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 | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 43 | if (index != NumberDictionary::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; |
| 104 | if (!FindCodeInCache(&code)) { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 105 | HandleScope scope(isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 106 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 107 | // Generate the new code. |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 108 | MacroAssembler masm(isolate, NULL, 256); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 109 | GenerateCode(&masm); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 110 | |
| 111 | // Create the code object. |
| 112 | CodeDesc desc; |
| 113 | masm.GetCode(&desc); |
| 114 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 115 | // Copy the generated code into a heap object. |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 116 | Code::Flags flags = Code::ComputeFlags( |
| 117 | static_cast<Code::Kind>(GetCodeKind()), |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 118 | GetICState()); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 119 | Handle<Code> new_object = factory->NewCode( |
| 120 | desc, flags, masm.CodeObject(), NeedsImmovableCode()); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 121 | RecordCodeGeneration(*new_object, &masm); |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 122 | FinishCode(new_object); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 123 | |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 124 | // Update the dictionary and the root in Heap. |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 125 | Handle<NumberDictionary> dict = |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 126 | factory->DictionaryAtNumberPut( |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 127 | Handle<NumberDictionary>(heap->code_stubs()), |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 128 | GetKey(), |
| 129 | new_object); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 130 | heap->public_set_code_stubs(*dict); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 131 | code = *new_object; |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 132 | Activate(code); |
| 133 | } else { |
| 134 | CHECK(IsPregenerated() == code->is_pregenerated()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 135 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 136 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 137 | ASSERT(!NeedsImmovableCode() || heap->lo_space()->Contains(code)); |
| 138 | return Handle<Code>(code, isolate); |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | |
Andrei Popescu | 3100271 | 2010-02-23 13:46:05 +0000 | [diff] [blame] | 142 | const char* CodeStub::MajorName(CodeStub::Major major_key, |
| 143 | bool allow_unknown_keys) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 144 | switch (major_key) { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 145 | #define DEF_CASE(name) case name: return #name "Stub"; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 146 | CODE_STUB_LIST(DEF_CASE) |
| 147 | #undef DEF_CASE |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 148 | default: |
Andrei Popescu | 3100271 | 2010-02-23 13:46:05 +0000 | [diff] [blame] | 149 | if (!allow_unknown_keys) { |
| 150 | UNREACHABLE(); |
| 151 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 152 | return NULL; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 157 | void CodeStub::PrintName(StringStream* stream) { |
| 158 | stream->Add("%s", MajorName(MajorKey(), false)); |
| 159 | } |
| 160 | |
| 161 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 162 | int ICCompareStub::MinorKey() { |
| 163 | return OpField::encode(op_ - Token::EQ) | StateField::encode(state_); |
| 164 | } |
| 165 | |
| 166 | |
| 167 | void ICCompareStub::Generate(MacroAssembler* masm) { |
| 168 | switch (state_) { |
| 169 | case CompareIC::UNINITIALIZED: |
| 170 | GenerateMiss(masm); |
| 171 | break; |
| 172 | case CompareIC::SMIS: |
| 173 | GenerateSmis(masm); |
| 174 | break; |
| 175 | case CompareIC::HEAP_NUMBERS: |
| 176 | GenerateHeapNumbers(masm); |
| 177 | break; |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 178 | case CompareIC::STRINGS: |
| 179 | GenerateStrings(masm); |
| 180 | break; |
| 181 | case CompareIC::SYMBOLS: |
| 182 | GenerateSymbols(masm); |
| 183 | break; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 184 | case CompareIC::OBJECTS: |
| 185 | GenerateObjects(masm); |
| 186 | break; |
| 187 | default: |
| 188 | UNREACHABLE(); |
| 189 | } |
| 190 | } |
| 191 | |
| 192 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 193 | void InstanceofStub::PrintName(StringStream* stream) { |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 194 | const char* args = ""; |
