Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef V8_IC_H_ |
| 6 | #define V8_IC_H_ |
| 7 | |
| 8 | #include "src/ic/ic-state.h" |
| 9 | #include "src/macro-assembler.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 10 | #include "src/messages.h" |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 11 | |
| 12 | namespace v8 { |
| 13 | namespace internal { |
| 14 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 15 | // |
| 16 | // IC is the base class for LoadIC, StoreIC, KeyedLoadIC, and KeyedStoreIC. |
| 17 | // |
| 18 | class IC { |
| 19 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 20 | // Alias the inline cache state type to make the IC code more readable. |
| 21 | typedef InlineCacheState State; |
| 22 | |
| 23 | // The IC code is either invoked with no extra frames on the stack |
| 24 | // or with a single extra frame for supporting calls. |
| 25 | enum FrameDepth { NO_EXTRA_FRAME = 0, EXTRA_CALL_FRAME = 1 }; |
| 26 | |
| 27 | // Construct the IC structure with the given number of extra |
| 28 | // JavaScript frames on the stack. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 29 | IC(FrameDepth depth, Isolate* isolate, FeedbackNexus* nexus = NULL); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 30 | virtual ~IC() {} |
| 31 | |
| 32 | State state() const { return state_; } |
| 33 | inline Address address() const; |
| 34 | |
| 35 | // Compute the current IC state based on the target stub, receiver and name. |
| 36 | void UpdateState(Handle<Object> receiver, Handle<Object> name); |
| 37 | |
| 38 | bool IsNameCompatibleWithPrototypeFailure(Handle<Object> name); |
| 39 | void MarkPrototypeFailure(Handle<Object> name) { |
| 40 | DCHECK(IsNameCompatibleWithPrototypeFailure(name)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 41 | old_state_ = state_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 42 | state_ = PROTOTYPE_FAILURE; |
| 43 | } |
| 44 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 45 | // Clear the inline cache to initial state. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 46 | static void Clear(Isolate* isolate, Address address, Address constant_pool); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 47 | |
| 48 | #ifdef DEBUG |
| 49 | bool IsLoadStub() const { |
| 50 | return target()->is_load_stub() || target()->is_keyed_load_stub(); |
| 51 | } |
| 52 | |
| 53 | bool IsStoreStub() const { |
| 54 | return target()->is_store_stub() || target()->is_keyed_store_stub(); |
| 55 | } |
| 56 | |
| 57 | bool IsCallStub() const { return target()->is_call_stub(); } |
| 58 | #endif |
| 59 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 60 | static inline Handle<Map> GetHandlerCacheHolder(Handle<Map> receiver_map, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 61 | bool receiver_is_holder, |
| 62 | Isolate* isolate, |
| 63 | CacheHolderFlag* flag); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 64 | static inline Handle<Map> GetICCacheHolder(Handle<Map> receiver_map, |
| 65 | Isolate* isolate, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 66 | CacheHolderFlag* flag); |
| 67 | |
| 68 | static bool IsCleared(Code* code) { |
| 69 | InlineCacheState state = code->ic_state(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 70 | return !FLAG_use_ic || state == UNINITIALIZED || state == PREMONOMORPHIC; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 71 | } |
| 72 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 73 | static bool IsCleared(FeedbackNexus* nexus) { |
| 74 | InlineCacheState state = nexus->StateFromFeedback(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 75 | return !FLAG_use_ic || state == UNINITIALIZED || state == PREMONOMORPHIC; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 76 | } |
| 77 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 78 | static bool ICUseVector(Code::Kind kind) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 79 | return kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC || |
| 80 | kind == Code::CALL_IC || kind == Code::STORE_IC || |
| 81 | kind == Code::KEYED_STORE_IC; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 82 | } |
| 83 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 84 | protected: |
| 85 | // Get the call-site target; used for determining the state. |
| 86 | Handle<Code> target() const { return target_; } |
| 87 | |
| 88 | Address fp() const { return fp_; } |
| 89 | Address pc() const { return *pc_address_; } |
| 90 | Isolate* isolate() const { return isolate_; } |
| 91 | |
| 92 | // Get the shared function info of the caller. |
| 93 | SharedFunctionInfo* GetSharedFunctionInfo() const; |
| 94 | // Get the code object of the caller. |
| 95 | Code* GetCode() const; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 96 | |
| 97 | bool AddressIsOptimizedCode() const; |
| 98 | inline bool AddressIsDeoptimizedCode() const; |
