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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 #include "src/bailout-reason.h" | 7 #include "src/bailout-reason.h" |
8 #include "src/code-stubs.h" | 8 #include "src/code-stubs.h" |
9 #include "src/field-index.h" | 9 #include "src/field-index.h" |
10 #include "src/hydrogen.h" | 10 #include "src/hydrogen.h" |
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2022 | 2022 |
2023 template <> | 2023 template <> |
2024 HValue* CodeStubGraphBuilder<MegamorphicLoadStub>::BuildCodeStub() { | 2024 HValue* CodeStubGraphBuilder<MegamorphicLoadStub>::BuildCodeStub() { |
2025 HValue* receiver = GetParameter(LoadDescriptor::kReceiverIndex); | 2025 HValue* receiver = GetParameter(LoadDescriptor::kReceiverIndex); |
2026 HValue* name = GetParameter(LoadDescriptor::kNameIndex); | 2026 HValue* name = GetParameter(LoadDescriptor::kNameIndex); |
2027 | 2027 |
2028 // We shouldn't generate this when FLAG_vector_ics is true because the | 2028 // We shouldn't generate this when FLAG_vector_ics is true because the |
2029 // megamorphic case is handled as part of the default stub. | 2029 // megamorphic case is handled as part of the default stub. |
2030 DCHECK(!FLAG_vector_ics); | 2030 DCHECK(!FLAG_vector_ics); |
2031 | 2031 |
| 2032 // This stub tail calls, and an erected frame presents complications we don't |
| 2033 // need. |
| 2034 info()->MarkMustNotHaveEagerFrame(); |
| 2035 |
2032 // Probe the stub cache. | 2036 // Probe the stub cache. |
2033 Add<HTailCallThroughMegamorphicCache>(receiver, name); | 2037 Add<HTailCallThroughMegamorphicCache>(receiver, name); |
2034 | 2038 |
2035 // We never continue. | 2039 // We never continue. |
2036 return graph()->GetConstant0(); | 2040 return graph()->GetConstant0(); |
2037 } | 2041 } |
2038 } } // namespace v8::internal | 2042 } } // namespace v8::internal |
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