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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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221 __ bind(&miss); | 221 __ bind(&miss); |
222 __ IncrementCounter(counters->megamorphic_stub_cache_misses(), 1); | 222 __ IncrementCounter(counters->megamorphic_stub_cache_misses(), 1); |
223 } | 223 } |
224 | 224 |
225 | 225 |
226 void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, | 226 void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, |
227 int index, | 227 int index, |
228 Register prototype) { | 228 Register prototype) { |
229 // Load the global or builtins object from the current context. | 229 // Load the global or builtins object from the current context. |
230 __ movq(prototype, | 230 __ movq(prototype, |
231 Operand(rsi, Context::SlotOffset(Context::GLOBAL_INDEX))); | 231 Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
232 // Load the native context from the global or builtins object. | 232 // Load the native context from the global or builtins object. |
233 __ movq(prototype, | 233 __ movq(prototype, |
234 FieldOperand(prototype, GlobalObject::kNativeContextOffset)); | 234 FieldOperand(prototype, GlobalObject::kNativeContextOffset)); |
235 // Load the function from the native context. | 235 // Load the function from the native context. |
236 __ movq(prototype, Operand(prototype, Context::SlotOffset(index))); | 236 __ movq(prototype, Operand(prototype, Context::SlotOffset(index))); |
237 // Load the initial map. The global functions all have initial maps. | 237 // Load the initial map. The global functions all have initial maps. |
238 __ movq(prototype, | 238 __ movq(prototype, |
239 FieldOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); | 239 FieldOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
240 // Load the prototype from the initial map. | 240 // Load the prototype from the initial map. |
241 __ movq(prototype, FieldOperand(prototype, Map::kPrototypeOffset)); | 241 __ movq(prototype, FieldOperand(prototype, Map::kPrototypeOffset)); |
242 } | 242 } |
243 | 243 |
244 | 244 |
245 void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( | 245 void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
246 MacroAssembler* masm, | 246 MacroAssembler* masm, |
247 int index, | 247 int index, |
248 Register prototype, | 248 Register prototype, |
249 Label* miss) { | 249 Label* miss) { |
250 Isolate* isolate = masm->isolate(); | 250 Isolate* isolate = masm->isolate(); |
251 // Check we're still in the same context. | 251 // Check we're still in the same context. |
252 __ Move(prototype, isolate->global()); | 252 __ Move(prototype, isolate->global_object()); |
253 __ cmpq(Operand(rsi, Context::SlotOffset(Context::GLOBAL_INDEX)), | 253 __ cmpq(Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)), |
254 prototype); | 254 prototype); |
255 __ j(not_equal, miss); | 255 __ j(not_equal, miss); |
256 // Get the global function with the given index. | 256 // Get the global function with the given index. |
257 Handle<JSFunction> function( | 257 Handle<JSFunction> function( |
258 JSFunction::cast(isolate->native_context()->get(index))); | 258 JSFunction::cast(isolate->native_context()->get(index))); |
259 // Load its initial map. The global functions all have initial maps. | 259 // Load its initial map. The global functions all have initial maps. |
260 __ Move(prototype, Handle<Map>(function->initial_map())); | 260 __ Move(prototype, Handle<Map>(function->initial_map())); |
261 // Load the prototype from the initial map. | 261 // Load the prototype from the initial map. |
262 __ movq(prototype, FieldOperand(prototype, Map::kPrototypeOffset)); | 262 __ movq(prototype, FieldOperand(prototype, Map::kPrototypeOffset)); |
263 } | 263 } |
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4077 __ jmp(ic_slow, RelocInfo::CODE_TARGET); | 4077 __ jmp(ic_slow, RelocInfo::CODE_TARGET); |
4078 } | 4078 } |
4079 } | 4079 } |
4080 | 4080 |
4081 | 4081 |
4082 #undef __ | 4082 #undef __ |
4083 | 4083 |
4084 } } // namespace v8::internal | 4084 } } // namespace v8::internal |
4085 | 4085 |
4086 #endif // V8_TARGET_ARCH_X64 | 4086 #endif // V8_TARGET_ARCH_X64 |
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