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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_X87 | 5 #if V8_TARGET_ARCH_X87 |
6 | 6 |
7 #include "src/ast/scopes.h" | 7 #include "src/ast/scopes.h" |
8 #include "src/code-factory.h" | 8 #include "src/code-factory.h" |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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278 __ CallStub(&stub); | 278 __ CallStub(&stub); |
279 } | 279 } |
280 | 280 |
281 SetVar(arguments, eax, ebx, edx); | 281 SetVar(arguments, eax, ebx, edx); |
282 } | 282 } |
283 | 283 |
284 if (FLAG_trace) { | 284 if (FLAG_trace) { |
285 __ CallRuntime(Runtime::kTraceEnter); | 285 __ CallRuntime(Runtime::kTraceEnter); |
286 } | 286 } |
287 | 287 |
288 // Visit the declarations and body unless there is an illegal | 288 // Visit the declarations and body. |
289 // redeclaration. | 289 PrepareForBailoutForId(BailoutId::FunctionEntry(), NO_REGISTERS); |
290 if (scope()->HasIllegalRedeclaration()) { | 290 { |
291 EmitIllegalRedeclaration(); | 291 Comment cmnt(masm_, "[ Declarations"); |
292 } else { | 292 VisitDeclarations(scope()->declarations()); |
293 PrepareForBailoutForId(BailoutId::FunctionEntry(), NO_REGISTERS); | 293 } |
294 { Comment cmnt(masm_, "[ Declarations"); | |
295 VisitDeclarations(scope()->declarations()); | |
296 } | |
297 | 294 |
298 // Assert that the declarations do not use ICs. Otherwise the debugger | 295 // Assert that the declarations do not use ICs. Otherwise the debugger |
299 // won't be able to redirect a PC at an IC to the correct IC in newly | 296 // won't be able to redirect a PC at an IC to the correct IC in newly |
300 // recompiled code. | 297 // recompiled code. |
301 DCHECK_EQ(0, ic_total_count_); | 298 DCHECK_EQ(0, ic_total_count_); |
302 | 299 |
303 { Comment cmnt(masm_, "[ Stack check"); | 300 { |
304 PrepareForBailoutForId(BailoutId::Declarations(), NO_REGISTERS); | 301 Comment cmnt(masm_, "[ Stack check"); |
305 Label ok; | 302 PrepareForBailoutForId(BailoutId::Declarations(), NO_REGISTERS); |
306 ExternalReference stack_limit | 303 Label ok; |
307 = ExternalReference::address_of_stack_limit(isolate()); | 304 ExternalReference stack_limit = |
308 __ cmp(esp, Operand::StaticVariable(stack_limit)); | 305 ExternalReference::address_of_stack_limit(isolate()); |
309 __ j(above_equal, &ok, Label::kNear); | 306 __ cmp(esp, Operand::StaticVariable(stack_limit)); |
310 __ call(isolate()->builtins()->StackCheck(), RelocInfo::CODE_TARGET); | 307 __ j(above_equal, &ok, Label::kNear); |
311 __ bind(&ok); | 308 __ call(isolate()->builtins()->StackCheck(), RelocInfo::CODE_TARGET); |
312 } | 309 __ bind(&ok); |
| 310 } |
313 | 311 |
314 { Comment cmnt(masm_, "[ Body"); | 312 { |
315 DCHECK(loop_depth() == 0); | 313 Comment cmnt(masm_, "[ Body"); |
316 VisitStatements(literal()->body()); | 314 DCHECK(loop_depth() == 0); |
317 DCHECK(loop_depth() == 0); | 315 VisitStatements(literal()->body()); |
318 } | 316 DCHECK(loop_depth() == 0); |
319 } | 317 } |
320 | 318 |
321 // Always emit a 'return undefined' in case control fell off the end of | 319 // Always emit a 'return undefined' in case control fell off the end of |
322 // the body. | 320 // the body. |
323 { Comment cmnt(masm_, "[ return <undefined>;"); | 321 { Comment cmnt(masm_, "[ return <undefined>;"); |
324 __ mov(eax, isolate()->factory()->undefined_value()); | 322 __ mov(eax, isolate()->factory()->undefined_value()); |
325 EmitReturnSequence(); | 323 EmitReturnSequence(); |
326 } | 324 } |
327 } | 325 } |
328 | 326 |
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3998 isolate->builtins()->OnStackReplacement()->entry(), | 3996 isolate->builtins()->OnStackReplacement()->entry(), |
3999 Assembler::target_address_at(call_target_address, unoptimized_code)); | 3997 Assembler::target_address_at(call_target_address, unoptimized_code)); |
4000 return ON_STACK_REPLACEMENT; | 3998 return ON_STACK_REPLACEMENT; |
4001 } | 3999 } |
4002 | 4000 |
4003 | 4001 |
4004 } // namespace internal | 4002 } // namespace internal |
4005 } // namespace v8 | 4003 } // namespace v8 |
4006 | 4004 |
4007 #endif // V8_TARGET_ARCH_X87 | 4005 #endif // V8_TARGET_ARCH_X87 |
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