| 195 | if (HasArgsInRegisters()) { |
| 196 | args = "_REGS"; |
| 197 | } |
| 198 | |
| 199 | const char* inline_check = ""; |
| 200 | if (HasCallSiteInlineCheck()) { |
| 201 | inline_check = "_INLINE"; |
| 202 | } |
| 203 | |
| 204 | const char* return_true_false_object = ""; |
| 205 | if (ReturnTrueFalseObject()) { |
| 206 | return_true_false_object = "_TRUEFALSE"; |
| 207 | } |
| 208 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 209 | stream->Add("InstanceofStub%s%s%s", |
| 210 | args, |
| 211 | inline_check, |
| 212 | return_true_false_object); |
Ben Murdoch | 086aeea | 2011-05-13 15:57:08 +0100 | [diff] [blame] | 213 | } |
| 214 | |
| 215 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 216 | void JSEntryStub::FinishCode(Handle<Code> code) { |
| 217 | Handle<FixedArray> handler_table = |
| 218 | code->GetIsolate()->factory()->NewFixedArray(1, TENURED); |
| 219 | handler_table->set(0, Smi::FromInt(handler_offset_)); |
| 220 | code->set_handler_table(*handler_table); |
| 221 | } |
| 222 | |
| 223 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 224 | void KeyedLoadElementStub::Generate(MacroAssembler* masm) { |
| 225 | switch (elements_kind_) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 226 | case FAST_ELEMENTS: |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 227 | case FAST_SMI_ONLY_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 228 | KeyedLoadStubCompiler::GenerateLoadFastElement(masm); |
| 229 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 230 | case FAST_DOUBLE_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 231 | KeyedLoadStubCompiler::GenerateLoadFastDoubleElement(masm); |
| 232 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 233 | case EXTERNAL_BYTE_ELEMENTS: |
| 234 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 235 | case EXTERNAL_SHORT_ELEMENTS: |
| 236 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| 237 | case EXTERNAL_INT_ELEMENTS: |
| 238 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| 239 | case EXTERNAL_FLOAT_ELEMENTS: |
| 240 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 241 | case EXTERNAL_PIXEL_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 242 | KeyedLoadStubCompiler::GenerateLoadExternalArray(masm, elements_kind_); |
| 243 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 244 | case DICTIONARY_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 245 | KeyedLoadStubCompiler::GenerateLoadDictionaryElement(masm); |
| 246 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 247 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 248 | UNREACHABLE(); |
| 249 | break; |
| 250 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 251 | } |
| 252 | |
| 253 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 254 | void KeyedStoreElementStub::Generate(MacroAssembler* masm) { |
| 255 | switch (elements_kind_) { |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 256 | case FAST_ELEMENTS: |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 257 | case FAST_SMI_ONLY_ELEMENTS: { |
| 258 | KeyedStoreStubCompiler::GenerateStoreFastElement(masm, |
| 259 | is_js_array_, |
| 260 | elements_kind_); |
| 261 | } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 262 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 263 | case FAST_DOUBLE_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 264 | KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(masm, |
| 265 | is_js_array_); |
| 266 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 267 | case EXTERNAL_BYTE_ELEMENTS: |
| 268 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 269 | case EXTERNAL_SHORT_ELEMENTS: |
| 270 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| 271 | case EXTERNAL_INT_ELEMENTS: |
| 272 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| 273 | case EXTERNAL_FLOAT_ELEMENTS: |
| 274 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 275 | case EXTERNAL_PIXEL_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 276 | KeyedStoreStubCompiler::GenerateStoreExternalArray(masm, elements_kind_); |
| 277 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 278 | case DICTIONARY_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 279 | KeyedStoreStubCompiler::GenerateStoreDictionaryElement(masm); |
| 280 | break; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 281 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 282 | UNREACHABLE(); |
| 283 | break; |
| 284 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 288 | void ArgumentsAccessStub::PrintName(StringStream* stream) { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 289 | stream->Add("ArgumentsAccessStub_"); |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 290 | switch (type_) { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 291 | case READ_ELEMENT: stream->Add("ReadElement"); break; |
