Mercurial > hg > truffle
annotate src/share/vm/oops/methodData.cpp @ 14860:8762b6b8fbb6
fix scanning of method data for redefined methods
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
---|---|
date | Thu, 27 Mar 2014 13:11:17 -0700 |
parents | 12eaf1a47a90 |
children | 4ca6dc0799b6 |
rev | line source |
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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 * | |
1552
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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 } | |
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429 |
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430 void VirtualCallData::clean_weak_method_links() { |
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431 ReceiverTypeData::clean_weak_method_links(); |
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432 for (uint row = 0; row < method_row_limit(); row++) { |
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433 Method* p = method(row); |
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434 if (p != NULL && !p->on_stack()) { |
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435 clear_method_row(row); |
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436 } |
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437 } |
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438 } |
9765 | 439 #endif // GRAAL |
440 | |
0 | 441 #ifndef PRODUCT |
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442 void ReceiverTypeData::print_receiver_data_on(outputStream* st) const { |
0 | 443 uint row; |
444 int entries = 0; | |
445 for (row = 0; row < row_limit(); row++) { | |
446 if (receiver(row) != NULL) entries++; | |
447 } | |
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448 #ifdef GRAAL |
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449 st->print_cr("count(%u) nonprofiled_count(%u) entries(%u)", count(), nonprofiled_count(), entries); |
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450 #else |
0 | 451 st->print_cr("count(%u) entries(%u)", count(), entries); |
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452 #endif |
1783 | 453 int total = count(); |
454 for (row = 0; row < row_limit(); row++) { | |
455 if (receiver(row) != NULL) { | |
456 total += receiver_count(row); | |
457 } | |
458 } | |
0 | 459 for (row = 0; row < row_limit(); row++) { |
460 if (receiver(row) != NULL) { | |
461 tab(st); | |
462 receiver(row)->print_value_on(st); | |
1783 | 463 st->print_cr("(%u %4.2f)", receiver_count(row), (float) receiver_count(row) / (float) total); |
0 | 464 } |
465 } | |
466 } | |
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467 void ReceiverTypeData::print_data_on(outputStream* st, const char* extra) const { |
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468 print_shared(st, "ReceiverTypeData", extra); |
0 | 469 print_receiver_data_on(st); |
470 } | |
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471 |
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472 #ifdef GRAAL |
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473 void VirtualCallData::print_method_data_on(outputStream* st) const { |
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474 uint row; |
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475 int entries = 0; |
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476 for (row = 0; row < method_row_limit(); row++) { |
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477 if (method(row) != NULL) entries++; |
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478 } |
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479 tab(st); |
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480 st->print_cr("method_entries(%u)", entries); |
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481 int total = count(); |
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482 for (row = 0; row < method_row_limit(); row++) { |
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483 if (method(row) != NULL) { |
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484 total += method_count(row); |
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485 } |
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486 } |
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487 for (row = 0; row < method_row_limit(); row++) { |
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488 if (method(row) != NULL) { |
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489 tab(st); |
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490 method(row)->print_value_on(st); |
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491 st->print_cr("(%u %4.2f)", method_count(row), (float) method_count(row) / (float) total); |
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492 } |
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493 } |
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494 } |
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495 #endif |
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496 |
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497 void VirtualCallData::print_data_on(outputStream* st, const char* extra) const { |
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498 print_shared(st, "VirtualCallData", extra); |
0 | 499 print_receiver_data_on(st); |
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500 #ifdef GRAAL |
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501 print_method_data_on(st); |
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502 #endif |
0 | 503 } |
504 #endif // !PRODUCT | |
505 | |
506 // ================================================================== | |
507 // RetData | |
508 // | |
509 // A RetData is used to access profiling information for a ret bytecode. | |
510 // It is composed of a count of the number of times that the ret has | |
511 // been executed, followed by a series of triples of the form | |
512 // (bci, count, di) which count the number of times that some bci was the | |
513 // target of the ret and cache a corresponding displacement. | |
514 | |
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515 void RetData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
0 | 516 for (uint row = 0; row < row_limit(); row++) { |
517 set_bci_displacement(row, -1); | |
518 set_bci(row, no_bci); | |
519 } | |
520 // release so other threads see a consistent state. bci is used as | |
521 // a valid flag for bci_displacement. | |
522 OrderAccess::release(); | |
523 } | |
524 | |
525 // This routine needs to atomically update the RetData structure, so the | |
526 // caller needs to hold the RetData_lock before it gets here. Since taking | |
527 // the lock can block (and allow GC) and since RetData is a ProfileData is a | |
528 // wrapper around a derived oop, taking the lock in _this_ method will | |
529 // basically cause the 'this' pointer's _data field to contain junk after the | |
530 // lock. We require the caller to take the lock before making the ProfileData | |
531 // structure. Currently the only caller is InterpreterRuntime::update_mdp_for_ret | |
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532 address RetData::fixup_ret(int return_bci, MethodData* h_mdo) { |
0 | 533 // First find the mdp which corresponds to the return bci. |
534 address mdp = h_mdo->bci_to_dp(return_bci); | |
535 | |
536 // Now check to see if any of the cache slots are open. | |
537 for (uint row = 0; row < row_limit(); row++) { | |
538 if (bci(row) == no_bci) { | |
539 set_bci_displacement(row, mdp - dp()); | |
540 set_bci_count(row, DataLayout::counter_increment); | |
541 // Barrier to ensure displacement is written before the bci; allows | |
542 // the interpreter to read displacement without fear of race condition. | |
543 release_set_bci(row, return_bci); | |
544 break; | |
545 } | |
546 } | |
547 return mdp; | |
548 } | |
549 | |
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550 #ifdef CC_INTERP |
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551 DataLayout* RetData::advance(MethodData *md, int bci) { |
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552 return (DataLayout*) md->bci_to_dp(bci); |
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553 } |
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554 #endif // CC_INTERP |
0 | 555 |
556 #ifndef PRODUCT | |
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557 void RetData::print_data_on(outputStream* st, const char* extra) const { |
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558 print_shared(st, "RetData", extra); |
0 | 559 uint row; |
560 int entries = 0; | |
561 for (row = 0; row < row_limit(); row++) { | |
562 if (bci(row) != no_bci) entries++; | |
563 } | |
564 st->print_cr("count(%u) entries(%u)", count(), entries); | |
565 for (row = 0; row < row_limit(); row++) { | |
566 if (bci(row) != no_bci) { | |
567 tab(st); | |
568 st->print_cr("bci(%d: count(%u) displacement(%d))", | |
569 bci(row), bci_count(row), bci_displacement(row)); | |
570 } | |
571 } | |
572 } | |
573 #endif // !PRODUCT | |
574 | |
575 // ================================================================== | |
576 // BranchData | |
577 // | |
578 // A BranchData is used to access profiling data for a two-way branch. | |
579 // It consists of taken and not_taken counts as well as a data displacement | |
580 // for the taken case. | |
581 | |
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582 void BranchData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
0 | 583 assert(stream->bci() == bci(), "wrong pos"); |
584 int target = stream->dest(); | |
585 int my_di = mdo->dp_to_di(dp()); | |
586 int target_di = mdo->bci_to_di(target); | |
587 int offset = target_di - my_di; | |
588 set_displacement(offset); | |
589 } | |
590 | |
591 #ifndef PRODUCT | |
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592 void BranchData::print_data_on(outputStream* st, const char* extra) const { |
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593 print_shared(st, "BranchData", extra); |
0 | 594 st->print_cr("taken(%u) displacement(%d)", |
595 taken(), displacement()); | |
596 tab(st); | |
597 st->print_cr("not taken(%u)", not_taken()); | |
598 } | |
599 #endif | |
600 | |
601 // ================================================================== | |
602 // MultiBranchData | |
603 // | |
604 // A MultiBranchData is used to access profiling information for | |
605 // a multi-way branch (*switch bytecodes). It consists of a series | |
606 // of (count, displacement) pairs, which count the number of times each | |
607 // case was taken and specify the data displacment for each branch target. | |
608 | |
609 int MultiBranchData::compute_cell_count(BytecodeStream* stream) { | |
610 int cell_count = 0; | |
611 if (stream->code() == Bytecodes::_tableswitch) { | |
2142 | 612 Bytecode_tableswitch sw(stream->method()(), stream->bcp()); |
613 cell_count = 1 + per_case_cell_count * (1 + sw.length()); // 1 for default | |
0 | 614 } else { |
2142 | 615 Bytecode_lookupswitch sw(stream->method()(), stream->bcp()); |
616 cell_count = 1 + per_case_cell_count * (sw.number_of_pairs() + 1); // 1 for default | |
0 | 617 } |
618 return cell_count; | |
619 } | |
620 | |
621 void MultiBranchData::post_initialize(BytecodeStream* stream, | |
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622 MethodData* mdo) { |
0 | 623 assert(stream->bci() == bci(), "wrong pos"); |
624 int target; | |
625 int my_di; | |
626 int target_di; | |
627 int offset; | |
628 if (stream->code() == Bytecodes::_tableswitch) { | |
2142 | 629 Bytecode_tableswitch sw(stream->method()(), stream->bcp()); |
630 int len = sw.length(); | |
0 | 631 assert(array_len() == per_case_cell_count * (len + 1), "wrong len"); |
632 for (int count = 0; count < len; count++) { | |
2142 | 633 target = sw.dest_offset_at(count) + bci(); |
0 | 634 my_di = mdo->dp_to_di(dp()); |
635 target_di = mdo->bci_to_di(target); | |
636 offset = target_di - my_di; | |
637 set_displacement_at(count, offset); | |
638 } | |
2142 | 639 target = sw.default_offset() + bci(); |
0 | 640 my_di = mdo->dp_to_di(dp()); |
641 target_di = mdo->bci_to_di(target); | |
642 offset = target_di - my_di; | |
643 set_default_displacement(offset); | |
644 | |
645 } else { | |
2142 | 646 Bytecode_lookupswitch sw(stream->method()(), stream->bcp()); |
647 int npairs = sw.number_of_pairs(); | |
0 | 648 assert(array_len() == per_case_cell_count * (npairs + 1), "wrong len"); |
649 for (int count = 0; count < npairs; count++) { | |
2142 | 650 LookupswitchPair pair = sw.pair_at(count); |
651 target = pair.offset() + bci(); | |
0 | 652 my_di = mdo->dp_to_di(dp()); |
653 target_di = mdo->bci_to_di(target); | |
654 offset = target_di - my_di; | |
655 set_displacement_at(count, offset); | |
656 } | |
2142 | 657 target = sw.default_offset() + bci(); |
