Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4 | |
| 5 | #ifndef V8_CODE_STUBS_H_ |
| 6 | #define V8_CODE_STUBS_H_ |
| 7 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 8 | #include "src/allocation.h" |
| 9 | #include "src/assembler.h" |
| 10 | #include "src/codegen.h" |
| 11 | #include "src/globals.h" |
| 12 | #include "src/ic/ic-state.h" |
| 13 | #include "src/interface-descriptors.h" |
| 14 | #include "src/macro-assembler.h" |
| 15 | #include "src/ostreams.h" |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 16 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 17 | namespace v8 { |
| 18 | namespace internal { |
| 19 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 20 | // List of code stubs used on all platforms. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 21 | #define CODE_STUB_LIST_ALL_PLATFORMS(V) \ |
| 22 | /* PlatformCodeStubs */ \ |
| 23 | V(ArgumentsAccess) \ |
| 24 | V(ArrayConstructor) \ |
| 25 | V(BinaryOpICWithAllocationSite) \ |
| 26 | V(CallApiFunction) \ |
| 27 | V(CallApiGetter) \ |
| 28 | V(CallConstruct) \ |
| 29 | V(CallFunction) \ |
| 30 | V(CallIC) \ |
| 31 | V(CallIC_Array) \ |
| 32 | V(CEntry) \ |
| 33 | V(CompareIC) \ |
| 34 | V(DoubleToI) \ |
| 35 | V(FunctionPrototype) \ |
| 36 | V(Instanceof) \ |
| 37 | V(InternalArrayConstructor) \ |
| 38 | V(JSEntry) \ |
| 39 | V(KeyedLoadICTrampoline) \ |
| 40 | V(LoadICTrampoline) \ |
| 41 | V(LoadIndexedInterceptor) \ |
| 42 | V(MathPow) \ |
| 43 | V(ProfileEntryHook) \ |
| 44 | V(RecordWrite) \ |
| 45 | V(RegExpExec) \ |
| 46 | V(StoreArrayLiteralElement) \ |
| 47 | V(StoreBufferOverflow) \ |
| 48 | V(StoreElement) \ |
| 49 | V(StringCompare) \ |
| 50 | V(StubFailureTrampoline) \ |
| 51 | V(SubString) \ |
| 52 | /* HydrogenCodeStubs */ \ |
| 53 | V(ArrayNArgumentsConstructor) \ |
| 54 | V(ArrayNoArgumentConstructor) \ |
| 55 | V(ArraySingleArgumentConstructor) \ |
| 56 | V(BinaryOpIC) \ |
| 57 | V(BinaryOpWithAllocationSite) \ |
| 58 | V(CompareNilIC) \ |
| 59 | V(CreateAllocationSite) \ |
| 60 | V(ElementsTransitionAndStore) \ |
| 61 | V(FastCloneShallowArray) \ |
| 62 | V(FastCloneShallowObject) \ |
| 63 | V(FastNewClosure) \ |
| 64 | V(FastNewContext) \ |
| 65 | V(InternalArrayNArgumentsConstructor) \ |
| 66 | V(InternalArrayNoArgumentConstructor) \ |
| 67 | V(InternalArraySingleArgumentConstructor) \ |
| 68 | V(KeyedLoadGeneric) \ |
| 69 | V(LoadDictionaryElement) \ |
| 70 | V(LoadFastElement) \ |
| 71 | V(MegamorphicLoad) \ |
| 72 | V(NameDictionaryLookup) \ |
| 73 | V(NumberToString) \ |
| 74 | V(RegExpConstructResult) \ |
| 75 | V(StoreFastElement) \ |
| 76 | V(StringAdd) \ |
| 77 | V(ToBoolean) \ |
| 78 | V(ToNumber) \ |
| 79 | V(TransitionElementsKind) \ |
| 80 | V(VectorKeyedLoad) \ |
| 81 | V(VectorLoad) \ |
| 82 | /* IC Handler stubs */ \ |
| 83 | V(LoadConstant) \ |
| 84 | V(LoadField) \ |
| 85 | V(KeyedLoadSloppyArguments) \ |
| 86 | V(StoreField) \ |
| 87 | V(StoreGlobal) \ |
| 88 | V(StringLength) |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 89 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 90 | // List of code stubs only used on ARM 32 bits platforms. |
| 91 | #if V8_TARGET_ARCH_ARM |
| 92 | #define CODE_STUB_LIST_ARM(V) \ |
| 93 | V(DirectCEntry) \ |
| 94 | V(WriteInt32ToHeapNumber) |
| 95 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 96 | #else |
| 97 | #define CODE_STUB_LIST_ARM(V) |
| 98 | #endif |
| 99 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 100 | // List of code stubs only used on ARM 64 bits platforms. |
| 101 | #if V8_TARGET_ARCH_ARM64 |
| 102 | #define CODE_STUB_LIST_ARM64(V) \ |
| 103 | V(DirectCEntry) \ |
| 104 | V(RestoreRegistersState) \ |
| 105 | V(StoreRegistersState) |
| 106 | |
| 107 | #else |
| 108 | #define CODE_STUB_LIST_ARM64(V) |
| 109 | #endif |
| 110 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 111 | // List of code stubs only used on MIPS platforms. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 112 | #if V8_TARGET_ARCH_MIPS |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 113 | #define CODE_STUB_LIST_MIPS(V) \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 114 | V(DirectCEntry) \ |
| 115 | V(RestoreRegistersState) \ |
| 116 | V(StoreRegistersState) \ |
| 117 | V(WriteInt32ToHeapNumber) |
| 118 | #elif V8_TARGET_ARCH_MIPS64 |
| 119 | #define CODE_STUB_LIST_MIPS(V) \ |
| 120 | V(DirectCEntry) \ |
| 121 | V(RestoreRegistersState) \ |
| 122 | V(StoreRegistersState) \ |
| 123 | V(WriteInt32ToHeapNumber) |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 124 | #else |
| 125 | #define CODE_STUB_LIST_MIPS(V) |
| 126 | #endif |
| 127 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 128 | // Combined list of code stubs. |
| 129 | #define CODE_STUB_LIST(V) \ |
| 130 | CODE_STUB_LIST_ALL_PLATFORMS(V) \ |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 131 | CODE_STUB_LIST_ARM(V) \ |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 132 | CODE_STUB_LIST_ARM64(V) \ |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 133 | CODE_STUB_LIST_MIPS(V) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 134 | |
| 135 | // Stub is base classes of all stubs. |
| 136 | class CodeStub BASE_EMBEDDED { |
| 137 | public: |
| 138 | enum Major { |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 139 | #define DEF_ENUM(name) name, |
| 140 | CODE_STUB_LIST(DEF_ENUM) |
| 141 | #undef DEF_ENUM |
| 142 | NoCache, // marker for stubs that do custom caching |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 143 | NUMBER_OF_IDS |
| 144 | }; |
| 145 | |
| 146 | // Retrieve the code for the stub. Generate the code if needed. |
| 147 | Handle<Code> GetCode(); |
| 148 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 149 | // Retrieve the code for the stub, make and return a copy of the code. |
| 150 | Handle<Code> GetCodeCopy(const Code::FindAndReplacePattern& pattern); |
| 151 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 152 | static Major MajorKeyFromKey(uint32_t key) { |
| 153 | return static_cast<Major>(MajorKeyBits::decode(key)); |
Iain Merrick | 9ac36c9 | 2010-09-13 15:29:50 +0100 | [diff] [blame] | 154 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 155 | static uint32_t MinorKeyFromKey(uint32_t key) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 156 | return MinorKeyBits::decode(key); |
Iain Merrick | 9ac36c9 | 2010-09-13 15:29:50 +0100 | [diff] [blame] | 157 | } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 158 | |
| 159 | // Gets the major key from a code object that is a code stub or binary op IC. |
| 160 | static Major GetMajorKey(Code* code_stub) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 161 | return MajorKeyFromKey(code_stub->stub_key()); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 162 | } |
| 163 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 164 | static uint32_t NoCacheKey() { return MajorKeyBits::encode(NoCache); } |
| 165 | |
Andrei Popescu | 3100271 | 2010-02-23 13:46:05 +0000 | [diff] [blame] | 166 | static const char* MajorName(Major major_key, bool allow_unknown_keys); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 167 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 168 | explicit CodeStub(Isolate* isolate) : minor_key_(0), isolate_(isolate) {} |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 169 | virtual ~CodeStub() {} |
| 170 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 171 | static void GenerateStubsAheadOfTime(Isolate* isolate); |
| 172 | static void GenerateFPStubs(Isolate* isolate); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 173 | |
| 174 | // Some stubs put untagged junk on the stack that cannot be scanned by the |
| 175 | // GC. This means that we must be statically sure that no GC can occur while |
| 176 | // they are running. If that is the case they should override this to return |
| 177 | // true, which will cause an assertion if we try to call something that can |
| 178 | // GC or if we try to put a stack frame on top of the junk, which would not |
| 179 | // result in a traversable stack. |
| 180 | virtual bool SometimesSetsUpAFrame() { return true; } |
| 181 | |
| 182 | // Lookup the code in the (possibly custom) cache. |
| 183 | bool FindCodeInCache(Code** code_out); |
| 184 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 185 | virtual CallInterfaceDescriptor GetCallInterfaceDescriptor() = 0; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 186 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 187 | virtual void InitializeDescriptor(CodeStubDescriptor* descriptor) {} |
| 188 | |
| 189 | static void InitializeDescriptor(Isolate* isolate, uint32_t key, |
| 190 | CodeStubDescriptor* desc); |
| 191 | |
| 192 | static MaybeHandle<Code> GetCode(Isolate* isolate, uint32_t key); |
| 193 | |
| 194 | // Returns information for computing the number key. |
| 195 | virtual Major MajorKey() const = 0; |
| 196 | uint32_t MinorKey() const { return minor_key_; } |
| 197 | |
| 198 | virtual InlineCacheState GetICState() const { return UNINITIALIZED; } |
| 199 | virtual ExtraICState GetExtraICState() const { return kNoExtraICState; } |
| 200 | virtual Code::StubType GetStubType() { |
| 201 | return Code::NORMAL; |
| 202 | } |
| 203 | |
| 204 | friend OStream& operator<<(OStream& os, const CodeStub& s) { |
| 205 | s.PrintName(os); |
| 206 | return os; |
| 207 | } |
| 208 | |
| 209 | Isolate* isolate() const { return isolate_; } |
| 210 | |
| 211 | protected: |
| 212 | CodeStub(uint32_t key, Isolate* isolate) |
| 213 | : minor_key_(MinorKeyFromKey(key)), isolate_(isolate) {} |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 214 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 215 | // Generates the assembler code for the stub. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 216 | virtual Handle<Code> GenerateCode() = 0; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 217 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 218 | // Returns whether the code generated for this stub needs to be allocated as |
| 219 | // a fixed (non-moveable) code object. |
| 220 | virtual bool NeedsImmovableCode() { return false; } |
| 221 | |
| 222 | virtual void PrintName(OStream& os) const; // NOLINT |
| 223 | virtual void PrintBaseName(OStream& os) const; // NOLINT |
| 224 | virtual void PrintState(OStream& os) const { ; } // NOLINT |
| 225 | |
| 226 | // Computes the key based on major and minor. |
| 227 | uint32_t GetKey() { |
| 228 | DCHECK(static_cast<int>(MajorKey()) < NUMBER_OF_IDS); |
| 229 | return MinorKeyBits::encode(MinorKey()) | MajorKeyBits::encode(MajorKey()); |
| 230 | } |
| 231 | |
| 232 | uint32_t minor_key_; |
| 233 | |
| 234 | private: |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 235 | // Perform bookkeeping required after code generation when stub code is |
| 236 | // initially generated. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 237 | void RecordCodeGeneration(Handle<Code> code); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 238 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 239 | // Finish the code object after it has been generated. |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 240 | virtual void FinishCode(Handle<Code> code) { } |
| 241 | |
| 242 | // Activate newly generated stub. Is called after |
| 243 | // registering stub in the stub cache. |
| 244 | virtual void Activate(Code* code) { } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 245 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 246 | // BinaryOpStub needs to override this. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 247 | virtual Code::Kind GetCodeKind() const; |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 248 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 249 | // Add the code to a specialized cache, specific to an individual |
| 250 | // stub type. Please note, this method must add the code object to a |
| 251 | // roots object, otherwise we will remove the code during GC. |
| 252 | virtual void AddToSpecialCache(Handle<Code> new_object) { } |
| 253 | |
| 254 | // Find code in a specialized cache, work is delegated to the specific stub. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 255 | virtual bool FindCodeInSpecialCache(Code** code_out) { |
| 256 | return false; |
| 257 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 258 | |
| 259 | // If a stub uses a special cache override this. |
| 260 | virtual bool UseSpecialCache() { return false; } |
| 261 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 262 | // We use this dispatch to statically instantiate the correct code stub for |
| 263 | // the given stub key and call the passed function with that code stub. |
| 264 | typedef void (*DispatchedCall)(CodeStub* stub, void** value_out); |
| 265 | static void Dispatch(Isolate* isolate, uint32_t key, void** value_out, |
| 266 | DispatchedCall call); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 267 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 268 | static void GetCodeDispatchCall(CodeStub* stub, void** value_out); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 269 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 270 | STATIC_ASSERT(NUMBER_OF_IDS < (1 << kStubMajorKeyBits)); |
| 271 | class MajorKeyBits: public BitField<uint32_t, 0, kStubMajorKeyBits> {}; |
| 272 | class MinorKeyBits: public BitField<uint32_t, |
| 273 | kStubMajorKeyBits, kStubMinorKeyBits> {}; // NOLINT |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 274 | |
| 275 | friend class BreakPointIterator; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 276 | |
| 277 | Isolate* isolate_; |
| 278 | }; |
| 279 | |
| 280 | |
| 281 | #define DEFINE_CODE_STUB_BASE(NAME, SUPER) \ |
| 282 | public: \ |
| 283 | NAME(uint32_t key, Isolate* isolate) : SUPER(key, isolate) {} \ |
| 284 | \ |
| 285 | private: \ |
| 286 | DISALLOW_COPY_AND_ASSIGN(NAME) |
| 287 | |
| 288 | |
| 289 | #define DEFINE_CODE_STUB(NAME, SUPER) \ |
| 290 | protected: \ |
| 291 | virtual inline Major MajorKey() const OVERRIDE { \ |
