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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_X64. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_X64. |
6 #if defined(TARGET_ARCH_X64) | 6 #if defined(TARGET_ARCH_X64) |
7 | 7 |
8 #include "vm/flow_graph_compiler.h" | 8 #include "vm/flow_graph_compiler.h" |
9 | 9 |
10 #include "vm/ast_printer.h" | 10 #include "vm/ast_printer.h" |
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1543 SortICDataByCount(ic_data, &sorted); | 1543 SortICDataByCount(ic_data, &sorted); |
1544 ASSERT(class_id_reg != R10); | 1544 ASSERT(class_id_reg != R10); |
1545 ASSERT(len > 0); // Why bother otherwise. | 1545 ASSERT(len > 0); // Why bother otherwise. |
1546 const Array& arguments_descriptor = | 1546 const Array& arguments_descriptor = |
1547 Array::ZoneHandle(ArgumentsDescriptor::New(argument_count, | 1547 Array::ZoneHandle(ArgumentsDescriptor::New(argument_count, |
1548 argument_names)); | 1548 argument_names)); |
1549 __ LoadObject(R10, arguments_descriptor, PP); | 1549 __ LoadObject(R10, arguments_descriptor, PP); |
1550 for (intptr_t i = 0; i < len; i++) { | 1550 for (intptr_t i = 0; i < len; i++) { |
1551 const bool is_last_check = (i == (len - 1)); | 1551 const bool is_last_check = (i == (len - 1)); |
1552 Label next_test; | 1552 Label next_test; |
1553 assembler()->cmpl(class_id_reg, Immediate(sorted[i].cid)); | 1553 __ cmpl(class_id_reg, Immediate(sorted[i].cid)); |
1554 if (is_last_check) { | 1554 if (is_last_check) { |
1555 assembler()->j(NOT_EQUAL, deopt); | 1555 __ j(NOT_EQUAL, deopt); |
1556 } else { | 1556 } else { |
1557 assembler()->j(NOT_EQUAL, &next_test); | 1557 __ j(NOT_EQUAL, &next_test); |
1558 } | 1558 } |
1559 // Do not use the code from the function, but let the code be patched so | 1559 // Do not use the code from the function, but let the code be patched so |
1560 // that we can record the outgoing edges to other code. | 1560 // that we can record the outgoing edges to other code. |
1561 GenerateDartCall(deopt_id, | 1561 GenerateDartCall(deopt_id, |
1562 token_index, | 1562 token_index, |
1563 &StubCode::CallStaticFunctionLabel(), | 1563 &StubCode::CallStaticFunctionLabel(), |
1564 PcDescriptors::kOptStaticCall, | 1564 PcDescriptors::kOptStaticCall, |
1565 locs); | 1565 locs); |
1566 const Function& function = *sorted[i].target; | 1566 const Function& function = *sorted[i].target; |
1567 AddStaticCallTarget(function); | 1567 AddStaticCallTarget(function); |
1568 __ Drop(argument_count); | 1568 __ Drop(argument_count); |
1569 if (!is_last_check) { | 1569 if (!is_last_check) { |
1570 assembler()->jmp(&match_found); | 1570 __ jmp(&match_found); |
1571 } | 1571 } |
1572 assembler()->Bind(&next_test); | 1572 __ Bind(&next_test); |
1573 } | 1573 } |
1574 assembler()->Bind(&match_found); | 1574 __ Bind(&match_found); |
1575 } | |
1576 | |
1577 | |
1578 Address FlowGraphCompiler::ElementAddressForIntIndex(intptr_t cid, | |
1579 intptr_t index_scale, | |
1580 Register array, | |
1581 intptr_t index) { | |
1582 const int64_t disp = | |
1583 static_cast<int64_t>(index) * index_scale + DataOffsetFor(cid); | |
1584 ASSERT(Utils::IsInt(32, disp)); | |
1585 return FieldAddress(array, static_cast<int32_t>(disp)); | |
1586 } | |
1587 | |
1588 | |
1589 static ScaleFactor ToScaleFactor(intptr_t index_scale) { | |
1590 // Note that index is expected smi-tagged, (i.e, times 2) for all arrays with | |
1591 // index scale factor > 1. E.g., for Uint8Array and OneByteString the index is | |
1592 // expected to be untagged before accessing. | |
1593 ASSERT(kSmiTagShift == 1); | |
1594 switch (index_scale) { | |
1595 case 1: return TIMES_1; | |
1596 case 2: return TIMES_1; | |
1597 case 4: return TIMES_2; | |
1598 case 8: return TIMES_4; | |
1599 case 16: return TIMES_8; | |
1600 default: | |
1601 UNREACHABLE(); | |
1602 return TIMES_1; | |
1603 } | |
1604 } | |
1605 | |
1606 | |
1607 Address FlowGraphCompiler::ElementAddressForRegIndex(intptr_t cid, | |
1608 intptr_t index_scale, | |
1609 Register array, | |
1610 Register index) { | |
1611 return FieldAddress(array, | |
1612 index, | |
1613 ToScaleFactor(index_scale), | |
1614 DataOffsetFor(cid)); | |
1615 } | |
1616 | |
1617 | |
1618 Address FlowGraphCompiler::ExternalElementAddressForIntIndex( | |
1619 intptr_t index_scale, | |
1620 Register array, | |
1621 intptr_t index) { | |
1622 return Address(array, index * index_scale); | |
1623 } | |
1624 | |
1625 | |
1626 Address FlowGraphCompiler::ExternalElementAddressForRegIndex( | |
1627 intptr_t index_scale, | |
1628 Register array, | |
1629 Register index) { | |
1630 return Address(array, index, ToScaleFactor(index_scale), 0); | |
1631 } | 1575 } |
1632 | 1576 |
1633 | 1577 |
1634 #undef __ | 1578 #undef __ |
1635 #define __ compiler_->assembler()-> | 1579 #define __ compiler_->assembler()-> |
1636 | 1580 |
1637 | 1581 |
1638 void ParallelMoveResolver::EmitMove(int index) { | 1582 void ParallelMoveResolver::EmitMove(int index) { |
1639 MoveOperands* move = moves_[index]; | 1583 MoveOperands* move = moves_[index]; |
1640 const Location source = move->src(); | 1584 const Location source = move->src(); |
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1841 __ movups(reg, Address(RSP, 0)); | 1785 __ movups(reg, Address(RSP, 0)); |
1842 __ AddImmediate(RSP, Immediate(kFpuRegisterSize), PP); | 1786 __ AddImmediate(RSP, Immediate(kFpuRegisterSize), PP); |
1843 } | 1787 } |
1844 | 1788 |
1845 | 1789 |
1846 #undef __ | 1790 #undef __ |
1847 | 1791 |
1848 } // namespace dart | 1792 } // namespace dart |
1849 | 1793 |
1850 #endif // defined TARGET_ARCH_X64 | 1794 #endif // defined TARGET_ARCH_X64 |
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