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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))); |
| 274 // Load the global context from the global or builtins object. |
273 __ lw(prototype, | 275 __ lw(prototype, |
274 MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); | 276 FieldMemOperand(prototype, GlobalObject::kGlobalContextOffset)); |
275 // Load the native context from the global or builtins object. | 277 // Load the function from the global context. |
276 __ lw(prototype, | |
277 FieldMemOperand(prototype, GlobalObject::kNativeContextOffset)); | |
278 // Load the function from the native context. | |
279 __ lw(prototype, MemOperand(prototype, Context::SlotOffset(index))); | 278 __ lw(prototype, MemOperand(prototype, Context::SlotOffset(index))); |
280 // Load the initial map. The global functions all have initial maps. | 279 // Load the initial map. The global functions all have initial maps. |
281 __ lw(prototype, | 280 __ lw(prototype, |
282 FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); | 281 FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
283 // Load the prototype from the initial map. | 282 // Load the prototype from the initial map. |
284 __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); | 283 __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
285 } | 284 } |
286 | 285 |
287 | 286 |
288 void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( | 287 void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
289 MacroAssembler* masm, | 288 MacroAssembler* masm, |
290 int index, | 289 int index, |
291 Register prototype, | 290 Register prototype, |
292 Label* miss) { | 291 Label* miss) { |
293 Isolate* isolate = masm->isolate(); | 292 Isolate* isolate = masm->isolate(); |
294 // Check we're still in the same context. | 293 // Check we're still in the same context. |
295 __ lw(prototype, | 294 __ lw(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); |
296 MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); | |
297 ASSERT(!prototype.is(at)); | 295 ASSERT(!prototype.is(at)); |
298 __ li(at, isolate->global_object()); | 296 __ li(at, isolate->global()); |
299 __ Branch(miss, ne, prototype, Operand(at)); | 297 __ Branch(miss, ne, prototype, Operand(at)); |
300 // Get the global function with the given index. | 298 // Get the global function with the given index. |
301 Handle<JSFunction> function( | 299 Handle<JSFunction> function( |
302 JSFunction::cast(isolate->native_context()->get(index))); | 300 JSFunction::cast(isolate->global_context()->get(index))); |
303 // Load its initial map. The global functions all have initial maps. | 301 // Load its initial map. The global functions all have initial maps. |
304 __ li(prototype, Handle<Map>(function->initial_map())); | 302 __ li(prototype, Handle<Map>(function->initial_map())); |
305 // Load the prototype from the initial map. | 303 // Load the prototype from the initial map. |
306 __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); | 304 __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
307 } | 305 } |
308 | 306 |
309 | 307 |
310 // Load a fast property out of a holder object (src). In-object properties | 308 // Load a fast property out of a holder object (src). In-object properties |
311 // are loaded directly otherwise the property is loaded from the properties | 309 // are loaded directly otherwise the property is loaded from the properties |
312 // fixed array. | 310 // fixed array. |
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2713 // Handle store cache miss. | 2711 // Handle store cache miss. |
2714 __ bind(&miss); | 2712 __ bind(&miss); |
2715 Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss(); | 2713 Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss(); |
2716 __ Jump(ic, RelocInfo::CODE_TARGET); | 2714 __ Jump(ic, RelocInfo::CODE_TARGET); |
2717 | 2715 |
2718 // Return the generated code. | 2716 // Return the generated code. |
2719 return GetCode(Code::CALLBACKS, name); | 2717 return GetCode(Code::CALLBACKS, name); |
2720 } | 2718 } |
2721 | 2719 |
2722 | 2720 |
2723 #undef __ | 2721 Handle<Code> StoreStubCompiler::CompileStoreViaSetter( |
