Wed, 03 Jul 2019 20:42:37 +0800
Merge
aoqi@0 | 1 | /* |
coleenp@8739 | 2 | * Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@0 | 25 | #ifndef SHARE_VM_CI_CIMETHOD_HPP |
aoqi@0 | 26 | #define SHARE_VM_CI_CIMETHOD_HPP |
aoqi@0 | 27 | |
aoqi@0 | 28 | #include "ci/ciFlags.hpp" |
aoqi@0 | 29 | #include "ci/ciInstanceKlass.hpp" |
aoqi@0 | 30 | #include "ci/ciObject.hpp" |
aoqi@0 | 31 | #include "ci/ciSignature.hpp" |
aoqi@0 | 32 | #include "compiler/methodLiveness.hpp" |
aoqi@0 | 33 | #include "prims/methodHandles.hpp" |
aoqi@0 | 34 | #include "utilities/bitMap.hpp" |
aoqi@0 | 35 | |
aoqi@0 | 36 | class ciMethodBlocks; |
aoqi@0 | 37 | class MethodLiveness; |
aoqi@0 | 38 | class BitMap; |
aoqi@0 | 39 | class Arena; |
aoqi@0 | 40 | class BCEscapeAnalyzer; |
aoqi@0 | 41 | |
aoqi@0 | 42 | |
aoqi@0 | 43 | // ciMethod |
aoqi@0 | 44 | // |
aoqi@0 | 45 | // This class represents a Method* in the HotSpot virtual |
aoqi@0 | 46 | // machine. |
aoqi@0 | 47 | class ciMethod : public ciMetadata { |
aoqi@0 | 48 | friend class CompileBroker; |
aoqi@0 | 49 | CI_PACKAGE_ACCESS |
aoqi@0 | 50 | friend class ciEnv; |
aoqi@0 | 51 | friend class ciExceptionHandlerStream; |
aoqi@0 | 52 | friend class ciBytecodeStream; |
aoqi@0 | 53 | friend class ciMethodHandle; |
aoqi@0 | 54 | friend class ciReplay; |
aoqi@0 | 55 | |
aoqi@0 | 56 | private: |
aoqi@0 | 57 | // General method information. |
aoqi@0 | 58 | ciFlags _flags; |
aoqi@0 | 59 | ciSymbol* _name; |
aoqi@0 | 60 | ciInstanceKlass* _holder; |
aoqi@0 | 61 | ciSignature* _signature; |
aoqi@0 | 62 | ciMethodData* _method_data; |
aoqi@0 | 63 | ciMethodBlocks* _method_blocks; |
aoqi@0 | 64 | |
aoqi@0 | 65 | // Code attributes. |
aoqi@0 | 66 | int _code_size; |
aoqi@0 | 67 | int _max_stack; |
aoqi@0 | 68 | int _max_locals; |
aoqi@0 | 69 | vmIntrinsics::ID _intrinsic_id; |
aoqi@0 | 70 | int _handler_count; |
aoqi@0 | 71 | int _interpreter_invocation_count; |
aoqi@0 | 72 | int _interpreter_throwout_count; |
aoqi@0 | 73 | int _instructions_size; |
aoqi@0 | 74 | int _size_of_parameters; |
aoqi@0 | 75 | |
aoqi@0 | 76 | bool _uses_monitors; |
aoqi@0 | 77 | bool _balanced_monitors; |
aoqi@0 | 78 | bool _is_c1_compilable; |
aoqi@0 | 79 | bool _is_c2_compilable; |
aoqi@0 | 80 | bool _can_be_statically_bound; |
aoqi@0 | 81 | |
aoqi@0 | 82 | // Lazy fields, filled in on demand |
aoqi@0 | 83 | address _code; |
aoqi@0 | 84 | ciExceptionHandler** _exception_handlers; |
aoqi@0 | 85 | |
aoqi@0 | 86 | // Optional liveness analyzer. |
aoqi@0 | 87 | MethodLiveness* _liveness; |
aoqi@0 | 88 | #if defined(COMPILER2) || defined(SHARK) |
aoqi@0 | 89 | ciTypeFlow* _flow; |
aoqi@0 | 90 | BCEscapeAnalyzer* _bcea; |
aoqi@0 | 91 | #endif |
aoqi@0 | 92 | |
vlivanov@7384 | 93 | ciMethod(methodHandle h_m, ciInstanceKlass* holder); |
aoqi@0 | 94 | ciMethod(ciInstanceKlass* holder, ciSymbol* name, ciSymbol* signature, ciInstanceKlass* accessor); |
aoqi@0 | 95 | |
aoqi@0 | 96 | Method* get_Method() const { |
aoqi@0 | 97 | Method* m = (Method*)_metadata; |
aoqi@0 | 98 | assert(m != NULL, "illegal use of unloaded method"); |
aoqi@0 | 99 | return m; |
aoqi@0 | 100 | } |
aoqi@0 | 101 | |
aoqi@0 | 102 | oop loader() const { return _holder->loader(); } |
aoqi@0 | 103 | |
aoqi@0 | 104 | const char* type_string() { return "ciMethod"; } |
aoqi@0 | 105 | |
