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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_X64 | 5 #if V8_TARGET_ARCH_X64 |
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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2443 OperandStackDepthDecrement(arg_count + 1); | 2443 OperandStackDepthDecrement(arg_count + 1); |
2444 | 2444 |
2445 RecordJSReturnSite(expr); | 2445 RecordJSReturnSite(expr); |
2446 | 2446 |
2447 // Restore context register. | 2447 // Restore context register. |
2448 __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); | 2448 __ movp(rsi, Operand(rbp, StandardFrameConstants::kContextOffset)); |
2449 // Discard the function left on TOS. | 2449 // Discard the function left on TOS. |
2450 context()->DropAndPlug(1, rax); | 2450 context()->DropAndPlug(1, rax); |
2451 } | 2451 } |
2452 | 2452 |
2453 | 2453 void FullCodeGenerator::EmitResolvePossiblyDirectEval(Call* expr) { |
2454 void FullCodeGenerator::EmitResolvePossiblyDirectEval(int arg_count) { | 2454 int arg_count = expr->arguments()->length(); |
2455 // Push copy of the first argument or undefined if it doesn't exist. | 2455 // Push copy of the first argument or undefined if it doesn't exist. |
2456 if (arg_count > 0) { | 2456 if (arg_count > 0) { |
2457 __ Push(Operand(rsp, arg_count * kPointerSize)); | 2457 __ Push(Operand(rsp, arg_count * kPointerSize)); |
2458 } else { | 2458 } else { |
2459 __ PushRoot(Heap::kUndefinedValueRootIndex); | 2459 __ PushRoot(Heap::kUndefinedValueRootIndex); |
2460 } | 2460 } |
2461 | 2461 |
2462 // Push the enclosing function. | 2462 // Push the enclosing function. |
2463 __ Push(Operand(rbp, JavaScriptFrameConstants::kFunctionOffset)); | 2463 __ Push(Operand(rbp, JavaScriptFrameConstants::kFunctionOffset)); |
2464 | 2464 |
2465 // Push the language mode. | 2465 // Push the language mode. |
2466 __ Push(Smi::FromInt(language_mode())); | 2466 __ Push(Smi::FromInt(language_mode())); |
2467 | 2467 |
2468 // Push the start position of the scope the calls resides in. | 2468 // Push the start position of the scope the calls resides in. |
2469 __ Push(Smi::FromInt(scope()->start_position())); | 2469 __ Push(Smi::FromInt(scope()->start_position())); |
2470 | 2470 |
| 2471 // Push the source position of the eval call. |
| 2472 __ Push(Smi::FromInt(expr->position())); |
| 2473 |
2471 // Do the runtime call. | 2474 // Do the runtime call. |
2472 __ CallRuntime(Runtime::kResolvePossiblyDirectEval); | 2475 __ CallRuntime(Runtime::kResolvePossiblyDirectEval); |
2473 } | 2476 } |
2474 | 2477 |
2475 | 2478 |
2476 // See http://www.ecma-international.org/ecma-262/6.0/#sec-function-calls. | 2479 // See http://www.ecma-international.org/ecma-262/6.0/#sec-function-calls. |
2477 void FullCodeGenerator::PushCalleeAndWithBaseObject(Call* expr) { | 2480 void FullCodeGenerator::PushCalleeAndWithBaseObject(Call* expr) { |
2478 VariableProxy* callee = expr->expression()->AsVariableProxy(); | 2481 VariableProxy* callee = expr->expression()->AsVariableProxy(); |
2479 if (callee->var()->IsLookupSlot()) { | 2482 if (callee->var()->IsLookupSlot()) { |
2480 Label slow, done; | 2483 Label slow, done; |
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2508 } else { | 2511 } else { |
2509 VisitForStackValue(callee); | 2512 VisitForStackValue(callee); |