0 | 658 my_di = mdo->dp_to_di(dp()); |
659 target_di = mdo->bci_to_di(target); | |
660 offset = target_di - my_di; | |
661 set_default_displacement(offset); | |
662 } | |
663 } | |
664 | |
665 #ifndef PRODUCT | |
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666 void MultiBranchData::print_data_on(outputStream* st, const char* extra) const { |
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667 print_shared(st, "MultiBranchData", extra); |
0 | 668 st->print_cr("default_count(%u) displacement(%d)", |
669 default_count(), default_displacement()); | |
670 int cases = number_of_cases(); | |
671 for (int i = 0; i < cases; i++) { | |
672 tab(st); | |
673 st->print_cr("count(%u) displacement(%d)", | |
674 count_at(i), displacement_at(i)); | |
675 } | |
676 } | |
677 #endif | |
678 | |
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679 #ifndef PRODUCT |
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680 void ArgInfoData::print_data_on(outputStream* st, const char* extra) const { |
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681 print_shared(st, "ArgInfoData", extra); |
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682 int nargs = number_of_args(); |
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683 for (int i = 0; i < nargs; i++) { |
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684 st->print(" 0x%x", arg_modified(i)); |
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685 } |
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686 st->cr(); |
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687 } |
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688 |
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689 #endif |
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690 |
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691 int ParametersTypeData::compute_cell_count(Method* m) { |
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692 if (!MethodData::profile_parameters_for_method(m)) { |
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693 return 0; |
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694 } |
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695 int max = TypeProfileParmsLimit == -1 ? INT_MAX : TypeProfileParmsLimit; |
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696 int obj_args = TypeStackSlotEntries::compute_cell_count(m->signature(), !m->is_static(), max); |
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697 if (obj_args > 0) { |
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698 return obj_args + 1; // 1 cell for array len |
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699 } |
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700 return 0; |
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701 } |
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702 |
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703 void ParametersTypeData::post_initialize(BytecodeStream* stream, MethodData* mdo) { |
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704 _parameters.post_initialize(mdo->method()->signature(), !mdo->method()->is_static(), true); |
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705 } |
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706 |
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707 bool ParametersTypeData::profiling_enabled() { |
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708 return MethodData::profile_parameters(); |
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709 } |
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710 |
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711 #ifndef PRODUCT |
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712 void ParametersTypeData::print_data_on(outputStream* st, const char* extra) const { |
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713 st->print("parameter types", extra); |
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714 _parameters.print_data_on(st); |
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715 } |
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716 |
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717 void SpeculativeTrapData::print_data_on(outputStream* st, const char* extra) const { |
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718 print_shared(st, "SpeculativeTrapData", extra); |
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719 tab(st); |
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720 method()->print_short_name(st); |
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721 st->cr(); |
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722 } |
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723 #endif |
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724 |
0 | 725 // ================================================================== |
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726 // MethodData* |
0 | 727 // |
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728 // A MethodData* holds information which has been collected about |
0 | 729 // a method. |
730 | |
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731 MethodData* MethodData::allocate(ClassLoaderData* loader_data, methodHandle method, TRAPS) { |
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732 int size = MethodData::compute_allocation_size_in_words(method); |
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733 |
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734 return new (loader_data, size, false, MetaspaceObj::MethodDataType, THREAD) |
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735 MethodData(method(), size, CHECK_NULL); |
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736 } |
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737 |
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738 int MethodData::bytecode_cell_count(Bytecodes::Code code) { |
8883 | 739 #if defined(COMPILER1) && !(defined(COMPILER2) || defined(GRAAL)) |
8860 | 740 return no_profile_data; |
741 #else | |
0 | 742 switch (code) { |
743 case Bytecodes::_checkcast: | |
744 case Bytecodes::_instanceof: | |
745 case Bytecodes::_aastore: | |
746 if (TypeProfileCasts) { | |
747 return ReceiverTypeData::static_cell_count(); | |
748 } else { | |
749 return BitData::static_cell_count(); | |
750 } | |
751 case Bytecodes::_invokespecial: | |
752 case Bytecodes::_invokestatic: | |
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753 if (MethodData::profile_arguments() || MethodData::profile_return()) { |
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754 return variable_cell_count; |
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755 } else { |
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756 return CounterData::static_cell_count(); |
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757 } |
0 | 758 case Bytecodes::_goto: |
759 case Bytecodes::_goto_w: | |
760 case Bytecodes::_jsr: | |
761 case Bytecodes::_jsr_w: | |
762 return JumpData::static_cell_count(); | |
763 case Bytecodes::_invokevirtual: | |
764 case Bytecodes::_invokeinterface: | |
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765 if (MethodData::profile_arguments() || MethodData::profile_return()) { |
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766 return variable_cell_count; |
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767 } else { |
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768 return VirtualCallData::static_cell_count(); |
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769 } |
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770 case Bytecodes::_invokedynamic: |
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771 if (MethodData::profile_arguments() || MethodData::profile_return()) { |
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772 return variable_cell_count; |
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773 } else { |
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774 return CounterData::static_cell_count(); |
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775 } |
0 | 776 case Bytecodes::_ret: |
777 return RetData::static_cell_count(); | |
778 case Bytecodes::_ifeq: | |
779 case Bytecodes::_ifne: | |
780 case Bytecodes::_iflt: | |
781 case Bytecodes::_ifge: | |
782 case Bytecodes::_ifgt: | |
783 case Bytecodes::_ifle: | |
784 case Bytecodes::_if_icmpeq: | |
785 case Bytecodes::_if_icmpne: | |
786 case Bytecodes::_if_icmplt: | |
787 case Bytecodes::_if_icmpge: | |
788 case Bytecodes::_if_icmpgt: | |
789 case Bytecodes::_if_icmple: | |
790 case Bytecodes::_if_acmpeq: | |
791 case Bytecodes::_if_acmpne: | |
792 case Bytecodes::_ifnull: | |
793 case Bytecodes::_ifnonnull: | |
794 return BranchData::static_cell_count(); | |
795 case Bytecodes::_lookupswitch: | |
796 case Bytecodes::_tableswitch: | |
797 return variable_cell_count; | |
798 } | |
799 return no_profile_data; | |
8860 | 800 #endif |
0 | 801 } |
802 | |
803 // Compute the size of the profiling information corresponding to | |
804 // the current bytecode. | |
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805 int MethodData::compute_data_size(BytecodeStream* stream) { |
0 | 806 int cell_count = bytecode_cell_count(stream->code()); |
807 if (cell_count == no_profile_data) { | |
808 return 0; | |
809 } | |
810 if (cell_count == variable_cell_count) { | |
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811 switch (stream->code()) { |
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812 case Bytecodes::_lookupswitch: |
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813 case Bytecodes::_tableswitch: |
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814 cell_count = MultiBranchData::compute_cell_count(stream); |
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815 break; |
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816 case Bytecodes::_invokespecial: |
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817 case Bytecodes::_invokestatic: |
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818 case Bytecodes::_invokedynamic: |
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819 assert(MethodData::profile_arguments() || MethodData::profile_return(), "should be collecting args profile"); |
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820 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
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821 profile_return_for_invoke(stream->method(), stream->bci())) { |
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822 cell_count = CallTypeData::compute_cell_count(stream); |
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823 } else { |
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824 cell_count = CounterData::static_cell_count(); |
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825 } |
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826 break; |
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827 case Bytecodes::_invokevirtual: |
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828 case Bytecodes::_invokeinterface: { |
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829 assert(MethodData::profile_arguments() || MethodData::profile_return(), "should be collecting args profile"); |
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830 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
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831 profile_return_for_invoke(stream->method(), stream->bci())) { |
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832 cell_count = VirtualCallTypeData::compute_cell_count(stream); |
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833 } else { |
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834 cell_count = VirtualCallData::static_cell_count(); |
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|
835 } |
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|
836 break; |
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|
837 } |
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|
838 default: |
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839 fatal("unexpected bytecode for var length profile data"); |
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840 } |
0 | 841 } |
842 // Note: cell_count might be zero, meaning that there is just | |
843 // a DataLayout header, with no extra cells. | |
844 assert(cell_count >= 0, "sanity"); | |
845 return DataLayout::compute_size_in_bytes(cell_count); | |
846 } | |
847 | |
14500
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|
848 bool MethodData::is_speculative_trap_bytecode(Bytecodes::Code code) { |
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849 // Bytecodes for which we may use speculation |
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850 switch (code) { |
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851 case Bytecodes::_checkcast: |
