ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +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" |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 32 | #include "stub-cache.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 33 | #include "factory.h" |
erik.corry@gmail.com | 0511e24 | 2011-01-19 11:11:08 +0000 | [diff] [blame] | 34 | #include "gdb-jit.h" |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 35 | #include "macro-assembler.h" |
| 36 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 37 | namespace v8 { |
| 38 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 39 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 40 | bool CodeStub::FindCodeInCache(Code** code_out) { |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 41 | Heap* heap = Isolate::Current()->heap(); |
| 42 | int index = heap->code_stubs()->FindEntry(GetKey()); |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 43 | if (index != UnseededNumberDictionary::kNotFound) { |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 44 | *code_out = Code::cast(heap->code_stubs()->ValueAt(index)); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 45 | return true; |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 46 | } |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 47 | return false; |
| 48 | } |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 49 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 50 | |
| 51 | void CodeStub::GenerateCode(MacroAssembler* masm) { |
| 52 | // Update the static counter each time a new code stub is generated. |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 53 | masm->isolate()->counters()->code_stubs()->Increment(); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 54 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 55 | // Nested stubs are not allowed for leaves. |
| 56 | AllowStubCallsScope allow_scope(masm, false); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 57 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 58 | // Generate the code for the stub. |
| 59 | masm->set_generating_stub(true); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 60 | NoCurrentFrameScope scope(masm); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 61 | Generate(masm); |
| 62 | } |
| 63 | |
| 64 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 65 | SmartArrayPointer<const char> CodeStub::GetName() { |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +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 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 75 | void CodeStub::RecordCodeGeneration(Code* code, MacroAssembler* masm) { |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 76 | Isolate* isolate = masm->isolate(); |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 77 | SmartArrayPointer<const char> name = GetName(); |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 78 | PROFILE(isolate, CodeCreateEvent(Logger::STUB_TAG, code, *name)); |
| 79 | GDBJIT(AddCode(GDBJITInterface::STUB, *name, code)); |
fschneider@chromium.org | 7979bbb | 2011-03-28 10:47:03 +0000 | [diff] [blame] | 80 | Counters* counters = isolate->counters(); |
| 81 | counters->total_stubs_code_size()->Increment(code->instruction_size()); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 82 | } |
| 83 | |
| 84 | |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 85 | int CodeStub::GetCodeKind() { |
| 86 | return Code::STUB; |
| 87 | } |
| 88 | |
| 89 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 90 | Handle<Code> CodeStub::GetCode() { |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 91 | Isolate* isolate = Isolate::Current(); |
| 92 | Factory* factory = isolate->factory(); |
| 93 | Heap* heap = isolate->heap(); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 94 | Code* code; |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 95 | if (UseSpecialCache() |
| 96 | ? FindCodeInSpecialCache(&code) |
| 97 | : FindCodeInCache(&code)) { |
| 98 | ASSERT(IsPregenerated() == code->is_pregenerated()); |