aoqi@0 | 106 | void print_impl(outputStream* st); |
aoqi@0 | 107 | |
aoqi@0 | 108 | void load_code(); |
aoqi@0 | 109 | |
aoqi@0 | 110 | void check_is_loaded() const { assert(is_loaded(), "not loaded"); } |
aoqi@0 | 111 | |
aoqi@0 | 112 | bool ensure_method_data(methodHandle h_m); |
aoqi@0 | 113 | |
aoqi@0 | 114 | void code_at_put(int bci, Bytecodes::Code code) { |
aoqi@0 | 115 | Bytecodes::check(code); |
aoqi@0 | 116 | assert(0 <= bci && bci < code_size(), "valid bci"); |
aoqi@0 | 117 | address bcp = _code + bci; |
aoqi@0 | 118 | *bcp = code; |
aoqi@0 | 119 | } |
aoqi@0 | 120 | |
aoqi@0 | 121 | // Check bytecode and profile data collected are compatible |
aoqi@0 | 122 | void assert_virtual_call_type_ok(int bci); |
aoqi@0 | 123 | void assert_call_type_ok(int bci); |
aoqi@0 | 124 | |
aoqi@0 | 125 | public: |
aoqi@0 | 126 | // Basic method information. |
aoqi@0 | 127 | ciFlags flags() const { check_is_loaded(); return _flags; } |
aoqi@0 | 128 | ciSymbol* name() const { return _name; } |
aoqi@0 | 129 | ciInstanceKlass* holder() const { return _holder; } |
aoqi@0 | 130 | ciMethodData* method_data(); |
aoqi@0 | 131 | ciMethodData* method_data_or_null(); |
aoqi@0 | 132 | |
aoqi@0 | 133 | // Signature information. |
aoqi@0 | 134 | ciSignature* signature() const { return _signature; } |
aoqi@0 | 135 | ciType* return_type() const { return _signature->return_type(); } |
aoqi@0 | 136 | int arg_size_no_receiver() const { return _signature->size(); } |
aoqi@0 | 137 | // Can only be used on loaded ciMethods |
aoqi@0 | 138 | int arg_size() const { |
aoqi@0 | 139 | check_is_loaded(); |
aoqi@0 | 140 | return _signature->size() + (_flags.is_static() ? 0 : 1); |
aoqi@0 | 141 | } |
aoqi@0 | 142 | // Report the number of elements on stack when invoking this method. |
aoqi@0 | 143 | // This is different than the regular arg_size because invokedynamic |
aoqi@0 | 144 | // has an implicit receiver. |
aoqi@0 | 145 | int invoke_arg_size(Bytecodes::Code code) const { |
aoqi@0 | 146 | if (is_loaded()) { |
aoqi@0 | 147 | return arg_size(); |
aoqi@0 | 148 | } else { |
aoqi@0 | 149 | int arg_size = _signature->size(); |
aoqi@0 | 150 | // Add a receiver argument, maybe: |
aoqi@0 | 151 | if (code != Bytecodes::_invokestatic && |
aoqi@0 | 152 | code != Bytecodes::_invokedynamic) { |
aoqi@0 | 153 | arg_size++; |
aoqi@0 | 154 | } |
aoqi@0 | 155 | return arg_size; |
aoqi@0 | 156 | } |
aoqi@0 | 157 | } |
aoqi@0 | 158 | |
aoqi@0 | 159 | |
aoqi@0 | 160 | // Method code and related information. |
aoqi@0 | 161 | address code() { if (_code == NULL) load_code(); return _code; } |
aoqi@0 | 162 | int code_size() const { check_is_loaded(); return _code_size; } |
aoqi@0 | 163 | int max_stack() const { check_is_loaded(); return _max_stack; } |
aoqi@0 | 164 | int max_locals() const { check_is_loaded(); return _max_locals; } |
aoqi@0 | 165 | vmIntrinsics::ID intrinsic_id() const { check_is_loaded(); return _intrinsic_id; } |
aoqi@0 | 166 | bool has_exception_handlers() const { check_is_loaded(); return _handler_count > 0; } |
aoqi@0 | 167 | int exception_table_length() const { check_is_loaded(); return _handler_count; } |
aoqi@0 | 168 | int interpreter_invocation_count() const { check_is_loaded(); return _interpreter_invocation_count; } |
