |
| 571 | |
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572 void BranchData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
| 0 | 573 assert(stream->bci() == bci(), "wrong pos"); |
| 574 int target = stream->dest(); | |
| 575 int my_di = mdo->dp_to_di(dp()); | |
| 576 int target_di = mdo->bci_to_di(target); | |
| 577 int offset = target_di - my_di; | |
| 578 set_displacement(offset); | |
| 579 } | |
| 580 | |
| 581 #ifndef PRODUCT | |
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582 void BranchData::print_data_on(outputStream* st, const char* extra) const { |
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583 print_shared(st, "BranchData", extra); |
| 0 | 584 st->print_cr("taken(%u) displacement(%d)", |
| 585 taken(), displacement()); | |
| 586 tab(st); | |
| 587 st->print_cr("not taken(%u)", not_taken()); | |
| 588 } | |
| 589 #endif | |
| 590 | |
| 591 // ================================================================== | |
| 592 // MultiBranchData | |
| 593 // | |
| 594 // A MultiBranchData is used to access profiling information for | |
| 595 // a multi-way branch (*switch bytecodes). It consists of a series | |
| 596 // of (count, displacement) pairs, which count the number of times each | |
| 597 // case was taken and specify the data displacment for each branch target. | |
| 598 | |
| 599 int MultiBranchData::compute_cell_count(BytecodeStream* stream) { | |
| 600 int cell_count = 0; | |
| 601 if (stream->code() == Bytecodes::_tableswitch) { | |
| 2142 | 602 Bytecode_tableswitch sw(stream->method()(), stream->bcp()); |
| 603 cell_count = 1 + per_case_cell_count * (1 + sw.length()); // 1 for default | |
| 0 | 604 } else { |
| 2142 | 605 Bytecode_lookupswitch sw(stream->method()(), stream->bcp()); |
| 606 cell_count = 1 + per_case_cell_count * (sw.number_of_pairs() + 1); // 1 for default | |
| 0 | 607 } |
| 608 return cell_count; | |
| 609 } | |
| 610 | |
| 611 void MultiBranchData::post_initialize(BytecodeStream* stream, | |
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612 MethodData* mdo) { |
| 0 | 613 assert(stream->bci() == bci(), "wrong pos"); |
| 614 int target; | |
| 615 int my_di; | |
| 616 int target_di; | |
| 617 int offset; | |
| 618 if (stream->code() == Bytecodes::_tableswitch) { | |
| 2142 | 619 Bytecode_tableswitch sw(stream->method()(), stream->bcp()); |
| 620 int len = sw.length(); | |
| 0 | 621 assert(array_len() == per_case_cell_count * (len + 1), "wrong len"); |
| 622 for (int count = 0; count < len; count++) { | |
| 2142 | 623 target = sw.dest_offset_at(count) + bci(); |
| 0 | 624 my_di = mdo->dp_to_di(dp()); |
| 625 target_di = mdo->bci_to_di(target); | |
| 626 offset = target_di - my_di; | |
| 627 set_displacement_at(count, offset); | |
| 628 } | |
| 2142 | 629 target = sw.default_offset() + bci(); |
| 0 | 630 my_di = mdo->dp_to_di(dp()); |
| 631 target_di = mdo->bci_to_di(target); | |
| 632 offset = target_di - my_di; | |
| 633 set_default_displacement(offset); | |
| 634 | |
| 635 } else { | |
| 2142 | 636 Bytecode_lookupswitch sw(stream->method()(), stream->bcp()); |
| 637 int npairs = sw.number_of_pairs(); | |
| 0 | 638 assert(array_len() == per_case_cell_count * (npairs + 1), "wrong len"); |
| 639 for (int count = 0; count < npairs; count++) { | |
| 2142 | 640 LookupswitchPair pair = sw.pair_at(count); |
| 641 target = pair.offset() + bci(); | |
| 0 | 642 my_di = mdo->dp_to_di(dp()); |
| 643 target_di = mdo->bci_to_di(target); | |
| 644 offset = target_di - my_di; | |
| 645 set_displacement_at(count, offset); | |
| 646 } | |
| 2142 | 647 target = sw.default_offset() + bci(); |
| 0 | 648 my_di = mdo->dp_to_di(dp()); |
| 649 target_di = mdo->bci_to_di(target); | |
| 650 offset = target_di - my_di; | |
| 651 set_default_displacement(offset); | |
| 652 } | |
| 653 } | |
| 654 | |
| 655 #ifndef PRODUCT | |
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656 void MultiBranchData::print_data_on(outputStream* st, const char* extra) const { |
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657 print_shared(st, "MultiBranchData", extra); |
| 0 | 658 st->print_cr("default_count(%u) displacement(%d)", |
| 659 default_count(), default_displacement()); | |
| 660 int cases = number_of_cases(); | |
| 661 for (int i = 0; i < cases; i++) { | |
| 662 tab(st); | |
| 663 st->print_cr("count(%u) displacement(%d)", | |
| 664 count_at(i), displacement_at(i)); | |
| 665 } | |
| 666 } | |
| 667 #endif | |
| 668 | |
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669 #ifndef PRODUCT |
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670 void ArgInfoData::print_data_on(outputStream* st, const char* extra) const { |
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671 print_shared(st, "ArgInfoData", extra); |
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672 int nargs = number_of_args(); |
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673 for (int i = 0; i < nargs; i++) { |
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674 st->print(" 0x%x", arg_modified(i)); |
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675 } |
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676 st->cr(); |
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677 } |
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678 |
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679 #endif |
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680 |
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681 int ParametersTypeData::compute_cell_count(Method* m) { |
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682 if (!MethodData::profile_parameters_for_method(m)) { |
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683 return 0; |
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684 } |
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685 int max = TypeProfileParmsLimit == -1 ? INT_MAX : TypeProfileParmsLimit; |
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686 int obj_args = TypeStackSlotEntries::compute_cell_count(m->signature(), !m->is_static(), max); |
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687 if (obj_args > 0) { |
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688 return obj_args + 1; // 1 cell for array len |
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689 } |
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690 return 0; |
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691 } |
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692 |
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693 void ParametersTypeData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
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694 _parameters.post_initialize(mdo->method()->signature(), !mdo->method()->is_static(), true); |
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695 } |
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696 |
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697 bool ParametersTypeData::profiling_enabled() { |
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698 return MethodData::profile_parameters(); |
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699 } |
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700 |
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701 #ifndef PRODUCT |
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702 void ParametersTypeData::print_data_on(outputStream* st, const char* extra) const { |
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703 st->print("parameter types", extra); |
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704 _parameters.print_data_on(st); |
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705 } |
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706 |
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707 void SpeculativeTrapData::print_data_on(outputStream* st, const char* extra) const { |
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708 print_shared(st, "SpeculativeTrapData", extra); |
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709 tab(st); |
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710 method()->print_short_name(st); |
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711 st->cr(); |
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712 } |
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713 #endif |
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714 |
| 0 | 715 // ================================================================== |
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716 // MethodData* |
| 0 | 717 // |
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718 // A MethodData* holds information which has been collected about |
| 0 | 719 // a method. |
| 720 | |
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721 MethodData* MethodData::allocate(ClassLoaderData* loader_data, methodHandle method, TRAPS) { |
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722 int size = MethodData::compute_allocation_size_in_words(method); |
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723 |
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724 return new (loader_data, size, false, MetaspaceObj::MethodDataType, THREAD) |
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725 MethodData(method(), size, CHECK_NULL); |
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726 } |
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727 |
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728 int MethodData::bytecode_cell_count(Bytecodes::Code code) { |
| 8883 | 729 #if defined(COMPILER1) && !(defined(COMPILER2) || defined(GRAAL)) |
| 8860 | 730 return no_profile_data; |
| 731 #else | |
| 0 | 732 switch (code) { |
| 733 case Bytecodes::_checkcast: | |
| 734 case Bytecodes::_instanceof: | |
| 735 case Bytecodes::_aastore: | |
| 736 if (TypeProfileCasts) { | |
| 737 return ReceiverTypeData::static_cell_count(); | |
| 738 } else { | |
| 739 return BitData::static_cell_count(); | |
| 740 } | |
| 741 case Bytecodes::_invokespecial: | |
| 742 case Bytecodes::_invokestatic: | |
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743 if (MethodData::profile_arguments() || MethodData::profile_return()) { |
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744 return variable_cell_count; |
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745 } else { |
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746 return CounterData::static_cell_count(); |
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747 } |
| 0 | 748 case Bytecodes::_goto: |
| 749 case Bytecodes::_goto_w: | |
| 750 case Bytecodes::_jsr: | |
| 751 case Bytecodes::_jsr_w: | |
| 752 return JumpData::static_cell_count(); | |
| 753 case Bytecodes::_invokevirtual: | |
| 754 case Bytecodes::_invokeinterface: | |
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755 if (MethodData::profile_arguments() || MethodData::profile_return()) { |
