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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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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, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); |
287 // Load the global context from the global or builtins object. | 287 // Load the native context from the global or builtins object. |
288 __ ldr(prototype, | 288 __ ldr(prototype, |
289 FieldMemOperand(prototype, GlobalObject::kGlobalContextOffset)); | 289 FieldMemOperand(prototype, GlobalObject::kNativeContextOffset)); |
290 // Load the function from the global context. | 290 // Load the function from the native context. |
291 __ ldr(prototype, MemOperand(prototype, Context::SlotOffset(index))); | 291 __ ldr(prototype, MemOperand(prototype, Context::SlotOffset(index))); |
292 // Load the initial map. The global functions all have initial maps. | 292 // Load the initial map. The global functions all have initial maps. |
293 __ ldr(prototype, | 293 __ ldr(prototype, |
294 FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); | 294 FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
295 // Load the prototype from the initial map. | 295 // Load the prototype from the initial map. |
296 __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); | 296 __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
297 } | 297 } |
298 | 298 |
299 | 299 |
300 void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( | 300 void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
301 MacroAssembler* masm, | 301 MacroAssembler* masm, |
302 int index, | 302 int index, |
303 Register prototype, | 303 Register prototype, |
304 Label* miss) { | 304 Label* miss) { |
305 Isolate* isolate = masm->isolate(); | 305 Isolate* isolate = masm->isolate(); |
306 // Check we're still in the same context. | 306 // Check we're still in the same context. |
307 __ ldr(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); | 307 __ ldr(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); |
308 __ Move(ip, isolate->global()); | 308 __ Move(ip, isolate->global()); |
309 __ cmp(prototype, ip); | 309 __ cmp(prototype, ip); |
310 __ b(ne, miss); | 310 __ b(ne, miss); |
311 // Get the global function with the given index. | 311 // Get the global function with the given index. |
312 Handle<JSFunction> function( | 312 Handle<JSFunction> function( |
313 JSFunction::cast(isolate->global_context()->get(index))); | 313 JSFunction::cast(isolate->native_context()->get(index))); |
314 // Load its initial map. The global functions all have initial maps. | 314 // Load its initial map. The global functions all have initial maps. |
315 __ Move(prototype, Handle<Map>(function->initial_map())); | 315 __ Move(prototype, Handle<Map>(function->initial_map())); |
316 // Load the prototype from the initial map. | 316 // Load the prototype from the initial map. |
317 __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); | 317 __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
318 } | 318 } |
319 | 319 |
320 | 320 |
321 // Load a fast property out of a holder object (src). In-object properties | 321 // Load a fast property out of a holder object (src). In-object properties |
322 // are loaded directly otherwise the property is loaded from the properties | 322 // are loaded directly otherwise the property is loaded from the properties |
323 // fixed array. | 323 // fixed array. |
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4725 __ Jump(ic_slow, RelocInfo::CODE_TARGET); | 4725 __ Jump(ic_slow, RelocInfo::CODE_TARGET); |
4726 } | 4726 } |
4727 } | 4727 } |
4728 | 4728 |
4729 | 4729 |
4730 #undef __ | 4730 #undef __ |
4731 | 4731 |
4732 } } // namespace v8::internal | 4732 } } // namespace v8::internal |
4733 | 4733 |
4734 #endif // V8_TARGET_ARCH_ARM | 4734 #endif // V8_TARGET_ARCH_ARM |
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