aoqi@0 | 169 | int interpreter_throwout_count() const { check_is_loaded(); return _interpreter_throwout_count; } |
aoqi@0 | 170 | int size_of_parameters() const { check_is_loaded(); return _size_of_parameters; } |
aoqi@0 | 171 | |
aoqi@0 | 172 | // Code size for inlining decisions. |
aoqi@0 | 173 | int code_size_for_inlining(); |
aoqi@0 | 174 | |
vlivanov@7890 | 175 | bool caller_sensitive() const { return get_Method()->caller_sensitive(); } |
vlivanov@7890 | 176 | bool force_inline() const { return get_Method()->force_inline(); } |
vlivanov@7890 | 177 | bool dont_inline() const { return get_Method()->dont_inline(); } |
aoqi@0 | 178 | |
aoqi@0 | 179 | int comp_level(); |
aoqi@0 | 180 | int highest_osr_comp_level(); |
aoqi@0 | 181 | |
aoqi@0 | 182 | Bytecodes::Code java_code_at_bci(int bci) { |
aoqi@0 | 183 | address bcp = code() + bci; |
aoqi@0 | 184 | return Bytecodes::java_code_at(NULL, bcp); |
aoqi@0 | 185 | } |
aoqi@0 | 186 | Bytecodes::Code raw_code_at_bci(int bci) { |
aoqi@0 | 187 | address bcp = code() + bci; |
aoqi@0 | 188 | return Bytecodes::code_at(NULL, bcp); |
aoqi@0 | 189 | } |
aoqi@0 | 190 | BCEscapeAnalyzer *get_bcea(); |
aoqi@0 | 191 | ciMethodBlocks *get_method_blocks(); |
aoqi@0 | 192 | |
aoqi@0 | 193 | bool has_linenumber_table() const; // length unknown until decompression |
aoqi@0 | 194 | u_char* compressed_linenumber_table() const; // not preserved by gc |
aoqi@0 | 195 | |
aoqi@0 | 196 | int line_number_from_bci(int bci) const; |
aoqi@0 | 197 | |
aoqi@0 | 198 | // Runtime information. |
aoqi@0 | 199 | int vtable_index(); |
aoqi@0 | 200 | #ifdef SHARK |
aoqi@0 | 201 | int itable_index(); |
aoqi@0 | 202 | #endif // SHARK |
aoqi@0 | 203 | address native_entry(); |
aoqi@0 | 204 | address interpreter_entry(); |
aoqi@0 | 205 | |
aoqi@0 | 206 | // Analysis and profiling. |
aoqi@0 | 207 | // |
aoqi@0 | 208 | // Usage note: liveness_at_bci and init_vars should be wrapped in ResourceMarks. |
aoqi@0 | 209 | bool has_monitor_bytecodes() const { return _uses_monitors; } |
aoqi@0 | 210 | bool has_balanced_monitors(); |
aoqi@0 | 211 | |
aoqi@0 | 212 | // Returns a bitmap indicating which locals are required to be |
aoqi@0 | 213 | // maintained as live for deopt. raw_liveness_at_bci is always the |
aoqi@0 | 214 | // direct output of the liveness computation while liveness_at_bci |
aoqi@0 | 215 | // may mark all locals as live to improve support for debugging Java |
aoqi@0 | 216 | // code by maintaining the state of as many locals as possible. |
aoqi@0 | 217 | MethodLivenessResult raw_liveness_at_bci(int bci); |
aoqi@0 | 218 | MethodLivenessResult liveness_at_bci(int bci); |
aoqi@0 | 219 | |
aoqi@0 | 220 | // Get the interpreters viewpoint on oop liveness. MethodLiveness is |
aoqi@0 | 221 | // conservative in the sense that it may consider locals to be live which |
aoqi@0 | 222 | // cannot be live, like in the case where a local could contain an oop or |
aoqi@0 | 223 | // a primitive along different paths. In that case the local must be |
aoqi@0 | 224 | // dead when those paths merge. Since the interpreter's viewpoint is |
aoqi@0 | 225 | // used when gc'ing an interpreter frame we need to use its viewpoint |
aoqi@0 | 226 | // during OSR when loading the locals. |
aoqi@0 | 227 | |
aoqi@0 | 228 | BitMap live_local_oops_at_bci(int bci); |
aoqi@0 | 229 | |