| 292 | return NAME; \ |
| 293 | }; \ |
| 294 | DEFINE_CODE_STUB_BASE(NAME##Stub, SUPER) |
| 295 | |
| 296 | |
| 297 | #define DEFINE_PLATFORM_CODE_STUB(NAME, SUPER) \ |
| 298 | private: \ |
| 299 | virtual void Generate(MacroAssembler* masm) OVERRIDE; \ |
| 300 | DEFINE_CODE_STUB(NAME, SUPER) |
| 301 | |
| 302 | |
| 303 | #define DEFINE_HYDROGEN_CODE_STUB(NAME, SUPER) \ |
| 304 | public: \ |
| 305 | virtual void InitializeDescriptor(CodeStubDescriptor* descriptor) OVERRIDE; \ |
| 306 | virtual Handle<Code> GenerateCode() OVERRIDE; \ |
| 307 | DEFINE_CODE_STUB(NAME, SUPER) |
| 308 | |
| 309 | #define DEFINE_HANDLER_CODE_STUB(NAME, SUPER) \ |
| 310 | public: \ |
| 311 | virtual Handle<Code> GenerateCode() OVERRIDE; \ |
| 312 | DEFINE_CODE_STUB(NAME, SUPER) |
| 313 | |
| 314 | #define DEFINE_CALL_INTERFACE_DESCRIPTOR(NAME) \ |
| 315 | public: \ |
| 316 | virtual CallInterfaceDescriptor GetCallInterfaceDescriptor() OVERRIDE { \ |
| 317 | return NAME##Descriptor(isolate()); \ |
| 318 | } |
| 319 | |
| 320 | // There are some code stubs we just can't describe right now with a |
| 321 | // CallInterfaceDescriptor. Isolate behavior for those cases with this macro. |
| 322 | // An attempt to retrieve a descriptor will fail. |
| 323 | #define DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR() \ |
| 324 | public: \ |
| 325 | virtual CallInterfaceDescriptor GetCallInterfaceDescriptor() OVERRIDE { \ |
| 326 | UNREACHABLE(); \ |
| 327 | return CallInterfaceDescriptor(); \ |
| 328 | } |
| 329 | |
| 330 | |
| 331 | class PlatformCodeStub : public CodeStub { |
| 332 | public: |
| 333 | // Retrieve the code for the stub. Generate the code if needed. |
| 334 | virtual Handle<Code> GenerateCode() OVERRIDE; |
| 335 | |
| 336 | virtual Code::Kind GetCodeKind() const { return Code::STUB; } |
| 337 | |
| 338 | protected: |
| 339 | explicit PlatformCodeStub(Isolate* isolate) : CodeStub(isolate) {} |
| 340 | |
| 341 | // Generates the assembler code for the stub. |
| 342 | virtual void Generate(MacroAssembler* masm) = 0; |
| 343 | |
| 344 | DEFINE_CODE_STUB_BASE(PlatformCodeStub, CodeStub); |
| 345 | }; |
| 346 | |
| 347 | |
| 348 | enum StubFunctionMode { NOT_JS_FUNCTION_STUB_MODE, JS_FUNCTION_STUB_MODE }; |
| 349 | enum HandlerArgumentsMode { DONT_PASS_ARGUMENTS, PASS_ARGUMENTS }; |
| 350 | |
| 351 | |
| 352 | class CodeStubDescriptor { |
| 353 | public: |
| 354 | explicit CodeStubDescriptor(CodeStub* stub); |
| 355 | |
| 356 | CodeStubDescriptor(Isolate* isolate, uint32_t stub_key); |
| 357 | |
| 358 | void Initialize(Address deoptimization_handler = NULL, |
| 359 | int hint_stack_parameter_count = -1, |
| 360 | StubFunctionMode function_mode = NOT_JS_FUNCTION_STUB_MODE); |
| 361 | void Initialize(Register stack_parameter_count, |
| 362 | Address deoptimization_handler = NULL, |
| 363 | int hint_stack_parameter_count = -1, |
| 364 | StubFunctionMode function_mode = NOT_JS_FUNCTION_STUB_MODE, |
| 365 | HandlerArgumentsMode handler_mode = DONT_PASS_ARGUMENTS); |
| 366 | |
| 367 | void SetMissHandler(ExternalReference handler) { |
| 368 | miss_handler_ = handler; |
| 369 | has_miss_handler_ = true; |
| 370 | // Our miss handler infrastructure doesn't currently support |
| 371 | // variable stack parameter counts. |
| 372 | DCHECK(!stack_parameter_count_.is_valid()); |
| 373 | } |
| 374 | |
| 375 | void set_call_descriptor(CallInterfaceDescriptor d) { call_descriptor_ = d; } |
| 376 | CallInterfaceDescriptor call_descriptor() const { return call_descriptor_; } |
| 377 | |
| 378 | int GetEnvironmentParameterCount() const { |
| 379 | return call_descriptor().GetEnvironmentParameterCount(); |
| 380 | } |
| 381 | |
| 382 | Representation GetEnvironmentParameterRepresentation(int index) const { |
| 383 | return call_descriptor().GetEnvironmentParameterRepresentation(index); |
| 384 | } |
| 385 | |
| 386 | ExternalReference miss_handler() const { |
| 387 | DCHECK(has_miss_handler_); |
| 388 | return miss_handler_; |
| 389 | } |
| 390 | |
| 391 | bool has_miss_handler() const { |
| 392 | return has_miss_handler_; |
| 393 | } |
| 394 | |
| 395 | bool IsEnvironmentParameterCountRegister(int index) const { |
| 396 | return call_descriptor().GetEnvironmentParameterRegister(index).is( |
| 397 | stack_parameter_count_); |
| 398 | } |
| 399 | |
| 400 | int GetHandlerParameterCount() const { |
| 401 | int params = call_descriptor().GetEnvironmentParameterCount(); |
| 402 | if (handler_arguments_mode_ == PASS_ARGUMENTS) { |
| 403 | params += 1; |
| 404 | } |
| 405 | return params; |
| 406 | } |
| 407 | |
| 408 | int hint_stack_parameter_count() const { return hint_stack_parameter_count_; } |
| 409 | Register stack_parameter_count() const { return stack_parameter_count_; } |
| 410 | StubFunctionMode function_mode() const { return function_mode_; } |
| 411 | Address deoptimization_handler() const { return deoptimization_handler_; } |
| 412 | |
| 413 | private: |
| 414 | CallInterfaceDescriptor call_descriptor_; |
| 415 | Register stack_parameter_count_; |
| 416 | // If hint_stack_parameter_count_ > 0, the code stub can optimize the |
| 417 | // return sequence. Default value is -1, which means it is ignored. |
| 418 | int hint_stack_parameter_count_; |
| 419 | StubFunctionMode function_mode_; |
| 420 | |
| 421 | Address deoptimization_handler_; |
| 422 | HandlerArgumentsMode handler_arguments_mode_; |
| 423 | |
| 424 | ExternalReference miss_handler_; |
| 425 | bool has_miss_handler_; |
| 426 | }; |
| 427 | |
| 428 | |
| 429 | class HydrogenCodeStub : public CodeStub { |
| 430 | public: |
| 431 | enum InitializationState { |
| 432 | UNINITIALIZED, |
| 433 | INITIALIZED |
| 434 | }; |
| 435 | |
| 436 | virtual Code::Kind GetCodeKind() const { return Code::STUB; } |
| 437 | |
| 438 | template<class SubClass> |
| 439 | static Handle<Code> GetUninitialized(Isolate* isolate) { |
| 440 | SubClass::GenerateAheadOfTime(isolate); |
| 441 | return SubClass().GetCode(isolate); |
| 442 | } |
| 443 | |
| 444 | // Retrieve the code for the stub. Generate the code if needed. |
| 445 | virtual Handle<Code> GenerateCode() = 0; |
| 446 | |
| 447 | bool IsUninitialized() const { return IsMissBits::decode(minor_key_); } |
| 448 | |
| 449 | Handle<Code> GenerateLightweightMissCode(ExternalReference miss); |
| 450 | |
| 451 | template<class StateType> |
| 452 | void TraceTransition(StateType from, StateType to); |
| 453 | |
| 454 | protected: |
| 455 | explicit HydrogenCodeStub(Isolate* isolate, |
| 456 | InitializationState state = INITIALIZED) |
| 457 | : CodeStub(isolate) { |
| 458 | minor_key_ = IsMissBits::encode(state == UNINITIALIZED); |
| 459 | } |
| 460 | |
| 461 | void set_sub_minor_key(uint32_t key) { |
| 462 | minor_key_ = SubMinorKeyBits::update(minor_key_, key); |
| 463 | } |
| 464 | |
| 465 | uint32_t sub_minor_key() const { return SubMinorKeyBits::decode(minor_key_); } |
| 466 | |
| 467 | static const int kSubMinorKeyBits = kStubMinorKeyBits - 1; |
| 468 | |
| 469 | private: |
| 470 | class IsMissBits : public BitField<bool, kSubMinorKeyBits, 1> {}; |
| 471 | class SubMinorKeyBits : public BitField<int, 0, kSubMinorKeyBits> {}; |
| 472 | |
| 473 | void GenerateLightweightMiss(MacroAssembler* masm, ExternalReference miss); |
| 474 | |
| 475 | DEFINE_CODE_STUB_BASE(HydrogenCodeStub, CodeStub); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 476 | }; |
| 477 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 478 | |
| 479 | // Helper interface to prepare to/restore after making runtime calls. |
| 480 | class RuntimeCallHelper { |
| 481 | public: |
| 482 | virtual ~RuntimeCallHelper() {} |
| 483 | |
| 484 | virtual void BeforeCall(MacroAssembler* masm) const = 0; |
| 485 | |
| 486 | virtual void AfterCall(MacroAssembler* masm) const = 0; |
| 487 | |
| 488 | protected: |
| 489 | RuntimeCallHelper() {} |
| 490 | |
| 491 | private: |
| 492 | DISALLOW_COPY_AND_ASSIGN(RuntimeCallHelper); |
| 493 | }; |
| 494 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 495 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 496 | } } // namespace v8::internal |
| 497 | |
| 498 | #if V8_TARGET_ARCH_IA32 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 499 | #include "src/ia32/code-stubs-ia32.h" |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 500 | #elif V8_TARGET_ARCH_X64 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 501 | #include "src/x64/code-stubs-x64.h" |
| 502 | #elif V8_TARGET_ARCH_ARM64 |
| 503 | #include "src/arm64/code-stubs-arm64.h" |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 504 | #elif V8_TARGET_ARCH_ARM |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 505 | #include "src/arm/code-stubs-arm.h" |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 506 | #elif V8_TARGET_ARCH_MIPS |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 507 | #include "src/mips/code-stubs-mips.h" |
| 508 | #elif V8_TARGET_ARCH_MIPS64 |
| 509 | #include "src/mips64/code-stubs-mips64.h" |
| 510 | #elif V8_TARGET_ARCH_X87 |
| 511 | #include "src/x87/code-stubs-x87.h" |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 512 | #else |
| 513 | #error Unsupported target architecture. |
| 514 | #endif |
| 515 | |
| 516 | namespace v8 { |
| 517 | namespace internal { |
| 518 | |
| 519 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 520 | // RuntimeCallHelper implementation used in stubs: enters/leaves a |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 521 | // newly created internal frame before/after the runtime call. |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 522 | class StubRuntimeCallHelper : public RuntimeCallHelper { |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 523 | public: |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 524 | StubRuntimeCallHelper() {} |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 525 | |
| 526 | virtual void BeforeCall(MacroAssembler* masm) const; |
| 527 | |
| 528 | virtual void AfterCall(MacroAssembler* masm) const; |
| 529 | }; |
| 530 | |
| 531 | |
| 532 | // Trivial RuntimeCallHelper implementation. |
| 533 | class NopRuntimeCallHelper : public RuntimeCallHelper { |
| 534 | public: |
| 535 | NopRuntimeCallHelper() {} |
| 536 | |
| 537 | virtual void BeforeCall(MacroAssembler* masm) const {} |
| 538 | |
| 539 | virtual void AfterCall(MacroAssembler* masm) const {} |
| 540 | }; |
| 541 | |
| 542 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 543 | class ToNumberStub: public HydrogenCodeStub { |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 544 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 545 | explicit ToNumberStub(Isolate* isolate) : HydrogenCodeStub(isolate) { } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 546 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 547 | DEFINE_CALL_INTERFACE_DESCRIPTOR(ToNumber); |
| 548 | DEFINE_HYDROGEN_CODE_STUB(ToNumber, HydrogenCodeStub); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 549 | }; |
| 550 | |
| 551 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 552 | class NumberToStringStub FINAL : public HydrogenCodeStub { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 553 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 554 | explicit NumberToStringStub(Isolate* isolate) : HydrogenCodeStub(isolate) {} |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 555 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 556 | // Parameters accessed via CodeStubGraphBuilder::GetParameter() |
| 557 | static const int kNumber = 0; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 558 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 559 | DEFINE_CALL_INTERFACE_DESCRIPTOR(NumberToString); |
| 560 | DEFINE_HYDROGEN_CODE_STUB(NumberToString, HydrogenCodeStub); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 561 | }; |
| 562 | |
| 563 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 564 | class FastNewClosureStub : public HydrogenCodeStub { |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 565 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 566 | FastNewClosureStub(Isolate* isolate, StrictMode strict_mode, |
| 567 | FunctionKind kind) |
| 568 | : HydrogenCodeStub(isolate) { |
| 569 | DCHECK(IsValidFunctionKind(kind)); |
| 570 | set_sub_minor_key(StrictModeBits::encode(strict_mode) | |
| 571 | FunctionKindBits::encode(kind)); |
| 572 | } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 573 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 574 | StrictMode strict_mode() const { |
| 575 | return StrictModeBits::decode(sub_minor_key()); |
| 576 | } |
| 577 | |
| 578 | FunctionKind kind() const { |
| 579 | return FunctionKindBits::decode(sub_minor_key()); |
| 580 | } |
| 581 | bool is_arrow() const { return IsArrowFunction(kind()); } |
| 582 | bool is_generator() const { return IsGeneratorFunction(kind()); } |
| 583 | bool is_concise_method() const { return IsConciseMethod(kind()); } |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 584 | |
| 585 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 586 | class StrictModeBits : public BitField<StrictMode, 0, 1> {}; |
| 587 | class FunctionKindBits : public BitField<FunctionKind, 1, 3> {}; |
| 588 | |
| 589 | DEFINE_CALL_INTERFACE_DESCRIPTOR(FastNewClosure); |
| 590 | DEFINE_HYDROGEN_CODE_STUB(FastNewClosure, HydrogenCodeStub); |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 591 | }; |
| 592 | |
| 593 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 594 | class FastNewContextStub FINAL : public HydrogenCodeStub { |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 595 | public: |
| 596 | static const int kMaximumSlots = 64; |
| 597 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 598 | FastNewContextStub(Isolate* isolate, int slots) : HydrogenCodeStub(isolate) { |
| 599 | DCHECK(slots > 0 && slots <= kMaximumSlots); |
| 600 | set_sub_minor_key(SlotsBits::encode(slots)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 601 | } |
| 602 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 603 | int slots() const { return SlotsBits::decode(sub_minor_key()); } |
| 604 | |
