OLD | NEW |
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" | 5 #include "vm/globals.h" |
6 #if defined(TARGET_ARCH_IA32) | 6 #if defined(TARGET_ARCH_IA32) |
7 | 7 |
8 #include "vm/assembler.h" | 8 #include "vm/assembler.h" |
9 #include "vm/compiler.h" | 9 #include "vm/compiler.h" |
10 #include "vm/dart_entry.h" | 10 #include "vm/dart_entry.h" |
(...skipping 1414 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1425 // Check that the IC data array has NumberOfArgumentsChecked() == num_args. | 1425 // Check that the IC data array has NumberOfArgumentsChecked() == num_args. |
1426 // 'num_args_tested' is stored as an untagged int. | 1426 // 'num_args_tested' is stored as an untagged int. |
1427 __ movl(EBX, FieldAddress(ECX, ICData::num_args_tested_offset())); | 1427 __ movl(EBX, FieldAddress(ECX, ICData::num_args_tested_offset())); |
1428 __ cmpl(EBX, Immediate(num_args)); | 1428 __ cmpl(EBX, Immediate(num_args)); |
1429 __ j(EQUAL, &ok, Assembler::kNearJump); | 1429 __ j(EQUAL, &ok, Assembler::kNearJump); |
1430 __ Stop("Incorrect stub for IC data"); | 1430 __ Stop("Incorrect stub for IC data"); |
1431 __ Bind(&ok); | 1431 __ Bind(&ok); |
1432 } | 1432 } |
1433 #endif // DEBUG | 1433 #endif // DEBUG |
1434 | 1434 |
| 1435 // Check single stepping. |
| 1436 Label not_stepping; |
| 1437 __ movl(EAX, FieldAddress(CTX, Context::isolate_offset())); |
| 1438 __ movzxb(EAX, Address(EAX, Isolate::single_step_offset())); |
| 1439 __ cmpl(EAX, Immediate(0)); |
| 1440 __ j(EQUAL, ¬_stepping, Assembler::kNearJump); |
| 1441 |
| 1442 __ EnterStubFrame(); |
| 1443 __ pushl(ECX); |
| 1444 __ CallRuntime(kSingleStepHandlerRuntimeEntry); |
| 1445 __ popl(ECX); |
| 1446 __ LeaveFrame(); |
| 1447 __ Bind(¬_stepping); |
| 1448 |
1435 // Load arguments descriptor into EDX. | 1449 // Load arguments descriptor into EDX. |
1436 __ movl(EDX, FieldAddress(ECX, ICData::arguments_descriptor_offset())); | 1450 __ movl(EDX, FieldAddress(ECX, ICData::arguments_descriptor_offset())); |
1437 // Loop that checks if there is an IC data match. | 1451 // Loop that checks if there is an IC data match. |
1438 Label loop, update, test, found, get_class_id_as_smi; | 1452 Label loop, update, test, found, get_class_id_as_smi; |
1439 // ECX: IC data object (preserved). | 1453 // ECX: IC data object (preserved). |
1440 __ movl(EBX, FieldAddress(ECX, ICData::ic_data_offset())); | 1454 __ movl(EBX, FieldAddress(ECX, ICData::ic_data_offset())); |
1441 // EBX: ic_data_array with check entries: classes and target functions. | 1455 // EBX: ic_data_array with check entries: classes and target functions. |
1442 __ leal(EBX, FieldAddress(EBX, Array::data_offset())); | 1456 __ leal(EBX, FieldAddress(EBX, Array::data_offset())); |
1443 // EBX: points directly to the first ic data array element. | 1457 // EBX: points directly to the first ic data array element. |
1444 | 1458 |
(...skipping 203 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1648 // Check that the IC data array has NumberOfArgumentsChecked() == 0. | 1662 // Check that the IC data array has NumberOfArgumentsChecked() == 0. |
1649 // 'num_args_tested' is stored as an untagged int. | 1663 // 'num_args_tested' is stored as an untagged int. |
1650 __ movl(EBX, FieldAddress(ECX, ICData::num_args_tested_offset())); | 1664 __ movl(EBX, FieldAddress(ECX, ICData::num_args_tested_offset())); |
1651 __ cmpl(EBX, Immediate(0)); | 1665 __ cmpl(EBX, Immediate(0)); |
1652 __ j(EQUAL, &ok, Assembler::kNearJump); | 1666 __ j(EQUAL, &ok, Assembler::kNearJump); |
1653 __ Stop("Incorrect IC data for unoptimized static call"); | 1667 __ Stop("Incorrect IC data for unoptimized static call"); |
1654 __ Bind(&ok); | 1668 __ Bind(&ok); |
1655 } | 1669 } |
1656 #endif // DEBUG | 1670 #endif // DEBUG |
1657 | 1671 |
| 1672 // Check single stepping. |
| 1673 Label not_stepping; |
| 1674 __ movl(EAX, FieldAddress(CTX, Context::isolate_offset())); |