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756 return variable_cell_count; |
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757 } else { |
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758 return VirtualCallData::static_cell_count(); |
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759 } |
|
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760 case Bytecodes::_invokedynamic: |
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761 if (MethodData::profile_arguments() || MethodData::profile_return()) { |
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762 return variable_cell_count; |
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763 } else { |
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764 return CounterData::static_cell_count(); |
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765 } |
| 0 | 766 case Bytecodes::_ret: |
| 767 return RetData::static_cell_count(); | |
| 768 case Bytecodes::_ifeq: | |
| 769 case Bytecodes::_ifne: | |
| 770 case Bytecodes::_iflt: | |
| 771 case Bytecodes::_ifge: | |
| 772 case Bytecodes::_ifgt: | |
| 773 case Bytecodes::_ifle: | |
| 774 case Bytecodes::_if_icmpeq: | |
| 775 case Bytecodes::_if_icmpne: | |
| 776 case Bytecodes::_if_icmplt: | |
| 777 case Bytecodes::_if_icmpge: | |
| 778 case Bytecodes::_if_icmpgt: | |
| 779 case Bytecodes::_if_icmple: | |
| 780 case Bytecodes::_if_acmpeq: | |
| 781 case Bytecodes::_if_acmpne: | |
| 782 case Bytecodes::_ifnull: | |
| 783 case Bytecodes::_ifnonnull: | |
| 784 return BranchData::static_cell_count(); | |
| 785 case Bytecodes::_lookupswitch: | |
| 786 case Bytecodes::_tableswitch: | |
| 787 return variable_cell_count; | |
| 788 } | |
| 789 return no_profile_data; | |
| 8860 | 790 #endif |
| 0 | 791 } |
| 792 | |
| 793 // Compute the size of the profiling information corresponding to | |
| 794 // the current bytecode. | |
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795 int MethodData::compute_data_size(BytecodeStream* stream) { |
| 0 | 796 int cell_count = bytecode_cell_count(stream->code()); |
| 797 if (cell_count == no_profile_data) { | |
| 798 return 0; | |
| 799 } | |
| 800 if (cell_count == variable_cell_count) { | |
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801 switch (stream->code()) { |
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802 case Bytecodes::_lookupswitch: |
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803 case Bytecodes::_tableswitch: |
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804 cell_count = MultiBranchData::compute_cell_count(stream); |
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805 break; |
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806 case Bytecodes::_invokespecial: |
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807 case Bytecodes::_invokestatic: |
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|
808 case Bytecodes::_invokedynamic: |
|
12882
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8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
809 assert(MethodData::profile_arguments() || MethodData::profile_return(), "should be collecting args profile"); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
810 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
811 profile_return_for_invoke(stream->method(), stream->bci())) { |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
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10376
diff
changeset
|
812 cell_count = CallTypeData::compute_cell_count(stream); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
813 } else { |
|
d13d7aba8c12
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diff
changeset
|
814 cell_count = CounterData::static_cell_count(); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
815 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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diff
changeset
|
816 break; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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diff
changeset
|
817 case Bytecodes::_invokevirtual: |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
818 case Bytecodes::_invokeinterface: { |
|
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
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parents:
12875
diff
changeset
|
819 assert(MethodData::profile_arguments() || MethodData::profile_return(), "should be collecting args profile"); |
|
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8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
820 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
821 profile_return_for_invoke(stream->method(), stream->bci())) { |
|
12875
d13d7aba8c12
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roland
parents:
10376
diff
changeset
|
822 cell_count = VirtualCallTypeData::compute_cell_count(stream); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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10376
diff
changeset
|
823 } else { |
|
d13d7aba8c12
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10376
diff
changeset
|
824 cell_count = VirtualCallData::static_cell_count(); |
|
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8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
825 } |
|
d13d7aba8c12
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roland
parents:
10376
diff
changeset
|
826 break; |
|
d13d7aba8c12
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roland
parents:
10376
diff
changeset
|
827 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
828 default: |
|
d13d7aba8c12
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diff
changeset
|
829 fatal("unexpected bytecode for var length profile data"); |
|
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|
830 } |
| 0 | 831 } |
| 832 // Note: cell_count might be zero, meaning that there is just | |
| 833 // a DataLayout header, with no extra cells. | |
| 834 assert(cell_count >= 0, "sanity"); | |
| 835 return DataLayout::compute_size_in_bytes(cell_count); | |
| 836 } | |
| 837 | |
|
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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14435
diff
changeset
|
838 bool MethodData::is_speculative_trap_bytecode(Bytecodes::Code code) { |
|
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roland
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diff
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|
839 // Bytecodes for which we may use speculation |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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|
840 switch (code) { |
|
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roland
parents:
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|
841 case Bytecodes::_checkcast: |
|
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diff
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|
842 case Bytecodes::_instanceof: |
|
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roland
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diff
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|
843 case Bytecodes::_aastore: |
|
fdad2932c73f
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roland
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diff
changeset
|
844 case Bytecodes::_invokevirtual: |
|
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diff
changeset
|
845 case Bytecodes::_invokeinterface: |
|
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roland
parents:
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diff
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|
846 case Bytecodes::_if_acmpeq: |
|
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8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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diff
changeset
|
847 case Bytecodes::_if_acmpne: |
|
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8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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|
848 case Bytecodes::_invokestatic: |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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diff
changeset
|
849 #ifdef COMPILER2 |
|
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8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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|
850 return UseTypeSpeculation; |
|
fdad2932c73f
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roland
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diff
changeset
|
851 #endif |
|
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roland
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changeset
|
852 default: |
|
fdad2932c73f
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roland
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14435
diff
changeset
|
853 return false; |
|
fdad2932c73f
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roland
parents:
14435
diff
changeset
|
854 } |
|
fdad2932c73f
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roland
parents:
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diff
changeset
|
855 return false; |
|
fdad2932c73f
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roland
parents:
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diff
changeset
|
856 } |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
857 |
|
8616
d343737786fe
changed profiling of exceptions so that the ExceptionSeen flag also works without GRAALVM
Christian Haeubl <haeubl@ssw.jku.at>
parents:
8615
diff
changeset
|
858 #ifdef GRAAL |
| 14518 | 859 int MethodData::compute_extra_data_count(int data_size, int empty_bc_count, bool needs_speculative_traps) { |
|
4568
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better allocation of methodData's extraData so that exceptions and deoptimizations can be recorded more accurately
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4439
diff
changeset
|
860 if (!ProfileTraps) return 0; |
|
8e1d9c27989a
better allocation of methodData's extraData so that exceptions and deoptimizations can be recorded more accurately
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4439
diff
changeset
|
861 |
|
8e1d9c27989a
better allocation of methodData's extraData so that exceptions and deoptimizations can be recorded more accurately
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4439
diff
changeset
|
862 // Assume that up to 30% of the possibly trapping BCIs with no MDP will need to allocate one. |
|
8e1d9c27989a
better allocation of methodData's extraData so that exceptions and deoptimizations can be recorded more accurately
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4439
diff
changeset
|
863 return MIN2(empty_bc_count, MAX2(4, (empty_bc_count * 30) / 100)); |
|
8e1d9c27989a
better allocation of methodData's extraData so that exceptions and deoptimizations can be recorded more accurately
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4439
diff
changeset
|
864 } |
|