| 99 | return Handle<Code>(code); |
| 100 | } |
| 101 | |
| 102 | { |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 103 | HandleScope scope(isolate); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 104 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 105 | // Generate the new code. |
kmillikin@chromium.org | c36ce6e | 2011-04-04 08:25:31 +0000 | [diff] [blame] | 106 | MacroAssembler masm(isolate, NULL, 256); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 107 | GenerateCode(&masm); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 108 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 109 | // Create the code object. |
| 110 | CodeDesc desc; |
| 111 | masm.GetCode(&desc); |
| 112 | |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 113 | // Copy the generated code into a heap object. |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 114 | Code::Flags flags = Code::ComputeFlags( |
| 115 | static_cast<Code::Kind>(GetCodeKind()), |
ager@chromium.org | ce5e87b | 2010-03-10 10:24:18 +0000 | [diff] [blame] | 116 | GetICState()); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 117 | Handle<Code> new_object = factory->NewCode( |
danno@chromium.org | 4d3fe4e | 2011-03-10 10:14:28 +0000 | [diff] [blame] | 118 | desc, flags, masm.CodeObject(), NeedsImmovableCode()); |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 119 | new_object->set_major_key(MajorKey()); |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 120 | FinishCode(new_object); |
danno@chromium.org | 1044a4d | 2012-04-30 12:34:39 +0000 | [diff] [blame] | 121 | RecordCodeGeneration(*new_object, &masm); |
| 122 | |
| 123 | #ifdef ENABLE_DISASSEMBLER |
| 124 | if (FLAG_print_code_stubs) { |
| 125 | new_object->Disassemble(*GetName()); |
| 126 | PrintF("\n"); |
| 127 | } |
| 128 | #endif |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 129 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 130 | if (UseSpecialCache()) { |
| 131 | AddToSpecialCache(new_object); |
| 132 | } else { |
| 133 | // Update the dictionary and the root in Heap. |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 134 | Handle<UnseededNumberDictionary> dict = |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 135 | factory->DictionaryAtNumberPut( |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 136 | Handle<UnseededNumberDictionary>(heap->code_stubs()), |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 137 | GetKey(), |
| 138 | new_object); |
| 139 | heap->public_set_code_stubs(*dict); |
| 140 | } |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 141 | code = *new_object; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 142 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 143 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 144 | Activate(code); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 145 | ASSERT(!NeedsImmovableCode() || heap->lo_space()->Contains(code)); |
| 146 | return Handle<Code>(code, isolate); |
kmillikin@chromium.org | 13bd294 | 2009-12-16 15:36:05 +0000 | [diff] [blame] | 147 | } |
| 148 | |
| 149 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 150 | const char* CodeStub::MajorName(CodeStub::Major major_key, |
| 151 | bool allow_unknown_keys) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 152 | switch (major_key) { |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 153 | #define DEF_CASE(name) case name: return #name "Stub"; |
ager@chromium.org | c4c9272 | 2009-11-18 14:12:51 +0000 | [diff] [blame] | 154 | CODE_STUB_LIST(DEF_CASE) |
ager@chromium.org | 3811b43 | 2009-10-28 14:53:37 +0000 | [diff] [blame] | 155 | #undef DEF_CASE |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 156 | default: |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 157 | if (!allow_unknown_keys) { |
| 158 | UNREACHABLE(); |
| 159 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 160 | return NULL; |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 165 | void CodeStub::PrintName(StringStream* stream) { |