| 605 | // Parameters accessed via CodeStubGraphBuilder::GetParameter() |
| 606 | static const int kFunction = 0; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 607 | |
| 608 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 609 | class SlotsBits : public BitField<int, 0, 8> {}; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 610 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 611 | DEFINE_CALL_INTERFACE_DESCRIPTOR(FastNewContext); |
| 612 | DEFINE_HYDROGEN_CODE_STUB(FastNewContext, HydrogenCodeStub); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 613 | }; |
| 614 | |
| 615 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 616 | class FastCloneShallowArrayStub : public HydrogenCodeStub { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 617 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 618 | FastCloneShallowArrayStub(Isolate* isolate, |
| 619 | AllocationSiteMode allocation_site_mode) |
| 620 | : HydrogenCodeStub(isolate) { |
| 621 | set_sub_minor_key(AllocationSiteModeBits::encode(allocation_site_mode)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 622 | } |
| 623 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 624 | AllocationSiteMode allocation_site_mode() const { |
| 625 | return AllocationSiteModeBits::decode(sub_minor_key()); |
| 626 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 627 | |
| 628 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 629 | class AllocationSiteModeBits: public BitField<AllocationSiteMode, 0, 1> {}; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 630 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 631 | DEFINE_CALL_INTERFACE_DESCRIPTOR(FastCloneShallowArray); |
| 632 | DEFINE_HYDROGEN_CODE_STUB(FastCloneShallowArray, HydrogenCodeStub); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 633 | }; |
| 634 | |
| 635 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 636 | class FastCloneShallowObjectStub : public HydrogenCodeStub { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 637 | public: |
| 638 | // Maximum number of properties in copied object. |
| 639 | static const int kMaximumClonedProperties = 6; |
| 640 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 641 | FastCloneShallowObjectStub(Isolate* isolate, int length) |
| 642 | : HydrogenCodeStub(isolate) { |
| 643 | DCHECK_GE(length, 0); |
| 644 | DCHECK_LE(length, kMaximumClonedProperties); |
| 645 | set_sub_minor_key(LengthBits::encode(length)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 646 | } |
| 647 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 648 | int length() const { return LengthBits::decode(sub_minor_key()); } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 649 | |
| 650 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 651 | class LengthBits : public BitField<int, 0, 4> {}; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 652 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 653 | DEFINE_CALL_INTERFACE_DESCRIPTOR(FastCloneShallowObject); |
| 654 | DEFINE_HYDROGEN_CODE_STUB(FastCloneShallowObject, HydrogenCodeStub); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 655 | }; |
| 656 | |
| 657 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 658 | class CreateAllocationSiteStub : public HydrogenCodeStub { |
| 659 | public: |
| 660 | explicit CreateAllocationSiteStub(Isolate* isolate) |
| 661 | : HydrogenCodeStub(isolate) { } |
| 662 | |
| 663 | static void GenerateAheadOfTime(Isolate* isolate); |
| 664 | |
| 665 | DEFINE_CALL_INTERFACE_DESCRIPTOR(CreateAllocationSite); |
| 666 | DEFINE_HYDROGEN_CODE_STUB(CreateAllocationSite, HydrogenCodeStub); |
| 667 | }; |
| 668 | |
| 669 | |
| 670 | class InstanceofStub: public PlatformCodeStub { |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 671 | public: |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 672 | enum Flags { |
| 673 | kNoFlags = 0, |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 674 | kArgsInRegisters = 1 << 0, |
| 675 | kCallSiteInlineCheck = 1 << 1, |
| 676 | kReturnTrueFalseObject = 1 << 2 |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 677 | }; |
| 678 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 679 | InstanceofStub(Isolate* isolate, Flags flags) : PlatformCodeStub(isolate) { |
| 680 | minor_key_ = FlagBits::encode(flags); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 681 | } |
| 682 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 683 | static Register left() { return InstanceofDescriptor::left(); } |
| 684 | static Register right() { return InstanceofDescriptor::right(); } |
| 685 | |
| 686 | virtual CallInterfaceDescriptor GetCallInterfaceDescriptor() OVERRIDE { |
| 687 | if (HasArgsInRegisters()) { |
| 688 | return InstanceofDescriptor(isolate()); |
| 689 | } |
| 690 | return ContextOnlyDescriptor(isolate()); |
| 691 | } |
| 692 | |
| 693 | private: |
| 694 | Flags flags() const { return FlagBits::decode(minor_key_); } |
| 695 | |
| 696 | bool HasArgsInRegisters() const { return (flags() & kArgsInRegisters) != 0; } |
| 697 | |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 698 | bool HasCallSiteInlineCheck() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 699 | return (flags() & kCallSiteInlineCheck) != 0; |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 700 | } |
| 701 | |
| 702 | bool ReturnTrueFalseObject() const { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 703 | return (flags() & kReturnTrueFalseObject) != 0; |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 704 | } |
| 705 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 706 | virtual void PrintName(OStream& os) const OVERRIDE; // NOLINT |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 707 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 708 | class FlagBits : public BitField<Flags, 0, 3> {}; |
| 709 | |
| 710 | DEFINE_PLATFORM_CODE_STUB(Instanceof, PlatformCodeStub); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 711 | }; |
| 712 | |
| 713 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 714 | enum AllocationSiteOverrideMode { |
| 715 | DONT_OVERRIDE, |
| 716 | DISABLE_ALLOCATION_SITES, |
| 717 | LAST_ALLOCATION_SITE_OVERRIDE_MODE = DISABLE_ALLOCATION_SITES |
| 718 | }; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 719 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 720 | |
| 721 | class ArrayConstructorStub: public PlatformCodeStub { |
| 722 | public: |
| 723 | enum ArgumentCountKey { ANY, NONE, ONE, MORE_THAN_ONE }; |
| 724 | |
| 725 | ArrayConstructorStub(Isolate* isolate, int argument_count); |
| 726 | |
| 727 | explicit ArrayConstructorStub(Isolate* isolate); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 728 | |
| 729 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 730 | ArgumentCountKey argument_count() const { |
| 731 | return ArgumentCountBits::decode(minor_key_); |
| 732 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 733 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 734 | void GenerateDispatchToArrayStub(MacroAssembler* masm, |
| 735 | AllocationSiteOverrideMode mode); |
| 736 | |
| 737 | virtual void PrintName(OStream& os) const OVERRIDE; // NOLINT |
| 738 | |
| 739 | class ArgumentCountBits : public BitField<ArgumentCountKey, 0, 2> {}; |
| 740 | |
| 741 | DEFINE_CALL_INTERFACE_DESCRIPTOR(ArrayConstructor); |
| 742 | DEFINE_PLATFORM_CODE_STUB(ArrayConstructor, PlatformCodeStub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 743 | }; |
| 744 | |
| 745 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 746 | class InternalArrayConstructorStub: public PlatformCodeStub { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 747 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 748 | explicit InternalArrayConstructorStub(Isolate* isolate); |
| 749 | |
| 750 | private: |
| 751 | void GenerateCase(MacroAssembler* masm, ElementsKind kind); |
| 752 | |
| 753 | DEFINE_CALL_INTERFACE_DESCRIPTOR(InternalArrayConstructor); |
| 754 | DEFINE_PLATFORM_CODE_STUB(InternalArrayConstructor, PlatformCodeStub); |
| 755 | }; |
| 756 | |
| 757 | |
| 758 | class MathPowStub: public PlatformCodeStub { |
| 759 | public: |
| 760 | enum ExponentType { INTEGER, DOUBLE, TAGGED, ON_STACK }; |
| 761 | |
| 762 | MathPowStub(Isolate* isolate, ExponentType exponent_type) |
| 763 | : PlatformCodeStub(isolate) { |
| 764 | minor_key_ = ExponentTypeBits::encode(exponent_type); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 765 | } |
| 766 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 767 | virtual CallInterfaceDescriptor GetCallInterfaceDescriptor() OVERRIDE { |
| 768 | if (exponent_type() == TAGGED) { |
| 769 | return MathPowTaggedDescriptor(isolate()); |
| 770 | } else if (exponent_type() == INTEGER) { |
| 771 | return MathPowIntegerDescriptor(isolate()); |
| 772 | } |
| 773 | // A CallInterfaceDescriptor doesn't specify double registers (yet). |
| 774 | return ContextOnlyDescriptor(isolate()); |
| 775 | } |
| 776 | |
| 777 | private: |
| 778 | ExponentType exponent_type() const { |
| 779 | return ExponentTypeBits::decode(minor_key_); |
| 780 | } |
| 781 | |
| 782 | class ExponentTypeBits : public BitField<ExponentType, 0, 2> {}; |
| 783 | |
| 784 | DEFINE_PLATFORM_CODE_STUB(MathPow, PlatformCodeStub); |
| 785 | }; |
| 786 | |
| 787 | |
| 788 | class CallICStub: public PlatformCodeStub { |
| 789 | public: |
| 790 | CallICStub(Isolate* isolate, const CallICState& state) |
| 791 | : PlatformCodeStub(isolate) { |
| 792 | minor_key_ = state.GetExtraICState(); |
| 793 | } |
| 794 | |
| 795 | static int ExtractArgcFromMinorKey(int minor_key) { |
| 796 | CallICState state(static_cast<ExtraICState>(minor_key)); |
| 797 | return state.arg_count(); |
| 798 | } |
| 799 | |
| 800 | virtual Code::Kind GetCodeKind() const OVERRIDE { return Code::CALL_IC; } |
| 801 | |
| 802 | virtual InlineCacheState GetICState() const OVERRIDE { return DEFAULT; } |
| 803 | |
| 804 | virtual ExtraICState GetExtraICState() const FINAL OVERRIDE { |
| 805 | return static_cast<ExtraICState>(minor_key_); |
| 806 | } |
| 807 | |
| 808 | protected: |
| 809 | bool CallAsMethod() const { |
| 810 | return state().call_type() == CallICState::METHOD; |
| 811 | } |
| 812 | |
| 813 | int arg_count() const { return state().arg_count(); } |
| 814 | |
| 815 | CallICState state() const { |
| 816 | return CallICState(static_cast<ExtraICState>(minor_key_)); |
| 817 | } |
| 818 | |
| 819 | // Code generation helpers. |
| 820 | void GenerateMiss(MacroAssembler* masm); |
| 821 | |
| 822 | private: |
| 823 | virtual void PrintState(OStream& os) const OVERRIDE; // NOLINT |
| 824 | |
| 825 | DEFINE_CALL_INTERFACE_DESCRIPTOR(CallFunctionWithFeedback); |
| 826 | DEFINE_PLATFORM_CODE_STUB(CallIC, PlatformCodeStub); |
| 827 | }; |
| 828 | |
| 829 | |
| 830 | class CallIC_ArrayStub: public CallICStub { |
| 831 | public: |
| 832 | CallIC_ArrayStub(Isolate* isolate, const CallICState& state_in) |
| 833 | : CallICStub(isolate, state_in) {} |
| 834 | |
| 835 | virtual InlineCacheState GetICState() const FINAL OVERRIDE { |
| 836 | return MONOMORPHIC; |
| 837 | } |
| 838 | |
| 839 | private: |
| 840 | virtual void PrintState(OStream& os) const OVERRIDE; // NOLINT |
| 841 | |
| 842 | DEFINE_PLATFORM_CODE_STUB(CallIC_Array, CallICStub); |
| 843 | }; |
| 844 | |
| 845 | |
| 846 | // TODO(verwaest): Translate to hydrogen code stub. |
| 847 | class FunctionPrototypeStub : public PlatformCodeStub { |
| 848 | public: |
| 849 | explicit FunctionPrototypeStub(Isolate* isolate) |
| 850 | : PlatformCodeStub(isolate) {} |
| 851 | |
| 852 | virtual Code::Kind GetCodeKind() const { return Code::HANDLER; } |
| 853 | |
| 854 | // TODO(mvstanton): only the receiver register is accessed. When this is |
| 855 | // translated to a hydrogen code stub, a new CallInterfaceDescriptor |
| 856 | // should be created that just uses that register for more efficient code. |
| 857 | DEFINE_CALL_INTERFACE_DESCRIPTOR(Load); |
| 858 | DEFINE_PLATFORM_CODE_STUB(FunctionPrototype, PlatformCodeStub); |
| 859 | }; |
| 860 | |
| 861 | |
| 862 | // TODO(mvstanton): Translate to hydrogen code stub. |
| 863 | class LoadIndexedInterceptorStub : public PlatformCodeStub { |
| 864 | public: |
| 865 | explicit LoadIndexedInterceptorStub(Isolate* isolate) |
| 866 | : PlatformCodeStub(isolate) {} |
| 867 | |
| 868 | virtual Code::Kind GetCodeKind() const { return Code::HANDLER; } |
| 869 | virtual Code::StubType GetStubType() { return Code::FAST; } |
| 870 | |
| 871 | DEFINE_CALL_INTERFACE_DESCRIPTOR(Load); |
| 872 | DEFINE_PLATFORM_CODE_STUB(LoadIndexedInterceptor, PlatformCodeStub); |
| 873 | }; |
| 874 | |
| 875 | |
| 876 | class HandlerStub : public HydrogenCodeStub { |
| 877 | public: |
| 878 | virtual Code::Kind GetCodeKind() const { return Code::HANDLER; } |
| 879 | virtual ExtraICState GetExtraICState() const { return kind(); } |
| 880 | virtual InlineCacheState GetICState() const { return MONOMORPHIC; } |
| 881 | |
| 882 | virtual void InitializeDescriptor(CodeStubDescriptor* descriptor) OVERRIDE; |
| 883 | |
| 884 | virtual CallInterfaceDescriptor GetCallInterfaceDescriptor() OVERRIDE; |
| 885 | |
| 886 | protected: |
| 887 | explicit HandlerStub(Isolate* isolate) : HydrogenCodeStub(isolate) {} |
| 888 | |
| 889 | virtual Code::Kind kind() const = 0; |
| 890 | |
| 891 | DEFINE_CODE_STUB_BASE(HandlerStub, HydrogenCodeStub); |
| 892 | }; |
| 893 | |
| 894 | |
| 895 | class LoadFieldStub: public HandlerStub { |
| 896 | public: |
| 897 | LoadFieldStub(Isolate* isolate, FieldIndex index) : HandlerStub(isolate) { |
| 898 | int property_index_key = index.GetFieldAccessStubKey(); |
| 899 | set_sub_minor_key(LoadFieldByIndexBits::encode(property_index_key)); |
| 900 | } |
| 901 | |
| 902 | FieldIndex index() const { |
| 903 | int property_index_key = LoadFieldByIndexBits::decode(sub_minor_key()); |
| 904 | return FieldIndex::FromFieldAccessStubKey(property_index_key); |
| 905 | } |
| 906 | |
| 907 | protected: |
| 908 | virtual Code::Kind kind() const { return Code::LOAD_IC; } |
| 909 | virtual Code::StubType GetStubType() { return Code::FAST; } |
