348 // is needed for proper retries. See, for example,
349 // InterpreterRuntime::exception_handler_for_exception.
350 static int fast_exception_handler_bci_for(methodHandle mh, KlassHandle ex_klass, int throw_bci, TRAPS);
351
352 // method data access
353 MethodData* method_data() const {
354 return _method_data;
355 }
356
357 void set_method_data(MethodData* data) {
358 // The store into method must be released. On platforms without
359 // total store order (TSO) the reference may become visible before
360 // the initialization of data otherwise.
361 OrderAccess::release_store_ptr((volatile void *)&_method_data, data);
362 }
363
364 MethodCounters* method_counters() const {
365 return _method_counters;
366 }
367
368 void set_method_counters(MethodCounters* counters) {
369 // The store into method must be released. On platforms without
370 // total store order (TSO) the reference may become visible before
371 // the initialization of data otherwise.
372 OrderAccess::release_store_ptr((volatile void *)&_method_counters, counters);
373 }
374
375 #ifdef TIERED
376 // We are reusing interpreter_invocation_count as a holder for the previous event count!
377 // We can do that since interpreter_invocation_count is not used in tiered.
378 int prev_event_count() const {
379 if (method_counters() == NULL) {
380 return 0;
381 } else {
382 return method_counters()->interpreter_invocation_count();
383 }
384 }
385 void set_prev_event_count(int count) {
386 MethodCounters* mcs = method_counters();
387 if (mcs != NULL) {
388 mcs->set_interpreter_invocation_count(count);
389 }
390 }
391 jlong prev_time() const {
392 MethodCounters* mcs = method_counters();
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348 // is needed for proper retries. See, for example,
349 // InterpreterRuntime::exception_handler_for_exception.
350 static int fast_exception_handler_bci_for(methodHandle mh, KlassHandle ex_klass, int throw_bci, TRAPS);
351
352 // method data access
353 MethodData* method_data() const {
354 return _method_data;
355 }
356
357 void set_method_data(MethodData* data) {
358 // The store into method must be released. On platforms without
359 // total store order (TSO) the reference may become visible before
360 // the initialization of data otherwise.
361 OrderAccess::release_store_ptr((volatile void *)&_method_data, data);
362 }
363
364 MethodCounters* method_counters() const {
365 return _method_counters;
366 }
367
368 void clear_method_counters() {
369 _method_counters = NULL;
370 }
371
372 bool init_method_counters(MethodCounters* counters) {
373 // Try to install a pointer to MethodCounters, return true on success.
374 return Atomic::cmpxchg_ptr(counters, (volatile void*)&_method_counters, NULL) == NULL;
375 }
376
377 #ifdef TIERED
378 // We are reusing interpreter_invocation_count as a holder for the previous event count!
379 // We can do that since interpreter_invocation_count is not used in tiered.
380 int prev_event_count() const {
381 if (method_counters() == NULL) {
382 return 0;
383 } else {
384 return method_counters()->interpreter_invocation_count();
385 }
386 }
387 void set_prev_event_count(int count) {
388 MethodCounters* mcs = method_counters();
389 if (mcs != NULL) {
390 mcs->set_interpreter_invocation_count(count);
391 }
392 }
393 jlong prev_time() const {
394 MethodCounters* mcs = method_counters();
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