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|
852 case Bytecodes::_instanceof: |
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853 case Bytecodes::_aastore: |
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854 case Bytecodes::_invokevirtual: |
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855 case Bytecodes::_invokeinterface: |
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856 case Bytecodes::_if_acmpeq: |
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857 case Bytecodes::_if_acmpne: |
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858 case Bytecodes::_invokestatic: |
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859 #ifdef COMPILER2 |
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860 return UseTypeSpeculation; |
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|
861 #endif |
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862 default: |
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|
863 return false; |
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|
864 } |
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|
865 return false; |
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|
866 } |
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|
867 |
8616
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Christian Haeubl <haeubl@ssw.jku.at>
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diff
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|
868 #ifdef GRAAL |
14518 | 869 int MethodData::compute_extra_data_count(int data_size, int empty_bc_count, bool needs_speculative_traps) { |
4568
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Christian Haeubl <christian.haeubl@oracle.com>
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870 if (!ProfileTraps) return 0; |
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Christian Haeubl <christian.haeubl@oracle.com>
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|
871 |
8e1d9c27989a
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parents:
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diff
changeset
|
872 // Assume that up to 30% of the possibly trapping BCIs with no MDP will need to allocate one. |
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|
873 return MIN2(empty_bc_count, MAX2(4, (empty_bc_count * 30) / 100)); |
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Christian Haeubl <christian.haeubl@oracle.com>
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874 } |
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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>
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|
875 #else |
14500
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876 int MethodData::compute_extra_data_count(int data_size, int empty_bc_count, bool needs_speculative_traps) { |
0 | 877 if (ProfileTraps) { |
878 // Assume that up to 3% of BCIs with no MDP will need to allocate one. | |
879 int extra_data_count = (uint)(empty_bc_count * 3) / 128 + 1; | |
880 // If the method is large, let the extra BCIs grow numerous (to ~1%). | |
881 int one_percent_of_data | |
882 = (uint)data_size / (DataLayout::header_size_in_bytes()*128); | |
883 if (extra_data_count < one_percent_of_data) | |
884 extra_data_count = one_percent_of_data; | |
885 if (extra_data_count > empty_bc_count) | |
886 extra_data_count = empty_bc_count; // no need for more | |
14500
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887 |
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|
888 // Make sure we have a minimum number of extra data slots to |
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|
889 // allocate SpeculativeTrapData entries. We would want to have one |
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890 // entry per compilation that inlines this method and for which |
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891 // some type speculation assumption fails. So the room we need for |
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8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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892 // the SpeculativeTrapData entries doesn't directly depend on the |
fdad2932c73f
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893 // size of the method. Because it's hard to estimate, we reserve |
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|
894 // space for an arbitrary number of entries. |
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|
895 int spec_data_count = (needs_speculative_traps ? SpecTrapLimitExtraEntries : 0) * |
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|
896 (SpeculativeTrapData::static_cell_count() + DataLayout::header_size_in_cells()); |
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|
897 |
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|
898 return MAX2(extra_data_count, spec_data_count); |
0 | 899 } else { |
900 return 0; | |
901 } | |
902 } | |
4568
8e1d9c27989a
better allocation of methodData's extraData so that exceptions and deoptimizations can be recorded more accurately
Christian Haeubl <christian.haeubl@oracle.com>
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4439
diff
changeset
|
903 #endif |
0 | 904 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
2264
diff
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|
905 // Compute the size of the MethodData* necessary to store |
0 | 906 // profiling information about a given method. Size is in bytes. |
6725
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|
907 int MethodData::compute_allocation_size_in_bytes(methodHandle method) { |
0 | 908 int data_size = 0; |
909 BytecodeStream stream(method); | |
910 Bytecodes::Code c; | |
911 int empty_bc_count = 0; // number of bytecodes lacking data | |
14500
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|
912 bool needs_speculative_traps = false; |
0 | 913 while ((c = stream.next()) >= 0) { |
914 int size_in_bytes = compute_data_size(&stream); | |
915 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
|
916 if (size_in_bytes == 0 GRAAL_ONLY(&& Bytecodes::can_trap(c))) empty_bc_count += 1; |
14500
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8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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|
917 needs_speculative_traps = needs_speculative_traps || is_speculative_trap_bytecode(c); |
0 | 918 } |
919 int object_size = in_bytes(data_offset()) + data_size; | |
920 | |
921 // Add some extra DataLayout cells (at least one) to track stray traps. | |
14500
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diff
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|
922 int extra_data_count = compute_extra_data_count(data_size, empty_bc_count, needs_speculative_traps); |
0 | 923 object_size += extra_data_count * DataLayout::compute_size_in_bytes(0); |
924 | |
45
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
parents:
0
diff
changeset
|
925 // 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
|
926 int arg_size = method->size_of_parameters(); |
48a3fa21394b
6667615: (Escape Analysis) extend MDO to cache arguments escape state
kvn
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0
diff
changeset
|
927 object_size += DataLayout::compute_size_in_bytes(arg_size+1); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
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diff
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|
928 |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
929 // 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
|
930 // parameters |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
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12882
diff
changeset
|
931 int args_cell = ParametersTypeData::compute_cell_count(method()); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
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12882
diff
changeset
|
932 if (args_cell > 0) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
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12882
diff
changeset
|
933 object_size += DataLayout::compute_size_in_bytes(args_cell); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
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diff
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|
934 } |
0 | 935 return object_size; |
936 } | |
937 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
2264
diff
changeset
|
938 // Compute the size of the MethodData* necessary to store |
0 | 939 // profiling information about a given method. Size is in words |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
changeset
|
940 int MethodData::compute_allocation_size_in_words(methodHandle method) { |
0 | 941 int byte_size = compute_allocation_size_in_bytes(method); |
942 int word_size = align_size_up(byte_size, BytesPerWord) / BytesPerWord; | |
943 return align_object_size(word_size); | |
944 } | |
945 | |
946 // Initialize an individual data segment. Returns the size of | |
947 // the segment in bytes. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
changeset
|
948 int MethodData::initialize_data(BytecodeStream* stream, |
0 | 949 int data_index) { |
8883 | 950 #if defined(COMPILER1) && !(defined(COMPILER2) || defined(GRAAL)) |
8860 | 951 return 0; |
952 #else | |
0 | 953 int cell_count = -1; |
954 int tag = DataLayout::no_tag; | |
955 DataLayout* data_layout = data_layout_at(data_index); | |
956 Bytecodes::Code c = stream->code(); | |
957 switch (c) { | |
958 case Bytecodes::_checkcast: | |
959 case Bytecodes::_instanceof: | |
960 case Bytecodes::_aastore: | |
961 if (TypeProfileCasts) { | |
962 cell_count = ReceiverTypeData::static_cell_count(); | |
963 tag = DataLayout::receiver_type_data_tag; | |
964 } else { | |
965 cell_count = BitData::static_cell_count(); | |
966 tag = DataLayout::bit_data_tag; | |
967 } | |
968 break; | |
969 case Bytecodes::_invokespecial: | |
12875
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10376
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|
970 case Bytecodes::_invokestatic: { |
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roland
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diff
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|
971 int counter_data_cell_count = CounterData::static_cell_count(); |
12882
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8026054: New type profiling points: type of return values at calls
roland
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12875
diff
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|
972 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
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12875
diff
changeset
|
973 profile_return_for_invoke(stream->method(), stream->bci())) { |
12875
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diff
changeset
|
974 cell_count = CallTypeData::compute_cell_count(stream); |
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diff
changeset
|
975 } else { |
d13d7aba8c12
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roland
parents:
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diff
changeset
|
976 cell_count = counter_data_cell_count; |
d13d7aba8c12
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diff
changeset
|
977 } |
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diff
changeset
|
978 if (cell_count > counter_data_cell_count) { |
d13d7aba8c12
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10376
diff
changeset
|
979 tag = DataLayout::call_type_data_tag; |
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diff
changeset
|
980 } else { |
d13d7aba8c12
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diff
changeset
|
981 tag = DataLayout::counter_data_tag; |
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parents:
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diff
changeset
|
982 } |
0 | 983 break; |
12875
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|
984 } |
0 | 985 case Bytecodes::_goto: |
986 case Bytecodes::_goto_w: | |
987 case Bytecodes::_jsr: | |
988 case Bytecodes::_jsr_w: | |
989 cell_count = JumpData::static_cell_count(); | |
990 tag = DataLayout::jump_data_tag; | |
991 break; | |
992 case Bytecodes::_invokevirtual: | |
12875
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8023657: New type profiling points: arguments to call
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diff
changeset
|
993 case Bytecodes::_invokeinterface: { |
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diff
changeset
|
994 int virtual_call_data_cell_count = VirtualCallData::static_cell_count(); |
12882
ce0cc25bc5e2
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roland
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12875
diff
changeset
|