| 910 | |
| 911 | private: |
| 912 | class LoadFieldByIndexBits : public BitField<int, 0, 13> {}; |
| 913 | |
| 914 | DEFINE_HANDLER_CODE_STUB(LoadField, HandlerStub); |
| 915 | }; |
| 916 | |
| 917 | |
| 918 | class KeyedLoadSloppyArgumentsStub : public HandlerStub { |
| 919 | public: |
| 920 | explicit KeyedLoadSloppyArgumentsStub(Isolate* isolate) |
| 921 | : HandlerStub(isolate) {} |
| 922 | |
| 923 | protected: |
| 924 | virtual Code::Kind kind() const { return Code::KEYED_LOAD_IC; } |
| 925 | virtual Code::StubType GetStubType() { return Code::FAST; } |
| 926 | |
| 927 | private: |
| 928 | DEFINE_HANDLER_CODE_STUB(KeyedLoadSloppyArguments, HandlerStub); |
| 929 | }; |
| 930 | |
| 931 | |
| 932 | class LoadConstantStub : public HandlerStub { |
| 933 | public: |
| 934 | LoadConstantStub(Isolate* isolate, int constant_index) |
| 935 | : HandlerStub(isolate) { |
| 936 | set_sub_minor_key(ConstantIndexBits::encode(constant_index)); |
| 937 | } |
| 938 | |
| 939 | int constant_index() const { |
| 940 | return ConstantIndexBits::decode(sub_minor_key()); |
| 941 | } |
| 942 | |
| 943 | protected: |
| 944 | virtual Code::Kind kind() const { return Code::LOAD_IC; } |
| 945 | virtual Code::StubType GetStubType() { return Code::FAST; } |
| 946 | |
| 947 | private: |
| 948 | class ConstantIndexBits : public BitField<int, 0, kSubMinorKeyBits> {}; |
| 949 | |
| 950 | DEFINE_HANDLER_CODE_STUB(LoadConstant, HandlerStub); |
| 951 | }; |
| 952 | |
| 953 | |
| 954 | class StringLengthStub: public HandlerStub { |
| 955 | public: |
| 956 | explicit StringLengthStub(Isolate* isolate) : HandlerStub(isolate) {} |
| 957 | |
| 958 | protected: |
| 959 | virtual Code::Kind kind() const { return Code::LOAD_IC; } |
| 960 | virtual Code::StubType GetStubType() { return Code::FAST; } |
| 961 | |
| 962 | DEFINE_HANDLER_CODE_STUB(StringLength, HandlerStub); |
| 963 | }; |
| 964 | |
| 965 | |
| 966 | class StoreFieldStub : public HandlerStub { |
| 967 | public: |
| 968 | StoreFieldStub(Isolate* isolate, FieldIndex index, |
| 969 | Representation representation) |
| 970 | : HandlerStub(isolate) { |
| 971 | int property_index_key = index.GetFieldAccessStubKey(); |
| 972 | uint8_t repr = PropertyDetails::EncodeRepresentation(representation); |
| 973 | set_sub_minor_key(StoreFieldByIndexBits::encode(property_index_key) | |
| 974 | RepresentationBits::encode(repr)); |
| 975 | } |
| 976 | |
| 977 | FieldIndex index() const { |
| 978 | int property_index_key = StoreFieldByIndexBits::decode(sub_minor_key()); |
| 979 | return FieldIndex::FromFieldAccessStubKey(property_index_key); |
| 980 | } |
| 981 | |
| 982 | Representation representation() { |
| 983 | uint8_t repr = RepresentationBits::decode(sub_minor_key()); |
| 984 | return PropertyDetails::DecodeRepresentation(repr); |
| 985 | } |
| 986 | |
| 987 | protected: |
| 988 | virtual Code::Kind kind() const { return Code::STORE_IC; } |
| 989 | virtual Code::StubType GetStubType() { return Code::FAST; } |
| 990 | |
| 991 | private: |
| 992 | class StoreFieldByIndexBits : public BitField<int, 0, 13> {}; |
| 993 | class RepresentationBits : public BitField<uint8_t, 13, 4> {}; |
| 994 | |
| 995 | DEFINE_HANDLER_CODE_STUB(StoreField, HandlerStub); |
| 996 | }; |
| 997 | |
| 998 | |
| 999 | class StoreGlobalStub : public HandlerStub { |
| 1000 | public: |
| 1001 | StoreGlobalStub(Isolate* isolate, bool is_constant, bool check_global) |
| 1002 | : HandlerStub(isolate) { |
| 1003 | set_sub_minor_key(IsConstantBits::encode(is_constant) | |
| 1004 | CheckGlobalBits::encode(check_global)); |
| 1005 | } |
| 1006 | |
| 1007 | static Handle<HeapObject> global_placeholder(Isolate* isolate) { |
| 1008 | return isolate->factory()->uninitialized_value(); |
| 1009 | } |
| 1010 | |
| 1011 | Handle<Code> GetCodeCopyFromTemplate(Handle<GlobalObject> global, |
| 1012 | Handle<PropertyCell> cell) { |
| 1013 | if (check_global()) { |
| 1014 | Code::FindAndReplacePattern pattern; |
| 1015 | pattern.Add(Handle<Map>(global_placeholder(isolate())->map()), global); |
| 1016 | pattern.Add(isolate()->factory()->meta_map(), Handle<Map>(global->map())); |
| 1017 | pattern.Add(isolate()->factory()->global_property_cell_map(), cell); |
| 1018 | return CodeStub::GetCodeCopy(pattern); |
| 1019 | } else { |
| 1020 | Code::FindAndReplacePattern pattern; |
| 1021 | pattern.Add(isolate()->factory()->global_property_cell_map(), cell); |
| 1022 | return CodeStub::GetCodeCopy(pattern); |
| 1023 | } |
| 1024 | } |
| 1025 | |
| 1026 | virtual Code::Kind kind() const { return Code::STORE_IC; } |
| 1027 | |
| 1028 | bool is_constant() const { return IsConstantBits::decode(sub_minor_key()); } |
| 1029 | |
| 1030 | bool check_global() const { return CheckGlobalBits::decode(sub_minor_key()); } |
| 1031 | |
| 1032 | void set_is_constant(bool value) { |
| 1033 | set_sub_minor_key(IsConstantBits::update(sub_minor_key(), value)); |
| 1034 | } |
| 1035 | |
| 1036 | Representation representation() { |
| 1037 | return Representation::FromKind( |
| 1038 | RepresentationBits::decode(sub_minor_key())); |
| 1039 | } |
| 1040 | |
| 1041 | void set_representation(Representation r) { |
| 1042 | set_sub_minor_key(RepresentationBits::update(sub_minor_key(), r.kind())); |
| 1043 | } |
| 1044 | |
| 1045 | private: |
| 1046 | class IsConstantBits: public BitField<bool, 0, 1> {}; |
| 1047 | class RepresentationBits: public BitField<Representation::Kind, 1, 8> {}; |
| 1048 | class CheckGlobalBits: public BitField<bool, 9, 1> {}; |
| 1049 | |
| 1050 | DEFINE_HANDLER_CODE_STUB(StoreGlobal, HandlerStub); |
| 1051 | }; |
| 1052 | |
| 1053 | |
| 1054 | class CallApiFunctionStub : public PlatformCodeStub { |
| 1055 | public: |
| 1056 | CallApiFunctionStub(Isolate* isolate, |
| 1057 | bool is_store, |
| 1058 | bool call_data_undefined, |
| 1059 | int argc) : PlatformCodeStub(isolate) { |
| 1060 | minor_key_ = IsStoreBits::encode(is_store) | |
| 1061 | CallDataUndefinedBits::encode(call_data_undefined) | |
| 1062 | ArgumentBits::encode(argc); |
| 1063 | DCHECK(!is_store || argc == 1); |
| 1064 | } |
| 1065 | |
| 1066 | private: |
| 1067 | bool is_store() const { return IsStoreBits::decode(minor_key_); } |
| 1068 | bool call_data_undefined() const { |
| 1069 | return CallDataUndefinedBits::decode(minor_key_); |
| 1070 | } |
| 1071 | int argc() const { return ArgumentBits::decode(minor_key_); } |
| 1072 | |
| 1073 | class IsStoreBits: public BitField<bool, 0, 1> {}; |
| 1074 | class CallDataUndefinedBits: public BitField<bool, 1, 1> {}; |
| 1075 | class ArgumentBits: public BitField<int, 2, Code::kArgumentsBits> {}; |
| 1076 | STATIC_ASSERT(Code::kArgumentsBits + 2 <= kStubMinorKeyBits); |
| 1077 | |
| 1078 | DEFINE_CALL_INTERFACE_DESCRIPTOR(ApiFunction); |
| 1079 | DEFINE_PLATFORM_CODE_STUB(CallApiFunction, PlatformCodeStub); |
| 1080 | }; |
| 1081 | |
| 1082 | |
| 1083 | class CallApiGetterStub : public PlatformCodeStub { |
| 1084 | public: |
| 1085 | explicit CallApiGetterStub(Isolate* isolate) : PlatformCodeStub(isolate) {} |
| 1086 | |
| 1087 | DEFINE_CALL_INTERFACE_DESCRIPTOR(ApiGetter); |
| 1088 | DEFINE_PLATFORM_CODE_STUB(CallApiGetter, PlatformCodeStub); |
| 1089 | }; |
| 1090 | |
| 1091 | |
| 1092 | class BinaryOpICStub : public HydrogenCodeStub { |
| 1093 | public: |
| 1094 | BinaryOpICStub(Isolate* isolate, Token::Value op, |
| 1095 | OverwriteMode mode = NO_OVERWRITE) |
| 1096 | : HydrogenCodeStub(isolate, UNINITIALIZED) { |
| 1097 | BinaryOpICState state(isolate, op, mode); |
| 1098 | set_sub_minor_key(state.GetExtraICState()); |
| 1099 | } |
| 1100 | |
| 1101 | BinaryOpICStub(Isolate* isolate, const BinaryOpICState& state) |
| 1102 | : HydrogenCodeStub(isolate) { |
| 1103 | set_sub_minor_key(state.GetExtraICState()); |
| 1104 | } |
| 1105 | |
| 1106 | static void GenerateAheadOfTime(Isolate* isolate); |
| 1107 | |
| 1108 | virtual Code::Kind GetCodeKind() const OVERRIDE { |
| 1109 | return Code::BINARY_OP_IC; |
| 1110 | } |
| 1111 | |
| 1112 | virtual InlineCacheState GetICState() const FINAL OVERRIDE { |
| 1113 | return state().GetICState(); |
| 1114 | } |
| 1115 | |
| 1116 | virtual ExtraICState GetExtraICState() const FINAL OVERRIDE { |
| 1117 | return static_cast<ExtraICState>(sub_minor_key()); |
| 1118 | } |
| 1119 | |
| 1120 | BinaryOpICState state() const { |
| 1121 | return BinaryOpICState(isolate(), GetExtraICState()); |
| 1122 | } |
| 1123 | |
| 1124 | virtual void PrintState(OStream& os) const FINAL OVERRIDE; // NOLINT |
| 1125 | |
| 1126 | // Parameters accessed via CodeStubGraphBuilder::GetParameter() |
| 1127 | static const int kLeft = 0; |
| 1128 | static const int kRight = 1; |
| 1129 | |
| 1130 | private: |
| 1131 | static void GenerateAheadOfTime(Isolate* isolate, |
| 1132 | const BinaryOpICState& state); |
| 1133 | |
| 1134 | DEFINE_CALL_INTERFACE_DESCRIPTOR(BinaryOp); |
| 1135 | DEFINE_HYDROGEN_CODE_STUB(BinaryOpIC, HydrogenCodeStub); |
| 1136 | }; |
| 1137 | |
| 1138 | |
| 1139 | // TODO(bmeurer): Merge this into the BinaryOpICStub once we have proper tail |
| 1140 | // call support for stubs in Hydrogen. |
| 1141 | class BinaryOpICWithAllocationSiteStub FINAL : public PlatformCodeStub { |
| 1142 | public: |
| 1143 | BinaryOpICWithAllocationSiteStub(Isolate* isolate, |
| 1144 | const BinaryOpICState& state) |
| 1145 | : PlatformCodeStub(isolate) { |
| 1146 | minor_key_ = state.GetExtraICState(); |
| 1147 | } |
| 1148 | |
| 1149 | static void GenerateAheadOfTime(Isolate* isolate); |
| 1150 | |
| 1151 | Handle<Code> GetCodeCopyFromTemplate(Handle<AllocationSite> allocation_site) { |
| 1152 | Code::FindAndReplacePattern pattern; |
| 1153 | pattern.Add(isolate()->factory()->undefined_map(), allocation_site); |
| 1154 | return CodeStub::GetCodeCopy(pattern); |
| 1155 | } |
| 1156 | |
| 1157 | virtual Code::Kind GetCodeKind() const OVERRIDE { |
| 1158 | return Code::BINARY_OP_IC; |
| 1159 | } |
| 1160 | |
| 1161 | virtual InlineCacheState GetICState() const OVERRIDE { |
| 1162 | return state().GetICState(); |
| 1163 | } |
| 1164 | |
| 1165 | virtual ExtraICState GetExtraICState() const OVERRIDE { |
| 1166 | return static_cast<ExtraICState>(minor_key_); |
| 1167 | } |
| 1168 | |
| 1169 | virtual void PrintState(OStream& os) const OVERRIDE; // NOLINT |
| 1170 | |
| 1171 | private: |
| 1172 | BinaryOpICState state() const { |
| 1173 | return BinaryOpICState(isolate(), static_cast<ExtraICState>(minor_key_)); |
| 1174 | } |
| 1175 | |
| 1176 | static void GenerateAheadOfTime(Isolate* isolate, |
| 1177 | const BinaryOpICState& state); |
| 1178 | |
| 1179 | DEFINE_CALL_INTERFACE_DESCRIPTOR(BinaryOpWithAllocationSite); |
| 1180 | DEFINE_PLATFORM_CODE_STUB(BinaryOpICWithAllocationSite, PlatformCodeStub); |
| 1181 | }; |
| 1182 | |
| 1183 | |
| 1184 | class BinaryOpWithAllocationSiteStub FINAL : public BinaryOpICStub { |
| 1185 | public: |
| 1186 | BinaryOpWithAllocationSiteStub(Isolate* isolate, |
| 1187 | Token::Value op, |
| 1188 | OverwriteMode mode) |
| 1189 | : BinaryOpICStub(isolate, op, mode) {} |
| 1190 | |
| 1191 | BinaryOpWithAllocationSiteStub(Isolate* isolate, const BinaryOpICState& state) |
| 1192 | : BinaryOpICStub(isolate, state) {} |
| 1193 | |
| 1194 | virtual Code::Kind GetCodeKind() const FINAL OVERRIDE { |
| 1195 | return Code::STUB; |
| 1196 | } |
| 1197 | |
| 1198 | // Parameters accessed via CodeStubGraphBuilder::GetParameter() |
| 1199 | static const int kAllocationSite = 0; |
| 1200 | static const int kLeft = 1; |
| 1201 | static const int kRight = 2; |
| 1202 | |
| 1203 | DEFINE_CALL_INTERFACE_DESCRIPTOR(BinaryOpWithAllocationSite); |
| 1204 | DEFINE_HYDROGEN_CODE_STUB(BinaryOpWithAllocationSite, BinaryOpICStub); |
| 1205 | }; |
| 1206 | |
| 1207 | |
| 1208 | enum StringAddFlags { |
| 1209 | // Omit both parameter checks. |
| 1210 | STRING_ADD_CHECK_NONE = 0, |
| 1211 | // Check left parameter. |
| 1212 | STRING_ADD_CHECK_LEFT = 1 << 0, |
| 1213 | // Check right parameter. |
| 1214 | STRING_ADD_CHECK_RIGHT = 1 << 1, |
| 1215 | // Check both parameters. |
| 1216 | STRING_ADD_CHECK_BOTH = STRING_ADD_CHECK_LEFT | STRING_ADD_CHECK_RIGHT |
| 1217 | }; |
| 1218 | |
| 1219 | |
| 1220 | class StringAddStub FINAL : public HydrogenCodeStub { |
| 1221 | public: |
| 1222 | StringAddStub(Isolate* isolate, StringAddFlags flags, |
| 1223 | PretenureFlag pretenure_flag) |
| 1224 | : HydrogenCodeStub(isolate) { |
| 1225 | set_sub_minor_key(StringAddFlagsBits::encode(flags) | |
| 1226 | PretenureFlagBits::encode(pretenure_flag)); |
| 1227 | } |
| 1228 | |
| 1229 | StringAddFlags flags() const { |
| 1230 | return StringAddFlagsBits::decode(sub_minor_key()); |
| 1231 | } |
| 1232 | |
| 1233 | PretenureFlag pretenure_flag() const { |
| 1234 | return PretenureFlagBits::decode(sub_minor_key()); |
| 1235 | } |
| 1236 | |
| 1237 | // Parameters accessed via CodeStubGraphBuilder::GetParameter() |
| 1238 | static const int kLeft = 0; |
| 1239 | static const int kRight = 1; |
| 1240 | |
| 1241 | private: |
| 1242 | class StringAddFlagsBits: public BitField<StringAddFlags, 0, 2> {}; |
| 1243 | class PretenureFlagBits: public BitField<PretenureFlag, 2, 1> {}; |
| 1244 | |
| 1245 | virtual void PrintBaseName(OStream& os) const OVERRIDE; // NOLINT |
| 1246 | |
| 1247 | DEFINE_CALL_INTERFACE_DESCRIPTOR(StringAdd); |
| 1248 | DEFINE_HYDROGEN_CODE_STUB(StringAdd, HydrogenCodeStub); |
| 1249 | }; |
| 1250 | |
| 1251 | |
| 1252 | class CompareICStub : public PlatformCodeStub { |
| 1253 | public: |
| 1254 | CompareICStub(Isolate* isolate, Token::Value op, CompareICState::State left, |
| 1255 | CompareICState::State right, CompareICState::State state) |
| 1256 | : PlatformCodeStub(isolate) { |
| 1257 | DCHECK(Token::IsCompareOp(op)); |
| 1258 | minor_key_ = OpBits::encode(op - Token::EQ) | LeftStateBits::encode(left) | |
| 1259 | RightStateBits::encode(right) | StateBits::encode(state); |
| 1260 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1261 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1262 | void set_known_map(Handle<Map> map) { known_map_ = map; } |
