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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_IA32 | 5 #if V8_TARGET_ARCH_IA32 |
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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2543 OperandStackDepthDecrement(arg_count + 1); | 2543 OperandStackDepthDecrement(arg_count + 1); |
2544 | 2544 |
2545 RecordJSReturnSite(expr); | 2545 RecordJSReturnSite(expr); |
2546 | 2546 |
2547 // Restore context register. | 2547 // Restore context register. |
2548 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); | 2548 __ mov(esi, Operand(ebp, StandardFrameConstants::kContextOffset)); |
2549 | 2549 |
2550 context()->DropAndPlug(1, eax); | 2550 context()->DropAndPlug(1, eax); |
2551 } | 2551 } |
2552 | 2552 |
2553 void FullCodeGenerator::EmitResolvePossiblyDirectEval(Call* expr) { | 2553 |
2554 int arg_count = expr->arguments()->length(); | 2554 void FullCodeGenerator::EmitResolvePossiblyDirectEval(int arg_count) { |
2555 // Push copy of the first argument or undefined if it doesn't exist. | 2555 // Push copy of the first argument or undefined if it doesn't exist. |
2556 if (arg_count > 0) { | 2556 if (arg_count > 0) { |
2557 __ push(Operand(esp, arg_count * kPointerSize)); | 2557 __ push(Operand(esp, arg_count * kPointerSize)); |
2558 } else { | 2558 } else { |
2559 __ push(Immediate(isolate()->factory()->undefined_value())); | 2559 __ push(Immediate(isolate()->factory()->undefined_value())); |
2560 } | 2560 } |
2561 | 2561 |
2562 // Push the enclosing function. | 2562 // Push the enclosing function. |
2563 __ push(Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); | 2563 __ push(Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); |
2564 | 2564 |
2565 // Push the language mode. | 2565 // Push the language mode. |
2566 __ push(Immediate(Smi::FromInt(language_mode()))); | 2566 __ push(Immediate(Smi::FromInt(language_mode()))); |
2567 | 2567 |
2568 // Push the source position of the eval call. | 2568 // Push the start position of the scope the calls resides in. |
2569 __ push(Immediate(Smi::FromInt(expr->position()))); | 2569 __ push(Immediate(Smi::FromInt(scope()->start_position()))); |
2570 | 2570 |
2571 // Do the runtime call. | 2571 // Do the runtime call. |
2572 __ CallRuntime(Runtime::kResolvePossiblyDirectEval); | 2572 __ CallRuntime(Runtime::kResolvePossiblyDirectEval); |
2573 } | 2573 } |
2574 | 2574 |
2575 | 2575 |
2576 // See http://www.ecma-international.org/ecma-262/6.0/#sec-function-calls. | 2576 // See http://www.ecma-international.org/ecma-262/6.0/#sec-function-calls. |
2577 void FullCodeGenerator::PushCalleeAndWithBaseObject(Call* expr) { | 2577 void FullCodeGenerator::PushCalleeAndWithBaseObject(Call* expr) { |
2578 VariableProxy* callee = expr->expression()->AsVariableProxy(); | 2578 VariableProxy* callee = expr->expression()->AsVariableProxy(); |
2579 if (callee->var()->IsLookupSlot()) { | 2579 if (callee->var()->IsLookupSlot()) { |
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2607 } | 2607 } |
2608 } else { | 2608 } else { |
2609 VisitForStackValue(callee); | 2609 VisitForStackValue(callee); |
2610 // refEnv.WithBaseObject() | 2610 // refEnv.WithBaseObject() |
2611 PushOperand(isolate()->factory()->undefined_value()); | 2611 PushOperand(isolate()->factory()->undefined_value()); |
2612 } | 2612 } |
2613 } | 2613 } |
2614 | 2614 |
2615 | 2615 |
2616 void FullCodeGenerator::EmitPossiblyEvalCall(Call* expr) { | 2616 void FullCodeGenerator::EmitPossiblyEvalCall(Call* expr) { |
2617 // In a call to eval, we first call Runtime_ResolvePossiblyDirectEval | 2617 // In a call to eval, we first call RuntimeHidden_ResolvePossiblyDirectEval |
2618 // to resolve the function we need to call. Then we call the resolved | 2618 // to resolve the function we need to call. Then we call the resolved |
2619 // function using the given arguments. | 2619 // function using the given arguments. |
2620 ZoneList<Expression*>* args = expr->arguments(); | 2620 ZoneList<Expression*>* args = expr->arguments(); |
2621 int arg_count = args->length(); | 2621 int arg_count = args->length(); |
2622 | 2622 |
2623 PushCalleeAndWithBaseObject(expr); | 2623 PushCalleeAndWithBaseObject(expr); |
2624 | 2624 |
2625 // Push the arguments. | 2625 // Push the arguments. |
2626 for (int i = 0; i < arg_count; i++) { | 2626 for (int i = 0; i < arg_count; i++) { |
2627 VisitForStackValue(args->at(i)); | 2627 VisitForStackValue(args->at(i)); |
2628 } | 2628 } |
2629 | 2629 |
2630 // Push a copy of the function (found below the arguments) and | 2630 // Push a copy of the function (found below the arguments) and |
2631 // resolve eval. | 2631 // resolve eval. |
2632 __ push(Operand(esp, (arg_count + 1) * kPointerSize)); | 2632 __ push(Operand(esp, (arg_count + 1) * kPointerSize)); |
2633 EmitResolvePossiblyDirectEval(expr); | 2633 EmitResolvePossiblyDirectEval(arg_count); |
2634 | 2634 |
2635 // Touch up the stack with the resolved function. | 2635 // Touch up the stack with the resolved function. |
2636 __ mov(Operand(esp, (arg_count + 1) * kPointerSize), eax); | 2636 __ mov(Operand(esp, (arg_count + 1) * kPointerSize), eax); |
2637 | 2637 |
2638 PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS); | 2638 PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS); |
2639 | 2639 |
2640 SetCallPosition(expr); | 2640 SetCallPosition(expr); |
2641 __ mov(edi, Operand(esp, (arg_count + 1) * kPointerSize)); | 2641 __ mov(edi, Operand(esp, (arg_count + 1) * kPointerSize)); |
2642 __ Set(eax, arg_count); | 2642 __ Set(eax, arg_count); |
2643 __ Call(isolate()->builtins()->Call(ConvertReceiverMode::kAny, | 2643 __ Call(isolate()->builtins()->Call(ConvertReceiverMode::kAny, |
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3985 isolate->builtins()->OnStackReplacement()->entry(), | 3985 isolate->builtins()->OnStackReplacement()->entry(), |
3986 Assembler::target_address_at(call_target_address, unoptimized_code)); | 3986 Assembler::target_address_at(call_target_address, unoptimized_code)); |
3987 return ON_STACK_REPLACEMENT; | 3987 return ON_STACK_REPLACEMENT; |
3988 } | 3988 } |
3989 | 3989 |
3990 | 3990 |
3991 } // namespace internal | 3991 } // namespace internal |
3992 } // namespace v8 | 3992 } // namespace v8 |
3993 | 3993 |
3994 #endif // V8_TARGET_ARCH_IA32 | 3994 #endif // V8_TARGET_ARCH_IA32 |
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