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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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| 1628 __ push(r1); | 1628 __ push(r1); |
| 1629 } else { | 1629 } else { |
| 1630 VisitForStackValue(expression); | 1630 VisitForStackValue(expression); |
| 1631 } | 1631 } |
| 1632 } | 1632 } |
| 1633 | 1633 |
| 1634 | 1634 |
| 1635 void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) { | 1635 void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) { |
| 1636 Comment cmnt(masm_, "[ ObjectLiteral"); | 1636 Comment cmnt(masm_, "[ ObjectLiteral"); |
| 1637 | 1637 |
| 1638 int depth = 1; | 1638 expr->BuildConstantProperties(isolate()); |
| 1639 expr->BuildConstantProperties(isolate(), &depth); | |
| 1640 Handle<FixedArray> constant_properties = expr->constant_properties(); | 1639 Handle<FixedArray> constant_properties = expr->constant_properties(); |
| 1641 __ ldr(r3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); | 1640 __ ldr(r3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
| 1642 __ ldr(r3, FieldMemOperand(r3, JSFunction::kLiteralsOffset)); | 1641 __ ldr(r3, FieldMemOperand(r3, JSFunction::kLiteralsOffset)); |
| 1643 __ mov(r2, Operand(Smi::FromInt(expr->literal_index()))); | 1642 __ mov(r2, Operand(Smi::FromInt(expr->literal_index()))); |
| 1644 __ mov(r1, Operand(constant_properties)); | 1643 __ mov(r1, Operand(constant_properties)); |
| 1645 int flags = expr->fast_elements() | 1644 int flags = expr->fast_elements() |
| 1646 ? ObjectLiteral::kFastElements | 1645 ? ObjectLiteral::kFastElements |
| 1647 : ObjectLiteral::kNoFlags; | 1646 : ObjectLiteral::kNoFlags; |
| 1648 flags |= expr->has_function() | 1647 flags |= expr->has_function() |
| 1649 ? ObjectLiteral::kHasFunction | 1648 ? ObjectLiteral::kHasFunction |
| 1650 : ObjectLiteral::kNoFlags; | 1649 : ObjectLiteral::kNoFlags; |
| 1651 __ mov(r0, Operand(Smi::FromInt(flags))); | 1650 __ mov(r0, Operand(Smi::FromInt(flags))); |
| 1652 int properties_count = constant_properties->length() / 2; | 1651 int properties_count = constant_properties->length() / 2; |
| 1653 if ((FLAG_track_double_fields && expr->may_store_doubles()) || | 1652 if ((FLAG_track_double_fields && expr->may_store_doubles()) || |
| 1654 depth > 1 || Serializer::enabled() || | 1653 expr->depth() > 1 || Serializer::enabled() || |
| 1655 flags != ObjectLiteral::kFastElements || | 1654 flags != ObjectLiteral::kFastElements || |
| 1656 properties_count > FastCloneShallowObjectStub::kMaximumClonedProperties) { | 1655 properties_count > FastCloneShallowObjectStub::kMaximumClonedProperties) { |
| 1657 __ Push(r3, r2, r1, r0); | 1656 __ Push(r3, r2, r1, r0); |
| 1658 __ CallRuntime(Runtime::kCreateObjectLiteral, 4); | 1657 __ CallRuntime(Runtime::kCreateObjectLiteral, 4); |
| 1659 } else { | 1658 } else { |
| 1660 FastCloneShallowObjectStub stub(properties_count); | 1659 FastCloneShallowObjectStub stub(properties_count); |
| 1661 __ CallStub(&stub); | 1660 __ CallStub(&stub); |
| 1662 } | 1661 } |
| 1663 | 1662 |
| 1664 // If result_saved is true the result is on top of the stack. If | 1663 // If result_saved is true the result is on top of the stack. If |
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| 1763 context()->PlugTOS(); | 1762 context()->PlugTOS(); |
| 1764 } else { | 1763 } else { |
| 1765 context()->Plug(r0); | 1764 context()->Plug(r0); |
| 1766 } | 1765 } |
| 1767 } | 1766 } |
| 1768 | 1767 |
| 1769 | 1768 |
| 1770 void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) { | 1769 void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) { |
| 1771 Comment cmnt(masm_, "[ ArrayLiteral"); | 1770 Comment cmnt(masm_, "[ ArrayLiteral"); |
| 1772 | 1771 |
| 1773 int depth = 1; | 1772 expr->BuildConstantElements(isolate()); |
| 1774 expr->BuildConstantElements(isolate(), &depth); | 1773 int flags = expr->depth() == 1 |
| 1774 ? ArrayLiteral::kShallowElements |
| 1775 : ArrayLiteral::kNoFlags; |
| 1776 |