| 1263 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1264 | virtual InlineCacheState GetICState() const; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1265 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1266 | Token::Value op() const { |
| 1267 | return static_cast<Token::Value>(Token::EQ + OpBits::decode(minor_key_)); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1268 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1269 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1270 | CompareICState::State left() const { |
| 1271 | return LeftStateBits::decode(minor_key_); |
| 1272 | } |
| 1273 | CompareICState::State right() const { |
| 1274 | return RightStateBits::decode(minor_key_); |
| 1275 | } |
| 1276 | CompareICState::State state() const { return StateBits::decode(minor_key_); } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1277 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1278 | private: |
| 1279 | virtual Code::Kind GetCodeKind() const { return Code::COMPARE_IC; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1280 | |
| 1281 | void GenerateSmis(MacroAssembler* masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1282 | void GenerateNumbers(MacroAssembler* masm); |
| 1283 | void GenerateInternalizedStrings(MacroAssembler* masm); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1284 | void GenerateStrings(MacroAssembler* masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1285 | void GenerateUniqueNames(MacroAssembler* masm); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1286 | void GenerateObjects(MacroAssembler* masm); |
| 1287 | void GenerateMiss(MacroAssembler* masm); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1288 | void GenerateKnownObjects(MacroAssembler* masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1289 | void GenerateGeneric(MacroAssembler* masm); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1290 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1291 | bool strict() const { return op() == Token::EQ_STRICT; } |
| 1292 | Condition GetCondition() const; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1293 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1294 | virtual void AddToSpecialCache(Handle<Code> new_object); |
| 1295 | virtual bool FindCodeInSpecialCache(Code** code_out); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1296 | virtual bool UseSpecialCache() { |
| 1297 | return state() == CompareICState::KNOWN_OBJECT; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1298 | } |
| 1299 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1300 | class OpBits : public BitField<int, 0, 3> {}; |
| 1301 | class LeftStateBits : public BitField<CompareICState::State, 3, 4> {}; |
| 1302 | class RightStateBits : public BitField<CompareICState::State, 7, 4> {}; |
| 1303 | class StateBits : public BitField<CompareICState::State, 11, 4> {}; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1304 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1305 | Handle<Map> known_map_; |
| 1306 | |
| 1307 | DEFINE_CALL_INTERFACE_DESCRIPTOR(BinaryOp); |
| 1308 | DEFINE_PLATFORM_CODE_STUB(CompareIC, PlatformCodeStub); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1309 | }; |
| 1310 | |
| 1311 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1312 | class CompareNilICStub : public HydrogenCodeStub { |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1313 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1314 | Type* GetType(Zone* zone, Handle<Map> map = Handle<Map>()); |
| 1315 | Type* GetInputType(Zone* zone, Handle<Map> map); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1316 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1317 | CompareNilICStub(Isolate* isolate, NilValue nil) : HydrogenCodeStub(isolate) { |
| 1318 | set_sub_minor_key(NilValueBits::encode(nil)); |
| 1319 | } |
| 1320 | |
| 1321 | CompareNilICStub(Isolate* isolate, ExtraICState ic_state, |
| 1322 | InitializationState init_state = INITIALIZED) |
| 1323 | : HydrogenCodeStub(isolate, init_state) { |
| 1324 | set_sub_minor_key(ic_state); |
| 1325 | } |
| 1326 | |
| 1327 | static Handle<Code> GetUninitialized(Isolate* isolate, |
| 1328 | NilValue nil) { |
| 1329 | return CompareNilICStub(isolate, nil, UNINITIALIZED).GetCode(); |
| 1330 | } |
| 1331 | |
| 1332 | virtual InlineCacheState GetICState() const { |
| 1333 | State state = this->state(); |
| 1334 | if (state.Contains(GENERIC)) { |
| 1335 | return MEGAMORPHIC; |
| 1336 | } else if (state.Contains(MONOMORPHIC_MAP)) { |
| 1337 | return MONOMORPHIC; |
| 1338 | } else { |
| 1339 | return PREMONOMORPHIC; |
| 1340 | } |
| 1341 | } |
| 1342 | |
| 1343 | virtual Code::Kind GetCodeKind() const { return Code::COMPARE_NIL_IC; } |
| 1344 | |
| 1345 | virtual ExtraICState GetExtraICState() const { return sub_minor_key(); } |
| 1346 | |
| 1347 | void UpdateStatus(Handle<Object> object); |
| 1348 | |
| 1349 | bool IsMonomorphic() const { return state().Contains(MONOMORPHIC_MAP); } |
| 1350 | |
| 1351 | NilValue nil_value() const { return NilValueBits::decode(sub_minor_key()); } |
| 1352 | |
| 1353 | void ClearState() { |
| 1354 | set_sub_minor_key(TypesBits::update(sub_minor_key(), 0)); |
| 1355 | } |
| 1356 | |
| 1357 | virtual void PrintState(OStream& os) const OVERRIDE; // NOLINT |
| 1358 | virtual void PrintBaseName(OStream& os) const OVERRIDE; // NOLINT |
| 1359 | |
| 1360 | private: |
| 1361 | CompareNilICStub(Isolate* isolate, NilValue nil, |
| 1362 | InitializationState init_state) |
| 1363 | : HydrogenCodeStub(isolate, init_state) { |
| 1364 | set_sub_minor_key(NilValueBits::encode(nil)); |
| 1365 | } |
| 1366 | |
| 1367 | enum CompareNilType { |
| 1368 | UNDEFINED, |
| 1369 | NULL_TYPE, |
| 1370 | MONOMORPHIC_MAP, |
| 1371 | GENERIC, |
| 1372 | NUMBER_OF_TYPES |
| 1373 | }; |
| 1374 | |
| 1375 | // At most 6 different types can be distinguished, because the Code object |
| 1376 | // only has room for a single byte to hold a set and there are two more |
| 1377 | // boolean flags we need to store. :-P |
| 1378 | STATIC_ASSERT(NUMBER_OF_TYPES <= 6); |
| 1379 | |
| 1380 | class State : public EnumSet<CompareNilType, byte> { |
| 1381 | public: |
| 1382 | State() : EnumSet<CompareNilType, byte>(0) { } |
| 1383 | explicit State(byte bits) : EnumSet<CompareNilType, byte>(bits) { } |
| 1384 | }; |
| 1385 | friend OStream& operator<<(OStream& os, const State& s); |
| 1386 | |
| 1387 | State state() const { return State(TypesBits::decode(sub_minor_key())); } |
| 1388 | |
| 1389 | class NilValueBits : public BitField<NilValue, 0, 1> {}; |
| 1390 | class TypesBits : public BitField<byte, 1, NUMBER_OF_TYPES> {}; |
| 1391 | |
| 1392 | friend class CompareNilIC; |
| 1393 | |
| 1394 | DEFINE_CALL_INTERFACE_DESCRIPTOR(CompareNil); |
| 1395 | DEFINE_HYDROGEN_CODE_STUB(CompareNilIC, HydrogenCodeStub); |
| 1396 | }; |
| 1397 | |
| 1398 | |
| 1399 | OStream& operator<<(OStream& os, const CompareNilICStub::State& s); |
| 1400 | |
| 1401 | |
| 1402 | class CEntryStub : public PlatformCodeStub { |
| 1403 | public: |
| 1404 | CEntryStub(Isolate* isolate, int result_size, |
| 1405 | SaveFPRegsMode save_doubles = kDontSaveFPRegs) |
| 1406 | : PlatformCodeStub(isolate) { |
| 1407 | minor_key_ = SaveDoublesBits::encode(save_doubles == kSaveFPRegs); |
| 1408 | DCHECK(result_size == 1 || result_size == 2); |
| 1409 | #ifdef _WIN64 |
| 1410 | minor_key_ = ResultSizeBits::update(minor_key_, result_size); |
| 1411 | #endif // _WIN64 |
| 1412 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1413 | |
| 1414 | // The version of this stub that doesn't save doubles is generated ahead of |
| 1415 | // time, so it's OK to call it from other stubs that can't cope with GC during |
| 1416 | // their code generation. On machines that always have gp registers (x64) we |
| 1417 | // can generate both variants ahead of time. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1418 | static void GenerateAheadOfTime(Isolate* isolate); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1419 | |
| 1420 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1421 | bool save_doubles() const { return SaveDoublesBits::decode(minor_key_); } |
| 1422 | #ifdef _WIN64 |
| 1423 | int result_size() const { return ResultSizeBits::decode(minor_key_); } |
| 1424 | #endif // _WIN64 |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1425 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1426 | bool NeedsImmovableCode(); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1427 | |
| 1428 | class SaveDoublesBits : public BitField<bool, 0, 1> {}; |
| 1429 | class ResultSizeBits : public BitField<int, 1, 3> {}; |
| 1430 | |
| 1431 | DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR(); |
| 1432 | DEFINE_PLATFORM_CODE_STUB(CEntry, PlatformCodeStub); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1433 | }; |
| 1434 | |
| 1435 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1436 | class JSEntryStub : public PlatformCodeStub { |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1437 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1438 | JSEntryStub(Isolate* isolate, StackFrame::Type type) |
| 1439 | : PlatformCodeStub(isolate) { |
| 1440 | DCHECK(type == StackFrame::ENTRY || type == StackFrame::ENTRY_CONSTRUCT); |
| 1441 | minor_key_ = StackFrameTypeBits::encode(type); |
| 1442 | } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1443 | |
| 1444 | private: |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1445 | virtual void FinishCode(Handle<Code> code); |
| 1446 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1447 | virtual void PrintName(OStream& os) const OVERRIDE { // NOLINT |
| 1448 | os << (type() == StackFrame::ENTRY ? "JSEntryStub" |
| 1449 | : "JSConstructEntryStub"); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1450 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1451 | |
| 1452 | StackFrame::Type type() const { |
| 1453 | return StackFrameTypeBits::decode(minor_key_); |
| 1454 | } |
| 1455 | |
| 1456 | class StackFrameTypeBits : public BitField<StackFrame::Type, 0, 5> {}; |
| 1457 | |
| 1458 | int handler_offset_; |
| 1459 | |
| 1460 | DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR(); |
| 1461 | DEFINE_PLATFORM_CODE_STUB(JSEntry, PlatformCodeStub); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1462 | }; |
| 1463 | |
| 1464 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1465 | class ArgumentsAccessStub: public PlatformCodeStub { |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1466 | public: |
| 1467 | enum Type { |
| 1468 | READ_ELEMENT, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1469 | NEW_SLOPPY_FAST, |
| 1470 | NEW_SLOPPY_SLOW, |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1471 | NEW_STRICT |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1472 | }; |
| 1473 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1474 | ArgumentsAccessStub(Isolate* isolate, Type type) : PlatformCodeStub(isolate) { |
| 1475 | minor_key_ = TypeBits::encode(type); |
| 1476 | } |
| 1477 | |
| 1478 | virtual CallInterfaceDescriptor GetCallInterfaceDescriptor() OVERRIDE { |
| 1479 | if (type() == READ_ELEMENT) { |
| 1480 | return ArgumentsAccessReadDescriptor(isolate()); |
| 1481 | } |
| 1482 | return ContextOnlyDescriptor(isolate()); |
| 1483 | } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1484 | |
| 1485 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1486 | Type type() const { return TypeBits::decode(minor_key_); } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1487 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1488 | void GenerateReadElement(MacroAssembler* masm); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1489 | void GenerateNewStrict(MacroAssembler* masm); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1490 | void GenerateNewSloppyFast(MacroAssembler* masm); |
| 1491 | void GenerateNewSloppySlow(MacroAssembler* masm); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1492 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1493 | virtual void PrintName(OStream& os) const OVERRIDE; // NOLINT |
| 1494 | |
| 1495 | class TypeBits : public BitField<Type, 0, 2> {}; |
| 1496 | |
| 1497 | DEFINE_PLATFORM_CODE_STUB(ArgumentsAccess, PlatformCodeStub); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1498 | }; |
| 1499 | |
| 1500 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1501 | class RegExpExecStub: public PlatformCodeStub { |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1502 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1503 | explicit RegExpExecStub(Isolate* isolate) : PlatformCodeStub(isolate) { } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1504 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1505 | DEFINE_CALL_INTERFACE_DESCRIPTOR(ContextOnly); |
| 1506 | DEFINE_PLATFORM_CODE_STUB(RegExpExec, PlatformCodeStub); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1507 | }; |
| 1508 | |
| 1509 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1510 | class RegExpConstructResultStub FINAL : public HydrogenCodeStub { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1511 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1512 | explicit RegExpConstructResultStub(Isolate* isolate) |
| 1513 | : HydrogenCodeStub(isolate) { } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1514 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1515 | // Parameters accessed via CodeStubGraphBuilder::GetParameter() |
| 1516 | static const int kLength = 0; |
| 1517 | static const int kIndex = 1; |
| 1518 | static const int kInput = 2; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1519 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1520 | DEFINE_CALL_INTERFACE_DESCRIPTOR(RegExpConstructResult); |
| 1521 | DEFINE_HYDROGEN_CODE_STUB(RegExpConstructResult, HydrogenCodeStub); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1522 | }; |
| 1523 | |
| 1524 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1525 | class CallFunctionStub: public PlatformCodeStub { |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1526 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1527 | CallFunctionStub(Isolate* isolate, int argc, CallFunctionFlags flags) |