995 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
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8026054: New type profiling points: type of return values at calls
roland
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12875
diff
changeset
|
996 profile_return_for_invoke(stream->method(), stream->bci())) { |
12875
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diff
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|
997 cell_count = VirtualCallTypeData::compute_cell_count(stream); |
d13d7aba8c12
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diff
changeset
|
998 } else { |
d13d7aba8c12
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diff
changeset
|
999 cell_count = virtual_call_data_cell_count; |
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diff
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|
1000 } |
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diff
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|
1001 if (cell_count > virtual_call_data_cell_count) { |
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diff
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|
1002 tag = DataLayout::virtual_call_type_data_tag; |
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diff
changeset
|
1003 } else { |
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diff
changeset
|
1004 tag = DataLayout::virtual_call_data_tag; |
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diff
changeset
|
1005 } |
0 | 1006 break; |
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diff
changeset
|
1007 } |
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diff
changeset
|
1008 case Bytecodes::_invokedynamic: { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
196
diff
changeset
|
1009 // %%% should make a type profile for any invokedynamic that takes a ref argument |
12875
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10376
diff
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|
1010 int counter_data_cell_count = CounterData::static_cell_count(); |
12882
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|
1011 if (profile_arguments_for_invoke(stream->method(), stream->bci()) || |
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8026054: New type profiling points: type of return values at calls
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1012 profile_return_for_invoke(stream->method(), stream->bci())) { |
12875
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diff
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|
1013 cell_count = CallTypeData::compute_cell_count(stream); |
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diff
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|
1014 } else { |
d13d7aba8c12
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diff
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|
1015 cell_count = counter_data_cell_count; |
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1016 } |
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1017 if (cell_count > counter_data_cell_count) { |
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1018 tag = DataLayout::call_type_data_tag; |
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1019 } else { |
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1020 tag = DataLayout::counter_data_tag; |
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1021 } |
726
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1022 break; |
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1023 } |
0 | 1024 case Bytecodes::_ret: |
1025 cell_count = RetData::static_cell_count(); | |
1026 tag = DataLayout::ret_data_tag; | |
1027 break; | |
1028 case Bytecodes::_ifeq: | |
1029 case Bytecodes::_ifne: | |
1030 case Bytecodes::_iflt: | |
1031 case Bytecodes::_ifge: | |
1032 case Bytecodes::_ifgt: | |
1033 case Bytecodes::_ifle: | |
1034 case Bytecodes::_if_icmpeq: | |
1035 case Bytecodes::_if_icmpne: | |
1036 case Bytecodes::_if_icmplt: | |
1037 case Bytecodes::_if_icmpge: | |
1038 case Bytecodes::_if_icmpgt: | |
1039 case Bytecodes::_if_icmple: | |
1040 case Bytecodes::_if_acmpeq: | |
1041 case Bytecodes::_if_acmpne: | |
1042 case Bytecodes::_ifnull: | |
1043 case Bytecodes::_ifnonnull: | |
1044 cell_count = BranchData::static_cell_count(); | |
1045 tag = DataLayout::branch_data_tag; | |
1046 break; | |
1047 case Bytecodes::_lookupswitch: | |
1048 case Bytecodes::_tableswitch: | |
1049 cell_count = MultiBranchData::compute_cell_count(stream); | |
1050 tag = DataLayout::multi_branch_data_tag; | |
1051 break; | |
1052 } | |
1053 assert(tag == DataLayout::multi_branch_data_tag || | |
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1054 ((MethodData::profile_arguments() || MethodData::profile_return()) && |
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1055 (tag == DataLayout::call_type_data_tag || |
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1056 tag == DataLayout::counter_data_tag || |
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1057 tag == DataLayout::virtual_call_type_data_tag || |
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1058 tag == DataLayout::virtual_call_data_tag)) || |
0 | 1059 cell_count == bytecode_cell_count(c), "cell counts must agree"); |
1060 if (cell_count >= 0) { | |
1061 assert(tag != DataLayout::no_tag, "bad tag"); | |
1062 assert(bytecode_has_profile(c), "agree w/ BHP"); | |
1063 data_layout->initialize(tag, stream->bci(), cell_count); | |
1064 return DataLayout::compute_size_in_bytes(cell_count); | |
1065 } else { | |
1066 assert(!bytecode_has_profile(c), "agree w/ !BHP"); | |
1067 return 0; | |
1068 } | |
8860 | 1069 #endif |
0 | 1070 } |
1071 | |
1072 // Get the data at an arbitrary (sort of) data index. | |
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1073 ProfileData* MethodData::data_at(int data_index) const { |
0 | 1074 if (out_of_bounds(data_index)) { |
1075 return NULL; | |
1076 } | |
1077 DataLayout* data_layout = data_layout_at(data_index); | |
941 | 1078 return data_layout->data_in(); |
1079 } | |
0 | 1080 |
941 | 1081 ProfileData* DataLayout::data_in() { |
1082 switch (tag()) { | |
0 | 1083 case DataLayout::no_tag: |
1084 default: | |
1085 ShouldNotReachHere(); | |
1086 return NULL; | |
1087 case DataLayout::bit_data_tag: | |
941 | 1088 return new BitData(this); |
0 | 1089 case DataLayout::counter_data_tag: |
941 | 1090 return new CounterData(this); |
0 | 1091 case DataLayout::jump_data_tag: |
941 | 1092 return new JumpData(this); |
0 | 1093 case DataLayout::receiver_type_data_tag: |
941 | 1094 return new ReceiverTypeData(this); |
0 | 1095 case DataLayout::virtual_call_data_tag: |
941 | 1096 return new VirtualCallData(this); |
0 | 1097 case DataLayout::ret_data_tag: |
941 | 1098 return new RetData(this); |
0 | 1099 case DataLayout::branch_data_tag: |
941 | 1100 return new BranchData(this); |
0 | 1101 case DataLayout::multi_branch_data_tag: |
941 | 1102 return new MultiBranchData(this); |
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1103 case DataLayout::arg_info_data_tag: |
941 | 1104 return new ArgInfoData(this); |
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1105 case DataLayout::call_type_data_tag: |
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1106 return new CallTypeData(this); |
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1107 case DataLayout::virtual_call_type_data_tag: |
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1108 return new VirtualCallTypeData(this); |
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1109 case DataLayout::parameters_type_data_tag: |
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1110 return new ParametersTypeData(this); |
0 | 1111 }; |
1112 } | |
1113 | |
1114 // Iteration over data. | |
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1115 ProfileData* MethodData::next_data(ProfileData* current) const { |
0 | 1116 int current_index = dp_to_di(current->dp()); |
1117 int next_index = current_index + current->size_in_bytes(); | |
1118 ProfileData* next = data_at(next_index); | |
1119 return next; | |
1120 } | |
1121 | |
1122 // Give each of the data entries a chance to perform specific | |
1123 // data initialization. | |
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1124 void MethodData::post_initialize(BytecodeStream* stream) { |
0 | 1125 ResourceMark rm; |
1126 ProfileData* data; | |
1127 for (data = first_data(); is_valid(data); data = next_data(data)) { | |
1128 stream->set_start(data->bci()); | |
1129 stream->next(); | |
1130 data->post_initialize(stream, this); | |
1131 } | |
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1132 if (_parameters_type_data_di != -1) { |
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1133 parameters_type_data()->post_initialize(NULL, this); |
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1134 } |
0 | 1135 } |
1136 | |
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1137 // Initialize the MethodData* corresponding to a given method. |
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1138 MethodData::MethodData(methodHandle method, int size, TRAPS) { |
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1139 // Set the method back-pointer. |
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1140 _method = method(); |
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1141 initialize(); |
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1142 } |
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1143 |
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1144 void MethodData::initialize(bool for_reprofile) { |
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1145 No_Safepoint_Verifier no_safepoint; // init function atomic wrt GC |
0 | 1146 ResourceMark rm; |
1783 | 1147 |
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1148 init(); |
0 | 1149 set_creation_mileage(mileage_of(method())); |
1150 | |
1151 // Go through the bytecodes and allocate and initialize the | |
1152 // corresponding data cells. | |
1153 int data_size = 0; | |
1154 int empty_bc_count = 0; // number of bytecodes lacking data | |
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1155 _data[0] = 0; // apparently not set below. |
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1156 BytecodeStream stream(method()); |
0 | 1157 Bytecodes::Code c; |
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1158 bool needs_speculative_traps = false; |
0 | 1159 while ((c = stream.next()) >= 0) { |
1160 int size_in_bytes = initialize_data(&stream, data_size); | |
1161 data_size += size_in_bytes; | |
13181
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1162 if (size_in_bytes == 0 GRAAL_ONLY(&& Bytecodes::can_trap(c))) empty_bc_count += 1; |
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1163 needs_speculative_traps = needs_speculative_traps || is_speculative_trap_bytecode(c); |
0 | 1164 } |
1165 _data_size = data_size; | |
1166 int object_size = in_bytes(data_offset()) + data_size; | |
1167 | |
1168 // Add some extra DataLayout cells (at least one) to track stray traps. | |
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1169 int extra_data_count = compute_extra_data_count(data_size, empty_bc_count, needs_speculative_traps); |
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1170 int extra_size = extra_data_count * DataLayout::compute_size_in_bytes(0); |
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1171 |
14518 | 1172 //#ifdef GRAAL |
1173 // if (for_reprofile) { | |
1174 // // Clear out extra data | |
1175 // Copy::zero_to_bytes((HeapWord*) extra_data_base(), extra_size); | |
1176 // } | |
1177 //#endif | |
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1178 // Let's zero the space for the extra data |
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1179 Copy::zero_to_bytes(((address)_data) + data_size, extra_size); |
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1180 |
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1181 // Add a cell to record information about modified arguments. |
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1182 // Set up _args_modified array after traps cells so that |
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1183 // the code for traps cells works. |
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1184 DataLayout *dp = data_layout_at(data_size + extra_size); |
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1185 |
8615 | 1186 int arg_size = method()->size_of_parameters(); |
45
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1187 dp->initialize(DataLayout::arg_info_data_tag, 0, arg_size+1); |
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1188 |
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1189 int arg_data_size = DataLayout::compute_size_in_bytes(arg_size+1); |
