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Issue 7003058: A collection of context-related refactoring changes. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 9 years, 6 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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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168 // Possibly allocate a local context. 168 // Possibly allocate a local context.
169 int heap_slots = scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; 169 int heap_slots = scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS;
170 if (heap_slots > 0) { 170 if (heap_slots > 0) {
171 Comment cmnt(masm_, "[ Allocate local context"); 171 Comment cmnt(masm_, "[ Allocate local context");
172 // Argument to NewContext is the function, which is still in rdi. 172 // Argument to NewContext is the function, which is still in rdi.
173 __ push(rdi); 173 __ push(rdi);
174 if (heap_slots <= FastNewContextStub::kMaximumSlots) { 174 if (heap_slots <= FastNewContextStub::kMaximumSlots) {
175 FastNewContextStub stub(heap_slots); 175 FastNewContextStub stub(heap_slots);
176 __ CallStub(&stub); 176 __ CallStub(&stub);
177 } else { 177 } else {
178 __ CallRuntime(Runtime::kNewContext, 1); 178 __ CallRuntime(Runtime::kNewFunctionContext, 1);
179 } 179 }
180 function_in_register = false; 180 function_in_register = false;
181 // Context is returned in both rax and rsi. It replaces the context 181 // Context is returned in both rax and rsi. It replaces the context
182 // passed to us. It's saved in the stack and kept live in rsi. 182 // passed to us. It's saved in the stack and kept live in rsi.
183 __ movq(Operand(rbp, StandardFrameConstants::kContextOffset), rsi); 183 __ movq(Operand(rbp, StandardFrameConstants::kContextOffset), rsi);
184 184
185 // Copy any necessary parameters into the context. 185 // Copy any necessary parameters into the context.
186 int num_parameters = scope()->num_parameters(); 186 int num_parameters = scope()->num_parameters();
187 for (int i = 0; i < num_parameters; i++) { 187 for (int i = 0; i < num_parameters; i++) {
188 Slot* slot = scope()->parameter(i)->AsSlot(); 188 Slot* slot = scope()->parameter(i)->AsSlot();
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4311 __ ret(0); 4311 __ ret(0);
4312 } 4312 }
4313 4313
4314 4314
4315 #undef __ 4315 #undef __
4316 4316
4317 4317
4318 } } // namespace v8::internal 4318 } } // namespace v8::internal
4319 4319
4320 #endif // V8_TARGET_ARCH_X64 4320 #endif // V8_TARGET_ARCH_X64
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