| 99 | inline static bool AddressIsDeoptimizedCode(Isolate* isolate, |
| 100 | Address address); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 101 | |
| 102 | // Set the call-site target. |
| 103 | inline void set_target(Code* code); |
| 104 | bool is_target_set() { return target_set_; } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 105 | bool is_vector_set() { return vector_set_; } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 106 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 107 | bool UseVector() const { |
| 108 | bool use = ICUseVector(kind()); |
| 109 | // If we are supposed to use the nexus, verify the nexus is non-null. |
| 110 | DCHECK(!use || nexus_ != NULL); |
| 111 | return use; |
| 112 | } |
| 113 | |
| 114 | // Configure for most states. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 115 | void ConfigureVectorState(IC::State new_state, Handle<Object> key); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 116 | // Configure the vector for MONOMORPHIC. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 117 | void ConfigureVectorState(Handle<Name> name, Handle<Map> map, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 118 | Handle<Code> handler); |
| 119 | // Configure the vector for POLYMORPHIC. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 120 | void ConfigureVectorState(Handle<Name> name, MapHandleList* maps, |
| 121 | CodeHandleList* handlers); |
| 122 | // Configure the vector for POLYMORPHIC with transitions (only for element |
| 123 | // keyed stores). |
| 124 | void ConfigureVectorState(MapHandleList* maps, |
| 125 | MapHandleList* transitioned_maps, |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 126 | CodeHandleList* handlers); |
| 127 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 128 | char TransitionMarkFromState(IC::State state); |
| 129 | void TraceIC(const char* type, Handle<Object> name); |
| 130 | void TraceIC(const char* type, Handle<Object> name, State old_state, |
| 131 | State new_state); |
| 132 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 133 | MaybeHandle<Object> TypeError(MessageTemplate::Template, |
| 134 | Handle<Object> object, Handle<Object> key); |
| 135 | MaybeHandle<Object> ReferenceError(Handle<Name> name); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 136 | |
| 137 | // Access the target code for the given IC address. |
| 138 | static inline Code* GetTargetAtAddress(Address address, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 139 | Address constant_pool); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 140 | static inline void SetTargetAtAddress(Address address, Code* target, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 141 | Address constant_pool); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 142 | static void OnTypeFeedbackChanged(Isolate* isolate, Address address, |
| 143 | State old_state, State new_state, |
| 144 | bool target_remains_ic_stub); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 145 | // As a vector-based IC, type feedback must be updated differently. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 146 | static void OnTypeFeedbackChanged(Isolate* isolate, Code* host); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 147 | static void PostPatching(Address address, Code* target, Code* old_target); |
| 148 | |
| 149 | // Compute the handler either by compiling or by retrieving a cached version. |
| 150 | Handle<Code> ComputeHandler(LookupIterator* lookup, |
| 151 | Handle<Object> value = Handle<Code>::null()); |
| 152 | virtual Handle<Code> CompileHandler(LookupIterator* lookup, |
| 153 | Handle<Object> value, |
| 154 | CacheHolderFlag cache_holder) { |
| 155 | UNREACHABLE(); |
| 156 | return Handle<Code>::null(); |
| 157 | } |
| 158 | |
| 159 | void UpdateMonomorphicIC(Handle<Code> handler, Handle<Name> name); |
| 160 | bool UpdatePolymorphicIC(Handle<Name> name, Handle<Code> code); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 161 | void UpdateMegamorphicCache(Map* map, Name* name, Code* code); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 162 | |
| 163 | void CopyICToMegamorphicCache(Handle<Name> name); |
| 164 | bool IsTransitionOfMonomorphicTarget(Map* source_map, Map* target_map); |
| 165 | void PatchCache(Handle<Name> name, Handle<Code> code); |
| 166 | Code::Kind kind() const { return kind_; } |
| 167 | Code::Kind handler_kind() const { |
| 168 | if (kind_ == Code::KEYED_LOAD_IC) return Code::LOAD_IC; |
| 169 | DCHECK(kind_ == Code::LOAD_IC || kind_ == Code::STORE_IC || |
| 170 | kind_ == Code::KEYED_STORE_IC); |
| 171 | return kind_; |
| 172 | } |
| 173 | virtual Handle<Code> megamorphic_stub() { |
| 174 | UNREACHABLE(); |
| 175 | return Handle<Code>::null(); |
| 176 | } |
| 177 | |
| 178 | bool TryRemoveInvalidPrototypeDependentStub(Handle<Object> receiver, |
