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Issue 501148: The number of heap slots stored in a scope includes the... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 11 years ago
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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. 1 // Copyright 2006-2009 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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167 frame_->Enter(); 167 frame_->Enter();
168 168
169 // Allocate space for locals and initialize them. 169 // Allocate space for locals and initialize them.
170 frame_->AllocateStackSlots(); 170 frame_->AllocateStackSlots();
171 // Initialize the function return target after the locals are set 171 // Initialize the function return target after the locals are set
172 // up, because it needs the expected frame height from the frame. 172 // up, because it needs the expected frame height from the frame.
173 function_return_.set_direction(JumpTarget::BIDIRECTIONAL); 173 function_return_.set_direction(JumpTarget::BIDIRECTIONAL);
174 function_return_is_shadowed_ = false; 174 function_return_is_shadowed_ = false;
175 175
176 // Allocate the local context if needed. 176 // Allocate the local context if needed.
177 int heap_slots = scope_->num_heap_slots(); 177 int heap_slots = scope_->num_heap_slots() - Context::MIN_CONTEXT_SLOTS;
178 if (heap_slots > 0) { 178 if (heap_slots > 0) {
179 Comment cmnt(masm_, "[ allocate local context"); 179 Comment cmnt(masm_, "[ allocate local context");
180 // Allocate local context. 180 // Allocate local context.
181 // Get outer context and create a new context based on it. 181 // Get outer context and create a new context based on it.
182 frame_->PushFunction(); 182 frame_->PushFunction();
183 Result context; 183 Result context;
184 if (heap_slots <= FastNewContextStub::kMaximumSlots) { 184 if (heap_slots <= FastNewContextStub::kMaximumSlots) {
185 FastNewContextStub stub(heap_slots); 185 FastNewContextStub stub(heap_slots);
186 context = frame_->CallStub(&stub, 1); 186 context = frame_->CallStub(&stub, 1);
187 } else { 187 } else {
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8937 __ add(Operand(dest), Immediate(2)); 8937 __ add(Operand(dest), Immediate(2));
8938 } 8938 }
8939 __ sub(Operand(count), Immediate(1)); 8939 __ sub(Operand(count), Immediate(1));
8940 __ j(not_zero, &loop); 8940 __ j(not_zero, &loop);
8941 } 8941 }
8942 8942
8943 8943
8944 #undef __ 8944 #undef __
8945 8945
8946 } } // namespace v8::internal 8946 } } // namespace v8::internal
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