| 1528 | : PlatformCodeStub(isolate) { |
| 1529 | DCHECK(argc >= 0 && argc <= Code::kMaxArguments); |
| 1530 | minor_key_ = ArgcBits::encode(argc) | FlagBits::encode(flags); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1531 | } |
| 1532 | |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 1533 | static int ExtractArgcFromMinorKey(int minor_key) { |
| 1534 | return ArgcBits::decode(minor_key); |
| 1535 | } |
| 1536 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1537 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1538 | int argc() const { return ArgcBits::decode(minor_key_); } |
| 1539 | int flags() const { return FlagBits::decode(minor_key_); } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1540 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1541 | bool CallAsMethod() const { |
| 1542 | return flags() == CALL_AS_METHOD || flags() == WRAP_AND_CALL; |
| 1543 | } |
| 1544 | |
| 1545 | bool NeedsChecks() const { return flags() != WRAP_AND_CALL; } |
| 1546 | |
| 1547 | virtual void PrintName(OStream& os) const OVERRIDE; // NOLINT |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1548 | |
| 1549 | // Minor key encoding in 32 bits with Bitfield <Type, shift, size>. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1550 | class FlagBits : public BitField<CallFunctionFlags, 0, 2> {}; |
| 1551 | class ArgcBits : public BitField<unsigned, 2, Code::kArgumentsBits> {}; |
| 1552 | STATIC_ASSERT(Code::kArgumentsBits + 2 <= kStubMinorKeyBits); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1553 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1554 | DEFINE_CALL_INTERFACE_DESCRIPTOR(CallFunction); |
| 1555 | DEFINE_PLATFORM_CODE_STUB(CallFunction, PlatformCodeStub); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1556 | }; |
| 1557 | |
| 1558 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1559 | class CallConstructStub: public PlatformCodeStub { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1560 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1561 | CallConstructStub(Isolate* isolate, CallConstructorFlags flags) |
| 1562 | : PlatformCodeStub(isolate) { |
| 1563 | minor_key_ = FlagBits::encode(flags); |
| 1564 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1565 | |
| 1566 | virtual void FinishCode(Handle<Code> code) { |
| 1567 | code->set_has_function_cache(RecordCallTarget()); |
| 1568 | } |
| 1569 | |
| 1570 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1571 | CallConstructorFlags flags() const { return FlagBits::decode(minor_key_); } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1572 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1573 | bool RecordCallTarget() const { |
| 1574 | return (flags() & RECORD_CONSTRUCTOR_TARGET) != 0; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1575 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1576 | |
| 1577 | virtual void PrintName(OStream& os) const OVERRIDE; // NOLINT |
| 1578 | |
| 1579 | class FlagBits : public BitField<CallConstructorFlags, 0, 1> {}; |
| 1580 | |
| 1581 | DEFINE_CALL_INTERFACE_DESCRIPTOR(CallConstruct); |
| 1582 | DEFINE_PLATFORM_CODE_STUB(CallConstruct, PlatformCodeStub); |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame] | 1583 | }; |
| 1584 | |
| 1585 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1586 | enum StringIndexFlags { |
| 1587 | // Accepts smis or heap numbers. |
| 1588 | STRING_INDEX_IS_NUMBER, |
| 1589 | |
| 1590 | // Accepts smis or heap numbers that are valid array indices |
| 1591 | // (ECMA-262 15.4). Invalid indices are reported as being out of |
| 1592 | // range. |
| 1593 | STRING_INDEX_IS_ARRAY_INDEX |
| 1594 | }; |
| 1595 | |
| 1596 | |
| 1597 | // Generates code implementing String.prototype.charCodeAt. |
| 1598 | // |
| 1599 | // Only supports the case when the receiver is a string and the index |
| 1600 | // is a number (smi or heap number) that is a valid index into the |
| 1601 | // string. Additional index constraints are specified by the |
| 1602 | // flags. Otherwise, bails out to the provided labels. |
| 1603 | // |
| 1604 | // Register usage: |object| may be changed to another string in a way |
| 1605 | // that doesn't affect charCodeAt/charAt semantics, |index| is |
| 1606 | // preserved, |scratch| and |result| are clobbered. |
| 1607 | class StringCharCodeAtGenerator { |
| 1608 | public: |
| 1609 | StringCharCodeAtGenerator(Register object, |
| 1610 | Register index, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1611 | Register result, |
| 1612 | Label* receiver_not_string, |
| 1613 | Label* index_not_number, |
| 1614 | Label* index_out_of_range, |
| 1615 | StringIndexFlags index_flags) |
| 1616 | : object_(object), |
| 1617 | index_(index), |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1618 | result_(result), |
| 1619 | receiver_not_string_(receiver_not_string), |
| 1620 | index_not_number_(index_not_number), |
| 1621 | index_out_of_range_(index_out_of_range), |
| 1622 | index_flags_(index_flags) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1623 | DCHECK(!result_.is(object_)); |
| 1624 | DCHECK(!result_.is(index_)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1625 | } |
| 1626 | |
| 1627 | // Generates the fast case code. On the fallthrough path |result| |
| 1628 | // register contains the result. |
| 1629 | void GenerateFast(MacroAssembler* masm); |
| 1630 | |
| 1631 | // Generates the slow case code. Must not be naturally |
| 1632 | // reachable. Expected to be put after a ret instruction (e.g., in |
| 1633 | // deferred code). Always jumps back to the fast case. |
| 1634 | void GenerateSlow(MacroAssembler* masm, |
| 1635 | const RuntimeCallHelper& call_helper); |
| 1636 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1637 | // Skip handling slow case and directly jump to bailout. |
| 1638 | void SkipSlow(MacroAssembler* masm, Label* bailout) { |
| 1639 | masm->bind(&index_not_smi_); |
| 1640 | masm->bind(&call_runtime_); |
| 1641 | masm->jmp(bailout); |
| 1642 | } |
| 1643 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1644 | private: |
| 1645 | Register object_; |
| 1646 | Register index_; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1647 | Register result_; |
| 1648 | |
| 1649 | Label* receiver_not_string_; |
| 1650 | Label* index_not_number_; |
| 1651 | Label* index_out_of_range_; |
| 1652 | |
| 1653 | StringIndexFlags index_flags_; |
| 1654 | |
| 1655 | Label call_runtime_; |
| 1656 | Label index_not_smi_; |
| 1657 | Label got_smi_index_; |
| 1658 | Label exit_; |
| 1659 | |
| 1660 | DISALLOW_COPY_AND_ASSIGN(StringCharCodeAtGenerator); |
| 1661 | }; |
| 1662 | |
| 1663 | |
| 1664 | // Generates code for creating a one-char string from a char code. |
| 1665 | class StringCharFromCodeGenerator { |
| 1666 | public: |
| 1667 | StringCharFromCodeGenerator(Register code, |
| 1668 | Register result) |
| 1669 | : code_(code), |
| 1670 | result_(result) { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1671 | DCHECK(!code_.is(result_)); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1672 | } |
| 1673 | |
| 1674 | // Generates the fast case code. On the fallthrough path |result| |
| 1675 | // register contains the result. |
| 1676 | void GenerateFast(MacroAssembler* masm); |
| 1677 | |
| 1678 | // Generates the slow case code. Must not be naturally |
| 1679 | // reachable. Expected to be put after a ret instruction (e.g., in |
| 1680 | // deferred code). Always jumps back to the fast case. |
| 1681 | void GenerateSlow(MacroAssembler* masm, |
| 1682 | const RuntimeCallHelper& call_helper); |
| 1683 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1684 | // Skip handling slow case and directly jump to bailout. |
| 1685 | void SkipSlow(MacroAssembler* masm, Label* bailout) { |
| 1686 | masm->bind(&slow_case_); |
| 1687 | masm->jmp(bailout); |
| 1688 | } |
| 1689 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1690 | private: |
| 1691 | Register code_; |
| 1692 | Register result_; |
| 1693 | |
| 1694 | Label slow_case_; |
| 1695 | Label exit_; |
| 1696 | |
| 1697 | DISALLOW_COPY_AND_ASSIGN(StringCharFromCodeGenerator); |
| 1698 | }; |
| 1699 | |
| 1700 | |
| 1701 | // Generates code implementing String.prototype.charAt. |
| 1702 | // |
| 1703 | // Only supports the case when the receiver is a string and the index |
| 1704 | // is a number (smi or heap number) that is a valid index into the |
| 1705 | // string. Additional index constraints are specified by the |
| 1706 | // flags. Otherwise, bails out to the provided labels. |
| 1707 | // |
| 1708 | // Register usage: |object| may be changed to another string in a way |
| 1709 | // that doesn't affect charCodeAt/charAt semantics, |index| is |
| 1710 | // preserved, |scratch1|, |scratch2|, and |result| are clobbered. |
| 1711 | class StringCharAtGenerator { |
| 1712 | public: |
| 1713 | StringCharAtGenerator(Register object, |
| 1714 | Register index, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1715 | Register scratch, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1716 | Register result, |
| 1717 | Label* receiver_not_string, |
| 1718 | Label* index_not_number, |
| 1719 | Label* index_out_of_range, |
| 1720 | StringIndexFlags index_flags) |
| 1721 | : char_code_at_generator_(object, |
| 1722 | index, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1723 | scratch, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1724 | receiver_not_string, |
| 1725 | index_not_number, |
| 1726 | index_out_of_range, |
| 1727 | index_flags), |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1728 | char_from_code_generator_(scratch, result) {} |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1729 | |
| 1730 | // Generates the fast case code. On the fallthrough path |result| |
| 1731 | // register contains the result. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1732 | void GenerateFast(MacroAssembler* masm) { |
| 1733 | char_code_at_generator_.GenerateFast(masm); |
| 1734 | char_from_code_generator_.GenerateFast(masm); |
| 1735 | } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1736 | |
| 1737 | // Generates the slow case code. Must not be naturally |
| 1738 | // reachable. Expected to be put after a ret instruction (e.g., in |
| 1739 | // deferred code). Always jumps back to the fast case. |
| 1740 | void GenerateSlow(MacroAssembler* masm, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1741 | const RuntimeCallHelper& call_helper) { |
| 1742 | char_code_at_generator_.GenerateSlow(masm, call_helper); |
| 1743 | char_from_code_generator_.GenerateSlow(masm, call_helper); |
| 1744 | } |
| 1745 | |
| 1746 | // Skip handling slow case and directly jump to bailout. |
| 1747 | void SkipSlow(MacroAssembler* masm, Label* bailout) { |
| 1748 | char_code_at_generator_.SkipSlow(masm, bailout); |
| 1749 | char_from_code_generator_.SkipSlow(masm, bailout); |
| 1750 | } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1751 | |
| 1752 | private: |
| 1753 | StringCharCodeAtGenerator char_code_at_generator_; |
| 1754 | StringCharFromCodeGenerator char_from_code_generator_; |
| 1755 | |
| 1756 | DISALLOW_COPY_AND_ASSIGN(StringCharAtGenerator); |
| 1757 | }; |
| 1758 | |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 1759 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1760 | class LoadDictionaryElementStub : public HydrogenCodeStub { |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 1761 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1762 | explicit LoadDictionaryElementStub(Isolate* isolate) |
| 1763 | : HydrogenCodeStub(isolate) {} |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 1764 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1765 | DEFINE_CALL_INTERFACE_DESCRIPTOR(Load); |
| 1766 | DEFINE_HYDROGEN_CODE_STUB(LoadDictionaryElement, HydrogenCodeStub); |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 1767 | }; |
| 1768 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1769 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1770 | class KeyedLoadGenericStub : public HydrogenCodeStub { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1771 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1772 | explicit KeyedLoadGenericStub(Isolate* isolate) : HydrogenCodeStub(isolate) {} |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1773 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1774 | virtual Code::Kind GetCodeKind() const { return Code::KEYED_LOAD_IC; } |
| 1775 | virtual InlineCacheState GetICState() const { return GENERIC; } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1776 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1777 | DEFINE_CALL_INTERFACE_DESCRIPTOR(Load); |
| 1778 | DEFINE_HYDROGEN_CODE_STUB(KeyedLoadGeneric, HydrogenCodeStub); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1779 | }; |
| 1780 | |
| 1781 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1782 | class LoadICTrampolineStub : public PlatformCodeStub { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1783 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1784 | LoadICTrampolineStub(Isolate* isolate, const LoadICState& state) |
| 1785 | : PlatformCodeStub(isolate) { |
| 1786 | minor_key_ = state.GetExtraICState(); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1787 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1788 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1789 | virtual Code::Kind GetCodeKind() const OVERRIDE { return Code::LOAD_IC; } |
| 1790 | |
| 1791 | virtual InlineCacheState GetICState() const FINAL OVERRIDE { |
| 1792 | return GENERIC; |
| 1793 | } |
| 1794 | |
| 1795 | virtual ExtraICState GetExtraICState() const FINAL OVERRIDE { |
| 1796 | return static_cast<ExtraICState>(minor_key_); |
| 1797 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1798 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1799 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1800 | LoadICState state() const { |