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1190 object_size += extra_size + arg_data_size; |
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1191 |
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1192 int parms_cell = ParametersTypeData::compute_cell_count(method()); |
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1193 // If we are profiling parameters, we reserver an area near the end |
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1194 // of the MDO after the slots for bytecodes (because there's no bci |
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1195 // for method entry so they don't fit with the framework for the |
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1196 // profiling of bytecodes). We store the offset within the MDO of |
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1197 // this area (or -1 if no parameter is profiled) |
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1198 if (parms_cell > 0) { |
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1199 object_size += DataLayout::compute_size_in_bytes(parms_cell); |
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1200 _parameters_type_data_di = data_size + extra_size + arg_data_size; |
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1201 DataLayout *dp = data_layout_at(data_size + extra_size + arg_data_size); |
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1202 dp->initialize(DataLayout::parameters_type_data_tag, 0, parms_cell); |
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1203 } else { |
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1204 _parameters_type_data_di = -1; |
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1205 } |
0 | 1206 |
1207 // Set an initial hint. Don't use set_hint_di() because | |
1208 // first_di() may be out of bounds if data_size is 0. | |
1209 // In that situation, _hint_di is never used, but at | |
1210 // least well-defined. | |
1211 _hint_di = first_di(); | |
1212 | |
1213 post_initialize(&stream); | |
1214 | |
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1215 assert(object_size == compute_allocation_size_in_bytes(methodHandle(_method)), "MethodData: computed size != initialized size"); |
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1216 set_size(object_size); |
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1217 } |
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1218 |
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1219 void MethodData::init() { |
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1220 _invocation_counter.init(); |
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1221 _backedge_counter.init(); |
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1222 _invocation_counter_start = 0; |
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1223 _backedge_counter_start = 0; |
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1224 _num_loops = 0; |
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1225 _num_blocks = 0; |
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1226 _highest_comp_level = 0; |
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1227 _highest_osr_comp_level = 0; |
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1228 _would_profile = true; |
14543
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1229 #ifdef GRAAL |
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|
1230 _graal_node_count = 0; |
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1231 #endif |
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1232 |
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1233 // Initialize flags and trap history. |
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1234 _nof_decompiles = 0; |
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1235 _nof_overflow_recompiles = 0; |
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1236 _nof_overflow_traps = 0; |
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1237 clear_escape_info(); |
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1238 assert(sizeof(_trap_hist) % sizeof(HeapWord) == 0, "align"); |
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1239 Copy::zero_to_words((HeapWord*) &_trap_hist, |
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1240 sizeof(_trap_hist) / sizeof(HeapWord)); |
0 | 1241 } |
1242 | |
1243 // Get a measure of how much mileage the method has on it. | |
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1244 int MethodData::mileage_of(Method* method) { |
0 | 1245 int mileage = 0; |
1783 | 1246 if (TieredCompilation) { |
1247 mileage = MAX2(method->invocation_count(), method->backedge_count()); | |
1248 } else { | |
1249 int iic = method->interpreter_invocation_count(); | |
1250 if (mileage < iic) mileage = iic; | |
10105
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1251 MethodCounters* mcs = method->method_counters(); |
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1252 if (mcs != NULL) { |
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1253 InvocationCounter* ic = mcs->invocation_counter(); |
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1254 InvocationCounter* bc = mcs->backedge_counter(); |
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1255 int icval = ic->count(); |
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1256 if (ic->carry()) icval += CompileThreshold; |
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1257 if (mileage < icval) mileage = icval; |
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1258 int bcval = bc->count(); |
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1259 if (bc->carry()) bcval += CompileThreshold; |
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1260 if (mileage < bcval) mileage = bcval; |
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1261 } |
1783 | 1262 } |
0 | 1263 return mileage; |
1264 } | |
1265 | |
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1266 bool MethodData::is_mature() const { |
1783 | 1267 return CompilationPolicy::policy()->is_mature(_method); |
0 | 1268 } |
1269 | |
1270 // Translate a bci to its corresponding data index (di). | |
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1271 address MethodData::bci_to_dp(int bci) { |
0 | 1272 ResourceMark rm; |
1273 ProfileData* data = data_before(bci); | |
1274 ProfileData* prev = NULL; | |
1275 for ( ; is_valid(data); data = next_data(data)) { | |
1276 if (data->bci() >= bci) { | |
1277 if (data->bci() == bci) set_hint_di(dp_to_di(data->dp())); | |
1278 else if (prev != NULL) set_hint_di(dp_to_di(prev->dp())); | |
1279 return data->dp(); | |
1280 } | |
1281 prev = data; | |
1282 } | |
1283 return (address)limit_data_position(); | |
1284 } | |
1285 | |
1286 // Translate a bci to its corresponding data, or NULL. | |
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1287 ProfileData* MethodData::bci_to_data(int bci) { |
0 | 1288 ProfileData* data = data_before(bci); |
1289 for ( ; is_valid(data); data = next_data(data)) { | |
1290 if (data->bci() == bci) { | |
1291 set_hint_di(dp_to_di(data->dp())); | |
1292 return data; | |
1293 } else if (data->bci() > bci) { | |
1294 break; | |
1295 } | |
1296 } | |
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1297 return bci_to_extra_data(bci, NULL, false); |
0 | 1298 } |
1299 | |
14500
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1300 DataLayout* MethodData::next_extra(DataLayout* dp) { |
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1301 int nb_cells = 0; |
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1302 switch(dp->tag()) { |
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1303 case DataLayout::bit_data_tag: |
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1304 case DataLayout::no_tag: |
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1305 nb_cells = BitData::static_cell_count(); |
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1306 break; |
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1307 case DataLayout::speculative_trap_data_tag: |
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1308 nb_cells = SpeculativeTrapData::static_cell_count(); |
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1309 break; |
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|
1310 default: |
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1311 fatal(err_msg("unexpected tag %d", dp->tag())); |
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1312 } |
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1313 return (DataLayout*)((address)dp + DataLayout::compute_size_in_bytes(nb_cells)); |
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1314 } |
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1315 |
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1316 ProfileData* MethodData::bci_to_extra_data_helper(int bci, Method* m, DataLayout*& dp) { |
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1317 DataLayout* end = extra_data_limit(); |
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1318 |
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1319 for (;; dp = next_extra(dp)) { |
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1320 assert(dp < end, "moved past end of extra data"); |
0 | 1321 // No need for "OrderAccess::load_acquire" ops, |
1322 // since the data structure is monotonic. | |
14500
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1323 switch(dp->tag()) { |
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1324 case DataLayout::no_tag: |
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1325 return NULL; |
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1326 case DataLayout::arg_info_data_tag: |
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1327 dp = end; |
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1328 return NULL; // ArgInfoData is at the end of extra data section. |
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1329 case DataLayout::bit_data_tag: |
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1330 if (m == NULL && dp->bci() == bci) { |
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1331 return new BitData(dp); |
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1332 } |
45
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|
1333 break; |
14500
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1334 case DataLayout::speculative_trap_data_tag: |
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1335 if (m != NULL) { |
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1336 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
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1337 // data->method() may be null in case of a concurrent |
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1338 // allocation. Assume it's for the same method and use that |
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1339 // entry in that case. |
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1340 if (dp->bci() == bci) { |
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1341 if (data->method() == NULL) { |
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1342 return NULL; |
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1343 } else if (data->method() == m) { |
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1344 return data; |
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1345 } |
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1346 } |
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1347 } |
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1348 break; |
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|
1349 default: |
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1350 fatal(err_msg("unexpected tag %d", dp->tag())); |
0 | 1351 } |
1352 } | |
14500
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1353 return NULL; |
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|
1354 } |
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1355 |
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1356 |
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1357 // Translate a bci to its corresponding extra data, or NULL. |
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1358 ProfileData* MethodData::bci_to_extra_data(int bci, Method* m, bool create_if_missing) { |
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1359 // This code assumes an entry for a SpeculativeTrapData is 2 cells |
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1360 assert(2*DataLayout::compute_size_in_bytes(BitData::static_cell_count()) == |
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1361 DataLayout::compute_size_in_bytes(SpeculativeTrapData::static_cell_count()), |
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1362 "code needs to be adjusted"); |
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1363 |