| 166 | stream->Add("%s", MajorName(MajorKey(), false)); |
| 167 | } |
| 168 | |
| 169 | |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 170 | void ICCompareStub::AddToSpecialCache(Handle<Code> new_object) { |
| 171 | ASSERT(*known_map_ != NULL); |
| 172 | Isolate* isolate = new_object->GetIsolate(); |
| 173 | Factory* factory = isolate->factory(); |
| 174 | return Map::UpdateCodeCache(known_map_, |
| 175 | factory->compare_ic_symbol(), |
| 176 | new_object); |
| 177 | } |
| 178 | |
| 179 | |
| 180 | bool ICCompareStub::FindCodeInSpecialCache(Code** code_out) { |
| 181 | Isolate* isolate = known_map_->GetIsolate(); |
| 182 | Factory* factory = isolate->factory(); |
| 183 | Code::Flags flags = Code::ComputeFlags( |
| 184 | static_cast<Code::Kind>(GetCodeKind()), |
| 185 | UNINITIALIZED); |
| 186 | Handle<Object> probe( |
| 187 | known_map_->FindInCodeCache(*factory->compare_ic_symbol(), flags)); |
| 188 | if (probe->IsCode()) { |
| 189 | *code_out = Code::cast(*probe); |
| 190 | return true; |
| 191 | } |
| 192 | return false; |
| 193 | } |
| 194 | |
| 195 | |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 196 | int ICCompareStub::MinorKey() { |
| 197 | return OpField::encode(op_ - Token::EQ) | StateField::encode(state_); |
| 198 | } |
| 199 | |
| 200 | |
| 201 | void ICCompareStub::Generate(MacroAssembler* masm) { |
| 202 | switch (state_) { |
| 203 | case CompareIC::UNINITIALIZED: |
| 204 | GenerateMiss(masm); |
| 205 | break; |
| 206 | case CompareIC::SMIS: |
| 207 | GenerateSmis(masm); |
| 208 | break; |
| 209 | case CompareIC::HEAP_NUMBERS: |
| 210 | GenerateHeapNumbers(masm); |
| 211 | break; |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 212 | case CompareIC::STRINGS: |
| 213 | GenerateStrings(masm); |
| 214 | break; |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 215 | case CompareIC::SYMBOLS: |
| 216 | GenerateSymbols(masm); |
| 217 | break; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 218 | case CompareIC::OBJECTS: |
| 219 | GenerateObjects(masm); |
| 220 | break; |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 221 | case CompareIC::KNOWN_OBJECTS: |
| 222 | ASSERT(*known_map_ != NULL); |
| 223 | GenerateKnownObjects(masm); |
| 224 | break; |
kasperl@chromium.org | a555126 | 2010-12-07 12:49:48 +0000 | [diff] [blame] | 225 | default: |
| 226 | UNREACHABLE(); |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 231 | void InstanceofStub::PrintName(StringStream* stream) { |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 232 | const char* args = ""; |
| 233 | if (HasArgsInRegisters()) { |
| 234 | args = "_REGS"; |
| 235 | } |
| 236 | |
| 237 | const char* inline_check = ""; |
| 238 | if (HasCallSiteInlineCheck()) { |
| 239 | inline_check = "_INLINE"; |
| 240 | } |
| 241 | |
| 242 | const char* return_true_false_object = ""; |
| 243 | if (ReturnTrueFalseObject()) { |
| 244 | return_true_false_object = "_TRUEFALSE"; |
| 245 | } |
| 246 | |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 247 | stream->Add("InstanceofStub%s%s%s", |
| 248 | args, |
| 249 | inline_check, |
| 250 | return_true_false_object); |
kmillikin@chromium.org | d2c22f0 | 2011-01-10 08:15:37 +0000 | [diff] [blame] | 251 | } |
| 252 | |
| 253 | |
jkummerow@chromium.org | 04e4f1e | 2011-11-14 13:36:17 +0000 | [diff] [blame] | 254 | void JSEntryStub::FinishCode(Handle<Code> code) { |
| 255 | Handle<FixedArray> handler_table = |
| 256 | code->GetIsolate()->factory()->NewFixedArray(1, TENURED); |
| 257 | handler_table->set(0, Smi::FromInt(handler_offset_)); |
| 258 | code->set_handler_table(*handler_table); |
| 259 | } |
| 260 | |
| 261 | |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 262 | void KeyedLoadElementStub::Generate(MacroAssembler* masm) { |
| 263 | switch (elements_kind_) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 264 | case FAST_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 265 | case FAST_HOLEY_ELEMENTS: |
| 266 | case FAST_SMI_ELEMENTS: |
| 267 | case FAST_HOLEY_SMI_ELEMENTS: |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 268 | KeyedLoadStubCompiler::GenerateLoadFastElement(masm); |
