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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_MIPS64 | 7 #if V8_TARGET_ARCH_MIPS64 |
8 | 8 |
9 // Note on Mips implementation: | 9 // Note on Mips implementation: |
10 // | 10 // |
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1260 } | 1260 } |
1261 | 1261 |
1262 | 1262 |
1263 void FullCodeGenerator::VisitForOfStatement(ForOfStatement* stmt) { | 1263 void FullCodeGenerator::VisitForOfStatement(ForOfStatement* stmt) { |
1264 Comment cmnt(masm_, "[ ForOfStatement"); | 1264 Comment cmnt(masm_, "[ ForOfStatement"); |
1265 SetStatementPosition(stmt); | 1265 SetStatementPosition(stmt); |
1266 | 1266 |
1267 Iteration loop_statement(this, stmt); | 1267 Iteration loop_statement(this, stmt); |
1268 increment_loop_depth(); | 1268 increment_loop_depth(); |
1269 | 1269 |
1270 // var iterable = subject | |
1271 VisitForAccumulatorValue(stmt->assign_iterable()); | |
1272 __ mov(a0, v0); | |
1273 | |
1274 // As with for-in, skip the loop if the iterator is null or undefined. | |
1275 __ LoadRoot(at, Heap::kUndefinedValueRootIndex); | |
1276 __ Branch(loop_statement.break_label(), eq, a0, Operand(at)); | |
1277 __ LoadRoot(at, Heap::kNullValueRootIndex); | |
1278 __ Branch(loop_statement.break_label(), eq, a0, Operand(at)); | |
1279 | |
1280 // var iterator = iterable[Symbol.iterator](); | 1270 // var iterator = iterable[Symbol.iterator](); |
1281 VisitForEffect(stmt->assign_iterator()); | 1271 VisitForEffect(stmt->assign_iterator()); |
1282 | 1272 |
1283 // Loop entry. | 1273 // Loop entry. |
1284 __ bind(loop_statement.continue_label()); | 1274 __ bind(loop_statement.continue_label()); |
1285 | 1275 |
1286 // result = iterator.next() | 1276 // result = iterator.next() |
1287 VisitForEffect(stmt->next_result()); | 1277 VisitForEffect(stmt->next_result()); |
1288 | 1278 |
1289 // if (result.done) break; | 1279 // if (result.done) break; |
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4892 Assembler::target_address_at(pc_immediate_load_address)) == | 4882 Assembler::target_address_at(pc_immediate_load_address)) == |
4893 reinterpret_cast<uint64_t>( | 4883 reinterpret_cast<uint64_t>( |
4894 isolate->builtins()->OsrAfterStackCheck()->entry())); | 4884 isolate->builtins()->OsrAfterStackCheck()->entry())); |
4895 return OSR_AFTER_STACK_CHECK; | 4885 return OSR_AFTER_STACK_CHECK; |
4896 } | 4886 } |
4897 | 4887 |
4898 | 4888 |
4899 } } // namespace v8::internal | 4889 } } // namespace v8::internal |
4900 | 4890 |
4901 #endif // V8_TARGET_ARCH_MIPS64 | 4891 #endif // V8_TARGET_ARCH_MIPS64 |
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