8e1d9c27989a
better allocation of methodData's extraData so that exceptions and deoptimizations can be recorded more accurately
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4439
diff
changeset
|
865 #else |
|
14500
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8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
866 int MethodData::compute_extra_data_count(int data_size, int empty_bc_count, bool needs_speculative_traps) { |
| 0 | 867 if (ProfileTraps) { |
| 868 // Assume that up to 3% of BCIs with no MDP will need to allocate one. | |
| 869 int extra_data_count = (uint)(empty_bc_count * 3) / 128 + 1; | |
| 870 // If the method is large, let the extra BCIs grow numerous (to ~1%). | |
| 871 int one_percent_of_data | |
| 872 = (uint)data_size / (DataLayout::header_size_in_bytes()*128); | |
| 873 if (extra_data_count < one_percent_of_data) | |
| 874 extra_data_count = one_percent_of_data; | |
| 875 if (extra_data_count > empty_bc_count) | |
| 876 extra_data_count = empty_bc_count; // no need for more | |
|
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
877 |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
878 // Make sure we have a minimum number of extra data slots to |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
879 // allocate SpeculativeTrapData entries. We would want to have one |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
880 // entry per compilation that inlines this method and for which |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
881 // some type speculation assumption fails. So the room we need for |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
882 // the SpeculativeTrapData entries doesn't directly depend on the |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
883 // size of the method. Because it's hard to estimate, we reserve |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
884 // space for an arbitrary number of entries. |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
885 int spec_data_count = (needs_speculative_traps ? SpecTrapLimitExtraEntries : 0) * |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
886 (SpeculativeTrapData::static_cell_count() + DataLayout::header_size_in_cells()); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
887 |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
888 return MAX2(extra_data_count, spec_data_count); |
| 0 | 889 } else { |
| 890 return 0; | |
| 891 } | |
| 892 } | |
|
4568
8e1d9c27989a
better allocation of methodData's extraData so that exceptions and deoptimizations can be recorded more accurately
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4439
diff
changeset
|
893 #endif |
| 0 | 894 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
2264
diff
changeset
|
895 // Compute the size of the MethodData* necessary to store |
| 0 | 896 // profiling information about a given method. Size is in bytes. |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
2264
diff
changeset
|
897 int MethodData::compute_allocation_size_in_bytes(methodHandle method) { |
| 0 | 898 int data_size = 0; |
| 899 BytecodeStream stream(method); | |
| 900 Bytecodes::Code c; | |
| 901 int empty_bc_count = 0; // number of bytecodes lacking data | |
|
14500
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8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
902 bool needs_speculative_traps = false; |
| 0 | 903 while ((c = stream.next()) >= 0) { |
| 904 int size_in_bytes = compute_data_size(&stream); | |
| 905 data_size += size_in_bytes; | |
|
13181
389d40d7d99f
fixed bug in MethodData and added assertion that precomputed size == initialized size
Doug Simon <doug.simon@oracle.com>
parents:
13108
diff
changeset
|
906 if (size_in_bytes == 0 GRAAL_ONLY(&& Bytecodes::can_trap(c))) empty_bc_count += 1; |
|
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
907 needs_speculative_traps = needs_speculative_traps || is_speculative_trap_bytecode(c); |
| 0 | 908 } |
| 909 int object_size = in_bytes(data_offset()) + data_size; | |
| 910 | |
| 911 // Add some extra DataLayout cells (at least one) to track stray traps. | |
|
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
912 int extra_data_count = compute_extra_data_count(data_size, empty_bc_count, needs_speculative_traps); |
| 0 | 913 object_size += extra_data_count * DataLayout::compute_size_in_bytes(0); |
| 914 | |
|
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
915 // Add a cell to record information about modified arguments. |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
916 int arg_size = method->size_of_parameters(); |
|
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
917 object_size += DataLayout::compute_size_in_bytes(arg_size+1); |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
918 |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
919 // Reserve room for an area of the MDO dedicated to profiling of |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
920 // parameters |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
921 int args_cell = ParametersTypeData::compute_cell_count(method()); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
922 if (args_cell > 0) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
923 object_size += DataLayout::compute_size_in_bytes(args_cell); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
924 } |
| 0 | 925 return object_size; |
| 926 } | |
| 927 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
2264
diff
changeset
|
928 // Compute the size of the MethodData* necessary to store |
| 0 | 929 // profiling information about a given method. Size is in words |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
2264
diff
changeset
|
930 int MethodData::compute_allocation_size_in_words(methodHandle method) { |
| 0 | 931 int byte_size = compute_allocation_size_in_bytes(method); |
| 932 int word_size = align_size_up(byte_size, BytesPerWord) / BytesPerWord; | |
| 933 return align_object_size(word_size); | |
| 934 } | |
| 935 | |
| 936 // Initialize an individual data segment. Returns the size of | |
| 937 // the segment in bytes. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
2264
diff
changeset
|
938 int MethodData::initialize_data(BytecodeStream* stream, |
| 0 | 939 int data_index) { |
| 8883 | 940 #if defined(COMPILER1) && !(defined(COMPILER2) || defined(GRAAL)) |
| 8860 | 941 return 0; |
| 942 #else | |
| 0 | 943 int cell_count = -1; |
| 944 int tag = DataLayout::no_tag; | |
| 945 DataLayout* data_layout = data_layout_at(data_index); | |
| 946 Bytecodes::Code c = stream->code(); | |
| 947 switch (c) { | |
| 948 case Bytecodes::_checkcast: | |
| 949 case Bytecodes::_instanceof: | |
| 950 case Bytecodes::_aastore: | |
| 951 if (TypeProfileCasts) { | |
| 952 cell_count = ReceiverTypeData::static_cell_count(); | |
| 953 tag = DataLayout::receiver_type_data_tag; | |
| 954 } else { | |
| 955 cell_count = BitData::static_cell_count(); | |
| 956 tag = DataLayout::bit_data_tag; | |
| 957 } | |
| 958 break; | |
| 959 case Bytecodes::_invokespecial: | |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
960 case Bytecodes::_invokestatic: { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
961 int counter_data_cell_count = CounterData::static_cell_count(); |
|
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
962 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
963 profile_return_for_invoke(stream->method(), stream->bci())) { |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
964 cell_count = CallTypeData::compute_cell_count(stream); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
965 } else { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
966 cell_count = counter_data_cell_count; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
967 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
968 if (cell_count > counter_data_cell_count) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
969 tag = DataLayout::call_type_data_tag; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
970 } else { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
971 tag = DataLayout::counter_data_tag; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
972 } |
| 0 | 973 break; |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
974 } |
| 0 | 975 case Bytecodes::_goto: |
| 976 case Bytecodes::_goto_w: | |
| 977 case Bytecodes::_jsr: | |
| 978 case Bytecodes::_jsr_w: | |
| 979 cell_count = JumpData::static_cell_count(); | |
| 980 tag = DataLayout::jump_data_tag; | |
| 981 break; | |
| 982 case Bytecodes::_invokevirtual: | |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
983 case Bytecodes::_invokeinterface: { |
|
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984 int virtual_call_data_cell_count = VirtualCallData::static_cell_count(); |
|
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985 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
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986 profile_return_for_invoke(stream->method(), stream->bci())) { |
|
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987 cell_count = VirtualCallTypeData::compute_cell_count(stream); |
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988 } else { |
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989 cell_count = virtual_call_data_cell_count; |
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990 } |
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991 if (cell_count > virtual_call_data_cell_count) { |
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992 tag = DataLayout::virtual_call_type_data_tag; |
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993 } else { |
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994 tag = DataLayout::virtual_call_data_tag; |
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995 } |
| 0 | 996 break; |
|
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997 } |
|
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998 case Bytecodes::_invokedynamic: { |
|
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999 // %%% should make a type profile for any invokedynamic that takes a ref argument |
|
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1000 int counter_data_cell_count = CounterData::static_cell_count(); |
|
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1001 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
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1002 profile_return_for_invoke(stream->method(), stream->bci())) { |
|
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1003 cell_count = CallTypeData::compute_cell_count(stream); |
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1004 } else { |
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1005 cell_count = counter_data_cell_count; |
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1006 } |
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1007 if (cell_count > counter_data_cell_count) { |