| 1801 | return LoadICState(static_cast<ExtraICState>(minor_key_)); |
| 1802 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1803 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1804 | DEFINE_CALL_INTERFACE_DESCRIPTOR(VectorLoadICTrampoline); |
| 1805 | DEFINE_PLATFORM_CODE_STUB(LoadICTrampoline, PlatformCodeStub); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1806 | }; |
| 1807 | |
| 1808 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1809 | class KeyedLoadICTrampolineStub : public LoadICTrampolineStub { |
| 1810 | public: |
| 1811 | explicit KeyedLoadICTrampolineStub(Isolate* isolate) |
| 1812 | : LoadICTrampolineStub(isolate, LoadICState(0)) {} |
| 1813 | |
| 1814 | virtual Code::Kind GetCodeKind() const OVERRIDE { |
| 1815 | return Code::KEYED_LOAD_IC; |
| 1816 | } |
| 1817 | |
| 1818 | DEFINE_PLATFORM_CODE_STUB(KeyedLoadICTrampoline, LoadICTrampolineStub); |
| 1819 | }; |
| 1820 | |
| 1821 | |
| 1822 | class MegamorphicLoadStub : public HydrogenCodeStub { |
| 1823 | public: |
| 1824 | MegamorphicLoadStub(Isolate* isolate, const LoadICState& state) |
| 1825 | : HydrogenCodeStub(isolate) { |
| 1826 | set_sub_minor_key(state.GetExtraICState()); |
| 1827 | } |
| 1828 | |
| 1829 | virtual Code::Kind GetCodeKind() const OVERRIDE { return Code::LOAD_IC; } |
| 1830 | |
| 1831 | virtual InlineCacheState GetICState() const FINAL OVERRIDE { |
| 1832 | return MEGAMORPHIC; |
| 1833 | } |
| 1834 | |
| 1835 | virtual ExtraICState GetExtraICState() const FINAL OVERRIDE { |
| 1836 | return static_cast<ExtraICState>(sub_minor_key()); |
| 1837 | } |
| 1838 | |
| 1839 | DEFINE_CALL_INTERFACE_DESCRIPTOR(Load); |
| 1840 | DEFINE_HYDROGEN_CODE_STUB(MegamorphicLoad, HydrogenCodeStub); |
| 1841 | }; |
| 1842 | |
| 1843 | |
| 1844 | class VectorLoadStub : public HydrogenCodeStub { |
| 1845 | public: |
| 1846 | explicit VectorLoadStub(Isolate* isolate, const LoadICState& state) |
| 1847 | : HydrogenCodeStub(isolate) { |
| 1848 | set_sub_minor_key(state.GetExtraICState()); |
| 1849 | } |
| 1850 | |
| 1851 | virtual Code::Kind GetCodeKind() const OVERRIDE { return Code::LOAD_IC; } |
| 1852 | |
| 1853 | virtual InlineCacheState GetICState() const FINAL OVERRIDE { |
| 1854 | return GENERIC; |
| 1855 | } |
| 1856 | |
| 1857 | virtual ExtraICState GetExtraICState() const FINAL OVERRIDE { |
| 1858 | return static_cast<ExtraICState>(sub_minor_key()); |
| 1859 | } |
| 1860 | |
| 1861 | private: |
| 1862 | LoadICState state() const { return LoadICState(GetExtraICState()); } |
| 1863 | |
| 1864 | DEFINE_CALL_INTERFACE_DESCRIPTOR(VectorLoadIC); |
| 1865 | DEFINE_HYDROGEN_CODE_STUB(VectorLoad, HydrogenCodeStub); |
| 1866 | }; |
| 1867 | |
| 1868 | |
| 1869 | class VectorKeyedLoadStub : public VectorLoadStub { |
| 1870 | public: |
| 1871 | explicit VectorKeyedLoadStub(Isolate* isolate) |
| 1872 | : VectorLoadStub(isolate, LoadICState(0)) {} |
| 1873 | |
| 1874 | virtual Code::Kind GetCodeKind() const OVERRIDE { |
| 1875 | return Code::KEYED_LOAD_IC; |
| 1876 | } |
| 1877 | |
| 1878 | DEFINE_CALL_INTERFACE_DESCRIPTOR(VectorLoadIC); |
| 1879 | DEFINE_HYDROGEN_CODE_STUB(VectorKeyedLoad, VectorLoadStub); |
| 1880 | }; |
| 1881 | |
| 1882 | |
| 1883 | class DoubleToIStub : public PlatformCodeStub { |
| 1884 | public: |
| 1885 | DoubleToIStub(Isolate* isolate, Register source, Register destination, |
| 1886 | int offset, bool is_truncating, bool skip_fastpath = false) |
| 1887 | : PlatformCodeStub(isolate) { |
| 1888 | minor_key_ = SourceRegisterBits::encode(source.code()) | |
| 1889 | DestinationRegisterBits::encode(destination.code()) | |
| 1890 | OffsetBits::encode(offset) | |
| 1891 | IsTruncatingBits::encode(is_truncating) | |
| 1892 | SkipFastPathBits::encode(skip_fastpath) | |
| 1893 | SSE3Bits::encode(CpuFeatures::IsSupported(SSE3) ? 1 : 0); |
| 1894 | } |
| 1895 | |
| 1896 | virtual bool SometimesSetsUpAFrame() { return false; } |
| 1897 | |
| 1898 | private: |
| 1899 | Register source() const { |
| 1900 | return Register::from_code(SourceRegisterBits::decode(minor_key_)); |
| 1901 | } |
| 1902 | Register destination() const { |
| 1903 | return Register::from_code(DestinationRegisterBits::decode(minor_key_)); |
| 1904 | } |
| 1905 | bool is_truncating() const { return IsTruncatingBits::decode(minor_key_); } |
| 1906 | bool skip_fastpath() const { return SkipFastPathBits::decode(minor_key_); } |
| 1907 | int offset() const { return OffsetBits::decode(minor_key_); } |
| 1908 | |
| 1909 | static const int kBitsPerRegisterNumber = 6; |
| 1910 | STATIC_ASSERT((1L << kBitsPerRegisterNumber) >= Register::kNumRegisters); |
| 1911 | class SourceRegisterBits: |
| 1912 | public BitField<int, 0, kBitsPerRegisterNumber> {}; // NOLINT |
| 1913 | class DestinationRegisterBits: |
| 1914 | public BitField<int, kBitsPerRegisterNumber, |
| 1915 | kBitsPerRegisterNumber> {}; // NOLINT |
| 1916 | class IsTruncatingBits: |
| 1917 | public BitField<bool, 2 * kBitsPerRegisterNumber, 1> {}; // NOLINT |
| 1918 | class OffsetBits: |
| 1919 | public BitField<int, 2 * kBitsPerRegisterNumber + 1, 3> {}; // NOLINT |
| 1920 | class SkipFastPathBits: |
| 1921 | public BitField<int, 2 * kBitsPerRegisterNumber + 4, 1> {}; // NOLINT |
| 1922 | class SSE3Bits: |
| 1923 | public BitField<int, 2 * kBitsPerRegisterNumber + 5, 1> {}; // NOLINT |
| 1924 | |
| 1925 | DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR(); |
| 1926 | DEFINE_PLATFORM_CODE_STUB(DoubleToI, PlatformCodeStub); |
| 1927 | }; |
| 1928 | |
| 1929 | |
| 1930 | class LoadFastElementStub : public HydrogenCodeStub { |
| 1931 | public: |
| 1932 | LoadFastElementStub(Isolate* isolate, bool is_js_array, |
| 1933 | ElementsKind elements_kind) |
| 1934 | : HydrogenCodeStub(isolate) { |
| 1935 | set_sub_minor_key(ElementsKindBits::encode(elements_kind) | |
| 1936 | IsJSArrayBits::encode(is_js_array)); |
| 1937 | } |
| 1938 | |
| 1939 | bool is_js_array() const { return IsJSArrayBits::decode(sub_minor_key()); } |
| 1940 | |
| 1941 | ElementsKind elements_kind() const { |
| 1942 | return ElementsKindBits::decode(sub_minor_key()); |
| 1943 | } |
| 1944 | |
| 1945 | private: |
| 1946 | class ElementsKindBits: public BitField<ElementsKind, 0, 8> {}; |
| 1947 | class IsJSArrayBits: public BitField<bool, 8, 1> {}; |
| 1948 | |
| 1949 | DEFINE_CALL_INTERFACE_DESCRIPTOR(Load); |
| 1950 | DEFINE_HYDROGEN_CODE_STUB(LoadFastElement, HydrogenCodeStub); |
| 1951 | }; |
| 1952 | |
| 1953 | |
| 1954 | class StoreFastElementStub : public HydrogenCodeStub { |
| 1955 | public: |
| 1956 | StoreFastElementStub(Isolate* isolate, bool is_js_array, |
| 1957 | ElementsKind elements_kind, KeyedAccessStoreMode mode) |
| 1958 | : HydrogenCodeStub(isolate) { |
| 1959 | set_sub_minor_key(ElementsKindBits::encode(elements_kind) | |
| 1960 | IsJSArrayBits::encode(is_js_array) | |
| 1961 | StoreModeBits::encode(mode)); |
| 1962 | } |
| 1963 | |
| 1964 | bool is_js_array() const { return IsJSArrayBits::decode(sub_minor_key()); } |
| 1965 | |
| 1966 | ElementsKind elements_kind() const { |
| 1967 | return ElementsKindBits::decode(sub_minor_key()); |
| 1968 | } |
| 1969 | |
| 1970 | KeyedAccessStoreMode store_mode() const { |
| 1971 | return StoreModeBits::decode(sub_minor_key()); |
| 1972 | } |
| 1973 | |
| 1974 | private: |
| 1975 | class ElementsKindBits: public BitField<ElementsKind, 0, 8> {}; |
| 1976 | class StoreModeBits: public BitField<KeyedAccessStoreMode, 8, 4> {}; |
| 1977 | class IsJSArrayBits: public BitField<bool, 12, 1> {}; |
| 1978 | |
| 1979 | DEFINE_CALL_INTERFACE_DESCRIPTOR(Store); |
| 1980 | DEFINE_HYDROGEN_CODE_STUB(StoreFastElement, HydrogenCodeStub); |
| 1981 | }; |
| 1982 | |
| 1983 | |
| 1984 | class TransitionElementsKindStub : public HydrogenCodeStub { |
| 1985 | public: |
| 1986 | TransitionElementsKindStub(Isolate* isolate, |
| 1987 | ElementsKind from_kind, |
| 1988 | ElementsKind to_kind, |
| 1989 | bool is_js_array) : HydrogenCodeStub(isolate) { |
| 1990 | set_sub_minor_key(FromKindBits::encode(from_kind) | |
| 1991 | ToKindBits::encode(to_kind) | |
| 1992 | IsJSArrayBits::encode(is_js_array)); |
| 1993 | } |
| 1994 | |
| 1995 | ElementsKind from_kind() const { |
| 1996 | return FromKindBits::decode(sub_minor_key()); |
| 1997 | } |
| 1998 | |
| 1999 | ElementsKind to_kind() const { return ToKindBits::decode(sub_minor_key()); } |
| 2000 | |
| 2001 | bool is_js_array() const { return IsJSArrayBits::decode(sub_minor_key()); } |
| 2002 | |
| 2003 | private: |
| 2004 | class FromKindBits: public BitField<ElementsKind, 8, 8> {}; |
| 2005 | class ToKindBits: public BitField<ElementsKind, 0, 8> {}; |
| 2006 | class IsJSArrayBits: public BitField<bool, 16, 1> {}; |
| 2007 | |
| 2008 | DEFINE_CALL_INTERFACE_DESCRIPTOR(TransitionElementsKind); |
| 2009 | DEFINE_HYDROGEN_CODE_STUB(TransitionElementsKind, HydrogenCodeStub); |
| 2010 | }; |
| 2011 | |
| 2012 | |
| 2013 | class ArrayConstructorStubBase : public HydrogenCodeStub { |
| 2014 | public: |
| 2015 | ArrayConstructorStubBase(Isolate* isolate, |
| 2016 | ElementsKind kind, |
| 2017 | AllocationSiteOverrideMode override_mode) |
| 2018 | : HydrogenCodeStub(isolate) { |
| 2019 | // It only makes sense to override local allocation site behavior |
| 2020 | // if there is a difference between the global allocation site policy |
| 2021 | // for an ElementsKind and the desired usage of the stub. |
| 2022 | DCHECK(override_mode != DISABLE_ALLOCATION_SITES || |
| 2023 | AllocationSite::GetMode(kind) == TRACK_ALLOCATION_SITE); |
| 2024 | set_sub_minor_key(ElementsKindBits::encode(kind) | |
| 2025 | AllocationSiteOverrideModeBits::encode(override_mode)); |
| 2026 | } |
| 2027 | |
| 2028 | ElementsKind elements_kind() const { |
| 2029 | return ElementsKindBits::decode(sub_minor_key()); |
| 2030 | } |
| 2031 | |
| 2032 | AllocationSiteOverrideMode override_mode() const { |
| 2033 | return AllocationSiteOverrideModeBits::decode(sub_minor_key()); |
| 2034 | } |
| 2035 | |
| 2036 | static void GenerateStubsAheadOfTime(Isolate* isolate); |
| 2037 | |
| 2038 | // Parameters accessed via CodeStubGraphBuilder::GetParameter() |
| 2039 | static const int kConstructor = 0; |
| 2040 | static const int kAllocationSite = 1; |
| 2041 | |
| 2042 | protected: |
| 2043 | OStream& BasePrintName(OStream& os, const char* name) const; // NOLINT |
| 2044 | |
| 2045 | private: |
| 2046 | // Ensure data fits within available bits. |
| 2047 | STATIC_ASSERT(LAST_ALLOCATION_SITE_OVERRIDE_MODE == 1); |
| 2048 | |
| 2049 | class ElementsKindBits: public BitField<ElementsKind, 0, 8> {}; |
| 2050 | class AllocationSiteOverrideModeBits: public |
| 2051 | BitField<AllocationSiteOverrideMode, 8, 1> {}; // NOLINT |
| 2052 | |
| 2053 | DEFINE_CODE_STUB_BASE(ArrayConstructorStubBase, HydrogenCodeStub); |
| 2054 | }; |
| 2055 | |
| 2056 | |
| 2057 | class ArrayNoArgumentConstructorStub : public ArrayConstructorStubBase { |
| 2058 | public: |
| 2059 | ArrayNoArgumentConstructorStub( |
| 2060 | Isolate* isolate, |
| 2061 | ElementsKind kind, |
| 2062 | AllocationSiteOverrideMode override_mode = DONT_OVERRIDE) |
| 2063 | : ArrayConstructorStubBase(isolate, kind, override_mode) { |
| 2064 | } |
| 2065 | |
| 2066 | private: |
| 2067 | virtual void PrintName(OStream& os) const OVERRIDE { // NOLINT |
| 2068 | BasePrintName(os, "ArrayNoArgumentConstructorStub"); |
| 2069 | } |
| 2070 | |
| 2071 | DEFINE_CALL_INTERFACE_DESCRIPTOR(ArrayConstructorConstantArgCount); |
| 2072 | DEFINE_HYDROGEN_CODE_STUB(ArrayNoArgumentConstructor, |
| 2073 | ArrayConstructorStubBase); |
| 2074 | }; |
| 2075 | |
| 2076 | |
| 2077 | class ArraySingleArgumentConstructorStub : public ArrayConstructorStubBase { |
| 2078 | public: |
| 2079 | ArraySingleArgumentConstructorStub( |
| 2080 | Isolate* isolate, |
| 2081 | ElementsKind kind, |
| 2082 | AllocationSiteOverrideMode override_mode = DONT_OVERRIDE) |
| 2083 | : ArrayConstructorStubBase(isolate, kind, override_mode) { |
| 2084 | } |
| 2085 | |
| 2086 | private: |
| 2087 | virtual void PrintName(OStream& os) const { // NOLINT |
| 2088 | BasePrintName(os, "ArraySingleArgumentConstructorStub"); |
| 2089 | } |
| 2090 | |
| 2091 | DEFINE_CALL_INTERFACE_DESCRIPTOR(ArrayConstructor); |
| 2092 | DEFINE_HYDROGEN_CODE_STUB(ArraySingleArgumentConstructor, |
| 2093 | ArrayConstructorStubBase); |
| 2094 | }; |
| 2095 | |
| 2096 | |
| 2097 | class ArrayNArgumentsConstructorStub : public ArrayConstructorStubBase { |
| 2098 | public: |
| 2099 | ArrayNArgumentsConstructorStub( |
| 2100 | Isolate* isolate, |
| 2101 | ElementsKind kind, |
| 2102 | AllocationSiteOverrideMode override_mode = DONT_OVERRIDE) |
| 2103 | : ArrayConstructorStubBase(isolate, kind, override_mode) { |
| 2104 | } |
| 2105 | |
| 2106 | private: |
| 2107 | virtual void PrintName(OStream& os) const { // NOLINT |
| 2108 | BasePrintName(os, "ArrayNArgumentsConstructorStub"); |
| 2109 | } |
| 2110 | |
| 2111 | DEFINE_CALL_INTERFACE_DESCRIPTOR(ArrayConstructor); |
| 2112 | DEFINE_HYDROGEN_CODE_STUB(ArrayNArgumentsConstructor, |
| 2113 | ArrayConstructorStubBase); |
| 2114 | }; |
| 2115 | |
| 2116 | |
| 2117 | class InternalArrayConstructorStubBase : public HydrogenCodeStub { |
| 2118 | public: |
| 2119 | InternalArrayConstructorStubBase(Isolate* isolate, ElementsKind kind) |
| 2120 | : HydrogenCodeStub(isolate) { |
| 2121 | set_sub_minor_key(ElementsKindBits::encode(kind)); |
| 2122 | } |
| 2123 | |
| 2124 | static void GenerateStubsAheadOfTime(Isolate* isolate); |
| 2125 | |
| 2126 | // Parameters accessed via CodeStubGraphBuilder::GetParameter() |
| 2127 | static const int kConstructor = 0; |
| 2128 | |
| 2129 | ElementsKind elements_kind() const { |
| 2130 | return ElementsKindBits::decode(sub_minor_key()); |
| 2131 | } |
| 2132 | |
| 2133 | private: |
| 2134 | class ElementsKindBits : public BitField<ElementsKind, 0, 8> {}; |
| 2135 | |
| 2136 | DEFINE_CODE_STUB_BASE(InternalArrayConstructorStubBase, HydrogenCodeStub); |
| 2137 | }; |
| 2138 | |
| 2139 | |
| 2140 | class InternalArrayNoArgumentConstructorStub : public |
| 2141 | InternalArrayConstructorStubBase { |
| 2142 | public: |
