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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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| 276 __ bind(&miss); | 276 __ bind(&miss); |
| 277 __ IncrementCounter(counters->megamorphic_stub_cache_misses(), 1, | 277 __ IncrementCounter(counters->megamorphic_stub_cache_misses(), 1, |
| 278 extra2, extra3); | 278 extra2, extra3); |
| 279 } | 279 } |
| 280 | 280 |
| 281 | 281 |
| 282 void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, | 282 void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, |
| 283 int index, | 283 int index, |
| 284 Register prototype) { | 284 Register prototype) { |
| 285 // Load the global or builtins object from the current context. | 285 // Load the global or builtins object from the current context. |
| 286 __ ldr(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); | 286 __ ldr(prototype, |
| 287 MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
| 287 // Load the native context from the global or builtins object. | 288 // Load the native context from the global or builtins object. |
| 288 __ ldr(prototype, | 289 __ ldr(prototype, |
| 289 FieldMemOperand(prototype, GlobalObject::kNativeContextOffset)); | 290 FieldMemOperand(prototype, GlobalObject::kNativeContextOffset)); |
| 290 // Load the function from the native context. | 291 // Load the function from the native context. |
| 291 __ ldr(prototype, MemOperand(prototype, Context::SlotOffset(index))); | 292 __ ldr(prototype, MemOperand(prototype, Context::SlotOffset(index))); |
| 292 // Load the initial map. The global functions all have initial maps. | 293 // Load the initial map. The global functions all have initial maps. |
| 293 __ ldr(prototype, | 294 __ ldr(prototype, |
| 294 FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); | 295 FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
| 295 // Load the prototype from the initial map. | 296 // Load the prototype from the initial map. |
| 296 __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); | 297 __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
| 297 } | 298 } |
| 298 | 299 |
| 299 | 300 |
| 300 void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( | 301 void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
| 301 MacroAssembler* masm, | 302 MacroAssembler* masm, |
| 302 int index, | 303 int index, |
| 303 Register prototype, | 304 Register prototype, |
| 304 Label* miss) { | 305 Label* miss) { |
| 305 Isolate* isolate = masm->isolate(); | 306 Isolate* isolate = masm->isolate(); |
| 306 // Check we're still in the same context. | 307 // Check we're still in the same context. |
| 307 __ ldr(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); | 308 __ ldr(prototype, |
| 308 __ Move(ip, isolate->global()); | 309 MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
| 310 __ Move(ip, isolate->global_object()); |
| 309 __ cmp(prototype, ip); | 311 __ cmp(prototype, ip); |
| 310 __ b(ne, miss); | 312 __ b(ne, miss); |
| 311 // Get the global function with the given index. | 313 // Get the global function with the given index. |
| 312 Handle<JSFunction> function( | 314 Handle<JSFunction> function( |
| 313 JSFunction::cast(isolate->native_context()->get(index))); | 315 JSFunction::cast(isolate->native_context()->get(index))); |
| 314 // Load its initial map. The global functions all have initial maps. | 316 // Load its initial map. The global functions all have initial maps. |
| 315 __ Move(prototype, Handle<Map>(function->initial_map())); | 317 __ Move(prototype, Handle<Map>(function->initial_map())); |
| 316 // Load the prototype from the initial map. | 318 // Load the prototype from the initial map. |
| 317 __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); | 319 __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
| 318 } | 320 } |
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| 4752 __ Jump(ic_slow, RelocInfo::CODE_TARGET); | 4754 __ Jump(ic_slow, RelocInfo::CODE_TARGET); |
| 4753 } | 4755 } |
| 4754 } | 4756 } |
| 4755 | 4757 |
| 4756 | 4758 |
| 4757 #undef __ | 4759 #undef __ |
| 4758 | 4760 |
| 4759 } } // namespace v8::internal | 4761 } } // namespace v8::internal |
| 4760 | 4762 |
| 4761 #endif // V8_TARGET_ARCH_ARM | 4763 #endif // V8_TARGET_ARCH_ARM |
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