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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/full-codegen/full-codegen.h" | 5 #include "src/full-codegen/full-codegen.h" |
6 | 6 |
7 #include "src/ast/ast-numbering.h" | 7 #include "src/ast/ast-numbering.h" |
8 #include "src/ast/ast.h" | 8 #include "src/ast/ast.h" |
9 #include "src/ast/prettyprinter.h" | 9 #include "src/ast/prettyprinter.h" |
10 #include "src/ast/scopeinfo.h" | 10 #include "src/ast/scopeinfo.h" |
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1025 current->AsTryFinally()->deferred_commands()->RecordReturn(); | 1025 current->AsTryFinally()->deferred_commands()->RecordReturn(); |
1026 return; | 1026 return; |
1027 } | 1027 } |
1028 current = current->Exit(&context_length); | 1028 current = current->Exit(&context_length); |
1029 } | 1029 } |
1030 EmitReturnSequence(); | 1030 EmitReturnSequence(); |
1031 } | 1031 } |
1032 | 1032 |
1033 void FullCodeGenerator::EmitNewClosure(Handle<SharedFunctionInfo> info, | 1033 void FullCodeGenerator::EmitNewClosure(Handle<SharedFunctionInfo> info, |
1034 bool pretenure) { | 1034 bool pretenure) { |
1035 // Use the fast case closure allocation code that allocates in new | 1035 // If we're running with the --always-opt or the --prepare-always-opt |
1036 // space for nested functions that don't need literals cloning. If | |
1037 // we're running with the --always-opt or the --prepare-always-opt | |
1038 // flag, we need to use the runtime function so that the new function | 1036 // flag, we need to use the runtime function so that the new function |
1039 // we are creating here gets a chance to have its code optimized and | 1037 // we are creating here gets a chance to have its code optimized and |
1040 // doesn't just get a copy of the existing unoptimized code. | 1038 // doesn't just get a copy of the existing unoptimized code. |
1041 if (!FLAG_always_opt && | 1039 if (!FLAG_always_opt && !FLAG_prepare_always_opt && !pretenure && |
1042 !FLAG_prepare_always_opt && | 1040 scope()->is_function_scope()) { |
1043 !pretenure && | |
1044 scope()->is_function_scope() && | |
1045 info->num_literals() == 0) { | |
1046 FastNewClosureStub stub(isolate(), info->language_mode(), info->kind()); | 1041 FastNewClosureStub stub(isolate(), info->language_mode(), info->kind()); |
1047 __ Move(stub.GetCallInterfaceDescriptor().GetRegisterParameter(0), info); | 1042 __ Move(stub.GetCallInterfaceDescriptor().GetRegisterParameter(0), info); |
1048 __ CallStub(&stub); | 1043 __ CallStub(&stub); |
1049 } else { | 1044 } else { |
1050 __ Push(info); | 1045 __ Push(info); |
1051 __ CallRuntime(pretenure ? Runtime::kNewClosure_Tenured | 1046 __ CallRuntime(pretenure ? Runtime::kNewClosure_Tenured |
1052 : Runtime::kNewClosure); | 1047 : Runtime::kNewClosure); |
1053 } | 1048 } |
1054 context()->Plug(result_register()); | 1049 context()->Plug(result_register()); |
1055 } | 1050 } |
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1978 return var->scope()->is_nonlinear() || | 1973 return var->scope()->is_nonlinear() || |
1979 var->initializer_position() >= proxy->position(); | 1974 var->initializer_position() >= proxy->position(); |
1980 } | 1975 } |
1981 | 1976 |
1982 | 1977 |
1983 #undef __ | 1978 #undef __ |
1984 | 1979 |
1985 | 1980 |
1986 } // namespace internal | 1981 } // namespace internal |
1987 } // namespace v8 | 1982 } // namespace v8 |
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