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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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_ARM64 | 5 #if V8_TARGET_ARCH_ARM64 |
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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186 | 186 |
187 if (info->scope()->num_heap_slots() > 0) { | 187 if (info->scope()->num_heap_slots() > 0) { |
188 // Argument to NewContext is the function, which is still in x1. | 188 // Argument to NewContext is the function, which is still in x1. |
189 Comment cmnt(masm_, "[ Allocate context"); | 189 Comment cmnt(masm_, "[ Allocate context"); |
190 bool need_write_barrier = true; | 190 bool need_write_barrier = true; |
191 int slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; | 191 int slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
192 if (info->scope()->is_script_scope()) { | 192 if (info->scope()->is_script_scope()) { |
193 __ Mov(x10, Operand(info->scope()->GetScopeInfo(info->isolate()))); | 193 __ Mov(x10, Operand(info->scope()->GetScopeInfo(info->isolate()))); |
194 __ Push(x1, x10); | 194 __ Push(x1, x10); |
195 __ CallRuntime(Runtime::kNewScriptContext, 2); | 195 __ CallRuntime(Runtime::kNewScriptContext, 2); |
| 196 PrepareForBailoutForId(BailoutId::ScriptContext(), TOS_REG); |
196 } else if (slots <= FastNewContextStub::kMaximumSlots) { | 197 } else if (slots <= FastNewContextStub::kMaximumSlots) { |
197 FastNewContextStub stub(isolate(), slots); | 198 FastNewContextStub stub(isolate(), slots); |
198 __ CallStub(&stub); | 199 __ CallStub(&stub); |
199 // Result of FastNewContextStub is always in new space. | 200 // Result of FastNewContextStub is always in new space. |
200 need_write_barrier = false; | 201 need_write_barrier = false; |
201 } else { | 202 } else { |
202 __ Push(x1); | 203 __ Push(x1); |
203 __ CallRuntime(Runtime::kNewFunctionContext, 1); | 204 __ CallRuntime(Runtime::kNewFunctionContext, 1); |
204 } | 205 } |
205 function_in_register_x1 = false; | 206 function_in_register_x1 = false; |
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227 x11, kLRHasBeenSaved, kDontSaveFPRegs); | 228 x11, kLRHasBeenSaved, kDontSaveFPRegs); |
228 } else if (FLAG_debug_code) { | 229 } else if (FLAG_debug_code) { |
229 Label done; | 230 Label done; |
230 __ JumpIfInNewSpace(cp, &done); | 231 __ JumpIfInNewSpace(cp, &done); |
231 __ Abort(kExpectedNewSpaceObject); | 232 __ Abort(kExpectedNewSpaceObject); |
232 __ bind(&done); | 233 __ bind(&done); |
233 } | 234 } |
234 } | 235 } |
235 } | 236 } |
236 } | 237 } |
| 238 PrepareForBailoutForId(BailoutId::FunctionContext(), NO_REGISTERS); |
237 | 239 |
238 PrepareForBailoutForId(BailoutId::Prologue(), NO_REGISTERS); | |
239 // Function register is trashed in case we bailout here. But since that | 240 // Function register is trashed in case we bailout here. But since that |
240 // could happen only when we allocate a context the value of | 241 // could happen only when we allocate a context the value of |
241 // |function_in_register_x1| is correct. | 242 // |function_in_register_x1| is correct. |
242 | 243 |
243 // Possibly set up a local binding to the this function which is used in | 244 // Possibly set up a local binding to the this function which is used in |
244 // derived constructors with super calls. | 245 // derived constructors with super calls. |
245 Variable* this_function_var = scope()->this_function_var(); | 246 Variable* this_function_var = scope()->this_function_var(); |
246 if (this_function_var != nullptr) { | 247 if (this_function_var != nullptr) { |
247 Comment cmnt(masm_, "[ This function"); | 248 Comment cmnt(masm_, "[ This function"); |
248 if (!function_in_register_x1) { | 249 if (!function_in_register_x1) { |
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5211 } | 5212 } |
5212 | 5213 |
5213 return INTERRUPT; | 5214 return INTERRUPT; |
5214 } | 5215 } |
5215 | 5216 |
5216 | 5217 |
5217 } // namespace internal | 5218 } // namespace internal |
5218 } // namespace v8 | 5219 } // namespace v8 |
5219 | 5220 |
5220 #endif // V8_TARGET_ARCH_ARM64 | 5221 #endif // V8_TARGET_ARCH_ARM64 |
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