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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/code-factory.h" | 7 #include "src/code-factory.h" |
8 #include "src/codegen.h" | 8 #include "src/codegen.h" |
9 #include "src/deoptimizer.h" | 9 #include "src/deoptimizer.h" |
10 #include "src/full-codegen/full-codegen.h" | 10 #include "src/full-codegen/full-codegen.h" |
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595 void Builtins::Generate_InterpreterPushArgsAndConstruct(MacroAssembler* masm) { | 595 void Builtins::Generate_InterpreterPushArgsAndConstruct(MacroAssembler* masm) { |
596 // ----------- S t a t e ------------- | 596 // ----------- S t a t e ------------- |
597 // -- eax : the number of arguments (not including the receiver) | 597 // -- eax : the number of arguments (not including the receiver) |
598 // -- edx : the new target | 598 // -- edx : the new target |
599 // -- edi : the constructor | 599 // -- edi : the constructor |
600 // -- ebx : the address of the first argument to be pushed. Subsequent | 600 // -- ebx : the address of the first argument to be pushed. Subsequent |
601 // arguments should be consecutive above this, in the same order as | 601 // arguments should be consecutive above this, in the same order as |
602 // they are to be pushed onto the stack. | 602 // they are to be pushed onto the stack. |
603 // ----------------------------------- | 603 // ----------------------------------- |
604 | 604 |
605 // Save number of arguments on the stack below where arguments are going | |
606 // to be pushed. | |
607 __ mov(ecx, eax); | |
608 __ neg(ecx); | |
609 __ mov(Operand(esp, ecx, times_pointer_size, -kPointerSize), eax); | |
610 __ mov(eax, ecx); | |
611 | |
612 // Pop return address to allow tail-call after pushing arguments. | 605 // Pop return address to allow tail-call after pushing arguments. |
613 __ Pop(ecx); | 606 __ Pop(ecx); |
614 | 607 |
| 608 // Push edi in the slot meant for receiver. We need an extra register |
| 609 // so store edi temporarily on stack. |
| 610 __ Push(edi); |
| 611 |
615 // Find the address of the last argument. | 612 // Find the address of the last argument. |
616 __ shl(eax, kPointerSizeLog2); | 613 __ mov(edi, eax); |
617 __ add(eax, ebx); | 614 __ neg(edi); |
| 615 __ shl(edi, kPointerSizeLog2); |
| 616 __ add(edi, ebx); |
618 | 617 |
619 // Push padding for receiver. | 618 Generate_InterpreterPushArgs(masm, edi); |
620 __ Push(Immediate(0)); | |
621 | 619 |
622 Generate_InterpreterPushArgs(masm, eax); | 620 // Restore the constructor from slot on stack. It was pushed at the slot |
623 | 621 // meant for receiver. |
624 // Restore number of arguments from slot on stack. | 622 __ mov(edi, Operand(esp, eax, times_pointer_size, 0)); |
625 __ mov(eax, Operand(esp, -kPointerSize)); | |
626 | 623 |
627 // Re-push return address. | 624 // Re-push return address. |
628 __ Push(ecx); | 625 __ Push(ecx); |
629 | 626 |
630 // Call the constructor with unmodified eax, edi, ebi values. | 627 // Call the constructor with unmodified eax, edi, ebi values. |
631 __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); | 628 __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
632 } | 629 } |
633 | 630 |
634 | 631 |
635 static void Generate_EnterBytecodeDispatch(MacroAssembler* masm) { | 632 static void Generate_EnterBytecodeDispatch(MacroAssembler* masm) { |
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2663 | 2660 |
2664 __ bind(&ok); | 2661 __ bind(&ok); |
2665 __ ret(0); | 2662 __ ret(0); |
2666 } | 2663 } |
2667 | 2664 |
2668 #undef __ | 2665 #undef __ |
2669 } // namespace internal | 2666 } // namespace internal |
2670 } // namespace v8 | 2667 } // namespace v8 |
2671 | 2668 |
2672 #endif // V8_TARGET_ARCH_IA32 | 2669 #endif // V8_TARGET_ARCH_IA32 |
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