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1008 tag = DataLayout::call_type_data_tag; |
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1009 } else { |
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1010 tag = DataLayout::counter_data_tag; |
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1011 } |
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1012 break; |
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1013 } |
| 0 | 1014 case Bytecodes::_ret: |
| 1015 cell_count = RetData::static_cell_count(); | |
| 1016 tag = DataLayout::ret_data_tag; | |
| 1017 break; | |
| 1018 case Bytecodes::_ifeq: | |
| 1019 case Bytecodes::_ifne: | |
| 1020 case Bytecodes::_iflt: | |
| 1021 case Bytecodes::_ifge: | |
| 1022 case Bytecodes::_ifgt: | |
| 1023 case Bytecodes::_ifle: | |
| 1024 case Bytecodes::_if_icmpeq: | |
| 1025 case Bytecodes::_if_icmpne: | |
| 1026 case Bytecodes::_if_icmplt: | |
| 1027 case Bytecodes::_if_icmpge: | |
| 1028 case Bytecodes::_if_icmpgt: | |
| 1029 case Bytecodes::_if_icmple: | |
| 1030 case Bytecodes::_if_acmpeq: | |
| 1031 case Bytecodes::_if_acmpne: | |
| 1032 case Bytecodes::_ifnull: | |
| 1033 case Bytecodes::_ifnonnull: | |
| 1034 cell_count = BranchData::static_cell_count(); | |
| 1035 tag = DataLayout::branch_data_tag; | |
| 1036 break; | |
| 1037 case Bytecodes::_lookupswitch: | |
| 1038 case Bytecodes::_tableswitch: | |
| 1039 cell_count = MultiBranchData::compute_cell_count(stream); | |
| 1040 tag = DataLayout::multi_branch_data_tag; | |
| 1041 break; | |
| 1042 } | |
| 1043 assert(tag == DataLayout::multi_branch_data_tag || | |
|
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1044 ((MethodData::profile_arguments() || MethodData::profile_return()) && |
|
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1045 (tag == DataLayout::call_type_data_tag || |
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1046 tag == DataLayout::counter_data_tag || |
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1047 tag == DataLayout::virtual_call_type_data_tag || |
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1048 tag == DataLayout::virtual_call_data_tag)) || |
| 0 | 1049 cell_count == bytecode_cell_count(c), "cell counts must agree"); |
| 1050 if (cell_count >= 0) { | |
| 1051 assert(tag != DataLayout::no_tag, "bad tag"); | |
| 1052 assert(bytecode_has_profile(c), "agree w/ BHP"); | |
| 1053 data_layout->initialize(tag, stream->bci(), cell_count); | |
| 1054 return DataLayout::compute_size_in_bytes(cell_count); | |
| 1055 } else { | |
| 1056 assert(!bytecode_has_profile(c), "agree w/ !BHP"); | |
| 1057 return 0; | |
| 1058 } | |
| 8860 | 1059 #endif |
| 0 | 1060 } |
| 1061 | |
| 1062 // Get the data at an arbitrary (sort of) data index. | |
|
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1063 ProfileData* MethodData::data_at(int data_index) const { |
| 0 | 1064 if (out_of_bounds(data_index)) { |
| 1065 return NULL; | |
| 1066 } | |
| 1067 DataLayout* data_layout = data_layout_at(data_index); | |
| 941 | 1068 return data_layout->data_in(); |
| 1069 } | |
| 0 | 1070 |
| 941 | 1071 ProfileData* DataLayout::data_in() { |
| 1072 switch (tag()) { | |
| 0 | 1073 case DataLayout::no_tag: |
| 1074 default: | |
| 1075 ShouldNotReachHere(); | |
| 1076 return NULL; | |
| 1077 case DataLayout::bit_data_tag: | |
| 941 | 1078 return new BitData(this); |
| 0 | 1079 case DataLayout::counter_data_tag: |
| 941 | 1080 return new CounterData(this); |
| 0 | 1081 case DataLayout::jump_data_tag: |
| 941 | 1082 return new JumpData(this); |
| 0 | 1083 case DataLayout::receiver_type_data_tag: |
| 941 | 1084 return new ReceiverTypeData(this); |
| 0 | 1085 case DataLayout::virtual_call_data_tag: |
| 941 | 1086 return new VirtualCallData(this); |
| 0 | 1087 case DataLayout::ret_data_tag: |
| 941 | 1088 return new RetData(this); |
| 0 | 1089 case DataLayout::branch_data_tag: |
| 941 | 1090 return new BranchData(this); |
| 0 | 1091 case DataLayout::multi_branch_data_tag: |
| 941 | 1092 return new MultiBranchData(this); |
|
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1093 case DataLayout::arg_info_data_tag: |
| 941 | 1094 return new ArgInfoData(this); |
|
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1095 case DataLayout::call_type_data_tag: |
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1096 return new CallTypeData(this); |
|
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1097 case DataLayout::virtual_call_type_data_tag: |
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1098 return new VirtualCallTypeData(this); |
|
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1099 case DataLayout::parameters_type_data_tag: |
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1100 return new ParametersTypeData(this); |
| 0 | 1101 }; |
| 1102 } | |
| 1103 | |
| 1104 // Iteration over data. | |
|
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1105 ProfileData* MethodData::next_data(ProfileData* current) const { |
| 0 | 1106 int current_index = dp_to_di(current->dp()); |
| 1107 int next_index = current_index + current->size_in_bytes(); | |
| 1108 ProfileData* next = data_at(next_index); | |
| 1109 return next; | |
| 1110 } | |
| 1111 | |
| 1112 // Give each of the data entries a chance to perform specific | |
| 1113 // data initialization. | |
|
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1114 void MethodData::post_initialize(BytecodeStream* stream) { |
| 0 | 1115 ResourceMark rm; |
| 1116 ProfileData* data; | |
| 1117 for (data = first_data(); is_valid(data); data = next_data(data)) { | |
| 1118 stream->set_start(data->bci()); | |
| 1119 stream->next(); | |
| 1120 data->post_initialize(stream, this); | |
| 1121 } | |
|
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1122 if (_parameters_type_data_di != -1) { |
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1123 parameters_type_data()->post_initialize(NULL, this); |
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1124 } |
| 0 | 1125 } |
| 1126 | |
|
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1127 // Initialize the MethodData* corresponding to a given method. |
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1128 MethodData::MethodData(methodHandle method, int size, TRAPS) { |
|
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1129 // Set the method back-pointer. |
|
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1130 _method = method(); |
|
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|
1131 initialize(); |
|
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|
1132 } |
|
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|
1133 |
|
13181
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Doug Simon <doug.simon@oracle.com>
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|
1134 void MethodData::initialize(bool for_reprofile) { |
|
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1135 No_Safepoint_Verifier no_safepoint; // init function atomic wrt GC |
| 0 | 1136 ResourceMark rm; |
| 1783 | 1137 |
|
9080
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|
1138 init(); |
| 0 | 1139 set_creation_mileage(mileage_of(method())); |
| 1140 | |
| 1141 // Go through the bytecodes and allocate and initialize the | |
| 1142 // corresponding data cells. | |
| 1143 int data_size = 0; | |
| 1144 int empty_bc_count = 0; // number of bytecodes lacking data | |
|
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|
1145 _data[0] = 0; // apparently not set below. |
|
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|
1146 BytecodeStream stream(method()); |
| 0 | 1147 Bytecodes::Code c; |
|
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1148 bool needs_speculative_traps = false; |
| 0 | 1149 while ((c = stream.next()) >= 0) { |
| 1150 int size_in_bytes = initialize_data(&stream, data_size); | |
| 1151 data_size += size_in_bytes; | |
|
13181
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Doug Simon <doug.simon@oracle.com>
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|
1152 if (size_in_bytes == 0 GRAAL_ONLY(&& Bytecodes::can_trap(c))) empty_bc_count += 1; |
|
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|
1153 needs_speculative_traps = needs_speculative_traps || is_speculative_trap_bytecode(c); |
| 0 | 1154 } |
| 1155 _data_size = data_size; | |
| 1156 int object_size = in_bytes(data_offset()) + data_size; | |
| 1157 | |
| 1158 // Add some extra DataLayout cells (at least one) to track stray traps. | |
|
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|
1159 int extra_data_count = compute_extra_data_count(data_size, empty_bc_count, needs_speculative_traps); |
|
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1160 int extra_size = extra_data_count * DataLayout::compute_size_in_bytes(0); |
|
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1161 |
| 14518 | 1162 //#ifdef GRAAL |
| 1163 // if (for_reprofile) { | |
| 1164 // // Clear out extra data | |
| 1165 // Copy::zero_to_bytes((HeapWord*) extra_data_base(), extra_size); | |
| 1166 // } | |
| 1167 //#endif | |
|
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1168 // Let's zero the space for the extra data |
|
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1169 Copy::zero_to_bytes(((address)_data) + data_size, extra_size); |
|
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1170 |
|
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1171 // Add a cell to record information about modified arguments. |
|
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1172 // Set up _args_modified array after traps cells so that |
|
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1173 // the code for traps cells works. |
|
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1174 DataLayout *dp = data_layout_at(data_size + extra_size); |
|
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1175 |
| 8615 | 1176 int arg_size = method()->size_of_parameters(); |
|
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1177 dp->initialize(DataLayout::arg_info_data_tag, 0, arg_size+1); |
|
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|
1178 |
|
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|
1179 int arg_data_size = DataLayout::compute_size_in_bytes(arg_size+1); |
|
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|
1180 object_size += extra_size + arg_data_size; |
|
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|
1181 |
|
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|
1182 int parms_cell = ParametersTypeData::compute_cell_count(method()); |
|
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|
1183 // If we are profiling parameters, we reserver an area near the end |
|
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|
1184 // of the MDO after the slots for bytecodes (because there's no bci |
|
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|
1185 // for method entry so they don't fit with the framework for the |
|
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|