| 179 | Handle<String> name); |
| 180 | |
| 181 | ExtraICState extra_ic_state() const { return extra_ic_state_; } |
| 182 | void set_extra_ic_state(ExtraICState state) { extra_ic_state_ = state; } |
| 183 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 184 | Handle<Map> receiver_map() { return receiver_map_; } |
| 185 | void update_receiver_map(Handle<Object> receiver) { |
| 186 | if (receiver->IsSmi()) { |
| 187 | receiver_map_ = isolate_->factory()->heap_number_map(); |
| 188 | } else { |
| 189 | receiver_map_ = handle(HeapObject::cast(*receiver)->map()); |
| 190 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 191 | } |
| 192 | |
| 193 | void TargetMaps(MapHandleList* list) { |
| 194 | FindTargetMaps(); |
| 195 | for (int i = 0; i < target_maps_.length(); i++) { |
| 196 | list->Add(target_maps_.at(i)); |
| 197 | } |
| 198 | } |
| 199 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 200 | Map* FirstTargetMap() { |
| 201 | FindTargetMaps(); |
| 202 | return target_maps_.length() > 0 ? *target_maps_.at(0) : NULL; |
| 203 | } |
| 204 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 205 | inline void UpdateTarget(); |
| 206 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 207 | Handle<TypeFeedbackVector> vector() const { return nexus()->vector_handle(); } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 208 | FeedbackVectorSlot slot() const { return nexus()->slot(); } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 209 | State saved_state() const { |
| 210 | return state() == PROTOTYPE_FAILURE ? old_state_ : state(); |
| 211 | } |
| 212 | |
| 213 | template <class NexusClass> |
| 214 | NexusClass* casted_nexus() { |
| 215 | return static_cast<NexusClass*>(nexus_); |
| 216 | } |
| 217 | FeedbackNexus* nexus() const { return nexus_; } |
| 218 | |
| 219 | inline Code* get_host(); |
| 220 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 221 | private: |
| 222 | inline Code* raw_target() const; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 223 | inline Address constant_pool() const; |
| 224 | inline Address raw_constant_pool() const; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 225 | |
| 226 | void FindTargetMaps() { |
| 227 | if (target_maps_set_) return; |
| 228 | target_maps_set_ = true; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 229 | if (UseVector()) { |
| 230 | nexus()->ExtractMaps(&target_maps_); |
| 231 | } else { |
| 232 | if (state_ == MONOMORPHIC) { |
| 233 | Map* map = target_->FindFirstMap(); |
| 234 | if (map != NULL) target_maps_.Add(handle(map)); |
| 235 | } else if (state_ != UNINITIALIZED && state_ != PREMONOMORPHIC) { |
| 236 | target_->FindAllMaps(&target_maps_); |
| 237 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 238 | } |
| 239 | } |
| 240 | |
| 241 | // Frame pointer for the frame that uses (calls) the IC. |
| 242 | Address fp_; |
| 243 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 244 | // All access to the program counter and constant pool of an IC structure is |
| 245 | // indirect to make the code GC safe. This feature is crucial since |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 246 | // GetProperty and SetProperty are called and they in turn might |
| 247 | // invoke the garbage collector. |
| 248 | Address* pc_address_; |
| 249 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 250 | // The constant pool of the code which originally called the IC (which might |
| 251 | // be for the breakpointed copy of the original code). |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 252 | Address* constant_pool_address_; |
| 253 | |
| 254 | Isolate* isolate_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 255 | |
| 256 | // The original code target that missed. |
| 257 | Handle<Code> target_; |
| 258 | bool target_set_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 259 | bool vector_set_; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 260 | State old_state_; // For saving if we marked as prototype failure. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 261 | State state_; |
| 262 | Code::Kind kind_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 263 | Handle<Map> receiver_map_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 264 | MaybeHandle<Code> maybe_handler_; |
| 265 | |
| 266 | ExtraICState extra_ic_state_; |
| 267 | MapHandleList target_maps_; |
| 268 | bool target_maps_set_; |
| 269 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 270 | FeedbackNexus* nexus_; |
| 271 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 272 | DISALLOW_IMPLICIT_CONSTRUCTORS(IC); |
| 273 | }; |
| 274 | |
| 275 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 276 | class CallIC : public IC { |
| 277 | public: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 278 | CallIC(Isolate* isolate, CallICNexus* nexus) |
| 279 | : IC(EXTRA_CALL_FRAME, isolate, nexus) { |