| 1775 ZoneList<Expression*>* subexprs = expr->values(); | 1777 ZoneList<Expression*>* subexprs = expr->values(); |
| 1776 int length = subexprs->length(); | 1778 int length = subexprs->length(); |
| 1777 Handle<FixedArray> constant_elements = expr->constant_elements(); | 1779 Handle<FixedArray> constant_elements = expr->constant_elements(); |
| 1778 ASSERT_EQ(2, constant_elements->length()); | 1780 ASSERT_EQ(2, constant_elements->length()); |
| 1779 ElementsKind constant_elements_kind = | 1781 ElementsKind constant_elements_kind = |
| 1780 static_cast<ElementsKind>(Smi::cast(constant_elements->get(0))->value()); | 1782 static_cast<ElementsKind>(Smi::cast(constant_elements->get(0))->value()); |
| 1781 bool has_fast_elements = IsFastObjectElementsKind(constant_elements_kind); | 1783 bool has_fast_elements = IsFastObjectElementsKind(constant_elements_kind); |
| 1782 Handle<FixedArrayBase> constant_elements_values( | 1784 Handle<FixedArrayBase> constant_elements_values( |
| 1783 FixedArrayBase::cast(constant_elements->get(1))); | 1785 FixedArrayBase::cast(constant_elements->get(1))); |
| 1784 | 1786 |
| 1785 __ ldr(r3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); | 1787 __ ldr(r3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset)); |
| 1786 __ ldr(r3, FieldMemOperand(r3, JSFunction::kLiteralsOffset)); | 1788 __ ldr(r3, FieldMemOperand(r3, JSFunction::kLiteralsOffset)); |
| 1787 __ mov(r2, Operand(Smi::FromInt(expr->literal_index()))); | 1789 __ mov(r2, Operand(Smi::FromInt(expr->literal_index()))); |
| 1788 __ mov(r1, Operand(constant_elements)); | 1790 __ mov(r1, Operand(constant_elements)); |
| 1789 if (has_fast_elements && constant_elements_values->map() == | 1791 if (has_fast_elements && constant_elements_values->map() == |
| 1790 isolate()->heap()->fixed_cow_array_map()) { | 1792 isolate()->heap()->fixed_cow_array_map()) { |
| 1791 FastCloneShallowArrayStub stub( | 1793 FastCloneShallowArrayStub stub( |
| 1792 FastCloneShallowArrayStub::COPY_ON_WRITE_ELEMENTS, | 1794 FastCloneShallowArrayStub::COPY_ON_WRITE_ELEMENTS, |
| 1793 DONT_TRACK_ALLOCATION_SITE, | 1795 DONT_TRACK_ALLOCATION_SITE, |
| 1794 length); | 1796 length); |
| 1795 __ CallStub(&stub); | 1797 __ CallStub(&stub); |
| 1796 __ IncrementCounter( | 1798 __ IncrementCounter( |
| 1797 isolate()->counters()->cow_arrays_created_stub(), 1, r1, r2); | 1799 isolate()->counters()->cow_arrays_created_stub(), 1, r1, r2); |
| 1798 } else if (depth > 1 || Serializer::enabled() || | 1800 } else if (expr->depth() > 1 || Serializer::enabled() || |
| 1799 length > FastCloneShallowArrayStub::kMaximumClonedLength) { | 1801 length > FastCloneShallowArrayStub::kMaximumClonedLength) { |
| 1800 __ Push(r3, r2, r1); | 1802 __ mov(r0, Operand(Smi::FromInt(flags))); |
| 1801 __ CallRuntime(Runtime::kCreateArrayLiteral, 3); | 1803 __ Push(r3, r2, r1, r0); |
| 1804 __ CallRuntime(Runtime::kCreateArrayLiteral, 4); |
| 1802 } else { | 1805 } else { |
| 1803 ASSERT(IsFastSmiOrObjectElementsKind(constant_elements_kind) || | 1806 ASSERT(IsFastSmiOrObjectElementsKind(constant_elements_kind) || |
| 1804 FLAG_smi_only_arrays); | 1807 FLAG_smi_only_arrays); |
| 1805 FastCloneShallowArrayStub::Mode mode = | 1808 FastCloneShallowArrayStub::Mode mode = |
| 1806 FastCloneShallowArrayStub::CLONE_ANY_ELEMENTS; | 1809 FastCloneShallowArrayStub::CLONE_ANY_ELEMENTS; |
| 1807 AllocationSiteMode allocation_site_mode = FLAG_track_allocation_sites | 1810 AllocationSiteMode allocation_site_mode = FLAG_track_allocation_sites |
| 1808 ? TRACK_ALLOCATION_SITE : DONT_TRACK_ALLOCATION_SITE; | 1811 ? TRACK_ALLOCATION_SITE : DONT_TRACK_ALLOCATION_SITE; |
| 1809 | 1812 |
| 1810 if (has_fast_elements) { | 1813 if (has_fast_elements) { |
| 1811 mode = FastCloneShallowArrayStub::CLONE_ELEMENTS; | 1814 mode = FastCloneShallowArrayStub::CLONE_ELEMENTS; |
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| 3342 VisitForStackValue(args->at(2)); | 3345 VisitForStackValue(args->at(2)); |
