Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include "v8.h" |
| 29 | |
| 30 | #include "bootstrapper.h" |
| 31 | #include "code-stubs.h" |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 32 | #include "stub-cache.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 33 | #include "factory.h" |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 34 | #include "gdb-jit.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 35 | #include "macro-assembler.h" |
| 36 | |
| 37 | namespace v8 { |
| 38 | namespace internal { |
| 39 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 40 | bool CodeStub::FindCodeInCache(Code** code_out) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 41 | Heap* heap = Isolate::Current()->heap(); |
| 42 | int index = heap->code_stubs()->FindEntry(GetKey()); |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame^] | 43 | if (index != UnseededNumberDictionary::kNotFound) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 44 | *code_out = Code::cast(heap->code_stubs()->ValueAt(index)); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 45 | return true; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 46 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 47 | return false; |
| 48 | } |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 49 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 50 | |
| 51 | void CodeStub::GenerateCode(MacroAssembler* masm) { |
| 52 | // Update the static counter each time a new code stub is generated. |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 53 | masm->isolate()->counters()->code_stubs()->Increment(); |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 54 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 55 | // Nested stubs are not allowed for leaves. |
| 56 | AllowStubCallsScope allow_scope(masm, false); |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 57 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 58 | // Generate the code for the stub. |
| 59 | masm->set_generating_stub(true); |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 60 | NoCurrentFrameScope scope(masm); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 61 | Generate(masm); |
| 62 | } |
| 63 | |
| 64 | |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 65 | SmartArrayPointer<const char> CodeStub::GetName() { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 66 | char buffer[100]; |
| 67 | NoAllocationStringAllocator allocator(buffer, |
| 68 | static_cast<unsigned>(sizeof(buffer))); |
| 69 | StringStream stream(&allocator); |
| 70 | PrintName(&stream); |
| 71 | return stream.ToCString(); |
| 72 | } |
| 73 | |
| 74 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 75 | void CodeStub::RecordCodeGeneration(Code* code, MacroAssembler* masm) { |
| 76 | code->set_major_key(MajorKey()); |
| 77 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 78 | Isolate* isolate = masm->isolate(); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 79 | SmartArrayPointer<const char> name = GetName(); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 80 | PROFILE(isolate, CodeCreateEvent(Logger::STUB_TAG, code, *name)); |
| 81 | GDBJIT(AddCode(GDBJITInterface::STUB, *name, code)); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 82 | Counters* counters = isolate->counters(); |
| 83 | counters->total_stubs_code_size()->Increment(code->instruction_size()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 84 | |
| 85 | #ifdef ENABLE_DISASSEMBLER |
| 86 | if (FLAG_print_code_stubs) { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 87 | code->Disassemble(*name); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 88 | PrintF("\n"); |
| 89 | } |
| 90 | #endif |
| 91 | } |
| 92 | |
| 93 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 94 | int CodeStub::GetCodeKind() { |
| 95 | return Code::STUB; |
| 96 | } |
| 97 | |
| 98 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 99 | Handle<Code> CodeStub::GetCode() { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 100 | Isolate* isolate = Isolate::Current(); |
| 101 | Factory* factory = isolate->factory(); |
| 102 | Heap* heap = isolate->heap(); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 103 | Code* code; |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame^] | 104 | if (UseSpecialCache() |
| 105 | ? FindCodeInSpecialCache(&code) |
| 106 | : FindCodeInCache(&code)) { |
| 107 | ASSERT(IsPregenerated() == code->is_pregenerated()); |
| 108 | return Handle<Code>(code); |
| 109 | } |
| 110 | |
| 111 | { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 112 | HandleScope scope(isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 113 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 114 | // Generate the new code. |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 115 | MacroAssembler masm(isolate, NULL, 256); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 116 | GenerateCode(&masm); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 117 | |