1186 // profiling of bytecodes). We store the offset within the MDO of |
|
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|
1187 // this area (or -1 if no parameter is profiled) |
|
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|
1188 if (parms_cell > 0) { |
|
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|
1189 object_size += DataLayout::compute_size_in_bytes(parms_cell); |
|
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|
1190 _parameters_type_data_di = data_size + extra_size + arg_data_size; |
|
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|
1191 DataLayout *dp = data_layout_at(data_size + extra_size + arg_data_size); |
|
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|
1192 dp->initialize(DataLayout::parameters_type_data_tag, 0, parms_cell); |
|
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roland
parents:
12882
diff
changeset
|
1193 } else { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1194 _parameters_type_data_di = -1; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1195 } |
| 0 | 1196 |
| 1197 // Set an initial hint. Don't use set_hint_di() because | |
| 1198 // first_di() may be out of bounds if data_size is 0. | |
| 1199 // In that situation, _hint_di is never used, but at | |
| 1200 // least well-defined. | |
| 1201 _hint_di = first_di(); | |
| 1202 | |
| 1203 post_initialize(&stream); | |
| 1204 | |
|
13181
389d40d7d99f
fixed bug in MethodData and added assertion that precomputed size == initialized size
Doug Simon <doug.simon@oracle.com>
parents:
13108
diff
changeset
|
1205 assert(object_size == compute_allocation_size_in_bytes(methodHandle(_method)), "MethodData: computed size != initialized size"); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
2264
diff
changeset
|
1206 set_size(object_size); |
|
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1207 } |
|
8712
3efdfd6ddbf2
8003553: NPG: metaspace objects should be zeroed in constructors
coleenp
parents:
7956
diff
changeset
|
1208 |
|
9080
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1209 void MethodData::init() { |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1210 _invocation_counter.init(); |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1211 _backedge_counter.init(); |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1212 _invocation_counter_start = 0; |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1213 _backedge_counter_start = 0; |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1214 _num_loops = 0; |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1215 _num_blocks = 0; |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1216 _highest_comp_level = 0; |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1217 _highest_osr_comp_level = 0; |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1218 _would_profile = true; |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1219 |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1220 // Initialize flags and trap history. |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1221 _nof_decompiles = 0; |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1222 _nof_overflow_recompiles = 0; |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1223 _nof_overflow_traps = 0; |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1224 clear_escape_info(); |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1225 assert(sizeof(_trap_hist) % sizeof(HeapWord) == 0, "align"); |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1226 Copy::zero_to_words((HeapWord*) &_trap_hist, |
|
b84fd7d73702
8007288: Additional WB API for compiler's testing
iignatyev
parents:
8860
diff
changeset
|
1227 sizeof(_trap_hist) / sizeof(HeapWord)); |
| 0 | 1228 } |
| 1229 | |
| 1230 // Get a measure of how much mileage the method has on it. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
2264
diff
changeset
|
1231 int MethodData::mileage_of(Method* method) { |
| 0 | 1232 int mileage = 0; |
| 1783 | 1233 if (TieredCompilation) { |
| 1234 mileage = MAX2(method->invocation_count(), method->backedge_count()); | |
| 1235 } else { | |
| 1236 int iic = method->interpreter_invocation_count(); | |
| 1237 if (mileage < iic) mileage = iic; | |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8860
diff
changeset
|
1238 MethodCounters* mcs = method->method_counters(); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8860
diff
changeset
|
1239 if (mcs != NULL) { |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8860
diff
changeset
|
1240 InvocationCounter* ic = mcs->invocation_counter(); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8860
diff
changeset
|
1241 InvocationCounter* bc = mcs->backedge_counter(); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8860
diff
changeset
|
1242 int icval = ic->count(); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8860
diff
changeset
|
1243 if (ic->carry()) icval += CompileThreshold; |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8860
diff
changeset
|
1244 if (mileage < icval) mileage = icval; |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8860
diff
changeset
|
1245 int bcval = bc->count(); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8860
diff
changeset
|
1246 if (bc->carry()) bcval += CompileThreshold; |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8860
diff
changeset
|
1247 if (mileage < bcval) mileage = bcval; |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
8860
diff
changeset
|
1248 } |
| 1783 | 1249 } |
| 0 | 1250 return mileage; |
| 1251 } | |
| 1252 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
2264
diff
changeset
|
1253 bool MethodData::is_mature() const { |
| 1783 | 1254 return CompilationPolicy::policy()->is_mature(_method); |
| 0 | 1255 } |
| 1256 | |
| 1257 // Translate a bci to its corresponding data index (di). | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
2264
diff
changeset
|
1258 address MethodData::bci_to_dp(int bci) { |
| 0 | 1259 ResourceMark rm; |
| 1260 ProfileData* data = data_before(bci); | |
| 1261 ProfileData* prev = NULL; | |
| 1262 for ( ; is_valid(data); data = next_data(data)) { | |
| 1263 if (data->bci() >= bci) { | |
| 1264 if (data->bci() == bci) set_hint_di(dp_to_di(data->dp())); | |
| 1265 else if (prev != NULL) set_hint_di(dp_to_di(prev->dp())); | |
| 1266 return data->dp(); | |
| 1267 } | |
| 1268 prev = data; | |
| 1269 } | |
| 1270 return (address)limit_data_position(); | |
| 1271 } | |
| 1272 | |
| 1273 // Translate a bci to its corresponding data, or NULL. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
2264
diff
changeset
|
1274 ProfileData* MethodData::bci_to_data(int bci) { |
| 0 | 1275 ProfileData* data = data_before(bci); |
| 1276 for ( ; is_valid(data); data = next_data(data)) { | |
| 1277 if (data->bci() == bci) { | |
| 1278 set_hint_di(dp_to_di(data->dp())); | |
| 1279 return data; | |
| 1280 } else if (data->bci() > bci) { | |
| 1281 break; | |
| 1282 } | |
| 1283 } | |
|
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1284 return bci_to_extra_data(bci, NULL, false); |
| 0 | 1285 } |
| 1286 | |
|
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1287 DataLayout* MethodData::next_extra(DataLayout* dp) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1288 int nb_cells = 0; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1289 switch(dp->tag()) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1290 case DataLayout::bit_data_tag: |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1291 case DataLayout::no_tag: |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1292 nb_cells = BitData::static_cell_count(); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1293 break; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1294 case DataLayout::speculative_trap_data_tag: |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1295 nb_cells = SpeculativeTrapData::static_cell_count(); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1296 break; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1297 default: |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1298 fatal(err_msg("unexpected tag %d", dp->tag())); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1299 } |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1300 return (DataLayout*)((address)dp + DataLayout::compute_size_in_bytes(nb_cells)); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1301 } |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1302 |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1303 ProfileData* MethodData::bci_to_extra_data_helper(int bci, Method* m, DataLayout*& dp) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1304 DataLayout* end = extra_data_limit(); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1305 |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1306 for (;; dp = next_extra(dp)) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1307 assert(dp < end, "moved past end of extra data"); |
| 0 | 1308 // No need for "OrderAccess::load_acquire" ops, |
| 1309 // since the data structure is monotonic. | |
|
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1310 switch(dp->tag()) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1311 case DataLayout::no_tag: |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1312 return NULL; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1313 case DataLayout::arg_info_data_tag: |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1314 dp = end; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1315 return NULL; // ArgInfoData is at the end of extra data section. |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1316 case DataLayout::bit_data_tag: |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1317 if (m == NULL && dp->bci() == bci) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1318 return new BitData(dp); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1319 } |
|
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
1320 break; |
|
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1321 case DataLayout::speculative_trap_data_tag: |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1322 if (m != NULL) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1323 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1324 // data->method() may be null in case of a concurrent |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1325 // allocation. Assume it's for the same method and use that |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1326 // entry in that case. |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1327 if (dp->bci() == bci) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1328 if (data->method() == NULL) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1329 return NULL; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1330 } else if (data->method() == m) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1331 return data; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1332 } |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1333 } |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1334 } |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1335 break; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1336 default: |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1337 fatal(err_msg("unexpected tag %d", dp->tag())); |