| 292 | case NEW_NON_STRICT_FAST: stream->Add("NewNonStrictFast"); break; |
| 293 | case NEW_NON_STRICT_SLOW: stream->Add("NewNonStrictSlow"); break; |
| 294 | case NEW_STRICT: stream->Add("NewStrict"); break; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 295 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 296 | } |
| 297 | |
| 298 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 299 | void CallFunctionStub::PrintName(StringStream* stream) { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 300 | stream->Add("CallFunctionStub_Args%d", argc_); |
| 301 | if (ReceiverMightBeImplicit()) stream->Add("_Implicit"); |
| 302 | if (RecordCallTarget()) stream->Add("_Recording"); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 303 | } |
| 304 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 305 | |
| 306 | void ToBooleanStub::PrintName(StringStream* stream) { |
| 307 | stream->Add("ToBooleanStub_"); |
| 308 | types_.Print(stream); |
| 309 | } |
| 310 | |
| 311 | |
| 312 | void ToBooleanStub::Types::Print(StringStream* stream) const { |
| 313 | if (IsEmpty()) stream->Add("None"); |
| 314 | if (Contains(UNDEFINED)) stream->Add("Undefined"); |
| 315 | if (Contains(BOOLEAN)) stream->Add("Bool"); |
| 316 | if (Contains(NULL_TYPE)) stream->Add("Null"); |
| 317 | if (Contains(SMI)) stream->Add("Smi"); |
| 318 | if (Contains(SPEC_OBJECT)) stream->Add("SpecObject"); |
| 319 | if (Contains(STRING)) stream->Add("String"); |
| 320 | if (Contains(HEAP_NUMBER)) stream->Add("HeapNumber"); |
| 321 | } |
| 322 | |
| 323 | |
| 324 | void ToBooleanStub::Types::TraceTransition(Types to) const { |
| 325 | if (!FLAG_trace_ic) return; |
| 326 | char buffer[100]; |
| 327 | NoAllocationStringAllocator allocator(buffer, |
| 328 | static_cast<unsigned>(sizeof(buffer))); |
| 329 | StringStream stream(&allocator); |
| 330 | stream.Add("[ToBooleanIC ("); |
| 331 | Print(&stream); |
| 332 | stream.Add("->"); |
| 333 | to.Print(&stream); |
| 334 | stream.Add(")]\n"); |
| 335 | stream.OutputToStdOut(); |
| 336 | } |
| 337 | |
| 338 | |
| 339 | bool ToBooleanStub::Types::Record(Handle<Object> object) { |
| 340 | if (object->IsUndefined()) { |
| 341 | Add(UNDEFINED); |
| 342 | return false; |
| 343 | } else if (object->IsBoolean()) { |
| 344 | Add(BOOLEAN); |
| 345 | return object->IsTrue(); |
| 346 | } else if (object->IsNull()) { |
| 347 | Add(NULL_TYPE); |
| 348 | return false; |
| 349 | } else if (object->IsSmi()) { |
| 350 | Add(SMI); |
| 351 | return Smi::cast(*object)->value() != 0; |
| 352 | } else if (object->IsSpecObject()) { |
| 353 | Add(SPEC_OBJECT); |
| 354 | return !object->IsUndetectableObject(); |
| 355 | } else if (object->IsString()) { |
| 356 | Add(STRING); |
| 357 | return !object->IsUndetectableObject() && |
| 358 | String::cast(*object)->length() != 0; |
| 359 | } else if (object->IsHeapNumber()) { |
| 360 | ASSERT(!object->IsUndetectableObject()); |
| 361 | Add(HEAP_NUMBER); |
| 362 | double value = HeapNumber::cast(*object)->value(); |
| 363 | return value != 0 && !isnan(value); |
| 364 | } else { |
| 365 | // We should never see an internal object at runtime here! |
| 366 | UNREACHABLE(); |
| 367 | return true; |
| 368 | } |
| 369 | } |
| 370 | |
| 371 | |
| 372 | bool ToBooleanStub::Types::NeedsMap() const { |
| 373 | return Contains(ToBooleanStub::SPEC_OBJECT) |
| 374 | || Contains(ToBooleanStub::STRING) |
| 375 | || Contains(ToBooleanStub::HEAP_NUMBER); |
| 376 | } |
| 377 | |
| 378 | |
| 379 | bool ToBooleanStub::Types::CanBeUndetectable() const { |
| 380 | return Contains(ToBooleanStub::SPEC_OBJECT) |
| 381 | || Contains(ToBooleanStub::STRING); |
| 382 | } |
| 383 | |
| 384 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 385 | void ElementsTransitionAndStoreStub::Generate(MacroAssembler* masm) { |
| 386 | Label fail; |
| 387 | if (!FLAG_trace_elements_transitions) { |
| 388 | if (to_ == FAST_ELEMENTS) { |
| 389 | if (from_ == FAST_SMI_ONLY_ELEMENTS) { |
| 390 | ElementsTransitionGenerator::GenerateSmiOnlyToObject(masm); |
| 391 | } else if (from_ == FAST_DOUBLE_ELEMENTS) { |
| 392 | ElementsTransitionGenerator::GenerateDoubleToObject(masm, &fail); |
| 393 | } else { |
| 394 | UNREACHABLE(); |
| 395 | } |
| 396 | KeyedStoreStubCompiler::GenerateStoreFastElement(masm, |
| 397 | is_jsarray_, |
| 398 | FAST_ELEMENTS); |
| 399 | } else if (from_ == FAST_SMI_ONLY_ELEMENTS && to_ == FAST_DOUBLE_ELEMENTS) { |
| 400 | ElementsTransitionGenerator::GenerateSmiOnlyToDouble(masm, &fail); |
| 401 | KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(masm, is_jsarray_); |
| 402 | } else { |
| 403 | UNREACHABLE(); |
| 404 | } |
| 405 | } |
| 406 | masm->bind(&fail); |
| 407 | KeyedStoreIC::GenerateRuntimeSetProperty(masm, strict_mode_); |
| 408 | } |
| 409 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 410 | } } // namespace v8::internal |