| 280 | DCHECK(nexus != NULL); |
| 281 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 282 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 283 | void HandleMiss(Handle<Object> function); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 284 | |
| 285 | // Code generator routines. |
| 286 | static Handle<Code> initialize_stub(Isolate* isolate, int argc, |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 287 | ConvertReceiverMode mode, |
| 288 | TailCallMode tail_call_mode); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 289 | static Handle<Code> initialize_stub_in_optimized_code( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 290 | Isolate* isolate, int argc, ConvertReceiverMode mode, |
| 291 | TailCallMode tail_call_mode); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 292 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 293 | static void Clear(Isolate* isolate, Code* host, CallICNexus* nexus); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 294 | }; |
| 295 | |
| 296 | |
| 297 | class LoadIC : public IC { |
| 298 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 299 | TypeofMode typeof_mode() const { |
| 300 | return LoadICState::GetTypeofMode(extra_ic_state()); |
| 301 | } |
| 302 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 303 | LoadIC(FrameDepth depth, Isolate* isolate, FeedbackNexus* nexus = NULL) |
| 304 | : IC(depth, isolate, nexus) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 305 | DCHECK(nexus != NULL); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 306 | DCHECK(IsLoadStub()); |
| 307 | } |
| 308 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 309 | bool ShouldThrowReferenceError(Handle<Object> receiver) { |
| 310 | return receiver->IsJSGlobalObject() && typeof_mode() == NOT_INSIDE_TYPEOF; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 311 | } |
| 312 | |
| 313 | // Code generator routines. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 314 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 315 | static void GenerateInitialize(MacroAssembler* masm) { GenerateMiss(masm); } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 316 | static void GenerateMiss(MacroAssembler* masm); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 317 | static void GenerateRuntimeGetProperty(MacroAssembler* masm); |
| 318 | static void GenerateNormal(MacroAssembler* masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 319 | |
| 320 | static Handle<Code> initialize_stub(Isolate* isolate, |
| 321 | ExtraICState extra_state); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 322 | static Handle<Code> initialize_stub_in_optimized_code( |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 323 | Isolate* isolate, ExtraICState extra_state, State initialization_state); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 324 | |
| 325 | MUST_USE_RESULT MaybeHandle<Object> Load(Handle<Object> object, |
| 326 | Handle<Name> name); |
| 327 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 328 | static void Clear(Isolate* isolate, Code* host, LoadICNexus* nexus); |
| 329 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 330 | protected: |
| 331 | inline void set_target(Code* code); |
| 332 | |
| 333 | Handle<Code> slow_stub() const { |
| 334 | if (kind() == Code::LOAD_IC) { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 335 | return isolate()->builtins()->LoadIC_Slow(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 336 | } else { |
| 337 | DCHECK_EQ(Code::KEYED_LOAD_IC, kind()); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 338 | return isolate()->builtins()->KeyedLoadIC_Slow(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 339 | } |
| 340 | } |
| 341 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 342 | Handle<Code> megamorphic_stub() override; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 343 | |
| 344 | // Update the inline cache and the global stub cache based on the |
| 345 | // lookup result. |
| 346 | void UpdateCaches(LookupIterator* lookup); |
| 347 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 348 | Handle<Code> CompileHandler(LookupIterator* lookup, Handle<Object> unused, |
| 349 | CacheHolderFlag cache_holder) override; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 350 | |
| 351 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 352 | Handle<Code> SimpleFieldLoad(FieldIndex index); |
| 353 | |
| 354 | static void Clear(Isolate* isolate, Address address, Code* target, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 355 | Address constant_pool); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 356 | |
| 357 | friend class IC; |
| 358 | }; |
| 359 | |
| 360 | |
| 361 | class KeyedLoadIC : public LoadIC { |
| 362 | public: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 363 | KeyedLoadIC(FrameDepth depth, Isolate* isolate, |