| 118 | // Create the code object. |
| 119 | CodeDesc desc; |
| 120 | masm.GetCode(&desc); |
| 121 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 122 | // Copy the generated code into a heap object. |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 123 | Code::Flags flags = Code::ComputeFlags( |
| 124 | static_cast<Code::Kind>(GetCodeKind()), |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 125 | GetICState()); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 126 | Handle<Code> new_object = factory->NewCode( |
| 127 | desc, flags, masm.CodeObject(), NeedsImmovableCode()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 128 | RecordCodeGeneration(*new_object, &masm); |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 129 | FinishCode(new_object); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 130 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame^] | 131 | if (UseSpecialCache()) { |
| 132 | AddToSpecialCache(new_object); |
| 133 | } else { |
| 134 | // Update the dictionary and the root in Heap. |
| 135 | Handle<UnseededNumberDictionary> dict = |
| 136 | factory->DictionaryAtNumberPut( |
| 137 | Handle<UnseededNumberDictionary>(heap->code_stubs()), |
| 138 | GetKey(), |
| 139 | new_object); |
| 140 | heap->public_set_code_stubs(*dict); |
| 141 | } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 142 | code = *new_object; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 143 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 144 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame^] | 145 | Activate(code); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 146 | ASSERT(!NeedsImmovableCode() || heap->lo_space()->Contains(code)); |
| 147 | return Handle<Code>(code, isolate); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 148 | } |
| 149 | |
| 150 | |
Andrei Popescu | 3100271 | 2010-02-23 13:46:05 +0000 | [diff] [blame] | 151 | const char* CodeStub::MajorName(CodeStub::Major major_key, |
| 152 | bool allow_unknown_keys) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 153 | switch (major_key) { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 154 | #define DEF_CASE(name) case name: return #name "Stub"; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 155 | CODE_STUB_LIST(DEF_CASE) |
| 156 | #undef DEF_CASE |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 157 | default: |
Andrei Popescu | 3100271 | 2010-02-23 13:46:05 +0000 | [diff] [blame] | 158 | if (!allow_unknown_keys) { |
| 159 | UNREACHABLE(); |
| 160 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 161 | return NULL; |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 166 | void CodeStub::PrintName(StringStream* stream) { |
| 167 | stream->Add("%s", MajorName(MajorKey(), false)); |
| 168 | } |
| 169 | |
| 170 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame^] | 171 | void ICCompareStub::AddToSpecialCache(Handle<Code> new_object) { |
| 172 | ASSERT(*known_map_ != NULL); |
| 173 | Isolate* isolate = new_object->GetIsolate(); |
| 174 | Factory* factory = isolate->factory(); |
| 175 | return Map::UpdateCodeCache(known_map_, |
| 176 | factory->compare_ic_symbol(), |
| 177 | new_object); |
| 178 | } |
| 179 | |
| 180 | |
| 181 | bool ICCompareStub::FindCodeInSpecialCache(Code** code_out) { |
| 182 | Isolate* isolate = known_map_->GetIsolate(); |
| 183 | Factory* factory = isolate->factory(); |
| 184 | Code::Flags flags = Code::ComputeFlags( |
| 185 | static_cast<Code::Kind>(GetCodeKind()), |
| 186 | UNINITIALIZED); |
| 187 | Handle<Object> probe( |
| 188 | known_map_->FindInCodeCache(*factory->compare_ic_symbol(), flags)); |
| 189 | if (probe->IsCode()) { |
| 190 | *code_out = Code::cast(*probe); |
| 191 | return true; |
| 192 | } |
| 193 | return false; |
| 194 | } |
| 195 | |
| 196 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 197 | int ICCompareStub::MinorKey() { |
| 198 | return OpField::encode(op_ - Token::EQ) | StateField::encode(state_); |
| 199 | } |
| 200 | |
| 201 | |
| 202 | void ICCompareStub::Generate(MacroAssembler* masm) { |
| 203 | switch (state_) { |
| 204 | case CompareIC::UNINITIALIZED: |
| 205 | GenerateMiss(masm); |
| 206 | break; |
| 207 | case CompareIC::SMIS: |
| 208 | GenerateSmis(masm); |
| 209 | break; |
| 210 | case CompareIC::HEAP_NUMBERS: |
| 211 | GenerateHeapNumbers(masm); |
| 212 | break; |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 213 | case CompareIC::STRINGS: |
| 214 | GenerateStrings(masm); |
| 215 | break; |
| 216 | case CompareIC::SYMBOLS: |
| 217 | GenerateSymbols(masm); |
| 218 | break; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 219 | case CompareIC::OBJECTS: |
| 220 | GenerateObjects(masm); |
| 221 | break; |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame^] | 222 | case CompareIC::KNOWN_OBJECTS: |
| 223 | ASSERT(*known_map_ != NULL); |
| 224 | GenerateKnownObjects(masm); |
| 225 | break; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 226 | default: |