| 3343 __ CallRuntime(Runtime::kLog, 2); | 3346 __ CallRuntime(Runtime::kLog, 2); |
| 3344 } | 3347 } |
| 3345 | 3348 |
| 3346 // Finally, we're expected to leave a value on the top of the stack. | 3349 // Finally, we're expected to leave a value on the top of the stack. |
| 3347 __ LoadRoot(r0, Heap::kUndefinedValueRootIndex); | 3350 __ LoadRoot(r0, Heap::kUndefinedValueRootIndex); |
| 3348 context()->Plug(r0); | 3351 context()->Plug(r0); |
| 3349 } | 3352 } |
| 3350 | 3353 |
| 3351 | 3354 |
| 3352 void FullCodeGenerator::EmitRandomHeapNumber(CallRuntime* expr) { | |
| 3353 ASSERT(expr->arguments()->length() == 0); | |
| 3354 Label slow_allocate_heapnumber; | |
| 3355 Label heapnumber_allocated; | |
| 3356 | |
| 3357 __ LoadRoot(r6, Heap::kHeapNumberMapRootIndex); | |
| 3358 __ AllocateHeapNumber(r4, r1, r2, r6, &slow_allocate_heapnumber); | |
| 3359 __ jmp(&heapnumber_allocated); | |
| 3360 | |
| 3361 __ bind(&slow_allocate_heapnumber); | |
| 3362 // Allocate a heap number. | |
| 3363 __ CallRuntime(Runtime::kNumberAlloc, 0); | |
| 3364 __ mov(r4, Operand(r0)); | |
| 3365 | |
| 3366 __ bind(&heapnumber_allocated); | |
| 3367 | |
| 3368 // Convert 32 random bits in r0 to 0.(32 random bits) in a double | |
| 3369 // by computing: | |
| 3370 // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)). | |
| 3371 __ PrepareCallCFunction(1, r0); | |
| 3372 __ ldr(r0, | |
| 3373 ContextOperand(context_register(), Context::GLOBAL_OBJECT_INDEX)); | |
| 3374 __ ldr(r0, FieldMemOperand(r0, GlobalObject::kNativeContextOffset)); | |
| 3375 __ CallCFunction(ExternalReference::random_uint32_function(isolate()), 1); | |
| 3376 | |
| 3377 // 0x41300000 is the top half of 1.0 x 2^20 as a double. | |
| 3378 // Create this constant using mov/orr to avoid PC relative load. | |
| 3379 __ mov(r1, Operand(0x41000000)); | |
| 3380 __ orr(r1, r1, Operand(0x300000)); | |
| 3381 // Move 0x41300000xxxxxxxx (x = random bits) to VFP. | |
| 3382 __ vmov(d7, r0, r1); | |
| 3383 // Move 0x4130000000000000 to VFP. | |
| 3384 __ mov(r0, Operand::Zero()); | |
| 3385 __ vmov(d8, r0, r1); | |
| 3386 // Subtract and store the result in the heap number. | |
| 3387 __ vsub(d7, d7, d8); | |
| 3388 __ sub(r0, r4, Operand(kHeapObjectTag)); | |
| 3389 __ vstr(d7, r0, HeapNumber::kValueOffset); | |
| 3390 __ mov(r0, r4); | |
| 3391 | |
| 3392 context()->Plug(r0); | |
| 3393 } | |
| 3394 | |
| 3395 | |
| 3396 void FullCodeGenerator::EmitSubString(CallRuntime* expr) { | 3355 void FullCodeGenerator::EmitSubString(CallRuntime* expr) { |
| 3397 // Load the arguments on the stack and call the stub. | 3356 // Load the arguments on the stack and call the stub. |
| 3398 SubStringStub stub; | 3357 SubStringStub stub; |
| 3399 ZoneList<Expression*>* args = expr->arguments(); | 3358 ZoneList<Expression*>* args = expr->arguments(); |
| 3400 ASSERT(args->length() == 3); | 3359 ASSERT(args->length() == 3); |
| 3401 VisitForStackValue(args->at(0)); | 3360 VisitForStackValue(args->at(0)); |
| 3402 VisitForStackValue(args->at(1)); | 3361 VisitForStackValue(args->at(1)); |
| 3403 VisitForStackValue(args->at(2)); | 3362 VisitForStackValue(args->at(2)); |
| 3404 __ CallStub(&stub); | 3363 __ CallStub(&stub); |
| 3405 context()->Plug(r0); | 3364 context()->Plug(r0); |
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| 4965 ASSERT(Memory::uint32_at(interrupt_address_pointer) == | 4924 ASSERT(Memory::uint32_at(interrupt_address_pointer) == |
| 4966 reinterpret_cast<uint32_t>( | 4925 reinterpret_cast<uint32_t>( |
| 4967 isolate->builtins()->OsrAfterStackCheck()->entry())); | 4926 isolate->builtins()->OsrAfterStackCheck()->entry())); |
| 4968 return OSR_AFTER_STACK_CHECK; | 4927 return OSR_AFTER_STACK_CHECK; |
| 4969 } | 4928 } |
| 4970 | 4929 |
| 4971 | 4930 |
| 4972 } } // namespace v8::internal | 4931 } } // namespace v8::internal |
| 4973 | 4932 |
| 4974 #endif // V8_TARGET_ARCH_ARM | 4933 #endif // V8_TARGET_ARCH_ARM |
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