| 0 | 1338 } |
| 1339 } | |
|
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1340 return NULL; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1341 } |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1342 |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1343 |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1344 // Translate a bci to its corresponding extra data, or NULL. |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1345 ProfileData* MethodData::bci_to_extra_data(int bci, Method* m, bool create_if_missing) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1346 // This code assumes an entry for a SpeculativeTrapData is 2 cells |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1347 assert(2*DataLayout::compute_size_in_bytes(BitData::static_cell_count()) == |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1348 DataLayout::compute_size_in_bytes(SpeculativeTrapData::static_cell_count()), |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1349 "code needs to be adjusted"); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1350 |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1351 DataLayout* dp = extra_data_base(); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1352 DataLayout* end = extra_data_limit(); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1353 |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1354 // Allocation in the extra data space has to be atomic because not |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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14435
diff
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|
1355 // all entries have the same size and non atomic concurrent |
|
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1356 // allocation would result in a corrupted extra data space. |
|
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1357 while (true) { |
|
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1358 ProfileData* result = bci_to_extra_data_helper(bci, m, dp); |
|
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1359 if (result != NULL) { |
|
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|
1360 return result; |
|
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|
1361 } |
|
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|
1362 |
|
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|
1363 if (create_if_missing && dp < end) { |
|
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1364 assert(dp->tag() == DataLayout::no_tag || (dp->tag() == DataLayout::speculative_trap_data_tag && m != NULL), "should be free"); |
|
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|
1365 assert(next_extra(dp)->tag() == DataLayout::no_tag || next_extra(dp)->tag() == DataLayout::arg_info_data_tag, "should be free or arg info"); |
|
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1366 u1 tag = m == NULL ? DataLayout::bit_data_tag : DataLayout::speculative_trap_data_tag; |
|
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1367 // SpeculativeTrapData is 2 slots. Make sure we have room. |
|
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1368 if (m != NULL && next_extra(dp)->tag() != DataLayout::no_tag) { |
|
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|
1369 return NULL; |
|
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|
1370 } |
|
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|
1371 DataLayout temp; |
|
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|
1372 temp.initialize(tag, bci, 0); |
|
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1373 // May have been set concurrently |
|
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1374 if (dp->header() != temp.header() && !dp->atomic_set_header(temp.header())) { |
|
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1375 // Allocation failure because of concurrent allocation. Try |
|
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1376 // again. |
|
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|
1377 continue; |
|
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|
1378 } |
|
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1379 assert(dp->tag() == tag, "sane"); |
|
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1380 assert(dp->bci() == bci, "no concurrent allocation"); |
|
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1381 if (tag == DataLayout::bit_data_tag) { |
|
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1382 return new BitData(dp); |
|
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1383 } else { |
|
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|
1384 // If being allocated concurrently, one trap may be lost |
|
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1385 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
|
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|
1386 data->set_method(m); |
|
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|
1387 return data; |
|
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|
1388 } |
|
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|
1389 } |
|
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|
1390 return NULL; |
| 0 | 1391 } |
| 1392 return NULL; | |
| 1393 } | |
| 1394 | |
|
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|
1395 ArgInfoData *MethodData::arg_info() { |
|
45
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|
1396 DataLayout* dp = extra_data_base(); |
|
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|
1397 DataLayout* end = extra_data_limit(); |
|
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|
1398 for (; dp < end; dp = next_extra(dp)) { |
|
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1399 if (dp->tag() == DataLayout::arg_info_data_tag) |
|
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|
1400 return new ArgInfoData(dp); |
|
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|
1401 } |
|
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|
1402 return NULL; |
|
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|
1403 } |
|
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|
1404 |
|
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|
1405 // Printing |
|
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|
1406 |
| 0 | 1407 #ifndef PRODUCT |
|
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|
1408 |
|
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|
1409 void MethodData::print_on(outputStream* st) const { |
|
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|
1410 assert(is_methodData(), "should be method data"); |
|
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|
1411 st->print("method data for "); |
|
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|
1412 method()->print_value_on(st); |
|
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|
1413 st->cr(); |
|
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|
1414 print_data_on(st); |
|
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|
1415 } |
|
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|
1416 |
|
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|
1417 #endif //PRODUCT |
|
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|
1418 |
|
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|
1419 void MethodData::print_value_on(outputStream* st) const { |
|
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|
1420 assert(is_methodData(), "should be method data"); |
|
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|
1421 st->print("method data for "); |
|
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|
1422 method()->print_value_on(st); |
|
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|
1423 } |
|
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|
1424 |
|
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|
1425 #ifndef PRODUCT |
|
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|
1426 void MethodData::print_data_on(outputStream* st) const { |
| 0 | 1427 ResourceMark rm; |
| 1428 ProfileData* data = first_data(); | |
|
12962
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8026251: New type profiling points: parameters to methods
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|
1429 if (_parameters_type_data_di != -1) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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|
1430 parameters_type_data()->print_data_on(st); |
|
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|
1431 } |
| 0 | 1432 for ( ; is_valid(data); data = next_data(data)) { |
| 1433 st->print("%d", dp_to_di(data->dp())); | |
| 1434 st->fill_to(6); | |
|
14500
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|
1435 data->print_data_on(st, this); |
| 0 | 1436 } |
|
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|
1437 st->print_cr("--- Extra data:"); |
| 0 | 1438 DataLayout* dp = extra_data_base(); |
| 1439 DataLayout* end = extra_data_limit(); | |
|
14500
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|
1440 for (;; dp = next_extra(dp)) { |
|
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|
1441 assert(dp < end, "moved past end of extra data"); |
| 0 | 1442 // No need for "OrderAccess::load_acquire" ops, |
| 1443 // since the data structure is monotonic. | |
|
14500
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|
1444 switch(dp->tag()) { |
|
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|
1445 case DataLayout::no_tag: |
|
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|
1446 continue; |
|
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|
1447 case DataLayout::bit_data_tag: |
|
45
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|
1448 data = new BitData(dp); |
|
14500
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|
1449 break; |
|
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|
1450 case DataLayout::speculative_trap_data_tag: |
|
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|
1451 data = new SpeculativeTrapData(dp); |
|
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|
1452 break; |
|
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|
1453 case DataLayout::arg_info_data_tag: |
|
45
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|
1454 data = new ArgInfoData(dp); |
|
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|
1455 dp = end; // ArgInfoData is at the end of extra data section. |
|
14500
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|
1456 break; |
|
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|
1457 default: |
|