| 227 | UNREACHABLE(); |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 232 | void InstanceofStub::PrintName(StringStream* stream) { |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 233 | const char* args = ""; |
| 234 | if (HasArgsInRegisters()) { |
| 235 | args = "_REGS"; |
| 236 | } |
| 237 | |
| 238 | const char* inline_check = ""; |
| 239 | if (HasCallSiteInlineCheck()) { |
| 240 | inline_check = "_INLINE"; |
| 241 | } |
| 242 | |
| 243 | const char* return_true_false_object = ""; |
| 244 | if (ReturnTrueFalseObject()) { |
| 245 | return_true_false_object = "_TRUEFALSE"; |
| 246 | } |
| 247 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 248 | stream->Add("InstanceofStub%s%s%s", |
| 249 | args, |
| 250 | inline_check, |
| 251 | return_true_false_object); |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 255 | void JSEntryStub::FinishCode(Handle<Code> code) { |
| 256 | Handle<FixedArray> handler_table = |
| 257 | code->GetIsolate()->factory()->NewFixedArray(1, TENURED); |
| 258 | handler_table->set(0, Smi::FromInt(handler_offset_)); |
| 259 | code->set_handler_table(*handler_table); |
| 260 | } |
| 261 | |
| 262 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 263 | void KeyedLoadElementStub::Generate(MacroAssembler* masm) { |
| 264 | switch (elements_kind_) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 265 | case FAST_ELEMENTS: |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 266 | case FAST_SMI_ONLY_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 267 | KeyedLoadStubCompiler::GenerateLoadFastElement(masm); |
| 268 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 269 | case FAST_DOUBLE_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 270 | KeyedLoadStubCompiler::GenerateLoadFastDoubleElement(masm); |
| 271 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 272 | case EXTERNAL_BYTE_ELEMENTS: |
| 273 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 274 | case EXTERNAL_SHORT_ELEMENTS: |
| 275 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| 276 | case EXTERNAL_INT_ELEMENTS: |
| 277 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| 278 | case EXTERNAL_FLOAT_ELEMENTS: |
| 279 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 280 | case EXTERNAL_PIXEL_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 281 | KeyedLoadStubCompiler::GenerateLoadExternalArray(masm, elements_kind_); |
| 282 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 283 | case DICTIONARY_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 284 | KeyedLoadStubCompiler::GenerateLoadDictionaryElement(masm); |
| 285 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 286 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 287 | UNREACHABLE(); |
| 288 | break; |
| 289 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 290 | } |
| 291 | |
| 292 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 293 | void KeyedStoreElementStub::Generate(MacroAssembler* masm) { |
| 294 | switch (elements_kind_) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 295 | case FAST_ELEMENTS: |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 296 | case FAST_SMI_ONLY_ELEMENTS: { |
| 297 | KeyedStoreStubCompiler::GenerateStoreFastElement(masm, |
| 298 | is_js_array_, |
| 299 | elements_kind_); |
| 300 | } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 301 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 302 | case FAST_DOUBLE_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 303 | KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(masm, |
| 304 | is_js_array_); |
| 305 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 306 | case EXTERNAL_BYTE_ELEMENTS: |
| 307 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 308 | case EXTERNAL_SHORT_ELEMENTS: |
| 309 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| 310 | case EXTERNAL_INT_ELEMENTS: |
| 311 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| 312 | case EXTERNAL_FLOAT_ELEMENTS: |
| 313 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 314 | case EXTERNAL_PIXEL_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 315 | KeyedStoreStubCompiler::GenerateStoreExternalArray(masm, elements_kind_); |
| 316 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 317 | case DICTIONARY_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 318 | KeyedStoreStubCompiler::GenerateStoreDictionaryElement(masm); |
| 319 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 320 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 321 | UNREACHABLE(); |
| 322 | break; |
| 323 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 324 | } |
| 325 | |
| 326 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 327 | void ArgumentsAccessStub::PrintName(StringStream* stream) { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 328 | stream->Add("ArgumentsAccessStub_"); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 329 | switch (type_) { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 330 | case READ_ELEMENT: stream->Add("ReadElement"); break; |
