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Issue 148593004: A64: Synchronize with r18084. (Closed) Base URL: https://v8.googlecode.com/svn/branches/experimental/a64
Patch Set: Created 6 years, 10 months ago
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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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