| 269 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 270 | case FAST_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 271 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 272 | KeyedLoadStubCompiler::GenerateLoadFastDoubleElement(masm); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 273 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 274 | case EXTERNAL_BYTE_ELEMENTS: |
| 275 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 276 | case EXTERNAL_SHORT_ELEMENTS: |
| 277 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| 278 | case EXTERNAL_INT_ELEMENTS: |
| 279 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| 280 | case EXTERNAL_FLOAT_ELEMENTS: |
| 281 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 282 | case EXTERNAL_PIXEL_ELEMENTS: |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 283 | KeyedLoadStubCompiler::GenerateLoadExternalArray(masm, elements_kind_); |
| 284 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 285 | case DICTIONARY_ELEMENTS: |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 286 | KeyedLoadStubCompiler::GenerateLoadDictionaryElement(masm); |
| 287 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 288 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 289 | UNREACHABLE(); |
| 290 | break; |
| 291 | } |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 292 | } |
| 293 | |
| 294 | |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 295 | void KeyedStoreElementStub::Generate(MacroAssembler* masm) { |
| 296 | switch (elements_kind_) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 297 | case FAST_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 298 | case FAST_HOLEY_ELEMENTS: |
| 299 | case FAST_SMI_ELEMENTS: |
| 300 | case FAST_HOLEY_SMI_ELEMENTS: { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 301 | KeyedStoreStubCompiler::GenerateStoreFastElement(masm, |
| 302 | is_js_array_, |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 303 | elements_kind_, |
| 304 | grow_mode_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 305 | } |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 306 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 307 | case FAST_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 308 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 309 | KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(masm, |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 310 | is_js_array_, |
| 311 | grow_mode_); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 312 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 313 | case EXTERNAL_BYTE_ELEMENTS: |
| 314 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 315 | case EXTERNAL_SHORT_ELEMENTS: |
| 316 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| 317 | case EXTERNAL_INT_ELEMENTS: |
| 318 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| 319 | case EXTERNAL_FLOAT_ELEMENTS: |
| 320 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 321 | case EXTERNAL_PIXEL_ELEMENTS: |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 322 | KeyedStoreStubCompiler::GenerateStoreExternalArray(masm, elements_kind_); |
| 323 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 324 | case DICTIONARY_ELEMENTS: |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 325 | KeyedStoreStubCompiler::GenerateStoreDictionaryElement(masm); |
| 326 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 327 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 328 | UNREACHABLE(); |
| 329 | break; |
| 330 | } |
ager@chromium.org | ea91cc5 | 2011-05-23 06:06:11 +0000 | [diff] [blame] | 331 | } |
| 332 | |
| 333 | |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 334 | void ArgumentsAccessStub::PrintName(StringStream* stream) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 335 | stream->Add("ArgumentsAccessStub_"); |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 336 | switch (type_) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 337 | case READ_ELEMENT: stream->Add("ReadElement"); break; |
