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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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175 // Possibly allocate a local context. 175 // Possibly allocate a local context.
176 int heap_slots = scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; 176 int heap_slots = scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS;
177 if (heap_slots > 0) { 177 if (heap_slots > 0) {
178 Comment cmnt(masm_, "[ Allocate local context"); 178 Comment cmnt(masm_, "[ Allocate local context");
179 // Argument to NewContext is the function, which is in r1. 179 // Argument to NewContext is the function, which is in r1.
180 __ push(r1); 180 __ push(r1);
181 if (heap_slots <= FastNewContextStub::kMaximumSlots) { 181 if (heap_slots <= FastNewContextStub::kMaximumSlots) {
182 FastNewContextStub stub(heap_slots); 182 FastNewContextStub stub(heap_slots);
183 __ CallStub(&stub); 183 __ CallStub(&stub);
184 } else { 184 } else {
185 __ CallRuntime(Runtime::kNewContext, 1); 185 __ CallRuntime(Runtime::kNewFunctionContext, 1);
186 } 186 }
187 function_in_register = false; 187 function_in_register = false;
188 // Context is returned in both r0 and cp. It replaces the context 188 // Context is returned in both r0 and cp. It replaces the context
189 // passed to us. It's saved in the stack and kept live in cp. 189 // passed to us. It's saved in the stack and kept live in cp.
190 __ str(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); 190 __ str(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
191 // Copy any necessary parameters into the context. 191 // Copy any necessary parameters into the context.
192 int num_parameters = scope()->num_parameters(); 192 int num_parameters = scope()->num_parameters();
193 for (int i = 0; i < num_parameters; i++) { 193 for (int i = 0; i < num_parameters; i++) {
194 Slot* slot = scope()->parameter(i)->AsSlot(); 194 Slot* slot = scope()->parameter(i)->AsSlot();
195 if (slot != NULL && slot->type() == Slot::CONTEXT) { 195 if (slot != NULL && slot->type() == Slot::CONTEXT) {
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4367 __ mov(r1, Operand(r1, ASR, 1)); // Un-smi-tag value. 4367 __ mov(r1, Operand(r1, ASR, 1)); // Un-smi-tag value.
4368 __ add(pc, r1, Operand(masm_->CodeObject())); 4368 __ add(pc, r1, Operand(masm_->CodeObject()));
4369 } 4369 }
4370 4370
4371 4371
4372 #undef __ 4372 #undef __
4373 4373
4374 } } // namespace v8::internal 4374 } } // namespace v8::internal
4375 4375
4376 #endif // V8_TARGET_ARCH_ARM 4376 #endif // V8_TARGET_ARCH_ARM
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