189 bool wrote_volatile () const { return _wrote_volatile; }
190 };
191
192
193 //
194 // IRScopeDebugInfo records the debug information for a particular IRScope
195 // in a particular CodeEmitInfo. This allows the information to be computed
196 // once early enough for the OopMap to be available to the LIR and also to be
197 // reemited for different pcs using the same CodeEmitInfo without recomputing
198 // everything.
199 //
200
201 class IRScopeDebugInfo: public CompilationResourceObj {
202 private:
203 IRScope* _scope;
204 int _bci;
205 GrowableArray<ScopeValue*>* _locals;
206 GrowableArray<ScopeValue*>* _expressions;
207 GrowableArray<MonitorValue*>* _monitors;
208 IRScopeDebugInfo* _caller;
209
210 public:
211 IRScopeDebugInfo(IRScope* scope,
212 int bci,
213 GrowableArray<ScopeValue*>* locals,
214 GrowableArray<ScopeValue*>* expressions,
215 GrowableArray<MonitorValue*>* monitors,
216 IRScopeDebugInfo* caller):
217 _scope(scope)
218 , _bci(bci)
219 , _locals(locals)
220 , _expressions(expressions)
221 , _monitors(monitors)
222 , _caller(caller) {}
223
224
225 IRScope* scope() { return _scope; }
226 int bci() { return _bci; }
227 GrowableArray<ScopeValue*>* locals() { return _locals; }
228 GrowableArray<ScopeValue*>* expressions() { return _expressions; }
229 GrowableArray<MonitorValue*>* monitors() { return _monitors; }
230 IRScopeDebugInfo* caller() { return _caller; }
231
232 //Whether we should reexecute this bytecode for deopt
233 bool should_reexecute();
234
235 void record_debug_info(DebugInformationRecorder* recorder, int pc_offset, bool topmost, bool is_method_handle_invoke = false) {
236 if (caller() != NULL) {
237 // Order is significant: Must record caller first.
238 caller()->record_debug_info(recorder, pc_offset, false/*topmost*/);
239 }
240 DebugToken* locvals = recorder->create_scope_values(locals());
241 DebugToken* expvals = recorder->create_scope_values(expressions());
242 DebugToken* monvals = recorder->create_monitor_values(monitors());
243 // reexecute allowed only for the topmost frame
244 bool reexecute = topmost ? should_reexecute() : false;
245 bool return_oop = false; // This flag will be ignored since it used only for C2 with escape analysis.
246 bool rethrow_exception = false;
247 bool is_opt_native = false;
248 bool has_ea_local_in_scope = false;
249 bool arg_escape = false;
250 recorder->describe_scope(pc_offset, methodHandle(), scope()->method(), bci(),
251 reexecute, rethrow_exception, is_method_handle_invoke, is_opt_native, return_oop,
252 has_ea_local_in_scope, arg_escape, locvals, expvals, monvals);
253 }
254 };
255
256
257 class CodeEmitInfo: public CompilationResourceObj {
258 friend class LinearScan;
259 private:
260 IRScopeDebugInfo* _scope_debug_info;
261 IRScope* _scope;
262 XHandlers* _exception_handlers;
263 OopMap* _oop_map;
264 ValueStack* _stack; // used by deoptimization (contains also monitors
265 bool _is_method_handle_invoke; // true if the associated call site is a MethodHandle call site.
266 bool _deoptimize_on_exception;
267
268 FrameMap* frame_map() const { return scope()->compilation()->frame_map(); }
269 Compilation* compilation() const { return scope()->compilation(); }
270
271 public:
272
273 // use scope from ValueStack
274 CodeEmitInfo(ValueStack* stack, XHandlers* exception_handlers, bool deoptimize_on_exception = false);
275
276 // make a copy
277 CodeEmitInfo(CodeEmitInfo* info, ValueStack* stack = NULL);
278
279 // accessors
280 OopMap* oop_map() { return _oop_map; }
281 ciMethod* method() const { return _scope->method(); }
282 IRScope* scope() const { return _scope; }
283 XHandlers* exception_handlers() const { return _exception_handlers; }
284 ValueStack* stack() const { return _stack; }
285 bool deoptimize_on_exception() const { return _deoptimize_on_exception; }
286
287 void add_register_oop(LIR_Opr opr);
288 void record_debug_info(DebugInformationRecorder* recorder, int pc_offset);
289
290 bool is_method_handle_invoke() const { return _is_method_handle_invoke; }
291 void set_is_method_handle_invoke(bool x) { _is_method_handle_invoke = x; }
292
293 int interpreter_frame_size() const;
294 };
295
296
297 class IR: public CompilationResourceObj {
298 private:
299 Compilation* _compilation; // the current compilation
300 IRScope* _top_scope; // the root of the scope hierarchy
301 int _num_loops; // Total number of loops
302 BlockList* _code; // the blocks in code generation order w/ use counts
303
304 public:
305 // creation
306 IR(Compilation* compilation, ciMethod* method, int osr_bci);
307
308 // accessors
|
189 bool wrote_volatile () const { return _wrote_volatile; }
190 };
191
192
193 //
194 // IRScopeDebugInfo records the debug information for a particular IRScope
195 // in a particular CodeEmitInfo. This allows the information to be computed
196 // once early enough for the OopMap to be available to the LIR and also to be
197 // reemited for different pcs using the same CodeEmitInfo without recomputing
198 // everything.
