Mercurial > hg > truffle
annotate src/share/vm/ci/ciMethod.hpp @ 10278:6f3fd5150b67
6934604: enable parts of EliminateAutoBox by default
Summary: Resurrected autobox elimination code and enabled part of it by default.
Reviewed-by: roland, twisti
| author | kvn |
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| date | Wed, 08 May 2013 15:08:01 -0700 |
| parents | 247342108a11 |
| children | f98f5d48f511 |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_CI_CIMETHOD_HPP |
| 26 #define SHARE_VM_CI_CIMETHOD_HPP | |
| 27 | |
| 28 #include "ci/ciFlags.hpp" | |
| 29 #include "ci/ciInstanceKlass.hpp" | |
| 30 #include "ci/ciObject.hpp" | |
| 31 #include "ci/ciSignature.hpp" | |
| 32 #include "compiler/methodLiveness.hpp" | |
| 33 #include "prims/methodHandles.hpp" | |
| 34 #include "utilities/bitMap.hpp" | |
| 35 | |
| 0 | 36 class ciMethodBlocks; |
| 37 class MethodLiveness; | |
| 38 class BitMap; | |
| 39 class Arena; | |
| 40 class BCEscapeAnalyzer; | |
| 41 | |
| 42 | |
| 43 // ciMethod | |
| 44 // | |
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45 // This class represents a Method* in the HotSpot virtual |
| 0 | 46 // machine. |
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47 class ciMethod : public ciMetadata { |
| 0 | 48 friend class CompileBroker; |
| 49 CI_PACKAGE_ACCESS | |
| 50 friend class ciEnv; | |
| 51 friend class ciExceptionHandlerStream; | |
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52 friend class ciBytecodeStream; |
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53 friend class ciMethodHandle; |
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54 friend class ciReplay; |
| 0 | 55 |
| 56 private: | |
| 57 // General method information. | |
| 58 ciFlags _flags; | |
| 59 ciSymbol* _name; | |
| 60 ciInstanceKlass* _holder; | |
| 61 ciSignature* _signature; | |
| 62 ciMethodData* _method_data; | |
| 63 ciMethodBlocks* _method_blocks; | |
| 64 | |
| 65 // Code attributes. | |
| 66 int _code_size; | |
| 67 int _max_stack; | |
| 68 int _max_locals; | |
| 69 vmIntrinsics::ID _intrinsic_id; | |
| 70 int _handler_count; | |
| 71 int _interpreter_invocation_count; | |
| 72 int _interpreter_throwout_count; | |
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73 int _instructions_size; |
| 0 | 74 |
| 75 bool _uses_monitors; | |
| 76 bool _balanced_monitors; | |
| 1783 | 77 bool _is_c1_compilable; |
| 78 bool _is_c2_compilable; | |
| 0 | 79 bool _can_be_statically_bound; |
| 80 | |
| 81 // Lazy fields, filled in on demand | |
| 82 address _code; | |
| 83 ciExceptionHandler** _exception_handlers; | |
| 84 | |
| 85 // Optional liveness analyzer. | |
| 86 MethodLiveness* _liveness; | |
| 1692 | 87 #if defined(COMPILER2) || defined(SHARK) |
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88 ciTypeFlow* _flow; |
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89 BCEscapeAnalyzer* _bcea; |
| 0 | 90 #endif |
| 91 | |
| 92 ciMethod(methodHandle h_m); | |
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93 ciMethod(ciInstanceKlass* holder, ciSymbol* name, ciSymbol* signature, ciInstanceKlass* accessor); |
| 0 | 94 |
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95 Method* get_Method() const { |
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96 Method* m = (Method*)_metadata; |
| 0 | 97 assert(m != NULL, "illegal use of unloaded method"); |
| 98 return m; | |
| 99 } | |
| 100 | |
| 101 oop loader() const { return _holder->loader(); } | |
| 102 | |
| 103 const char* type_string() { return "ciMethod"; } | |
| 104 | |
| 105 void print_impl(outputStream* st); | |
| 106 | |
| 107 void load_code(); | |
| 108 | |
| 109 void check_is_loaded() const { assert(is_loaded(), "not loaded"); } | |
| 110 | |
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111 bool ensure_method_data(methodHandle h_m); |
| 0 | 112 |
| 113 void code_at_put(int bci, Bytecodes::Code code) { | |
| 114 Bytecodes::check(code); | |
| 115 assert(0 <= bci && bci < code_size(), "valid bci"); | |
| 116 address bcp = _code + bci; | |
| 117 *bcp = code; | |
| 118 } | |
| 119 | |
| 120 public: | |
| 121 // Basic method information. | |
| 122 ciFlags flags() const { check_is_loaded(); return _flags; } | |
| 123 ciSymbol* name() const { return _name; } | |
| 124 ciInstanceKlass* holder() const { return _holder; } | |
| 125 ciMethodData* method_data(); | |
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126 ciMethodData* method_data_or_null(); |
| 0 | 127 |
| 128 // Signature information. | |
| 129 ciSignature* signature() const { return _signature; } | |
| 130 ciType* return_type() const { return _signature->return_type(); } | |
| 131 int arg_size_no_receiver() const { return _signature->size(); } | |
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132 // Can only be used on loaded ciMethods |
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133 int arg_size() const { |
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134 check_is_loaded(); |
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135 return _signature->size() + (_flags.is_static() ? 0 : 1); |
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136 } |
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137 // Report the number of elements on stack when invoking this method. |