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1364 DataLayout* dp = extra_data_base(); |
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1365 DataLayout* end = extra_data_limit(); |
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1366 |
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1367 // Allocation in the extra data space has to be atomic because not |
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1368 // all entries have the same size and non atomic concurrent |
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1369 // allocation would result in a corrupted extra data space. |
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1370 while (true) { |
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1371 ProfileData* result = bci_to_extra_data_helper(bci, m, dp); |
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1372 if (result != NULL) { |
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1373 return result; |
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|
1374 } |
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1375 |
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1376 if (create_if_missing && dp < end) { |
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1377 assert(dp->tag() == DataLayout::no_tag || (dp->tag() == DataLayout::speculative_trap_data_tag && m != NULL), "should be free"); |
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1378 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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1379 u1 tag = m == NULL ? DataLayout::bit_data_tag : DataLayout::speculative_trap_data_tag; |
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1380 // SpeculativeTrapData is 2 slots. Make sure we have room. |
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1381 if (m != NULL && next_extra(dp)->tag() != DataLayout::no_tag) { |
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1382 return NULL; |
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1383 } |
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1384 DataLayout temp; |
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1385 temp.initialize(tag, bci, 0); |
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1386 // May have been set concurrently |
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1387 if (dp->header() != temp.header() && !dp->atomic_set_header(temp.header())) { |
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1388 // Allocation failure because of concurrent allocation. Try |
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1389 // again. |
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1390 continue; |
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1391 } |
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1392 assert(dp->tag() == tag, "sane"); |
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1393 assert(dp->bci() == bci, "no concurrent allocation"); |
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1394 if (tag == DataLayout::bit_data_tag) { |
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1395 return new BitData(dp); |
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1396 } else { |
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1397 // If being allocated concurrently, one trap may be lost |
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1398 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
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1399 data->set_method(m); |
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1400 return data; |
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1401 } |
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1402 } |
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1403 return NULL; |
0 | 1404 } |
1405 return NULL; | |
1406 } | |
1407 | |
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1408 ArgInfoData *MethodData::arg_info() { |
45
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1409 DataLayout* dp = extra_data_base(); |
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1410 DataLayout* end = extra_data_limit(); |
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1411 for (; dp < end; dp = next_extra(dp)) { |
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1412 if (dp->tag() == DataLayout::arg_info_data_tag) |
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1413 return new ArgInfoData(dp); |
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1414 } |
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1415 return NULL; |
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|
1416 } |
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|
1417 |
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1418 // Printing |
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1419 |
0 | 1420 #ifndef PRODUCT |
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1421 |
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1422 void MethodData::print_on(outputStream* st) const { |
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1423 assert(is_methodData(), "should be method data"); |
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1424 st->print("method data for "); |
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1425 method()->print_value_on(st); |
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1426 st->cr(); |
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|
1427 print_data_on(st); |
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|
1428 } |
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|
1429 |
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1430 #endif //PRODUCT |
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1431 |
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1432 void MethodData::print_value_on(outputStream* st) const { |
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1433 assert(is_methodData(), "should be method data"); |
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1434 st->print("method data for "); |
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|
1435 method()->print_value_on(st); |
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|
1436 } |
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|
1437 |
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1438 #ifndef PRODUCT |
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1439 void MethodData::print_data_on(outputStream* st) const { |
0 | 1440 ResourceMark rm; |
1441 ProfileData* data = first_data(); | |
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1442 if (_parameters_type_data_di != -1) { |
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1443 parameters_type_data()->print_data_on(st); |
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1444 } |
0 | 1445 for ( ; is_valid(data); data = next_data(data)) { |
1446 st->print("%d", dp_to_di(data->dp())); | |
1447 st->fill_to(6); | |
14500
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1448 data->print_data_on(st, this); |
0 | 1449 } |
45
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1450 st->print_cr("--- Extra data:"); |
0 | 1451 DataLayout* dp = extra_data_base(); |
1452 DataLayout* end = extra_data_limit(); | |
14500
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1453 for (;; dp = next_extra(dp)) { |
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1454 assert(dp < end, "moved past end of extra data"); |
0 | 1455 // No need for "OrderAccess::load_acquire" ops, |
1456 // since the data structure is monotonic. | |
14500
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1457 switch(dp->tag()) { |
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1458 case DataLayout::no_tag: |
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1459 continue; |
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|
1460 case DataLayout::bit_data_tag: |
45
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|
1461 data = new BitData(dp); |
14500
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1462 break; |
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1463 case DataLayout::speculative_trap_data_tag: |
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1464 data = new SpeculativeTrapData(dp); |
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1465 break; |
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1466 case DataLayout::arg_info_data_tag: |
45
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|
1467 data = new ArgInfoData(dp); |
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1468 dp = end; // ArgInfoData is at the end of extra data section. |
14500
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1469 break; |
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|
1470 default: |
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1471 fatal(err_msg("unexpected tag %d", dp->tag())); |
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1472 } |
0 | 1473 st->print("%d", dp_to_di(data->dp())); |
1474 st->fill_to(6); | |
1475 data->print_data_on(st); | |
14500
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1476 if (dp >= end) return; |
0 | 1477 } |
1478 } | |
1479 #endif | |
1480 | |
7956 | 1481 #if INCLUDE_SERVICES |
1482 // Size Statistics | |
1483 void MethodData::collect_statistics(KlassSizeStats *sz) const { | |
1484 int n = sz->count(this); | |
1485 sz->_method_data_bytes += n; | |
1486 sz->_method_all_bytes += n; | |
1487 sz->_rw_bytes += n; | |
1488 } | |
1489 #endif // INCLUDE_SERVICES | |
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|
1490 |
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|
1491 // Verification |
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|
1492 |
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|
1493 void MethodData::verify_on(outputStream* st) { |
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|
1494 guarantee(is_methodData(), "object must be method data"); |
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1495 // guarantee(m->is_perm(), "should be in permspace"); |
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1496 this->verify_data_on(st); |
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|
1497 } |
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|
1498 |
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|
1499 void MethodData::verify_data_on(outputStream* st) { |
0 | 1500 NEEDS_CLEANUP; |
1501 // not yet implemented. | |
1502 } | |
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|
1503 |
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|
1504 bool MethodData::profile_jsr292(methodHandle m, int bci) { |
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|
1505 if (m->is_compiled_lambda_form()) { |
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|
1506 return true; |
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|
1507 } |
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|
1508 |
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|
1509 Bytecode_invoke inv(m , bci); |
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|
1510 return inv.is_invokedynamic() || inv.is_invokehandle(); |
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|
1511 } |
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|
1512 |
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|
1513 int MethodData::profile_arguments_flag() { |
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|
1514 return TypeProfileLevel % 10; |
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|
1515 } |
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|
1516 |
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|
1517 bool MethodData::profile_arguments() { |
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|
1518 return profile_arguments_flag() > no_type_profile && profile_arguments_flag() <= type_profile_all; |
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|
1519 } |
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|
1520 |
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|
1521 bool MethodData::profile_arguments_jsr292_only() { |
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1522 return profile_arguments_flag() == type_profile_jsr292; |
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|
1523 } |
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|
1524 |
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|
1525 bool MethodData::profile_all_arguments() { |
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|
1526 return profile_arguments_flag() == type_profile_all; |
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|
1527 } |
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|
1528 |
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|
1529 bool MethodData::profile_arguments_for_invoke(methodHandle m, int bci) { |
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|
