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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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177 // Possibly allocate a local context. 177 // Possibly allocate a local context.
178 int heap_slots = scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; 178 int heap_slots = scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS;
179 if (heap_slots > 0) { 179 if (heap_slots > 0) {
180 Comment(";;; Allocate local context"); 180 Comment(";;; Allocate local context");
181 // Argument to NewContext is the function, which is still in edi. 181 // Argument to NewContext is the function, which is still in edi.
182 __ push(edi); 182 __ push(edi);
183 if (heap_slots <= FastNewContextStub::kMaximumSlots) { 183 if (heap_slots <= FastNewContextStub::kMaximumSlots) {
184 FastNewContextStub stub(heap_slots); 184 FastNewContextStub stub(heap_slots);
185 __ CallStub(&stub); 185 __ CallStub(&stub);
186 } else { 186 } else {
187 __ CallRuntime(Runtime::kNewContext, 1); 187 __ CallRuntime(Runtime::kNewFunctionContext, 1);
188 } 188 }
189 RecordSafepoint(Safepoint::kNoDeoptimizationIndex); 189 RecordSafepoint(Safepoint::kNoDeoptimizationIndex);
190 // Context is returned in both eax and esi. It replaces the context 190 // Context is returned in both eax and esi. It replaces the context
191 // passed to us. It's saved in the stack and kept live in esi. 191 // passed to us. It's saved in the stack and kept live in esi.
192 __ mov(Operand(ebp, StandardFrameConstants::kContextOffset), esi); 192 __ mov(Operand(ebp, StandardFrameConstants::kContextOffset), esi);
193 193
194 // Copy parameters into context if necessary. 194 // Copy parameters into context if necessary.
195 int num_parameters = scope()->num_parameters(); 195 int num_parameters = scope()->num_parameters();
196 for (int i = 0; i < num_parameters; i++) { 196 for (int i = 0; i < num_parameters; i++) {
197 Slot* slot = scope()->parameter(i)->AsSlot(); 197 Slot* slot = scope()->parameter(i)->AsSlot();
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4444 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); 4444 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset));
4445 __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator); 4445 __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION, safepoint_generator);
4446 } 4446 }
4447 4447
4448 4448
4449 #undef __ 4449 #undef __
4450 4450
4451 } } // namespace v8::internal 4451 } } // namespace v8::internal
4452 4452
4453 #endif // V8_TARGET_ARCH_IA32 4453 #endif // V8_TARGET_ARCH_IA32
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