aoqi@0 | 230 | #ifdef COMPILER1 |
aoqi@0 | 231 | const BitMap bci_block_start(); |
aoqi@0 | 232 | #endif |
aoqi@0 | 233 | |
aoqi@0 | 234 | ciTypeFlow* get_flow_analysis(); |
aoqi@0 | 235 | ciTypeFlow* get_osr_flow_analysis(int osr_bci); // alternate entry point |
aoqi@0 | 236 | ciCallProfile call_profile_at_bci(int bci); |
aoqi@0 | 237 | int interpreter_call_site_count(int bci); |
aoqi@0 | 238 | |
aoqi@0 | 239 | // Does type profiling provide a useful type at this point? |
aoqi@0 | 240 | ciKlass* argument_profiled_type(int bci, int i); |
aoqi@0 | 241 | ciKlass* parameter_profiled_type(int i); |
aoqi@0 | 242 | ciKlass* return_profiled_type(int bci); |
aoqi@0 | 243 | |
aoqi@0 | 244 | ciField* get_field_at_bci( int bci, bool &will_link); |
aoqi@0 | 245 | ciMethod* get_method_at_bci(int bci, bool &will_link, ciSignature* *declared_signature); |
shshahma@8652 | 246 | |
shshahma@8652 | 247 | ciSignature* get_declared_signature_at_bci(int bci) { |
shshahma@8652 | 248 | bool ignored_will_link; |
shshahma@8652 | 249 | ciSignature* declared_signature; |
shshahma@8652 | 250 | get_method_at_bci(bci, ignored_will_link, &declared_signature); |
shshahma@8652 | 251 | assert(declared_signature != NULL, "cannot be null"); |
shshahma@8652 | 252 | return declared_signature; |
shshahma@8652 | 253 | } |
shshahma@8652 | 254 | |
dbuck@8651 | 255 | ciMethod* get_method_at_bci(int bci) { |
dbuck@8651 | 256 | bool ignored_will_link; |
dbuck@8651 | 257 | ciSignature* ignored_declared_signature; |
dbuck@8651 | 258 | return get_method_at_bci(bci, ignored_will_link, &ignored_declared_signature); |
dbuck@8651 | 259 | } |
shshahma@8652 | 260 | |
aoqi@0 | 261 | // Given a certain calling environment, find the monomorphic target |
aoqi@0 | 262 | // for the call. Return NULL if the call is not monomorphic in |
aoqi@0 | 263 | // its calling environment. |
aoqi@0 | 264 | ciMethod* find_monomorphic_target(ciInstanceKlass* caller, |
aoqi@0 | 265 | ciInstanceKlass* callee_holder, |
vlivanov@7792 | 266 | ciInstanceKlass* actual_receiver, |
vlivanov@7792 | 267 | bool check_access = true); |
aoqi@0 | 268 | |
aoqi@0 | 269 | // Given a known receiver klass, find the target for the call. |
aoqi@0 | 270 | // Return NULL if the call has no target or is abstract. |
vlivanov@7792 | 271 | ciMethod* resolve_invoke(ciKlass* caller, ciKlass* exact_receiver, bool check_access = true); |
aoqi@0 | 272 | |
aoqi@0 | 273 | // Find the proper vtable index to invoke this method. |
aoqi@0 | 274 | int resolve_vtable_index(ciKlass* caller, ciKlass* receiver); |
aoqi@0 | 275 | |
aoqi@0 | 276 | // Compilation directives |
aoqi@0 | 277 | bool should_exclude(); |
aoqi@0 | 278 | bool should_inline(); |
aoqi@0 | 279 | bool should_not_inline(); |
aoqi@0 | 280 | bool should_print_assembly(); |
aoqi@0 | 281 | bool break_at_execute(); |
aoqi@0 | 282 | bool has_option(const char *option); |
kvn@7144 | 283 | template<typename T> |
kvn@7144 | 284 | bool has_option_value(const char* option, T& value); |
aoqi@0 | 285 | bool can_be_compiled(); |
aoqi@0 | 286 | bool can_be_osr_compiled(int entry_bci); |
aoqi@0 | 287 | void set_not_compilable(const char* reason = NULL); |
aoqi@0 | 288 | bool has_compiled_code(); |
aoqi@0 | 289 | void log_nmethod_identity(xmlStream* log); |
aoqi@0 | 290 | bool is_not_reached(int bci); |