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|
1458 fatal(err_msg("unexpected tag %d", dp->tag())); |
|
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|
1459 } |
| 0 | 1460 st->print("%d", dp_to_di(data->dp())); |
| 1461 st->fill_to(6); | |
| 1462 data->print_data_on(st); | |
|
14500
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|
1463 if (dp >= end) return; |
| 0 | 1464 } |
| 1465 } | |
| 1466 #endif | |
| 1467 | |
| 7956 | 1468 #if INCLUDE_SERVICES |
| 1469 // Size Statistics | |
| 1470 void MethodData::collect_statistics(KlassSizeStats *sz) const { | |
| 1471 int n = sz->count(this); | |
| 1472 sz->_method_data_bytes += n; | |
| 1473 sz->_method_all_bytes += n; | |
| 1474 sz->_rw_bytes += n; | |
| 1475 } | |
| 1476 #endif // INCLUDE_SERVICES | |
|
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|
1477 |
|
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|
1478 // Verification |
|
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|
1479 |
|
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|
1480 void MethodData::verify_on(outputStream* st) { |
|
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|
1481 guarantee(is_methodData(), "object must be method data"); |
|
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|
1482 // guarantee(m->is_perm(), "should be in permspace"); |
|
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|
1483 this->verify_data_on(st); |
|
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|
1484 } |
|
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|
1485 |
|
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|
1486 void MethodData::verify_data_on(outputStream* st) { |
| 0 | 1487 NEEDS_CLEANUP; |
| 1488 // not yet implemented. | |
| 1489 } | |
|
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|
1490 |
|
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|
1491 bool MethodData::profile_jsr292(methodHandle m, int bci) { |
|
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|
1492 if (m->is_compiled_lambda_form()) { |
|
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|
1493 return true; |
|
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|
1494 } |
|
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|
1495 |
|
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|
1496 Bytecode_invoke inv(m , bci); |
|
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|
1497 return inv.is_invokedynamic() || inv.is_invokehandle(); |
|
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|
1498 } |
|
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|
1499 |
|
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|
1500 int MethodData::profile_arguments_flag() { |
|
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|
1501 return TypeProfileLevel % 10; |
|
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|
1502 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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diff
changeset
|
1503 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
1504 bool MethodData::profile_arguments() { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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diff
changeset
|
1505 return profile_arguments_flag() > no_type_profile && profile_arguments_flag() <= type_profile_all; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
1506 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
1507 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
1508 bool MethodData::profile_arguments_jsr292_only() { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
changeset
|
1509 return profile_arguments_flag() == type_profile_jsr292; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
1510 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
1511 |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
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parents:
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diff
changeset
|
1512 bool MethodData::profile_all_arguments() { |
|
d13d7aba8c12
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diff
changeset
|
1513 return profile_arguments_flag() == type_profile_all; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
1514 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
1515 |
|
d13d7aba8c12
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diff
changeset
|
1516 bool MethodData::profile_arguments_for_invoke(methodHandle m, int bci) { |
|
d13d7aba8c12
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roland
parents:
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diff
changeset
|
1517 if (!profile_arguments()) { |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
1518 return false; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
1519 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
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diff
changeset
|
1520 |
|
d13d7aba8c12
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roland
parents:
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diff
changeset
|
1521 if (profile_all_arguments()) { |
|
d13d7aba8c12
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roland
parents:
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diff
changeset
|
1522 return true; |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
1523 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
1524 |
|
d13d7aba8c12
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diff
changeset
|
1525 assert(profile_arguments_jsr292_only(), "inconsistent"); |
|
d13d7aba8c12
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diff
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|
1526 return profile_jsr292(m, bci); |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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diff
changeset
|
1527 } |
|
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10376
diff
changeset
|
1528 |
|
12882
ce0cc25bc5e2
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diff
changeset
|
1529 int MethodData::profile_return_flag() { |
|
12962
5ccbab1c69f3
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diff
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|
1530 return (TypeProfileLevel % 100) / 10; |
|
12882
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
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diff
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|
1531 } |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
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diff
changeset
|
1532 |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
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diff
changeset
|
1533 bool MethodData::profile_return() { |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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diff
changeset
|
1534 return profile_return_flag() > no_type_profile && profile_return_flag() <= type_profile_all; |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
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diff
changeset
|
1535 } |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
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diff
changeset
|
1536 |
|
ce0cc25bc5e2
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roland
parents:
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diff
changeset
|
1537 bool MethodData::profile_return_jsr292_only() { |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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diff
changeset
|
1538 return profile_return_flag() == type_profile_jsr292; |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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diff
changeset
|
1539 } |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
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diff
changeset
|
1540 |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1541 bool MethodData::profile_all_return() { |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
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diff
changeset
|
1542 return profile_return_flag() == type_profile_all; |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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diff
changeset
|
1543 } |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
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diff
changeset
|
1544 |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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diff
changeset
|
1545 bool MethodData::profile_return_for_invoke(methodHandle m, int bci) { |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
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diff
changeset
|
1546 if (!profile_return()) { |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1547 return false; |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1548 } |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
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diff
changeset
|
1549 |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1550 if (profile_all_return()) { |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
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diff
changeset
|
1551 return true; |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1552 } |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1553 |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1554 assert(profile_return_jsr292_only(), "inconsistent"); |
|
ce0cc25bc5e2
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roland
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diff
changeset
|
1555 return profile_jsr292(m, bci); |
|
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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diff
changeset
|
1556 } |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1557 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1558 int MethodData::profile_parameters_flag() { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
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diff
changeset
|
