155 #if INCLUDE_JVMCI
156 static address deoptimize_for_missing_exception_handler(CompiledMethod* cm);
157 static oop get_cached_box(AutoBoxObjectValue* bv, frame* fr, RegisterMap* reg_map, TRAPS);
158 #endif
159
160 private:
161 // Does the actual work for deoptimizing a single frame
162 static void deoptimize_single_frame(JavaThread* thread, frame fr, DeoptReason reason);
163
164 // Helper function to revoke biases of all monitors in frame if UseBiasedLocking
165 // is enabled
166 static void revoke_biases_of_monitors(JavaThread* thread, frame fr, RegisterMap* map) {
167 revoke_using_safepoint(thread, fr, map);
168 }
169
170 #if COMPILER2_OR_JVMCI
171 JVMCI_ONLY(public:)
172
173 // Support for restoring non-escaping objects
174 static bool realloc_objects(JavaThread* thread, frame* fr, RegisterMap* reg_map, GrowableArray<ScopeValue*>* objects, TRAPS);
175 static void reassign_type_array_elements(frame* fr, RegisterMap* reg_map, ObjectValue* sv, typeArrayOop obj, BasicType type);
176 static void reassign_object_array_elements(frame* fr, RegisterMap* reg_map, ObjectValue* sv, objArrayOop obj);
177 static void reassign_fields(frame* fr, RegisterMap* reg_map, GrowableArray<ScopeValue*>* objects, bool realloc_failures, bool skip_internal);
178 static void relock_objects(GrowableArray<MonitorInfo*>* monitors, JavaThread* thread, bool realloc_failures);
179 static void pop_frames_failed_reallocs(JavaThread* thread, vframeArray* array);
180 NOT_PRODUCT(static void print_objects(GrowableArray<ScopeValue*>* objects, bool realloc_failures);)
181 #endif // COMPILER2_OR_JVMCI
182
183 public:
184 static vframeArray* create_vframeArray(JavaThread* thread, frame fr, RegisterMap *reg_map, GrowableArray<compiledVFrame*>* chunk, bool realloc_failures);
185
186 // Interface used for unpacking deoptimized frames
187
188 // UnrollBlock is returned by fetch_unroll_info() to the deoptimization handler (blob).
189 // This is only a CheapObj to ease debugging after a deopt failure
190 class UnrollBlock : public CHeapObj<mtCompiler> {
191 friend class VMStructs;
192 friend class JVMCIVMStructs;
193 private:
194 int _size_of_deoptimized_frame; // Size, in bytes, of current deoptimized frame
195 int _caller_adjustment; // Adjustment, in bytes, to caller's SP by initial interpreted frame
196 int _number_of_frames; // Number frames to unroll
197 int _total_frame_sizes; // Total of number*sizes frames
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155 #if INCLUDE_JVMCI
156 static address deoptimize_for_missing_exception_handler(CompiledMethod* cm);
157 static oop get_cached_box(AutoBoxObjectValue* bv, frame* fr, RegisterMap* reg_map, TRAPS);
158 #endif
159
160 private:
161 // Does the actual work for deoptimizing a single frame
162 static void deoptimize_single_frame(JavaThread* thread, frame fr, DeoptReason reason);
163
164 // Helper function to revoke biases of all monitors in frame if UseBiasedLocking
165 // is enabled
166 static void revoke_biases_of_monitors(JavaThread* thread, frame fr, RegisterMap* map) {
167 revoke_using_safepoint(thread, fr, map);
168 }
169
170 #if COMPILER2_OR_JVMCI
171 JVMCI_ONLY(public:)
172
173 // Support for restoring non-escaping objects
174 static bool realloc_objects(JavaThread* thread, frame* fr, RegisterMap* reg_map, GrowableArray<ScopeValue*>* objects, TRAPS);
175 static bool realloc_value_type_result(ValueKlass* vk, const RegisterMap& map, GrowableArray<Handle>& return_oops, TRAPS);
176 static void reassign_type_array_elements(frame* fr, RegisterMap* reg_map, ObjectValue* sv, typeArrayOop obj, BasicType type);
177 static void reassign_object_array_elements(frame* fr, RegisterMap* reg_map, ObjectValue* sv, objArrayOop obj);
178 static void reassign_value_array_elements(frame* fr, RegisterMap* reg_map, ObjectValue* sv, valueArrayOop obj, ValueArrayKlass* vak, TRAPS);
179 static void reassign_fields(frame* fr, RegisterMap* reg_map, GrowableArray<ScopeValue*>* objects, bool realloc_failures, bool skip_internal, TRAPS);
180 static void relock_objects(GrowableArray<MonitorInfo*>* monitors, JavaThread* thread, bool realloc_failures);
181 static void pop_frames_failed_reallocs(JavaThread* thread, vframeArray* array);
182 NOT_PRODUCT(static void print_objects(GrowableArray<ScopeValue*>* objects, bool realloc_failures);)
183 #endif // COMPILER2_OR_JVMCI
184
185 public:
186 static vframeArray* create_vframeArray(JavaThread* thread, frame fr, RegisterMap *reg_map, GrowableArray<compiledVFrame*>* chunk, bool realloc_failures);
187
188 // Interface used for unpacking deoptimized frames
189
190 // UnrollBlock is returned by fetch_unroll_info() to the deoptimization handler (blob).
191 // This is only a CheapObj to ease debugging after a deopt failure
192 class UnrollBlock : public CHeapObj<mtCompiler> {
193 friend class VMStructs;
194 friend class JVMCIVMStructs;
195 private:
196 int _size_of_deoptimized_frame; // Size, in bytes, of current deoptimized frame
197 int _caller_adjustment; // Adjustment, in bytes, to caller's SP by initial interpreted frame
198 int _number_of_frames; // Number frames to unroll
199 int _total_frame_sizes; // Total of number*sizes frames
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