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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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| 263 __ bind(&miss); | 263 __ bind(&miss); |
| 264 __ IncrementCounter(counters->megamorphic_stub_cache_misses(), 1, | 264 __ IncrementCounter(counters->megamorphic_stub_cache_misses(), 1, |
| 265 extra2, extra3); | 265 extra2, extra3); |
| 266 } | 266 } |
| 267 | 267 |
| 268 | 268 |
| 269 void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, | 269 void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, |
| 270 int index, | 270 int index, |
| 271 Register prototype) { | 271 Register prototype) { |
| 272 // Load the global or builtins object from the current context. | 272 // Load the global or builtins object from the current context. |
| 273 __ lw(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); | 273 __ lw(prototype, |
| 274 MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
| 274 // Load the native context from the global or builtins object. | 275 // Load the native context from the global or builtins object. |
| 275 __ lw(prototype, | 276 __ lw(prototype, |
| 276 FieldMemOperand(prototype, GlobalObject::kNativeContextOffset)); | 277 FieldMemOperand(prototype, GlobalObject::kNativeContextOffset)); |
| 277 // Load the function from the native context. | 278 // Load the function from the native context. |
| 278 __ lw(prototype, MemOperand(prototype, Context::SlotOffset(index))); | 279 __ lw(prototype, MemOperand(prototype, Context::SlotOffset(index))); |
| 279 // Load the initial map. The global functions all have initial maps. | 280 // Load the initial map. The global functions all have initial maps. |
| 280 __ lw(prototype, | 281 __ lw(prototype, |
| 281 FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); | 282 FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
| 282 // Load the prototype from the initial map. | 283 // Load the prototype from the initial map. |
| 283 __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); | 284 __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
| 284 } | 285 } |
| 285 | 286 |
| 286 | 287 |
| 287 void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( | 288 void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
| 288 MacroAssembler* masm, | 289 MacroAssembler* masm, |
| 289 int index, | 290 int index, |
| 290 Register prototype, | 291 Register prototype, |
| 291 Label* miss) { | 292 Label* miss) { |
| 292 Isolate* isolate = masm->isolate(); | 293 Isolate* isolate = masm->isolate(); |
| 293 // Check we're still in the same context. | 294 // Check we're still in the same context. |
| 294 __ lw(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); | 295 __ lw(prototype, |
| 296 MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
| 295 ASSERT(!prototype.is(at)); | 297 ASSERT(!prototype.is(at)); |
| 296 __ li(at, isolate->global()); | 298 __ li(at, isolate->global_object()); |
| 297 __ Branch(miss, ne, prototype, Operand(at)); | 299 __ Branch(miss, ne, prototype, Operand(at)); |
| 298 // Get the global function with the given index. | 300 // Get the global function with the given index. |
| 299 Handle<JSFunction> function( | 301 Handle<JSFunction> function( |
| 300 JSFunction::cast(isolate->native_context()->get(index))); | 302 JSFunction::cast(isolate->native_context()->get(index))); |
| 301 // Load its initial map. The global functions all have initial maps. | 303 // Load its initial map. The global functions all have initial maps. |
| 302 __ li(prototype, Handle<Map>(function->initial_map())); | 304 __ li(prototype, Handle<Map>(function->initial_map())); |
| 303 // Load the prototype from the initial map. | 305 // Load the prototype from the initial map. |
| 304 __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); | 306 __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
| 305 } | 307 } |
| 306 | 308 |
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| 4813 __ Jump(ic_slow, RelocInfo::CODE_TARGET); | 4815 __ Jump(ic_slow, RelocInfo::CODE_TARGET); |
| 4814 } | 4816 } |
| 4815 } | 4817 } |
| 4816 | 4818 |
| 4817 | 4819 |
| 4818 #undef __ | 4820 #undef __ |
| 4819 | 4821 |
| 4820 } } // namespace v8::internal | 4822 } } // namespace v8::internal |
| 4821 | 4823 |
| 4822 #endif // V8_TARGET_ARCH_MIPS | 4824 #endif // V8_TARGET_ARCH_MIPS |
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