| 364 | KeyedLoadICNexus* nexus = NULL) |
| 365 | : LoadIC(depth, isolate, nexus) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 366 | DCHECK(nexus != NULL); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 367 | DCHECK(target()->is_keyed_load_stub()); |
| 368 | } |
| 369 | |
| 370 | MUST_USE_RESULT MaybeHandle<Object> Load(Handle<Object> object, |
| 371 | Handle<Object> key); |
| 372 | |
| 373 | // Code generator routines. |
| 374 | static void GenerateMiss(MacroAssembler* masm); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 375 | static void GenerateRuntimeGetProperty(MacroAssembler* masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 376 | static void GenerateInitialize(MacroAssembler* masm) { GenerateMiss(masm); } |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 377 | static void GenerateMegamorphic(MacroAssembler* masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 378 | |
| 379 | // Bit mask to be tested against bit field for the cases when |
| 380 | // generic stub should go into slow case. |
| 381 | // Access check is necessary explicitly since generic stub does not perform |
| 382 | // map checks. |
| 383 | static const int kSlowCaseBitFieldMask = |
| 384 | (1 << Map::kIsAccessCheckNeeded) | (1 << Map::kHasIndexedInterceptor); |
| 385 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 386 | static Handle<Code> initialize_stub(Isolate* isolate, |
| 387 | ExtraICState extra_state); |
| 388 | static Handle<Code> initialize_stub_in_optimized_code( |
| 389 | Isolate* isolate, State initialization_state, ExtraICState extra_state); |
| 390 | static Handle<Code> ChooseMegamorphicStub(Isolate* isolate, |
| 391 | ExtraICState extra_state); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 392 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 393 | static void Clear(Isolate* isolate, Code* host, KeyedLoadICNexus* nexus); |
| 394 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 395 | protected: |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 396 | // receiver is HeapObject because it could be a String or a JSObject |
| 397 | Handle<Code> LoadElementStub(Handle<HeapObject> receiver); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 398 | |
| 399 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 400 | static void Clear(Isolate* isolate, Address address, Code* target, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 401 | Address constant_pool); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 402 | |
| 403 | friend class IC; |
| 404 | }; |
| 405 | |
| 406 | |
| 407 | class StoreIC : public IC { |
| 408 | public: |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 409 | static ExtraICState ComputeExtraICState(LanguageMode flag) { |
| 410 | return StoreICState(flag).GetExtraICState(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 411 | } |
| 412 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 413 | StoreIC(FrameDepth depth, Isolate* isolate, FeedbackNexus* nexus = NULL) |
| 414 | : IC(depth, isolate, nexus) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 415 | DCHECK(IsStoreStub()); |
| 416 | } |
| 417 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 418 | LanguageMode language_mode() const { |
| 419 | return StoreICState::GetLanguageMode(extra_ic_state()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 420 | } |
| 421 | |
| 422 | // Code generators for stub routines. Only called once at startup. |
| 423 | static void GenerateSlow(MacroAssembler* masm); |
| 424 | static void GenerateInitialize(MacroAssembler* masm) { GenerateMiss(masm); } |
| 425 | static void GeneratePreMonomorphic(MacroAssembler* masm) { |
| 426 | GenerateMiss(masm); |
| 427 | } |
| 428 | static void GenerateMiss(MacroAssembler* masm); |
| 429 | static void GenerateMegamorphic(MacroAssembler* masm); |
| 430 | static void GenerateNormal(MacroAssembler* masm); |
| 431 | static void GenerateRuntimeSetProperty(MacroAssembler* masm, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 432 | LanguageMode language_mode); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 433 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 434 | static Handle<Code> initialize_stub(Isolate* isolate, |
| 435 | LanguageMode language_mode, |
| 436 | State initialization_state); |
| 437 | static Handle<Code> initialize_stub_in_optimized_code( |
| 438 | Isolate* isolate, LanguageMode language_mode, State initialization_state); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 439 | |
| 440 | MUST_USE_RESULT MaybeHandle<Object> Store( |
| 441 | Handle<Object> object, Handle<Name> name, Handle<Object> value, |
| 442 | JSReceiver::StoreFromKeyed store_mode = |
| 443 | JSReceiver::CERTAINLY_NOT_STORE_FROM_KEYED); |
| 444 | |
| 445 | bool LookupForWrite(LookupIterator* it, Handle<Object> value, |
| 446 | JSReceiver::StoreFromKeyed store_mode); |