2510 // refEnv.WithBaseObject() | 2513 // refEnv.WithBaseObject() |
2511 OperandStackDepthIncrement(1); | 2514 OperandStackDepthIncrement(1); |
2512 __ PushRoot(Heap::kUndefinedValueRootIndex); | 2515 __ PushRoot(Heap::kUndefinedValueRootIndex); |
2513 } | 2516 } |
2514 } | 2517 } |
2515 | 2518 |
2516 | 2519 |
2517 void FullCodeGenerator::EmitPossiblyEvalCall(Call* expr) { | 2520 void FullCodeGenerator::EmitPossiblyEvalCall(Call* expr) { |
2518 // In a call to eval, we first call RuntimeHidden_ResolvePossiblyDirectEval | 2521 // In a call to eval, we first call Runtime_ResolvePossiblyDirectEval |
2519 // to resolve the function we need to call. Then we call the resolved | 2522 // to resolve the function we need to call. Then we call the resolved |
2520 // function using the given arguments. | 2523 // function using the given arguments. |
2521 ZoneList<Expression*>* args = expr->arguments(); | 2524 ZoneList<Expression*>* args = expr->arguments(); |
2522 int arg_count = args->length(); | 2525 int arg_count = args->length(); |
2523 PushCalleeAndWithBaseObject(expr); | 2526 PushCalleeAndWithBaseObject(expr); |
2524 | 2527 |
2525 // Push the arguments. | 2528 // Push the arguments. |
2526 for (int i = 0; i < arg_count; i++) { | 2529 for (int i = 0; i < arg_count; i++) { |
2527 VisitForStackValue(args->at(i)); | 2530 VisitForStackValue(args->at(i)); |
2528 } | 2531 } |
2529 | 2532 |
2530 // Push a copy of the function (found below the arguments) and resolve | 2533 // Push a copy of the function (found below the arguments) and resolve |
2531 // eval. | 2534 // eval. |
2532 __ Push(Operand(rsp, (arg_count + 1) * kPointerSize)); | 2535 __ Push(Operand(rsp, (arg_count + 1) * kPointerSize)); |
2533 EmitResolvePossiblyDirectEval(arg_count); | 2536 EmitResolvePossiblyDirectEval(expr); |
2534 | 2537 |
2535 // Touch up the callee. | 2538 // Touch up the callee. |
2536 __ movp(Operand(rsp, (arg_count + 1) * kPointerSize), rax); | 2539 __ movp(Operand(rsp, (arg_count + 1) * kPointerSize), rax); |
2537 | 2540 |
2538 PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS); | 2541 PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS); |
2539 | 2542 |
2540 SetCallPosition(expr); | 2543 SetCallPosition(expr); |
2541 __ movp(rdi, Operand(rsp, (arg_count + 1) * kPointerSize)); | 2544 __ movp(rdi, Operand(rsp, (arg_count + 1) * kPointerSize)); |
2542 __ Set(rax, arg_count); | 2545 __ Set(rax, arg_count); |
2543 __ Call(isolate()->builtins()->Call(ConvertReceiverMode::kAny, | 2546 __ Call(isolate()->builtins()->Call(ConvertReceiverMode::kAny, |
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3880 DCHECK_EQ( | 3883 DCHECK_EQ( |
3881 isolate->builtins()->OnStackReplacement()->entry(), | 3884 isolate->builtins()->OnStackReplacement()->entry(), |
3882 Assembler::target_address_at(call_target_address, unoptimized_code)); | 3885 Assembler::target_address_at(call_target_address, unoptimized_code)); |
3883 return ON_STACK_REPLACEMENT; | 3886 return ON_STACK_REPLACEMENT; |
3884 } | 3887 } |
3885 | 3888 |
3886 } // namespace internal | 3889 } // namespace internal |
3887 } // namespace v8 | 3890 } // namespace v8 |
3888 | 3891 |
3889 #endif // V8_TARGET_ARCH_X64 | 3892 #endif // V8_TARGET_ARCH_X64 |
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