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138 // This is different than the regular arg_size because invokedynamic |
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139 // has an implicit receiver. |
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140 int invoke_arg_size(Bytecodes::Code code) const { |
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141 if (is_loaded()) { |
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142 return arg_size(); |
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143 } else { |
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144 int arg_size = _signature->size(); |
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145 // Add a receiver argument, maybe: |
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146 if (code != Bytecodes::_invokestatic && |
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147 code != Bytecodes::_invokedynamic) { |
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148 arg_size++; |
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149 } |
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150 return arg_size; |
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151 } |
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152 } |
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153 |
| 0 | 154 |
| 155 // Method code and related information. | |
| 156 address code() { if (_code == NULL) load_code(); return _code; } | |
| 157 int code_size() const { check_is_loaded(); return _code_size; } | |
| 158 int max_stack() const { check_is_loaded(); return _max_stack; } | |
| 159 int max_locals() const { check_is_loaded(); return _max_locals; } | |
| 160 vmIntrinsics::ID intrinsic_id() const { check_is_loaded(); return _intrinsic_id; } | |
| 161 bool has_exception_handlers() const { check_is_loaded(); return _handler_count > 0; } | |
| 162 int exception_table_length() const { check_is_loaded(); return _handler_count; } | |
| 163 int interpreter_invocation_count() const { check_is_loaded(); return _interpreter_invocation_count; } | |
| 164 int interpreter_throwout_count() const { check_is_loaded(); return _interpreter_throwout_count; } | |
| 165 | |
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166 // Code size for inlining decisions. |
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167 int code_size_for_inlining(); |
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168 |
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169 bool caller_sensitive() { return get_Method()->caller_sensitive(); } |
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170 bool force_inline() { return get_Method()->force_inline(); } |
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171 bool dont_inline() { return get_Method()->dont_inline(); } |
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172 |
| 1783 | 173 int comp_level(); |
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174 int highest_osr_comp_level(); |
| 1783 | 175 |
| 0 | 176 Bytecodes::Code java_code_at_bci(int bci) { |
| 177 address bcp = code() + bci; | |
| 2142 | 178 return Bytecodes::java_code_at(NULL, bcp); |
| 0 | 179 } |
| 180 BCEscapeAnalyzer *get_bcea(); | |
| 181 ciMethodBlocks *get_method_blocks(); | |
| 182 | |
| 183 bool has_linenumber_table() const; // length unknown until decompression | |
| 184 u_char* compressed_linenumber_table() const; // not preserved by gc | |
| 185 | |
| 186 int line_number_from_bci(int bci) const; | |
| 187 | |
| 188 // Runtime information. | |
| 189 int vtable_index(); | |
| 1692 | 190 #ifdef SHARK |
| 191 int itable_index(); | |
| 192 #endif // SHARK | |
| 0 | 193 address native_entry(); |
| 194 address interpreter_entry(); | |
| 195 | |
| 196 // Analysis and profiling. | |
| 197 // | |
| 198 // Usage note: liveness_at_bci and init_vars should be wrapped in ResourceMarks. | |
| 199 bool has_monitor_bytecodes() const { return _uses_monitors; } | |
| 200 bool has_balanced_monitors(); | |
| 201 | |
| 991 | 202 // Returns a bitmap indicating which locals are required to be |
| 203 // maintained as live for deopt. raw_liveness_at_bci is always the | |
| 204 // direct output of the liveness computation while liveness_at_bci | |
| 205 // may mark all locals as live to improve support for debugging Java | |
| 206 // code by maintaining the state of as many locals as possible. | |
| 207 MethodLivenessResult raw_liveness_at_bci(int bci); | |
| 0 | 208 MethodLivenessResult liveness_at_bci(int bci); |
| 209 | |
| 210 // Get the interpreters viewpoint on oop liveness. MethodLiveness is | |
| 211 // conservative in the sense that it may consider locals to be live which | |
| 212 // cannot be live, like in the case where a local could contain an oop or | |
| 213 // a primitive along different paths. In that case the local must be | |
| 214 // dead when those paths merge. Since the interpreter's viewpoint is | |
| 215 // used when gc'ing an interpreter frame we need to use its viewpoint | |
| 216 // during OSR when loading the locals. | |
| 217 | |
| 218 BitMap live_local_oops_at_bci(int bci); | |
| 219 | |
| 220 #ifdef COMPILER1 | |
| 221 const BitMap bci_block_start(); | |
| 222 #endif | |
| 223 | |
| 224 ciTypeFlow* get_flow_analysis(); | |