| 447 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 448 | static void Clear(Isolate* isolate, Code* host, StoreICNexus* nexus); |
| 449 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 450 | protected: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 451 | // Stub accessors. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 452 | Handle<Code> megamorphic_stub() override; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 453 | Handle<Code> slow_stub() const; |
| 454 | |
| 455 | virtual Handle<Code> pre_monomorphic_stub() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 456 | return pre_monomorphic_stub(isolate(), language_mode()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 457 | } |
| 458 | |
| 459 | static Handle<Code> pre_monomorphic_stub(Isolate* isolate, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 460 | LanguageMode language_mode); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 461 | |
| 462 | // Update the inline cache and the global stub cache based on the |
| 463 | // lookup result. |
| 464 | void UpdateCaches(LookupIterator* lookup, Handle<Object> value, |
| 465 | JSReceiver::StoreFromKeyed store_mode); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 466 | Handle<Code> CompileHandler(LookupIterator* lookup, Handle<Object> value, |
| 467 | CacheHolderFlag cache_holder) override; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 468 | |
| 469 | private: |
| 470 | inline void set_target(Code* code); |
| 471 | |
| 472 | static void Clear(Isolate* isolate, Address address, Code* target, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 473 | Address constant_pool); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 474 | |
| 475 | friend class IC; |
| 476 | }; |
| 477 | |
| 478 | |
| 479 | enum KeyedStoreCheckMap { kDontCheckMap, kCheckMap }; |
| 480 | |
| 481 | |
| 482 | enum KeyedStoreIncrementLength { kDontIncrementLength, kIncrementLength }; |
| 483 | |
| 484 | |
| 485 | class KeyedStoreIC : public StoreIC { |
| 486 | public: |
| 487 | // ExtraICState bits (building on IC) |
| 488 | // ExtraICState bits |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 489 | // When more language modes are added, these BitFields need to move too. |
| 490 | STATIC_ASSERT(i::LANGUAGE_END == 3); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 491 | class ExtraICStateKeyedAccessStoreMode |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 492 | : public BitField<KeyedAccessStoreMode, 3, 3> {}; // NOLINT |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 493 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 494 | class IcCheckTypeField : public BitField<IcCheckType, 6, 1> {}; |
| 495 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 496 | static ExtraICState ComputeExtraICState(LanguageMode flag, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 497 | KeyedAccessStoreMode mode) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 498 | return StoreICState(flag).GetExtraICState() | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 499 | ExtraICStateKeyedAccessStoreMode::encode(mode) | |
| 500 | IcCheckTypeField::encode(ELEMENT); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 501 | } |
| 502 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 503 | KeyedAccessStoreMode GetKeyedAccessStoreMode() { |
| 504 | return casted_nexus<KeyedStoreICNexus>()->GetKeyedAccessStoreMode(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 505 | } |
| 506 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 507 | KeyedStoreIC(FrameDepth depth, Isolate* isolate, |
| 508 | KeyedStoreICNexus* nexus = NULL) |
| 509 | : StoreIC(depth, isolate, nexus) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 510 | DCHECK(target()->is_keyed_store_stub()); |
| 511 | } |
| 512 | |
| 513 | MUST_USE_RESULT MaybeHandle<Object> Store(Handle<Object> object, |
| 514 | Handle<Object> name, |
| 515 | Handle<Object> value); |
| 516 | |
| 517 | // Code generators for stub routines. Only called once at startup. |
| 518 | static void GenerateInitialize(MacroAssembler* masm) { GenerateMiss(masm); } |
| 519 | static void GeneratePreMonomorphic(MacroAssembler* masm) { |
| 520 | GenerateMiss(masm); |
| 521 | } |
| 522 | static void GenerateMiss(MacroAssembler* masm); |
| 523 | static void GenerateSlow(MacroAssembler* masm); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 524 | static void GenerateMegamorphic(MacroAssembler* masm, |
| 525 | LanguageMode language_mode); |
| 526 | |
| 527 | static Handle<Code> initialize_stub(Isolate* isolate, |
| 528 | LanguageMode language_mode, |
| 529 | State initialization_state); |
| 530 | |
| 531 | static Handle<Code> initialize_stub_in_optimized_code( |
| 532 | Isolate* isolate, LanguageMode language_mode, State initialization_state); |
| 533 | static Handle<Code> ChooseMegamorphicStub(Isolate* isolate, |