1530 if (!profile_arguments()) { |
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|
1531 return false; |
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|
1532 } |
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|
1533 |
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|
1534 if (profile_all_arguments()) { |
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|
1535 return true; |
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|
1536 } |
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|
1537 |
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|
1538 assert(profile_arguments_jsr292_only(), "inconsistent"); |
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|
1539 return profile_jsr292(m, bci); |
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|
1540 } |
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|
1541 |
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1542 int MethodData::profile_return_flag() { |
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|
1543 return (TypeProfileLevel % 100) / 10; |
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|
1544 } |
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|
1545 |
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|
1546 bool MethodData::profile_return() { |
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|
1547 return profile_return_flag() > no_type_profile && profile_return_flag() <= type_profile_all; |
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|
1548 } |
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|
1549 |
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|
1550 bool MethodData::profile_return_jsr292_only() { |
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1551 return profile_return_flag() == type_profile_jsr292; |
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|
1552 } |
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|
1553 |
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diff
changeset
|
1554 bool MethodData::profile_all_return() { |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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12875
diff
changeset
|
1555 return profile_return_flag() == type_profile_all; |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1556 } |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1557 |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1558 bool MethodData::profile_return_for_invoke(methodHandle m, int bci) { |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1559 if (!profile_return()) { |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1560 return false; |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1561 } |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1562 |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1563 if (profile_all_return()) { |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1564 return true; |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1565 } |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1566 |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
changeset
|
1567 assert(profile_return_jsr292_only(), "inconsistent"); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
parents:
12875
diff
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|
1568 return profile_jsr292(m, bci); |
ce0cc25bc5e2
8026054: New type profiling points: type of return values at calls
roland
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diff
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|
1569 } |
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1570 |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1571 int MethodData::profile_parameters_flag() { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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parents:
12882
diff
changeset
|
1572 return TypeProfileLevel / 100; |
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 |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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parents:
12882
diff
changeset
|
1575 bool MethodData::profile_parameters() { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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parents:
12882
diff
changeset
|
1576 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
|
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
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12882
diff
changeset
|
1579 bool MethodData::profile_parameters_jsr292_only() { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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diff
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|
1580 return profile_parameters_flag() == type_profile_jsr292; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
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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
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parents:
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diff
changeset
|
1583 bool MethodData::profile_all_parameters() { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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diff
changeset
|
1584 return profile_parameters_flag() == type_profile_all; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
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diff
changeset
|
1585 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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12882
diff
changeset
|
1586 |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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diff
changeset
|
1587 bool MethodData::profile_parameters_for_method(methodHandle m) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
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diff
changeset
|
1588 if (!profile_parameters()) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1589 return false; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1590 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
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diff
changeset
|
1591 |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1592 if (profile_all_parameters()) { |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1593 return true; |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1594 } |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1595 |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
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diff
changeset
|
1596 assert(profile_parameters_jsr292_only(), "inconsistent"); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
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diff
changeset
|
1597 return m->is_compiled_lambda_form(); |
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
1598 } |
14500
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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diff
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|
1599 |
fdad2932c73f
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|
1600 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
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diff
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|
1601 if (shift == 0) { |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1602 return; |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1603 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1604 if (!reset) { |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1605 // 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
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diff
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|
1606 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
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|
1607 intptr_t* end = (intptr_t*)next_extra(dp); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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14435
diff
changeset
|
1608 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
|
1609 *(ptr-shift) = *ptr; |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1610 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1611 } else { |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1612 // Reset "shift" cells stopping at dp |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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diff
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|
1613 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
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|
1614 intptr_t* end = (intptr_t*)dp; |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
changeset
|
1615 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
|
1616 *ptr = 0; |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1617 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1618 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1619 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1620 |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1621 // 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
|
1622 // method |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
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|
1623 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
changeset
|
1624 DataLayout* dp = extra_data_base(); |
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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|
1625 DataLayout* end = extra_data_limit(); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1626 |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1627 int shift = 0; |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1628 for (; dp < end; dp = next_extra(dp)) { |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1629 switch(dp->tag()) { |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1630 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
|
1631 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1632 Method* m = data->method(); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1633 assert(m != NULL, "should have a method"); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1634 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:
14435
diff
changeset
|
1635 // "shift" accumulates the number of cells for dead |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1636 // SpeculativeTrapData entries that have been seen so |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1637 // 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
|
1638 // 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
|
1639 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
parents:
14435
diff
changeset
|
1640 } else { |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1641 // Shift this entry left if it follows dead |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1642 // SpeculativeTrapData entries |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1643 clean_extra_data_helper(dp, shift); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1644 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1645 break; |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1646 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1647 case DataLayout::bit_data_tag: |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1648 // Shift this entry left if it follows dead SpeculativeTrapData |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1649 // entries |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1650 clean_extra_data_helper(dp, shift); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1651 continue; |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1652 case DataLayout::no_tag: |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1653 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
|
1654 // We are at end of the live trap entries. The previous "shift" |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1655 // cells contain entries that are either dead or were shifted |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1656 // left. They need to be reset to no_tag |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1657 clean_extra_data_helper(dp, shift, true); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1658 return; |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1659 default: |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1660 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
|
1661 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1662 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1663 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1664 |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1665 // Verify there's no unloaded method referenced by a |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1666 // SpeculativeTrapData entry |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1667 void MethodData::verify_extra_data_clean(BoolObjectClosure* is_alive) { |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1668 #ifdef ASSERT |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1669 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