| 2143 | InternalArrayNoArgumentConstructorStub(Isolate* isolate, |
| 2144 | ElementsKind kind) |
| 2145 | : InternalArrayConstructorStubBase(isolate, kind) { } |
| 2146 | |
| 2147 | DEFINE_CALL_INTERFACE_DESCRIPTOR(InternalArrayConstructorConstantArgCount); |
| 2148 | DEFINE_HYDROGEN_CODE_STUB(InternalArrayNoArgumentConstructor, |
| 2149 | InternalArrayConstructorStubBase); |
| 2150 | }; |
| 2151 | |
| 2152 | |
| 2153 | class InternalArraySingleArgumentConstructorStub : public |
| 2154 | InternalArrayConstructorStubBase { |
| 2155 | public: |
| 2156 | InternalArraySingleArgumentConstructorStub(Isolate* isolate, |
| 2157 | ElementsKind kind) |
| 2158 | : InternalArrayConstructorStubBase(isolate, kind) { } |
| 2159 | |
| 2160 | DEFINE_CALL_INTERFACE_DESCRIPTOR(InternalArrayConstructor); |
| 2161 | DEFINE_HYDROGEN_CODE_STUB(InternalArraySingleArgumentConstructor, |
| 2162 | InternalArrayConstructorStubBase); |
| 2163 | }; |
| 2164 | |
| 2165 | |
| 2166 | class InternalArrayNArgumentsConstructorStub : public |
| 2167 | InternalArrayConstructorStubBase { |
| 2168 | public: |
| 2169 | InternalArrayNArgumentsConstructorStub(Isolate* isolate, ElementsKind kind) |
| 2170 | : InternalArrayConstructorStubBase(isolate, kind) { } |
| 2171 | |
| 2172 | DEFINE_CALL_INTERFACE_DESCRIPTOR(InternalArrayConstructor); |
| 2173 | DEFINE_HYDROGEN_CODE_STUB(InternalArrayNArgumentsConstructor, |
| 2174 | InternalArrayConstructorStubBase); |
| 2175 | }; |
| 2176 | |
| 2177 | |
| 2178 | class StoreElementStub : public PlatformCodeStub { |
| 2179 | public: |
| 2180 | StoreElementStub(Isolate* isolate, ElementsKind elements_kind) |
| 2181 | : PlatformCodeStub(isolate) { |
| 2182 | minor_key_ = ElementsKindBits::encode(elements_kind); |
| 2183 | } |
| 2184 | |
| 2185 | private: |
| 2186 | ElementsKind elements_kind() const { |
| 2187 | return ElementsKindBits::decode(minor_key_); |
| 2188 | } |
| 2189 | |
| 2190 | class ElementsKindBits : public BitField<ElementsKind, 0, 8> {}; |
| 2191 | |
| 2192 | DEFINE_CALL_INTERFACE_DESCRIPTOR(Store); |
| 2193 | DEFINE_PLATFORM_CODE_STUB(StoreElement, PlatformCodeStub); |
| 2194 | }; |
| 2195 | |
| 2196 | |
| 2197 | class ToBooleanStub: public HydrogenCodeStub { |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2198 | public: |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2199 | enum Type { |
| 2200 | UNDEFINED, |
| 2201 | BOOLEAN, |
| 2202 | NULL_TYPE, |
| 2203 | SMI, |
| 2204 | SPEC_OBJECT, |
| 2205 | STRING, |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2206 | SYMBOL, |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2207 | HEAP_NUMBER, |
| 2208 | NUMBER_OF_TYPES |
| 2209 | }; |
| 2210 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2211 | enum ResultMode { |
| 2212 | RESULT_AS_SMI, // For Smi(1) on truthy value, Smi(0) otherwise. |
| 2213 | RESULT_AS_ODDBALL, // For {true} on truthy value, {false} otherwise. |
| 2214 | RESULT_AS_INVERSE_ODDBALL // For {false} on truthy value, {true} otherwise. |
| 2215 | }; |
| 2216 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2217 | // At most 8 different types can be distinguished, because the Code object |
| 2218 | // only has room for a single byte to hold a set of these types. :-P |
| 2219 | STATIC_ASSERT(NUMBER_OF_TYPES <= 8); |
| 2220 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2221 | class Types : public EnumSet<Type, byte> { |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2222 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2223 | Types() : EnumSet<Type, byte>(0) {} |
| 2224 | explicit Types(byte bits) : EnumSet<Type, byte>(bits) {} |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2225 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2226 | byte ToByte() const { return ToIntegral(); } |
| 2227 | bool UpdateStatus(Handle<Object> object); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2228 | bool NeedsMap() const; |
| 2229 | bool CanBeUndetectable() const; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2230 | bool IsGeneric() const { return ToIntegral() == Generic().ToIntegral(); } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2231 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2232 | static Types Generic() { return Types((1 << NUMBER_OF_TYPES) - 1); } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2233 | }; |
| 2234 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2235 | ToBooleanStub(Isolate* isolate, ResultMode mode, Types types = Types()) |
| 2236 | : HydrogenCodeStub(isolate) { |
| 2237 | set_sub_minor_key(TypesBits::encode(types.ToByte()) | |
| 2238 | ResultModeBits::encode(mode)); |
| 2239 | } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2240 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2241 | ToBooleanStub(Isolate* isolate, ExtraICState state) |
| 2242 | : HydrogenCodeStub(isolate) { |
| 2243 | set_sub_minor_key(TypesBits::encode(static_cast<byte>(state)) | |
| 2244 | ResultModeBits::encode(RESULT_AS_SMI)); |
| 2245 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2246 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2247 | bool UpdateStatus(Handle<Object> object); |
| 2248 | Types types() const { return Types(TypesBits::decode(sub_minor_key())); } |
| 2249 | ResultMode mode() const { return ResultModeBits::decode(sub_minor_key()); } |
| 2250 | |
| 2251 | virtual Code::Kind GetCodeKind() const { return Code::TO_BOOLEAN_IC; } |
| 2252 | virtual void PrintState(OStream& os) const OVERRIDE; // NOLINT |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 2253 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2254 | virtual bool SometimesSetsUpAFrame() { return false; } |
| 2255 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2256 | static Handle<Code> GetUninitialized(Isolate* isolate) { |
| 2257 | return ToBooleanStub(isolate, UNINITIALIZED).GetCode(); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2258 | } |
| 2259 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2260 | virtual ExtraICState GetExtraICState() const { return types().ToIntegral(); } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 2261 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2262 | virtual InlineCacheState GetICState() const { |
| 2263 | if (types().IsEmpty()) { |
| 2264 | return ::v8::internal::UNINITIALIZED; |
| 2265 | } else { |
| 2266 | return MONOMORPHIC; |
| 2267 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2268 | } |
| 2269 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2270 | private: |
| 2271 | ToBooleanStub(Isolate* isolate, InitializationState init_state) |
| 2272 | : HydrogenCodeStub(isolate, init_state) { |
| 2273 | set_sub_minor_key(ResultModeBits::encode(RESULT_AS_SMI)); |
| 2274 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2275 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2276 | class TypesBits : public BitField<byte, 0, NUMBER_OF_TYPES> {}; |
| 2277 | class ResultModeBits : public BitField<ResultMode, NUMBER_OF_TYPES, 2> {}; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2278 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2279 | DEFINE_CALL_INTERFACE_DESCRIPTOR(ToBoolean); |
| 2280 | DEFINE_HYDROGEN_CODE_STUB(ToBoolean, HydrogenCodeStub); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2281 | }; |
| 2282 | |
| 2283 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2284 | OStream& operator<<(OStream& os, const ToBooleanStub::Types& t); |
| 2285 | |
| 2286 | |
| 2287 | class ElementsTransitionAndStoreStub : public HydrogenCodeStub { |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2288 | public: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2289 | ElementsTransitionAndStoreStub(Isolate* isolate, ElementsKind from_kind, |
| 2290 | ElementsKind to_kind, bool is_jsarray, |
| 2291 | KeyedAccessStoreMode store_mode) |
| 2292 | : HydrogenCodeStub(isolate) { |
| 2293 | set_sub_minor_key(FromBits::encode(from_kind) | ToBits::encode(to_kind) | |
| 2294 | IsJSArrayBits::encode(is_jsarray) | |
| 2295 | StoreModeBits::encode(store_mode)); |
| 2296 | } |
| 2297 | |
| 2298 | ElementsKind from_kind() const { return FromBits::decode(sub_minor_key()); } |
| 2299 | ElementsKind to_kind() const { return ToBits::decode(sub_minor_key()); } |
| 2300 | bool is_jsarray() const { return IsJSArrayBits::decode(sub_minor_key()); } |
| 2301 | KeyedAccessStoreMode store_mode() const { |
| 2302 | return StoreModeBits::decode(sub_minor_key()); |
| 2303 | } |
| 2304 | |
| 2305 | // Parameters accessed via CodeStubGraphBuilder::GetParameter() |
| 2306 | enum ParameterIndices { |
| 2307 | kValueIndex, |
| 2308 | kMapIndex, |
| 2309 | kKeyIndex, |
| 2310 | kObjectIndex, |
| 2311 | kParameterCount |
| 2312 | }; |
| 2313 | |
| 2314 | static const Register ValueRegister() { |
| 2315 | return ElementTransitionAndStoreDescriptor::ValueRegister(); |
| 2316 | } |
| 2317 | static const Register MapRegister() { |
| 2318 | return ElementTransitionAndStoreDescriptor::MapRegister(); |
| 2319 | } |
| 2320 | static const Register KeyRegister() { |
| 2321 | return ElementTransitionAndStoreDescriptor::NameRegister(); |
| 2322 | } |
| 2323 | static const Register ObjectRegister() { |
| 2324 | return ElementTransitionAndStoreDescriptor::ReceiverRegister(); |
| 2325 | } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2326 | |
| 2327 | private: |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2328 | class FromBits : public BitField<ElementsKind, 0, 8> {}; |
| 2329 | class ToBits : public BitField<ElementsKind, 8, 8> {}; |
| 2330 | class IsJSArrayBits : public BitField<bool, 16, 1> {}; |
| 2331 | class StoreModeBits : public BitField<KeyedAccessStoreMode, 17, 4> {}; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2332 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2333 | DEFINE_CALL_INTERFACE_DESCRIPTOR(ElementTransitionAndStore); |
| 2334 | DEFINE_HYDROGEN_CODE_STUB(ElementsTransitionAndStore, HydrogenCodeStub); |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 2335 | }; |
| 2336 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 2337 | |
| 2338 | class StoreArrayLiteralElementStub : public PlatformCodeStub { |
| 2339 | public: |
| 2340 | explicit StoreArrayLiteralElementStub(Isolate* isolate) |
| 2341 | : PlatformCodeStub(isolate) { } |
| 2342 | |
| 2343 | DEFINE_CALL_INTERFACE_DESCRIPTOR(StoreArrayLiteralElement); |
| 2344 | DEFINE_PLATFORM_CODE_STUB(StoreArrayLiteralElement, PlatformCodeStub); |
| 2345 | }; |
| 2346 | |
| 2347 | |
| 2348 | class StubFailureTrampolineStub : public PlatformCodeStub { |
| 2349 | public: |
| 2350 | StubFailureTrampolineStub(Isolate* isolate, StubFunctionMode function_mode) |
| 2351 | : PlatformCodeStub(isolate) { |
| 2352 | minor_key_ = FunctionModeField::encode(function_mode); |
| 2353 | } |
| 2354 | |
| 2355 | static void GenerateAheadOfTime(Isolate* isolate); |
| 2356 | |
| 2357 | private: |
| 2358 | StubFunctionMode function_mode() const { |
| 2359 | return FunctionModeField::decode(minor_key_); |
| 2360 | } |
| 2361 | |
| 2362 | class FunctionModeField : public BitField<StubFunctionMode, 0, 1> {}; |
| 2363 | |
| 2364 | DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR(); |
| 2365 | DEFINE_PLATFORM_CODE_STUB(StubFailureTrampoline, PlatformCodeStub); |
| 2366 | }; |
| 2367 | |
| 2368 | |
| 2369 | class ProfileEntryHookStub : public PlatformCodeStub { |
| 2370 | public: |
| 2371 | explicit ProfileEntryHookStub(Isolate* isolate) : PlatformCodeStub(isolate) {} |
| 2372 | |
| 2373 | // The profile entry hook function is not allowed to cause a GC. |
| 2374 | virtual bool SometimesSetsUpAFrame() { return false; } |
| 2375 | |
| 2376 | // Generates a call to the entry hook if it's enabled. |
| 2377 | static void MaybeCallEntryHook(MacroAssembler* masm); |
| 2378 | |
| 2379 | private: |
| 2380 | static void EntryHookTrampoline(intptr_t function, |
| 2381 | intptr_t stack_pointer, |
| 2382 | Isolate* isolate); |
| 2383 | |
| 2384 | // ProfileEntryHookStub is called at the start of a function, so it has the |
| 2385 | // same register set. |
| 2386 | DEFINE_CALL_INTERFACE_DESCRIPTOR(CallFunction) |
| 2387 | DEFINE_PLATFORM_CODE_STUB(ProfileEntryHook, PlatformCodeStub); |
| 2388 | }; |
| 2389 | |
| 2390 | |
| 2391 | class StoreBufferOverflowStub : public PlatformCodeStub { |
| 2392 | public: |
| 2393 | StoreBufferOverflowStub(Isolate* isolate, SaveFPRegsMode save_fp) |
| 2394 | : PlatformCodeStub(isolate) { |
| 2395 | minor_key_ = SaveDoublesBits::encode(save_fp == kSaveFPRegs); |
| 2396 | } |
| 2397 | |
| 2398 | static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate); |
| 2399 | virtual bool SometimesSetsUpAFrame() { return false; } |
| 2400 | |
| 2401 | private: |
| 2402 | bool save_doubles() const { return SaveDoublesBits::decode(minor_key_); } |
| 2403 | |
| 2404 | class SaveDoublesBits : public BitField<bool, 0, 1> {}; |
| 2405 | |
| 2406 | DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR(); |
| 2407 | DEFINE_PLATFORM_CODE_STUB(StoreBufferOverflow, PlatformCodeStub); |
| 2408 | }; |
| 2409 | |
| 2410 | |
| 2411 | class SubStringStub : public PlatformCodeStub { |
| 2412 | public: |
| 2413 | explicit SubStringStub(Isolate* isolate) : PlatformCodeStub(isolate) {} |
| 2414 | |
| 2415 | DEFINE_CALL_INTERFACE_DESCRIPTOR(ContextOnly); |
| 2416 | DEFINE_PLATFORM_CODE_STUB(SubString, PlatformCodeStub); |
| 2417 | }; |
| 2418 | |
| 2419 | |
| 2420 | class StringCompareStub : public PlatformCodeStub { |
| 2421 | public: |
| 2422 | explicit StringCompareStub(Isolate* isolate) : PlatformCodeStub(isolate) {} |
| 2423 | |
| 2424 | DEFINE_CALL_INTERFACE_DESCRIPTOR(ContextOnly); |
| 2425 | DEFINE_PLATFORM_CODE_STUB(StringCompare, PlatformCodeStub); |
| 2426 | }; |
| 2427 | |
| 2428 | |
| 2429 | #undef DEFINE_CALL_INTERFACE_DESCRIPTOR |
| 2430 | #undef DEFINE_PLATFORM_CODE_STUB |
| 2431 | #undef DEFINE_HANDLER_CODE_STUB |
| 2432 | #undef DEFINE_HYDROGEN_CODE_STUB |
| 2433 | #undef DEFINE_CODE_STUB |
| 2434 | #undef DEFINE_CODE_STUB_BASE |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2435 | } } // namespace v8::internal |
| 2436 | |
| 2437 | #endif // V8_CODE_STUBS_H_ |