| 338 | case NEW_NON_STRICT_FAST: stream->Add("NewNonStrictFast"); break; |
| 339 | case NEW_NON_STRICT_SLOW: stream->Add("NewNonStrictSlow"); break; |
| 340 | case NEW_STRICT: stream->Add("NewStrict"); break; |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 341 | } |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 342 | } |
| 343 | |
| 344 | |
| 345 | void CallFunctionStub::PrintName(StringStream* stream) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 346 | stream->Add("CallFunctionStub_Args%d", argc_); |
| 347 | if (ReceiverMightBeImplicit()) stream->Add("_Implicit"); |
| 348 | if (RecordCallTarget()) stream->Add("_Recording"); |
whesse@chromium.org | 030d38e | 2011-07-13 13:23:34 +0000 | [diff] [blame] | 349 | } |
| 350 | |
ricow@chromium.org | 9fa0967 | 2011-07-25 11:05:35 +0000 | [diff] [blame] | 351 | |
danno@chromium.org | fa458e4 | 2012-02-01 10:48:36 +0000 | [diff] [blame] | 352 | void CallConstructStub::PrintName(StringStream* stream) { |
| 353 | stream->Add("CallConstructStub"); |
| 354 | if (RecordCallTarget()) stream->Add("_Recording"); |
| 355 | } |
| 356 | |
| 357 | |
ricow@chromium.org | 9fa0967 | 2011-07-25 11:05:35 +0000 | [diff] [blame] | 358 | void ToBooleanStub::PrintName(StringStream* stream) { |
| 359 | stream->Add("ToBooleanStub_"); |
| 360 | types_.Print(stream); |
| 361 | } |
| 362 | |
| 363 | |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 364 | void ToBooleanStub::Types::Print(StringStream* stream) const { |
ricow@chromium.org | 9fa0967 | 2011-07-25 11:05:35 +0000 | [diff] [blame] | 365 | if (IsEmpty()) stream->Add("None"); |
| 366 | if (Contains(UNDEFINED)) stream->Add("Undefined"); |
| 367 | if (Contains(BOOLEAN)) stream->Add("Bool"); |
ricow@chromium.org | 9fa0967 | 2011-07-25 11:05:35 +0000 | [diff] [blame] | 368 | if (Contains(NULL_TYPE)) stream->Add("Null"); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 369 | if (Contains(SMI)) stream->Add("Smi"); |
ricow@chromium.org | 9fa0967 | 2011-07-25 11:05:35 +0000 | [diff] [blame] | 370 | if (Contains(SPEC_OBJECT)) stream->Add("SpecObject"); |
| 371 | if (Contains(STRING)) stream->Add("String"); |
| 372 | if (Contains(HEAP_NUMBER)) stream->Add("HeapNumber"); |
ricow@chromium.org | 9fa0967 | 2011-07-25 11:05:35 +0000 | [diff] [blame] | 373 | } |
| 374 | |
| 375 | |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 376 | void ToBooleanStub::Types::TraceTransition(Types to) const { |
ricow@chromium.org | 9fa0967 | 2011-07-25 11:05:35 +0000 | [diff] [blame] | 377 | if (!FLAG_trace_ic) return; |
| 378 | char buffer[100]; |
| 379 | NoAllocationStringAllocator allocator(buffer, |
| 380 | static_cast<unsigned>(sizeof(buffer))); |
| 381 | StringStream stream(&allocator); |
| 382 | stream.Add("[ToBooleanIC ("); |
| 383 | Print(&stream); |
| 384 | stream.Add("->"); |
| 385 | to.Print(&stream); |
| 386 | stream.Add(")]\n"); |
| 387 | stream.OutputToStdOut(); |
| 388 | } |
| 389 | |
| 390 | |
| 391 | bool ToBooleanStub::Types::Record(Handle<Object> object) { |
| 392 | if (object->IsUndefined()) { |
| 393 | Add(UNDEFINED); |
| 394 | return false; |
| 395 | } else if (object->IsBoolean()) { |
| 396 | Add(BOOLEAN); |
| 397 | return object->IsTrue(); |
| 398 | } else if (object->IsNull()) { |
| 399 | Add(NULL_TYPE); |
| 400 | return false; |
| 401 | } else if (object->IsSmi()) { |
| 402 | Add(SMI); |
| 403 | return Smi::cast(*object)->value() != 0; |
| 404 | } else if (object->IsSpecObject()) { |
| 405 | Add(SPEC_OBJECT); |
| 406 | return !object->IsUndetectableObject(); |
| 407 | } else if (object->IsString()) { |
| 408 | Add(STRING); |
| 409 | return !object->IsUndetectableObject() && |
| 410 | String::cast(*object)->length() != 0; |
| 411 | } else if (object->IsHeapNumber()) { |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 412 | ASSERT(!object->IsUndetectableObject()); |
ricow@chromium.org | 9fa0967 | 2011-07-25 11:05:35 +0000 | [diff] [blame] | 413 | Add(HEAP_NUMBER); |