| 1675 __ movzxb(EAX, Address(EAX, Isolate::single_step_offset())); |
| 1676 __ cmpl(EAX, Immediate(0)); |
| 1677 __ j(EQUAL, ¬_stepping, Assembler::kNearJump); |
| 1678 |
| 1679 __ EnterStubFrame(); |
| 1680 __ pushl(ECX); |
| 1681 __ CallRuntime(kSingleStepHandlerRuntimeEntry); |
| 1682 __ popl(ECX); |
| 1683 __ LeaveFrame(); |
| 1684 __ Bind(¬_stepping); |
| 1685 |
1658 // ECX: IC data object (preserved). | 1686 // ECX: IC data object (preserved). |
1659 __ movl(EBX, FieldAddress(ECX, ICData::ic_data_offset())); | 1687 __ movl(EBX, FieldAddress(ECX, ICData::ic_data_offset())); |
1660 // EBX: ic_data_array with entries: target functions and count. | 1688 // EBX: ic_data_array with entries: target functions and count. |
1661 __ leal(EBX, FieldAddress(EBX, Array::data_offset())); | 1689 __ leal(EBX, FieldAddress(EBX, Array::data_offset())); |
1662 // EBX: points directly to the first ic data array element. | 1690 // EBX: points directly to the first ic data array element. |
1663 const intptr_t target_offset = ICData::TargetIndexFor(0) * kWordSize; | 1691 const intptr_t target_offset = ICData::TargetIndexFor(0) * kWordSize; |
1664 const intptr_t count_offset = ICData::CountIndexFor(0) * kWordSize; | 1692 const intptr_t count_offset = ICData::CountIndexFor(0) * kWordSize; |
1665 | 1693 |
1666 // Increment count for this call. | 1694 // Increment count for this call. |
1667 Label increment_done; | 1695 Label increment_done; |
(...skipping 458 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
2126 } | 2154 } |
2127 | 2155 |
2128 | 2156 |
2129 // Called only from unoptimized code. All relevant registers have been saved. | 2157 // Called only from unoptimized code. All relevant registers have been saved. |
2130 // TOS + 0: return address | 2158 // TOS + 0: return address |
2131 // TOS + 1: right argument. | 2159 // TOS + 1: right argument. |
2132 // TOS + 2: left argument. | 2160 // TOS + 2: left argument. |
2133 // Returns ZF set. | 2161 // Returns ZF set. |
2134 void StubCode::GenerateUnoptimizedIdenticalWithNumberCheckStub( | 2162 void StubCode::GenerateUnoptimizedIdenticalWithNumberCheckStub( |
2135 Assembler* assembler) { | 2163 Assembler* assembler) { |
| 2164 // Check single stepping. |
| 2165 Label not_stepping; |
| 2166 __ movl(EAX, FieldAddress(CTX, Context::isolate_offset())); |
| 2167 __ movzxb(EAX, Address(EAX, Isolate::single_step_offset())); |
| 2168 __ cmpl(EAX, Immediate(0)); |
| 2169 __ j(EQUAL, ¬_stepping, Assembler::kNearJump); |
| 2170 |
| 2171 __ EnterStubFrame(); |
| 2172 __ CallRuntime(kSingleStepHandlerRuntimeEntry); |
| 2173 __ LeaveFrame(); |
| 2174 __ Bind(¬_stepping); |
| 2175 |
2136 const Register left = EAX; | 2176 const Register left = EAX; |
2137 const Register right = EDX; | 2177 const Register right = EDX; |
2138 const Register temp = ECX; | 2178 const Register temp = ECX; |
2139 __ movl(left, Address(ESP, 2 * kWordSize)); | 2179 __ movl(left, Address(ESP, 2 * kWordSize)); |
2140 __ movl(right, Address(ESP, 1 * kWordSize)); | 2180 __ movl(right, Address(ESP, 1 * kWordSize)); |
2141 GenerateIdenticalWithNumberCheckStub(assembler, left, right, temp); | 2181 GenerateIdenticalWithNumberCheckStub(assembler, left, right, temp); |
2142 __ ret(); | 2182 __ ret(); |
2143 } | 2183 } |
2144 | 2184 |
2145 | 2185 |
(...skipping 17 matching lines...) Expand all Loading... |
2163 GenerateIdenticalWithNumberCheckStub(assembler, left, right, temp); | 2203 GenerateIdenticalWithNumberCheckStub(assembler, left, right, temp); |
2164 __ popl(temp); | 2204 __ popl(temp); |
2165 __ popl(right); | 2205 __ popl(right); |
2166 __ popl(left); | 2206 __ popl(left); |
2167 __ ret(); | 2207 __ ret(); |
2168 } | 2208 } |
2169 | 2209 |
2170 } // namespace dart | 2210 } // namespace dart |
2171 | 2211 |
2172 #endif // defined TARGET_ARCH_IA32 | 2212 #endif // defined TARGET_ARCH_IA32 |
OLD | NEW |