1559 return TypeProfileLevel / 100; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1560 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1561 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1562 bool MethodData::profile_parameters() { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1563 return profile_parameters_flag() > no_type_profile && profile_parameters_flag() <= type_profile_all; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1564 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1565 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1566 bool MethodData::profile_parameters_jsr292_only() { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1567 return profile_parameters_flag() == type_profile_jsr292; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1568 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1569 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1570 bool MethodData::profile_all_parameters() { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1571 return profile_parameters_flag() == type_profile_all; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1572 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1573 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1574 bool MethodData::profile_parameters_for_method(methodHandle m) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1575 if (!profile_parameters()) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1576 return false; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1577 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1578 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1579 if (profile_all_parameters()) { |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1580 return true; |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1581 } |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1582 |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1583 assert(profile_parameters_jsr292_only(), "inconsistent"); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1584 return m->is_compiled_lambda_form(); |
|
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1585 } |
|
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1586 |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1587 void MethodData::clean_extra_data_helper(DataLayout* dp, int shift, bool reset) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1588 if (shift == 0) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1589 return; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1590 } |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1591 if (!reset) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1592 // Move all cells of trap entry at dp left by "shift" cells |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1593 intptr_t* start = (intptr_t*)dp; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1594 intptr_t* end = (intptr_t*)next_extra(dp); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1595 for (intptr_t* ptr = start; ptr < end; ptr++) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1596 *(ptr-shift) = *ptr; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1597 } |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1598 } else { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1599 // Reset "shift" cells stopping at dp |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1600 intptr_t* start = ((intptr_t*)dp) - shift; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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diff
changeset
|
1601 intptr_t* end = (intptr_t*)dp; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1602 for (intptr_t* ptr = start; ptr < end; ptr++) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1603 *ptr = 0; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1604 } |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1605 } |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1606 } |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1607 |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1608 // Remove SpeculativeTrapData entries that reference an unloaded |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1609 // method |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1610 void MethodData::clean_extra_data(BoolObjectClosure* is_alive) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
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|
1611 DataLayout* dp = extra_data_base(); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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diff
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|
1612 DataLayout* end = extra_data_limit(); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1613 |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1614 int shift = 0; |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1615 for (; dp < end; dp = next_extra(dp)) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1616 switch(dp->tag()) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1617 case DataLayout::speculative_trap_data_tag: { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1618 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1619 Method* m = data->method(); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1620 assert(m != NULL, "should have a method"); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1621 if (!m->method_holder()->is_loader_alive(is_alive)) { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1622 // "shift" accumulates the number of cells for dead |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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14435
diff
changeset
|
1623 // SpeculativeTrapData entries that have been seen so |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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14435
diff
changeset
|
1624 // far. Following entries must be shifted left by that many |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1625 // cells to remove the dead SpeculativeTrapData entries. |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1626 shift += (int)((intptr_t*)next_extra(dp) - (intptr_t*)dp); |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1627 } else { |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1628 // Shift this entry left if it follows dead |
|
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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1629 // SpeculativeTrapData entries |
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1630 clean_extra_data_helper(dp, shift); |
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1631 } |
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1632 break; |
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1633 } |
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1634 case DataLayout::bit_data_tag: |
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1635 // Shift this entry left if it follows dead SpeculativeTrapData |
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1636 // entries |
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1637 clean_extra_data_helper(dp, shift); |
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1638 continue; |
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1639 case DataLayout::no_tag: |
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1640 case DataLayout::arg_info_data_tag: |
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1641 // We are at end of the live trap entries. The previous "shift" |
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1642 // cells contain entries that are either dead or were shifted |
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1643 // left. They need to be reset to no_tag |
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1644 clean_extra_data_helper(dp, shift, true); |
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1645 return; |
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1646 default: |
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1647 fatal(err_msg("unexpected tag %d", dp->tag())); |
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1648 } |
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1649 } |
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1650 } |
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1651 |
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1652 // Verify there's no unloaded method referenced by a |
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1653 // SpeculativeTrapData entry |
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1654 void MethodData::verify_extra_data_clean(BoolObjectClosure* is_alive) { |
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1655 #ifdef ASSERT |
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1656 DataLayout* dp = extra_data_base(); |
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1657 DataLayout* end = extra_data_limit(); |
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1658 |
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1659 for (; dp < end; dp = next_extra(dp)) { |
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1660 switch(dp->tag()) { |
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1661 case DataLayout::speculative_trap_data_tag: { |
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1662 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
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1663 Method* m = data->method(); |
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1664 assert(m != NULL && m->method_holder()->is_loader_alive(is_alive), "Method should exist"); |
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1665 break; |
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1666 } |
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1667 case DataLayout::bit_data_tag: |
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1668 continue; |
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1669 case DataLayout::no_tag: |
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1670 case DataLayout::arg_info_data_tag: |
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1671 return; |
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1672 default: |
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1673 fatal(err_msg("unexpected tag %d", dp->tag())); |
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1674 } |
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1675 } |
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1676 #endif |
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1677 } |
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1678 |
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1679 void MethodData::clean_method_data(BoolObjectClosure* is_alive) { |
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1680 for (ProfileData* data = first_data(); |
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1681 is_valid(data); |
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1682 data = next_data(data)) { |
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1683 data->clean_weak_klass_links(is_alive); |
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1684 } |
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1685 ParametersTypeData* parameters = parameters_type_data(); |
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1686 if (parameters != NULL) { |
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1687 parameters->clean_weak_klass_links(is_alive); |
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1688 } |
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1689 |
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1690 clean_extra_data(is_alive); |
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1691 verify_extra_data_clean(is_alive); |
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1692 } |