| 331 | case NEW_NON_STRICT_FAST: stream->Add("NewNonStrictFast"); break; |
| 332 | case NEW_NON_STRICT_SLOW: stream->Add("NewNonStrictSlow"); break; |
| 333 | case NEW_STRICT: stream->Add("NewStrict"); break; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 334 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 335 | } |
| 336 | |
| 337 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 338 | void CallFunctionStub::PrintName(StringStream* stream) { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 339 | stream->Add("CallFunctionStub_Args%d", argc_); |
| 340 | if (ReceiverMightBeImplicit()) stream->Add("_Implicit"); |
| 341 | if (RecordCallTarget()) stream->Add("_Recording"); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 342 | } |
| 343 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 344 | |
| 345 | void ToBooleanStub::PrintName(StringStream* stream) { |
| 346 | stream->Add("ToBooleanStub_"); |
| 347 | types_.Print(stream); |
| 348 | } |
| 349 | |
| 350 | |
| 351 | void ToBooleanStub::Types::Print(StringStream* stream) const { |
| 352 | if (IsEmpty()) stream->Add("None"); |
| 353 | if (Contains(UNDEFINED)) stream->Add("Undefined"); |
| 354 | if (Contains(BOOLEAN)) stream->Add("Bool"); |
| 355 | if (Contains(NULL_TYPE)) stream->Add("Null"); |
| 356 | if (Contains(SMI)) stream->Add("Smi"); |
| 357 | if (Contains(SPEC_OBJECT)) stream->Add("SpecObject"); |
| 358 | if (Contains(STRING)) stream->Add("String"); |
| 359 | if (Contains(HEAP_NUMBER)) stream->Add("HeapNumber"); |
| 360 | } |
| 361 | |
| 362 | |
| 363 | void ToBooleanStub::Types::TraceTransition(Types to) const { |
| 364 | if (!FLAG_trace_ic) return; |
| 365 | char buffer[100]; |
| 366 | NoAllocationStringAllocator allocator(buffer, |
| 367 | static_cast<unsigned>(sizeof(buffer))); |
| 368 | StringStream stream(&allocator); |
| 369 | stream.Add("[ToBooleanIC ("); |
| 370 | Print(&stream); |
| 371 | stream.Add("->"); |
| 372 | to.Print(&stream); |
| 373 | stream.Add(")]\n"); |
| 374 | stream.OutputToStdOut(); |
| 375 | } |
| 376 | |
| 377 | |
| 378 | bool ToBooleanStub::Types::Record(Handle<Object> object) { |
| 379 | if (object->IsUndefined()) { |
| 380 | Add(UNDEFINED); |
| 381 | return false; |
| 382 | } else if (object->IsBoolean()) { |
| 383 | Add(BOOLEAN); |
| 384 | return object->IsTrue(); |
| 385 | } else if (object->IsNull()) { |
| 386 | Add(NULL_TYPE); |
| 387 | return false; |
| 388 | } else if (object->IsSmi()) { |
| 389 | Add(SMI); |
| 390 | return Smi::cast(*object)->value() != 0; |
| 391 | } else if (object->IsSpecObject()) { |
| 392 | Add(SPEC_OBJECT); |
| 393 | return !object->IsUndetectableObject(); |
| 394 | } else if (object->IsString()) { |
| 395 | Add(STRING); |
| 396 | return !object->IsUndetectableObject() && |
| 397 | String::cast(*object)->length() != 0; |
| 398 | } else if (object->IsHeapNumber()) { |
| 399 | ASSERT(!object->IsUndetectableObject()); |
| 400 | Add(HEAP_NUMBER); |
| 401 | double value = HeapNumber::cast(*object)->value(); |
| 402 | return value != 0 && !isnan(value); |
| 403 | } else { |
| 404 | // We should never see an internal object at runtime here! |
| 405 | UNREACHABLE(); |
| 406 | return true; |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | |
| 411 | bool ToBooleanStub::Types::NeedsMap() const { |
| 412 | return Contains(ToBooleanStub::SPEC_OBJECT) |
| 413 | || Contains(ToBooleanStub::STRING) |
| 414 | || Contains(ToBooleanStub::HEAP_NUMBER); |
| 415 | } |
| 416 | |
| 417 | |
| 418 | bool ToBooleanStub::Types::CanBeUndetectable() const { |
| 419 | return Contains(ToBooleanStub::SPEC_OBJECT) |
| 420 | || Contains(ToBooleanStub::STRING); |
| 421 | } |
| 422 | |
| 423 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 424 | void ElementsTransitionAndStoreStub::Generate(MacroAssembler* masm) { |
| 425 | Label fail; |
| 426 | if (!FLAG_trace_elements_transitions) { |
| 427 | if (to_ == FAST_ELEMENTS) { |
| 428 | if (from_ == FAST_SMI_ONLY_ELEMENTS) { |
| 429 | ElementsTransitionGenerator::GenerateSmiOnlyToObject(masm); |
| 430 | } else if (from_ == FAST_DOUBLE_ELEMENTS) { |
| 431 | ElementsTransitionGenerator::GenerateDoubleToObject(masm, &fail); |
| 432 | } else { |
| 433 | UNREACHABLE(); |
| 434 | } |
| 435 | KeyedStoreStubCompiler::GenerateStoreFastElement(masm, |
| 436 | is_jsarray_, |
| 437 | FAST_ELEMENTS); |
| 438 | } else if (from_ == FAST_SMI_ONLY_ELEMENTS && to_ == FAST_DOUBLE_ELEMENTS) { |
| 439 | ElementsTransitionGenerator::GenerateSmiOnlyToDouble(masm, &fail); |
| 440 | KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(masm, is_jsarray_); |
| 441 | } else { |
| 442 | UNREACHABLE(); |
| 443 | } |
| 444 | } |
| 445 | masm->bind(&fail); |
| 446 | KeyedStoreIC::GenerateRuntimeSetProperty(masm, strict_mode_); |
| 447 | } |
| 448 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 449 | } } // namespace v8::internal |