2724 #define __ ACCESS_MASM(masm) | 2722 Handle<String> name, |
2725 | 2723 Handle<JSObject> receiver, |
2726 | 2724 Handle<JSObject> holder, |
2727 void StoreStubCompiler::GenerateStoreViaSetter( | |
2728 MacroAssembler* masm, | |
2729 Handle<JSFunction> setter) { | 2725 Handle<JSFunction> setter) { |
2730 // ----------- S t a t e ------------- | 2726 // ----------- S t a t e ------------- |
2731 // -- a0 : value | 2727 // -- a0 : value |
2732 // -- a1 : receiver | 2728 // -- a1 : receiver |
2733 // -- a2 : name | 2729 // -- a2 : name |
2734 // -- ra : return address | 2730 // -- ra : return address |
2735 // ----------------------------------- | 2731 // ----------------------------------- |
| 2732 Label miss; |
| 2733 |
| 2734 // Check that the maps haven't changed. |
| 2735 __ JumpIfSmi(a1, &miss); |
| 2736 CheckPrototypes(receiver, a1, holder, a3, t0, t1, name, &miss); |
| 2737 |
2736 { | 2738 { |
2737 FrameScope scope(masm, StackFrame::INTERNAL); | 2739 FrameScope scope(masm(), StackFrame::INTERNAL); |
2738 | 2740 |
2739 // Save value register, so we can restore it later. | 2741 // Save value register, so we can restore it later. |
2740 __ push(a0); | 2742 __ push(a0); |
2741 | 2743 |
2742 if (!setter.is_null()) { | 2744 // Call the JavaScript setter with the receiver and the value on the stack. |
2743 // Call the JavaScript setter with receiver and value on the stack. | 2745 __ push(a1); |
2744 __ push(a1); | 2746 __ push(a0); |
2745 __ push(a0); | 2747 ParameterCount actual(1); |
2746 ParameterCount actual(1); | 2748 __ InvokeFunction(setter, actual, CALL_FUNCTION, NullCallWrapper(), |
2747 __ InvokeFunction(setter, actual, CALL_FUNCTION, NullCallWrapper(), | 2749 CALL_AS_METHOD); |
2748 CALL_AS_METHOD); | |
2749 } else { | |
2750 // If we generate a global code snippet for deoptimization only, remember | |
2751 // the place to continue after deoptimization. | |
2752 masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset()); | |
2753 } | |
2754 | 2750 |
2755 // We have to return the passed value, not the return value of the setter. | 2751 // We have to return the passed value, not the return value of the setter. |
2756 __ pop(v0); | 2752 __ pop(v0); |
2757 | 2753 |
2758 // Restore context register. | 2754 // Restore context register. |
2759 __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 2755 __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
2760 } | 2756 } |
2761 __ Ret(); | 2757 __ Ret(); |
2762 } | |
2763 | |
2764 | |
2765 #undef __ | |
2766 #define __ ACCESS_MASM(masm()) | |
2767 | |
2768 | |
2769 Handle<Code> StoreStubCompiler::CompileStoreViaSetter( | |
2770 Handle<String> name, | |
2771 Handle<JSObject> receiver, | |
2772 Handle<JSObject> holder, | |
2773 Handle<JSFunction> setter) { | |
2774 // ----------- S t a t e ------------- | |
2775 // -- a0 : value | |
2776 // -- a1 : receiver | |
2777 // -- a2 : name | |
2778 // -- ra : return address | |
2779 // ----------------------------------- | |
2780 Label miss; | |
2781 | |
2782 // Check that the maps haven't changed. | |
2783 __ JumpIfSmi(a1, &miss); | |
2784 CheckPrototypes(receiver, a1, holder, a3, t0, t1, name, &miss); | |
2785 | |
2786 GenerateStoreViaSetter(masm(), setter); | |
2787 | 2758 |
2788 __ bind(&miss); | 2759 __ bind(&miss); |
2789 Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss(); | 2760 Handle<Code> ic = masm()->isolate()->builtins()->StoreIC_Miss(); |
2790 __ Jump(ic, RelocInfo::CODE_TARGET); | 2761 __ Jump(ic, RelocInfo::CODE_TARGET); |
2791 | 2762 |
2792 // Return the generated code. | 2763 // Return the generated code. |
2793 return GetCode(Code::CALLBACKS, name); | 2764 return GetCode(Code::CALLBACKS, name); |
2794 } | 2765 } |
2795 | 2766 |
2796 | 2767 |
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4815 __ Jump(ic_slow, RelocInfo::CODE_TARGET); | 4786 __ Jump(ic_slow, RelocInfo::CODE_TARGET); |
4816 } | 4787 } |
4817 } | 4788 } |
4818 | 4789 |
4819 | 4790 |
4820 #undef __ | 4791 #undef __ |
4821 | 4792 |
4822 } } // namespace v8::internal | 4793 } } // namespace v8::internal |
4823 | 4794 |
4824 #endif // V8_TARGET_ARCH_MIPS | 4795 #endif // V8_TARGET_ARCH_MIPS |
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