| 414 | double value = HeapNumber::cast(*object)->value(); |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 415 | return value != 0 && !isnan(value); |
ricow@chromium.org | 9fa0967 | 2011-07-25 11:05:35 +0000 | [diff] [blame] | 416 | } else { |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 417 | // We should never see an internal object at runtime here! |
| 418 | UNREACHABLE(); |
| 419 | return true; |
ricow@chromium.org | 9fa0967 | 2011-07-25 11:05:35 +0000 | [diff] [blame] | 420 | } |
| 421 | } |
| 422 | |
| 423 | |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 424 | bool ToBooleanStub::Types::NeedsMap() const { |
| 425 | return Contains(ToBooleanStub::SPEC_OBJECT) |
| 426 | || Contains(ToBooleanStub::STRING) |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 427 | || Contains(ToBooleanStub::HEAP_NUMBER); |
| 428 | } |
| 429 | |
| 430 | |
| 431 | bool ToBooleanStub::Types::CanBeUndetectable() const { |
| 432 | return Contains(ToBooleanStub::SPEC_OBJECT) |
| 433 | || Contains(ToBooleanStub::STRING); |
vegorov@chromium.org | 7943d46 | 2011-08-01 11:41:52 +0000 | [diff] [blame] | 434 | } |
| 435 | |
| 436 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 437 | void ElementsTransitionAndStoreStub::Generate(MacroAssembler* masm) { |
| 438 | Label fail; |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 439 | ASSERT(!IsFastHoleyElementsKind(from_) || IsFastHoleyElementsKind(to_)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 440 | if (!FLAG_trace_elements_transitions) { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 441 | if (IsFastSmiOrObjectElementsKind(to_)) { |
| 442 | if (IsFastSmiOrObjectElementsKind(from_)) { |
| 443 | ElementsTransitionGenerator:: |
| 444 | GenerateMapChangeElementsTransition(masm); |
| 445 | } else if (IsFastDoubleElementsKind(from_)) { |
| 446 | ASSERT(!IsFastSmiElementsKind(to_)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 447 | ElementsTransitionGenerator::GenerateDoubleToObject(masm, &fail); |
| 448 | } else { |
| 449 | UNREACHABLE(); |
| 450 | } |
| 451 | KeyedStoreStubCompiler::GenerateStoreFastElement(masm, |
| 452 | is_jsarray_, |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 453 | to_, |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 454 | grow_mode_); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 455 | } else if (IsFastSmiElementsKind(from_) && |
| 456 | IsFastDoubleElementsKind(to_)) { |
| 457 | ElementsTransitionGenerator::GenerateSmiToDouble(masm, &fail); |
ulan@chromium.org | 65a89c2 | 2012-02-14 11:46:07 +0000 | [diff] [blame] | 458 | KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(masm, |
| 459 | is_jsarray_, |
| 460 | grow_mode_); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 461 | } else if (IsFastDoubleElementsKind(from_)) { |
| 462 | ASSERT(to_ == FAST_HOLEY_DOUBLE_ELEMENTS); |
| 463 | ElementsTransitionGenerator:: |
| 464 | GenerateMapChangeElementsTransition(masm); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 465 | } else { |
| 466 | UNREACHABLE(); |
| 467 | } |
| 468 | } |
| 469 | masm->bind(&fail); |
| 470 | KeyedStoreIC::GenerateRuntimeSetProperty(masm, strict_mode_); |
| 471 | } |
| 472 | |
verwaest@chromium.org | 753aee4 | 2012-07-17 16:15:42 +0000 | [diff] [blame^] | 473 | |
| 474 | FunctionEntryHook ProfileEntryHookStub::entry_hook_ = NULL; |
| 475 | |
| 476 | |
| 477 | void ProfileEntryHookStub::EntryHookTrampoline(intptr_t function, |
| 478 | intptr_t stack_pointer) { |
| 479 | if (entry_hook_ != NULL) |
| 480 | entry_hook_(function, stack_pointer); |
| 481 | } |
| 482 | |
| 483 | |
| 484 | bool ProfileEntryHookStub::SetFunctionEntryHook(FunctionEntryHook entry_hook) { |
| 485 | // We don't allow setting a new entry hook over one that's |
| 486 | // already active, as the hooks won't stack. |
| 487 | if (entry_hook != 0 && entry_hook_ != 0) |
| 488 | return false; |
| 489 | |
| 490 | entry_hook_ = entry_hook; |
| 491 | return true; |
| 492 | } |
| 493 | |
| 494 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 495 | } } // namespace v8::internal |