| 225 ciTypeFlow* get_osr_flow_analysis(int osr_bci); // alternate entry point | |
| 226 ciCallProfile call_profile_at_bci(int bci); | |
| 227 int interpreter_call_site_count(int bci); | |
| 228 | |
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229 ciField* get_field_at_bci( int bci, bool &will_link); |
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230 ciMethod* get_method_at_bci(int bci, bool &will_link, ciSignature* *declared_signature); |
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231 |
| 0 | 232 // Given a certain calling environment, find the monomorphic target |
| 233 // for the call. Return NULL if the call is not monomorphic in | |
| 234 // its calling environment. | |
| 235 ciMethod* find_monomorphic_target(ciInstanceKlass* caller, | |
| 236 ciInstanceKlass* callee_holder, | |
| 237 ciInstanceKlass* actual_receiver); | |
| 238 | |
| 239 // Given a known receiver klass, find the target for the call. | |
| 240 // Return NULL if the call has no target or is abstract. | |
| 241 ciMethod* resolve_invoke(ciKlass* caller, ciKlass* exact_receiver); | |
| 242 | |
| 243 // Find the proper vtable index to invoke this method. | |
| 244 int resolve_vtable_index(ciKlass* caller, ciKlass* receiver); | |
| 245 | |
| 246 // Compilation directives | |
| 247 bool should_exclude(); | |
| 248 bool should_inline(); | |
| 249 bool should_not_inline(); | |
| 250 bool should_print_assembly(); | |
| 251 bool break_at_execute(); | |
| 252 bool has_option(const char *option); | |
| 253 bool can_be_compiled(); | |
| 254 bool can_be_osr_compiled(int entry_bci); | |
| 7998 | 255 void set_not_compilable(const char* reason = NULL); |
| 0 | 256 bool has_compiled_code(); |
| 257 void log_nmethod_identity(xmlStream* log); | |
| 258 bool is_not_reached(int bci); | |
| 259 bool was_executed_more_than(int times); | |
| 260 bool has_unloaded_classes_in_signature(); | |
| 261 bool is_klass_loaded(int refinfo_index, bool must_be_resolved) const; | |
| 262 bool check_call(int refinfo_index, bool is_static) const; | |
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263 bool ensure_method_data(); // make sure it exists in the VM also |
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264 address ensure_method_counters(); |
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265 int instructions_size(); |
| 0 | 266 int scale_count(int count, float prof_factor = 1.); // make MDO count commensurate with IIC |
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267 |
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268 // Stack walking support |
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269 bool is_ignored_by_security_stack_walk() const; |
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270 |
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271 // JSR 292 support |
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272 bool is_method_handle_intrinsic() const; |
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273 bool is_compiled_lambda_form() const; |
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274 bool has_member_arg() const; |
| 0 | 275 |
| 276 // What kind of ciObject is this? | |
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277 bool is_method() const { return true; } |
| 0 | 278 |
| 279 // Java access flags | |
| 280 bool is_public () const { return flags().is_public(); } | |
| 281 bool is_private () const { return flags().is_private(); } | |
| 282 bool is_protected () const { return flags().is_protected(); } | |
| 283 bool is_static () const { return flags().is_static(); } | |
| 284 bool is_final () const { return flags().is_final(); } | |
| 285 bool is_synchronized() const { return flags().is_synchronized(); } | |
| 286 bool is_native () const { return flags().is_native(); } | |
| 287 bool is_interface () const { return flags().is_interface(); } | |
| 288 bool is_abstract () const { return flags().is_abstract(); } | |
| 289 bool is_strict () const { return flags().is_strict(); } | |
| 290 | |
| 291 // Other flags | |
| 292 bool is_empty_method() const; | |
| 293 bool is_vanilla_constructor() const; | |
| 294 bool is_final_method() const { return is_final() || holder()->is_final(); } | |
| 295 bool has_loops () const; | |
| 296 bool has_jsrs () const; | |
| 297 bool is_accessor () const; | |
| 298 bool is_initializer () const; | |
| 299 bool can_be_statically_bound() const { return _can_be_statically_bound; } | |
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6830717: replay of compilations would help with debugging
minqi
parents:
6725
diff
changeset
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300 void dump_replay_data(outputStream* st); |
| 10278 | 301 bool is_boxing_method() const; |
| 302 bool is_unboxing_method() const; | |
| 0 | 303 |
| 304 // Print the bytecodes of this method. | |
| 305 void print_codes_on(outputStream* st); | |
| 306 void print_codes() { | |
| 307 print_codes_on(tty); | |
| 308 } | |
| 309 void print_codes_on(int from, int to, outputStream* st); | |
| 310 | |
| 311 // Print the name of this method in various incarnations. | |
| 312 void print_name(outputStream* st = tty); | |
| 313 void print_short_name(outputStream* st = tty); | |
| 314 }; | |
| 1972 | 315 |
| 316 #endif // SHARE_VM_CI_CIMETHOD_HPP |