| 534 | ExtraICState extra_state); |
| 535 | |
| 536 | static void Clear(Isolate* isolate, Code* host, KeyedStoreICNexus* nexus); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 537 | |
| 538 | protected: |
| 539 | virtual Handle<Code> pre_monomorphic_stub() const { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 540 | return pre_monomorphic_stub(isolate(), language_mode()); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 541 | } |
| 542 | static Handle<Code> pre_monomorphic_stub(Isolate* isolate, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 543 | LanguageMode language_mode) { |
| 544 | if (is_strict(language_mode)) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 545 | return isolate->builtins()->KeyedStoreIC_PreMonomorphic_Strict(); |
| 546 | } else { |
| 547 | return isolate->builtins()->KeyedStoreIC_PreMonomorphic(); |
| 548 | } |
| 549 | } |
| 550 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 551 | Handle<Code> StoreElementStub(Handle<Map> receiver_map, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 552 | KeyedAccessStoreMode store_mode); |
| 553 | |
| 554 | private: |
| 555 | inline void set_target(Code* code); |
| 556 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 557 | static void Clear(Isolate* isolate, Address address, Code* target, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 558 | Address constant_pool); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 559 | |
| 560 | Handle<Map> ComputeTransitionedMap(Handle<Map> map, |
| 561 | KeyedAccessStoreMode store_mode); |
| 562 | |
| 563 | friend class IC; |
| 564 | }; |
| 565 | |
| 566 | |
| 567 | // Type Recording BinaryOpIC, that records the types of the inputs and outputs. |
| 568 | class BinaryOpIC : public IC { |
| 569 | public: |
| 570 | explicit BinaryOpIC(Isolate* isolate) : IC(EXTRA_CALL_FRAME, isolate) {} |
| 571 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 572 | MaybeHandle<Object> Transition(Handle<AllocationSite> allocation_site, |
| 573 | Handle<Object> left, |
| 574 | Handle<Object> right) WARN_UNUSED_RESULT; |
| 575 | }; |
| 576 | |
| 577 | |
| 578 | class CompareIC : public IC { |
| 579 | public: |
| 580 | CompareIC(Isolate* isolate, Token::Value op) |
| 581 | : IC(EXTRA_CALL_FRAME, isolate), op_(op) {} |
| 582 | |
| 583 | // Update the inline cache for the given operands. |
| 584 | Code* UpdateCaches(Handle<Object> x, Handle<Object> y); |
| 585 | |
| 586 | // Helper function for computing the condition for a compare operation. |
| 587 | static Condition ComputeCondition(Token::Value op); |
| 588 | |
| 589 | // Factory method for getting an uninitialized compare stub. |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 590 | static Handle<Code> GetUninitialized(Isolate* isolate, Token::Value op); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 591 | |
| 592 | private: |
| 593 | static bool HasInlinedSmiCode(Address address); |
| 594 | |
| 595 | bool strict() const { return op_ == Token::EQ_STRICT; } |
| 596 | Condition GetCondition() const { return ComputeCondition(op_); } |
| 597 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame^] | 598 | static Code* GetRawUninitialized(Isolate* isolate, Token::Value op); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 599 | |
| 600 | static void Clear(Isolate* isolate, Address address, Code* target, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 601 | Address constant_pool); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 602 | |
| 603 | Token::Value op_; |
| 604 | |
| 605 | friend class IC; |
| 606 | }; |
| 607 | |
| 608 | |
| 609 | class CompareNilIC : public IC { |
| 610 | public: |
| 611 | explicit CompareNilIC(Isolate* isolate) : IC(EXTRA_CALL_FRAME, isolate) {} |
| 612 | |
| 613 | Handle<Object> CompareNil(Handle<Object> object); |
| 614 | |
| 615 | static Handle<Code> GetUninitialized(); |
| 616 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 617 | static void Clear(Address address, Code* target, Address constant_pool); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 618 | }; |
| 619 | |
| 620 | |
| 621 | class ToBooleanIC : public IC { |
| 622 | public: |
| 623 | explicit ToBooleanIC(Isolate* isolate) : IC(EXTRA_CALL_FRAME, isolate) {} |
| 624 | |
| 625 | Handle<Object> ToBoolean(Handle<Object> object); |
| 626 | }; |
| 627 | |
| 628 | |
| 629 | // Helper for BinaryOpIC and CompareIC. |
| 630 | enum InlinedSmiCheck { ENABLE_INLINED_SMI_CHECK, DISABLE_INLINED_SMI_CHECK }; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 631 | void PatchInlinedSmiCode(Isolate* isolate, Address address, |
| 632 | InlinedSmiCheck check); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 633 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 634 | } // namespace internal |
| 635 | } // namespace v8 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 636 | |
| 637 | #endif // V8_IC_H_ |