|
1670 DataLayout* end = extra_data_limit(); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1671 |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1672 for (; dp < end; dp = next_extra(dp)) { |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1673 switch(dp->tag()) { |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1674 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
|
1675 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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diff
changeset
|
1676 Method* m = data->method(); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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diff
changeset
|
1677 assert(m != NULL && m->method_holder()->is_loader_alive(is_alive), "Method should exist"); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1678 break; |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1679 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1680 case DataLayout::bit_data_tag: |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1681 continue; |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1682 case DataLayout::no_tag: |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
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|
1683 case DataLayout::arg_info_data_tag: |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
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|
1684 return; |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1685 default: |
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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|
1686 fatal(err_msg("unexpected tag %d", dp->tag())); |
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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|
1687 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1688 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1689 #endif |
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8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1690 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1691 |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1692 void MethodData::clean_method_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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|
1693 for (ProfileData* data = first_data(); |
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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|
1694 is_valid(data); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1695 data = next_data(data)) { |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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diff
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|
1696 data->clean_weak_klass_links(is_alive); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
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|
1697 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
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parents:
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diff
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|
1698 ParametersTypeData* parameters = parameters_type_data(); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1699 if (parameters != NULL) { |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
14435
diff
changeset
|
1700 parameters->clean_weak_klass_links(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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|
1701 } |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
changeset
|
1702 |
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8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents:
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diff
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|
1703 clean_extra_data(is_alive); |
fdad2932c73f
8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
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diff
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|
1704 verify_extra_data_clean(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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|
1705 } |
14860
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
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diff
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|
1706 |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
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diff
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|
1707 // Remove SpeculativeTrapData entries that reference a redefined |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
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diff
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|
1708 // method |
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fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1709 void MethodData::clean_weak_method_extra_data() { |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
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|
1710 DataLayout* dp = extra_data_base(); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
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|
1711 DataLayout* end = extra_data_limit(); |
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fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
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diff
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|
1712 |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
changeset
|
1713 int shift = 0; |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
changeset
|
1714 for (; dp < end; dp = next_extra(dp)) { |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
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|
1715 switch(dp->tag()) { |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1716 case DataLayout::speculative_trap_data_tag: { |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
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|
1717 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
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|
1718 Method* m = data->method(); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
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|
1719 assert(m != NULL, "should have a method"); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
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|
1720 if (!m->on_stack()) { |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1721 // "shift" accumulates the number of cells for dead |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
changeset
|
1722 // SpeculativeTrapData entries that have been seen so |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
changeset
|
1723 // far. Following entries must be shifted left by that many |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
changeset
|
1724 // cells to remove the dead SpeculativeTrapData entries. |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1725 shift += (int)((intptr_t*)next_extra(dp) - (intptr_t*)dp); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
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|
1726 } else { |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
changeset
|
1727 // Shift this entry left if it follows dead |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1728 // SpeculativeTrapData entries |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1729 clean_extra_data_helper(dp, shift); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1730 } |
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fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1731 break; |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1732 } |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1733 case DataLayout::bit_data_tag: |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1734 // Shift this entry left if it follows dead SpeculativeTrapData |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1735 // entries |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1736 clean_extra_data_helper(dp, shift); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1737 continue; |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1738 case DataLayout::no_tag: |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1739 case DataLayout::arg_info_data_tag: |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1740 // We are at end of the live trap entries. The previous "shift" |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1741 // cells contain entries that are either dead or were shifted |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1742 // left. They need to be reset to no_tag |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1743 clean_extra_data_helper(dp, shift, true); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1744 return; |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1745 default: |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1746 fatal(err_msg("unexpected tag %d", dp->tag())); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1747 } |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1748 } |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1749 } |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1750 |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1751 // Verify there's no redefined method referenced by a |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1752 // SpeculativeTrapData entry |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1753 void MethodData::verify_weak_method_extra_data_clean() { |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1754 #ifdef ASSERT |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1755 DataLayout* dp = extra_data_base(); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1756 DataLayout* end = extra_data_limit(); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1757 |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1758 for (; dp < end; dp = next_extra(dp)) { |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1759 switch(dp->tag()) { |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1760 case DataLayout::speculative_trap_data_tag: { |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1761 SpeculativeTrapData* data = new SpeculativeTrapData(dp); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1762 Method* m = data->method(); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
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14543
diff
changeset
|
1763 assert(m != NULL && m->on_stack(), "Method should exist"); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1764 break; |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1765 } |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1766 case DataLayout::bit_data_tag: |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1767 continue; |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1768 case DataLayout::no_tag: |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1769 case DataLayout::arg_info_data_tag: |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1770 return; |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1771 default: |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1772 fatal(err_msg("unexpected tag %d", dp->tag())); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1773 } |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1774 } |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1775 #endif |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1776 } |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1777 |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1778 void MethodData::clean_weak_method_links() { |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1779 for (ProfileData* data = first_data(); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1780 is_valid(data); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
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14543
diff
changeset
|
1781 data = next_data(data)) { |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1782 data->clean_weak_method_links(); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1783 } |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1784 |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1785 clean_weak_method_extra_data(); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14543
diff
changeset
|
1786 verify_weak_method_extra_data_clean(); |
8762b6b8fbb6
fix scanning of method data for redefined methods
Tom Rodriguez <tom.rodriguez@oracle.com>
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diff
changeset
|
1787 } |