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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 #if V8_TARGET_ARCH_ARM | 5 #if V8_TARGET_ARCH_ARM |
| 6 | 6 |
| 7 #include "src/code-factory.h" | 7 #include "src/code-factory.h" |
| 8 #include "src/code-stubs.h" | 8 #include "src/code-stubs.h" |
| 9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
| 10 #include "src/debug/debug.h" | 10 #include "src/debug/debug.h" |
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| 184 // Possibly allocate a local context. | 184 // Possibly allocate a local context. |
| 185 if (info->scope()->num_heap_slots() > 0) { | 185 if (info->scope()->num_heap_slots() > 0) { |
| 186 // Argument to NewContext is the function, which is still in r1. | 186 // Argument to NewContext is the function, which is still in r1. |
| 187 Comment cmnt(masm_, "[ Allocate context"); | 187 Comment cmnt(masm_, "[ Allocate context"); |
| 188 bool need_write_barrier = true; | 188 bool need_write_barrier = true; |
| 189 int slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; | 189 int slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
| 190 if (info->scope()->is_script_scope()) { | 190 if (info->scope()->is_script_scope()) { |
| 191 __ push(r1); | 191 __ push(r1); |
| 192 __ Push(info->scope()->GetScopeInfo(info->isolate())); | 192 __ Push(info->scope()->GetScopeInfo(info->isolate())); |
| 193 __ CallRuntime(Runtime::kNewScriptContext, 2); | 193 __ CallRuntime(Runtime::kNewScriptContext, 2); |
| 194 PrepareForBailoutForId(BailoutId::ScriptContext(), TOS_REG); |
| 194 } else if (slots <= FastNewContextStub::kMaximumSlots) { | 195 } else if (slots <= FastNewContextStub::kMaximumSlots) { |
| 195 FastNewContextStub stub(isolate(), slots); | 196 FastNewContextStub stub(isolate(), slots); |
| 196 __ CallStub(&stub); | 197 __ CallStub(&stub); |
| 197 // Result of FastNewContextStub is always in new space. | 198 // Result of FastNewContextStub is always in new space. |
| 198 need_write_barrier = false; | 199 need_write_barrier = false; |
| 199 } else { | 200 } else { |
| 200 __ push(r1); | 201 __ push(r1); |
| 201 __ CallRuntime(Runtime::kNewFunctionContext, 1); | 202 __ CallRuntime(Runtime::kNewFunctionContext, 1); |
| 202 } | 203 } |
| 203 function_in_register_r1 = false; | 204 function_in_register_r1 = false; |
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| 225 cp, target.offset(), r0, r3, kLRHasBeenSaved, kDontSaveFPRegs); | 226 cp, target.offset(), r0, r3, kLRHasBeenSaved, kDontSaveFPRegs); |
| 226 } else if (FLAG_debug_code) { | 227 } else if (FLAG_debug_code) { |
| 227 Label done; | 228 Label done; |
| 228 __ JumpIfInNewSpace(cp, r0, &done); | 229 __ JumpIfInNewSpace(cp, r0, &done); |
| 229 __ Abort(kExpectedNewSpaceObject); | 230 __ Abort(kExpectedNewSpaceObject); |
| 230 __ bind(&done); | 231 __ bind(&done); |
| 231 } | 232 } |
| 232 } | 233 } |
| 233 } | 234 } |
| 234 } | 235 } |
| 236 PrepareForBailoutForId(BailoutId::FunctionContext(), NO_REGISTERS); |
| 235 | 237 |
| 236 PrepareForBailoutForId(BailoutId::Prologue(), NO_REGISTERS); | |
| 237 // Function register is trashed in case we bailout here. But since that | 238 // Function register is trashed in case we bailout here. But since that |
| 238 // could happen only when we allocate a context the value of | 239 // could happen only when we allocate a context the value of |
| 239 // |function_in_register_r1| is correct. | 240 // |function_in_register_r1| is correct. |
| 240 | 241 |
| 241 // Possibly set up a local binding to the this function which is used in | 242 // Possibly set up a local binding to the this function which is used in |
| 242 // derived constructors with super calls. | 243 // derived constructors with super calls. |
| 243 Variable* this_function_var = scope()->this_function_var(); | 244 Variable* this_function_var = scope()->this_function_var(); |
| 244 if (this_function_var != nullptr) { | 245 if (this_function_var != nullptr) { |
| 245 Comment cmnt(masm_, "[ This function"); | 246 Comment cmnt(masm_, "[ This function"); |
| 246 if (!function_in_register_r1) { | 247 if (!function_in_register_r1) { |
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| 5224 DCHECK(interrupt_address == | 5225 DCHECK(interrupt_address == |
| 5225 isolate->builtins()->OsrAfterStackCheck()->entry()); | 5226 isolate->builtins()->OsrAfterStackCheck()->entry()); |
| 5226 return OSR_AFTER_STACK_CHECK; | 5227 return OSR_AFTER_STACK_CHECK; |
| 5227 } | 5228 } |
| 5228 | 5229 |
| 5229 | 5230 |
| 5230 } // namespace internal | 5231 } // namespace internal |
| 5231 } // namespace v8 | 5232 } // namespace v8 |
| 5232 | 5233 |
| 5233 #endif // V8_TARGET_ARCH_ARM | 5234 #endif // V8_TARGET_ARCH_ARM |
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