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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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1564 index.translate(holder), Representation::Tagged()); | 1564 index.translate(holder), Representation::Tagged()); |
1565 GenerateJumpFunction(object, r1, &miss); | 1565 GenerateJumpFunction(object, r1, &miss); |
1566 | 1566 |
1567 HandlerFrontendFooter(&miss); | 1567 HandlerFrontendFooter(&miss); |
1568 | 1568 |
1569 // Return the generated code. | 1569 // Return the generated code. |
1570 return GetCode(Code::FAST, name); | 1570 return GetCode(Code::FAST, name); |
1571 } | 1571 } |
1572 | 1572 |
1573 | 1573 |
| 1574 Handle<Code> CallStubCompiler::CompileArrayPopCall( |
| 1575 Handle<Object> object, |
| 1576 Handle<JSObject> holder, |
| 1577 Handle<Cell> cell, |
| 1578 Handle<JSFunction> function, |
| 1579 Handle<String> name, |
| 1580 Code::StubType type) { |
| 1581 // If object is not an array or is observed or sealed, bail out to regular |
| 1582 // call. |
| 1583 if (!object->IsJSArray() || |
| 1584 !cell.is_null() || |
| 1585 Handle<JSArray>::cast(object)->map()->is_observed() || |
| 1586 !Handle<JSArray>::cast(object)->map()->is_extensible()) { |
| 1587 return Handle<Code>::null(); |
| 1588 } |
| 1589 |
| 1590 Label miss, return_undefined, call_builtin; |
| 1591 Register receiver = r0; |
| 1592 Register scratch = r1; |
| 1593 Register elements = r3; |
| 1594 |
| 1595 HandlerFrontendHeader(object, holder, name, RECEIVER_MAP_CHECK, &miss); |
| 1596 |
| 1597 // Get the elements array of the object. |
| 1598 __ ldr(elements, FieldMemOperand(receiver, JSArray::kElementsOffset)); |
| 1599 |
| 1600 // Check that the elements are in fast mode and writable. |
| 1601 __ CheckMap(elements, |
| 1602 scratch, |
| 1603 Heap::kFixedArrayMapRootIndex, |
| 1604 &call_builtin, |
| 1605 DONT_DO_SMI_CHECK); |
| 1606 |
| 1607 // Get the array's length into r4 and calculate new length. |
| 1608 __ ldr(r4, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1609 __ sub(r4, r4, Operand(Smi::FromInt(1)), SetCC); |
| 1610 __ b(lt, &return_undefined); |
| 1611 |
| 1612 // Get the last element. |
| 1613 __ LoadRoot(r6, Heap::kTheHoleValueRootIndex); |
| 1614 // We can't address the last element in one operation. Compute the more |
| 1615 // expensive shift first, and use an offset later on. |
| 1616 __ add(elements, elements, Operand::PointerOffsetFromSmiKey(r4)); |
| 1617 __ ldr(scratch, FieldMemOperand(elements, FixedArray::kHeaderSize)); |
| 1618 __ cmp(scratch, r6); |
| 1619 __ b(eq, &call_builtin); |
| 1620 |
| 1621 // Set the array's length. |
| 1622 __ str(r4, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1623 |
| 1624 // Fill with the hole. |
| 1625 __ str(r6, FieldMemOperand(elements, FixedArray::kHeaderSize)); |
| 1626 const int argc = arguments().immediate(); |
| 1627 __ Drop(argc + 1); |
| 1628 __ mov(r0, scratch); |
| 1629 __ Ret(); |
| 1630 |
| 1631 __ bind(&return_undefined); |
| 1632 __ LoadRoot(r0, Heap::kUndefinedValueRootIndex); |
| 1633 __ Drop(argc + 1); |
| 1634 __ Ret(); |
| 1635 |
| 1636 __ bind(&call_builtin); |
| 1637 __ TailCallExternalReference( |
| 1638 ExternalReference(Builtins::c_ArrayPop, isolate()), argc + 1, 1); |
| 1639 |
| 1640 HandlerFrontendFooter(&miss); |
| 1641 |
| 1642 // Return the generated code. |
| 1643 return GetCode(type, name); |
| 1644 } |
| 1645 |
| 1646 |
1574 Handle<Code> CallStubCompiler::CompileFastApiCall( | 1647 Handle<Code> CallStubCompiler::CompileFastApiCall( |
1575 const CallOptimization& optimization, | 1648 const CallOptimization& optimization, |
1576 Handle<Object> object, | 1649 Handle<Object> object, |
1577 Handle<JSObject> holder, | 1650 Handle<JSObject> holder, |
1578 Handle<Cell> cell, | 1651 Handle<Cell> cell, |
1579 Handle<JSFunction> function, | 1652 Handle<JSFunction> function, |
1580 Handle<String> name) { | 1653 Handle<String> name) { |
1581 Counters* counters = isolate()->counters(); | 1654 Counters* counters = isolate()->counters(); |
1582 | 1655 |
1583 ASSERT(optimization.is_simple_api_call()); | 1656 ASSERT(optimization.is_simple_api_call()); |
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2171 // ----------------------------------- | 2244 // ----------------------------------- |
2172 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); | 2245 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); |
2173 } | 2246 } |
2174 | 2247 |
2175 | 2248 |
2176 #undef __ | 2249 #undef __ |
2177 | 2250 |
2178 } } // namespace v8::internal | 2251 } } // namespace v8::internal |
2179 | 2252 |
2180 #endif // V8_TARGET_ARCH_ARM | 2253 #endif // V8_TARGET_ARCH_ARM |
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