199 //
200
201 class IRScopeDebugInfo: public CompilationResourceObj {
202 private:
203 IRScope* _scope;
204 int _bci;
205 GrowableArray<ScopeValue*>* _locals;
206 GrowableArray<ScopeValue*>* _expressions;
207 GrowableArray<MonitorValue*>* _monitors;
208 IRScopeDebugInfo* _caller;
209 bool _should_reexecute;
210
211 public:
212 IRScopeDebugInfo(IRScope* scope,
213 int bci,
214 GrowableArray<ScopeValue*>* locals,
215 GrowableArray<ScopeValue*>* expressions,
216 GrowableArray<MonitorValue*>* monitors,
217 IRScopeDebugInfo* caller,
218 bool should_reexecute):
219 _scope(scope)
220 , _bci(bci)
221 , _locals(locals)
222 , _expressions(expressions)
223 , _monitors(monitors)
224 , _caller(caller)
225 , _should_reexecute(should_reexecute) {}
226
227
228 IRScope* scope() { return _scope; }
229 int bci() { return _bci; }
230 GrowableArray<ScopeValue*>* locals() { return _locals; }
231 GrowableArray<ScopeValue*>* expressions() { return _expressions; }
232 GrowableArray<MonitorValue*>* monitors() { return _monitors; }
233 IRScopeDebugInfo* caller() { return _caller; }
234
235 //Whether we should reexecute this bytecode for deopt
236 bool should_reexecute();
237
238 void record_debug_info(DebugInformationRecorder* recorder, int pc_offset, bool topmost, bool is_method_handle_invoke = false, bool maybe_return_as_fields = false) {
239 if (caller() != NULL) {
240 // Order is significant: Must record caller first.
241 caller()->record_debug_info(recorder, pc_offset, false/*topmost*/);
242 }
243 DebugToken* locvals = recorder->create_scope_values(locals());
244 DebugToken* expvals = recorder->create_scope_values(expressions());
245 DebugToken* monvals = recorder->create_monitor_values(monitors());
246 // reexecute allowed only for the topmost frame
247 bool reexecute = topmost ? should_reexecute() : false;
248 bool return_oop = false;
249 bool return_scalarized = false;
250 if (maybe_return_as_fields) {
251 return_oop = true;
252 return_scalarized = true;
253 }
254 bool rethrow_exception = false;
255 bool is_opt_native = false;
256 bool has_ea_local_in_scope = false;
257 bool arg_escape = false;
258 recorder->describe_scope(pc_offset, methodHandle(), scope()->method(), bci(),
259 reexecute, rethrow_exception, is_method_handle_invoke, is_opt_native, return_oop, return_scalarized,
260 has_ea_local_in_scope, arg_escape, locvals, expvals, monvals);
261 }
262 };
263
264
265 class CodeEmitInfo: public CompilationResourceObj {
266 friend class LinearScan;
267 private:
268 IRScopeDebugInfo* _scope_debug_info;
269 IRScope* _scope;
270 XHandlers* _exception_handlers;
271 OopMap* _oop_map;
272 ValueStack* _stack; // used by deoptimization (contains also monitors
273 bool _is_method_handle_invoke; // true if the associated call site is a MethodHandle call site.
274 bool _deoptimize_on_exception;
275
276 FrameMap* frame_map() const { return scope()->compilation()->frame_map(); }
277 Compilation* compilation() const { return scope()->compilation(); }
278
279 public:
280
281 // use scope from ValueStack
282 CodeEmitInfo(ValueStack* stack, XHandlers* exception_handlers, bool deoptimize_on_exception = false);
283
284 // make a copy
285 CodeEmitInfo(CodeEmitInfo* info, ValueStack* stack = NULL);
286
287 // accessors
288 OopMap* oop_map() { return _oop_map; }
289 ciMethod* method() const { return _scope->method(); }
290 IRScope* scope() const { return _scope; }
291 XHandlers* exception_handlers() const { return _exception_handlers; }
292 ValueStack* stack() const { return _stack; }
293 bool deoptimize_on_exception() const { return _deoptimize_on_exception; }
294
295 void add_register_oop(LIR_Opr opr);
296 void record_debug_info(DebugInformationRecorder* recorder, int pc_offset, bool maybe_return_as_fields = false);
297
298 bool is_method_handle_invoke() const { return _is_method_handle_invoke; }
299 void set_is_method_handle_invoke(bool x) { _is_method_handle_invoke = x; }
300
301 int interpreter_frame_size() const;
302 };
303
304
305 class IR: public CompilationResourceObj {
306 private:
307 Compilation* _compilation; // the current compilation
308 IRScope* _top_scope; // the root of the scope hierarchy
309 int _num_loops; // Total number of loops
310 BlockList* _code; // the blocks in code generation order w/ use counts
311
312 public:
313 // creation
314 IR(Compilation* compilation, ciMethod* method, int osr_bci);
315
316 // accessors
|