aoqi@0 | 291 | bool was_executed_more_than(int times); |
aoqi@0 | 292 | bool has_unloaded_classes_in_signature(); |
aoqi@0 | 293 | bool is_klass_loaded(int refinfo_index, bool must_be_resolved) const; |
aoqi@0 | 294 | bool check_call(int refinfo_index, bool is_static) const; |
aoqi@0 | 295 | bool ensure_method_data(); // make sure it exists in the VM also |
aoqi@0 | 296 | MethodCounters* ensure_method_counters(); |
aoqi@0 | 297 | int instructions_size(); |
aoqi@0 | 298 | int scale_count(int count, float prof_factor = 1.); // make MDO count commensurate with IIC |
aoqi@0 | 299 | |
aoqi@0 | 300 | // Stack walking support |
aoqi@0 | 301 | bool is_ignored_by_security_stack_walk() const; |
aoqi@0 | 302 | |
aoqi@0 | 303 | // JSR 292 support |
aoqi@0 | 304 | bool is_method_handle_intrinsic() const; |
aoqi@0 | 305 | bool is_compiled_lambda_form() const; |
aoqi@0 | 306 | bool has_member_arg() const; |
aoqi@0 | 307 | |
aoqi@0 | 308 | // What kind of ciObject is this? |
aoqi@0 | 309 | bool is_method() const { return true; } |
aoqi@0 | 310 | |
aoqi@0 | 311 | // Java access flags |
aoqi@0 | 312 | bool is_public () const { return flags().is_public(); } |
aoqi@0 | 313 | bool is_private () const { return flags().is_private(); } |
aoqi@0 | 314 | bool is_protected () const { return flags().is_protected(); } |
aoqi@0 | 315 | bool is_static () const { return flags().is_static(); } |
aoqi@0 | 316 | bool is_final () const { return flags().is_final(); } |
aoqi@0 | 317 | bool is_synchronized() const { return flags().is_synchronized(); } |
aoqi@0 | 318 | bool is_native () const { return flags().is_native(); } |
aoqi@0 | 319 | bool is_interface () const { return flags().is_interface(); } |
aoqi@0 | 320 | bool is_abstract () const { return flags().is_abstract(); } |
aoqi@0 | 321 | bool is_strict () const { return flags().is_strict(); } |
aoqi@0 | 322 | |
aoqi@0 | 323 | // Other flags |
aoqi@0 | 324 | bool is_empty_method() const; |
aoqi@0 | 325 | bool is_vanilla_constructor() const; |
aoqi@0 | 326 | bool is_final_method() const { return is_final() || holder()->is_final(); } |
aoqi@0 | 327 | bool has_loops () const; |
aoqi@0 | 328 | bool has_jsrs () const; |
aoqi@0 | 329 | bool is_accessor () const; |
aoqi@0 | 330 | bool is_initializer () const; |
aoqi@0 | 331 | bool can_be_statically_bound() const { return _can_be_statically_bound; } |
aoqi@0 | 332 | bool is_boxing_method() const; |
aoqi@0 | 333 | bool is_unboxing_method() const; |
coleenp@8739 | 334 | bool is_object_initializer() const; |
aoqi@0 | 335 | |
aoqi@0 | 336 | // Replay data methods |
aoqi@0 | 337 | void dump_name_as_ascii(outputStream* st); |
aoqi@0 | 338 | void dump_replay_data(outputStream* st); |
aoqi@0 | 339 | |
aoqi@0 | 340 | // Print the bytecodes of this method. |
aoqi@0 | 341 | void print_codes_on(outputStream* st); |
aoqi@0 | 342 | void print_codes() { |
aoqi@0 | 343 | print_codes_on(tty); |
aoqi@0 | 344 | } |
aoqi@0 | 345 | void print_codes_on(int from, int to, outputStream* st); |
aoqi@0 | 346 | |
aoqi@0 | 347 | // Print the name of this method in various incarnations. |
aoqi@0 | 348 | void print_name(outputStream* st = tty); |
aoqi@0 | 349 | void print_short_name(outputStream* st = tty); |
aoqi@0 | 350 | }; |
aoqi@0 | 351 | |
aoqi@0 | 352 | #endif // SHARE_VM_CI_CIMETHOD_HPP |