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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/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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| 688 __ Push(Operand(start_address, 0)); | 688 __ Push(Operand(start_address, 0)); |
| 689 __ sub(start_address, Immediate(kPointerSize)); | 689 __ sub(start_address, Immediate(kPointerSize)); |
| 690 __ bind(&loop_check); | 690 __ bind(&loop_check); |
| 691 __ cmp(start_address, array_limit); | 691 __ cmp(start_address, array_limit); |
| 692 __ j(greater, &loop_header, Label::kNear); | 692 __ j(greater, &loop_header, Label::kNear); |
| 693 } | 693 } |
| 694 | 694 |
| 695 // static | 695 // static |
| 696 void Builtins::Generate_InterpreterPushArgsAndCallImpl( | 696 void Builtins::Generate_InterpreterPushArgsAndCallImpl( |
| 697 MacroAssembler* masm, TailCallMode tail_call_mode, | 697 MacroAssembler* masm, TailCallMode tail_call_mode, |
| 698 CallableType function_type) { | 698 InterpreterPushArgsMode mode) { |
| 699 // ----------- S t a t e ------------- | 699 // ----------- S t a t e ------------- |
| 700 // -- eax : the number of arguments (not including the receiver) | 700 // -- eax : the number of arguments (not including the receiver) |
| 701 // -- ebx : the address of the first argument to be pushed. Subsequent | 701 // -- ebx : the address of the first argument to be pushed. Subsequent |
| 702 // arguments should be consecutive above this, in the same order as | 702 // arguments should be consecutive above this, in the same order as |
| 703 // they are to be pushed onto the stack. | 703 // they are to be pushed onto the stack. |
| 704 // -- edi : the target to call (can be any Object). | 704 // -- edi : the target to call (can be any Object). |
| 705 // ----------------------------------- | 705 // ----------------------------------- |
| 706 Label stack_overflow; | 706 Label stack_overflow; |
| 707 // Compute the expected number of arguments. | 707 // Compute the expected number of arguments. |
| 708 __ mov(ecx, eax); | 708 __ mov(ecx, eax); |
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| 720 | 720 |
| 721 // Find the address of the last argument. | 721 // Find the address of the last argument. |
| 722 __ shl(ecx, kPointerSizeLog2); | 722 __ shl(ecx, kPointerSizeLog2); |
| 723 __ neg(ecx); | 723 __ neg(ecx); |
| 724 __ add(ecx, ebx); | 724 __ add(ecx, ebx); |
| 725 Generate_InterpreterPushArgs(masm, ecx, ebx); | 725 Generate_InterpreterPushArgs(masm, ecx, ebx); |
| 726 | 726 |
| 727 // Call the target. | 727 // Call the target. |
| 728 __ Push(edx); // Re-push return address. | 728 __ Push(edx); // Re-push return address. |
| 729 | 729 |
| 730 if (function_type == CallableType::kJSFunction) { | 730 if (mode == InterpreterPushArgsMode::kJSFunction) { |
| 731 __ Jump(masm->isolate()->builtins()->CallFunction(ConvertReceiverMode::kAny, | 731 __ Jump(masm->isolate()->builtins()->CallFunction(ConvertReceiverMode::kAny, |
| 732 tail_call_mode), | 732 tail_call_mode), |
| 733 RelocInfo::CODE_TARGET); | 733 RelocInfo::CODE_TARGET); |
| 734 } else { | 734 } else { |
| 735 DCHECK_EQ(function_type, CallableType::kAny); | 735 DCHECK_EQ(mode, InterpreterPushArgsMode::kOther); |
| 736 __ Jump(masm->isolate()->builtins()->Call(ConvertReceiverMode::kAny, | 736 __ Jump(masm->isolate()->builtins()->Call(ConvertReceiverMode::kAny, |
| 737 tail_call_mode), | 737 tail_call_mode), |
| 738 RelocInfo::CODE_TARGET); | 738 RelocInfo::CODE_TARGET); |
| 739 } | 739 } |
| 740 | 740 |
| 741 __ bind(&stack_overflow); | 741 __ bind(&stack_overflow); |
| 742 { | 742 { |
| 743 // Pop the temporary registers, so that return address is on top of stack. | 743 // Pop the temporary registers, so that return address is on top of stack. |
| 744 __ Pop(edi); | 744 __ Pop(edi); |
| 745 | 745 |
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| 838 __ sub(scratch1, Immediate(1)); | 838 __ sub(scratch1, Immediate(1)); |
| 839 __ bind(&loop_check); | 839 __ bind(&loop_check); |
| 840 __ cmp(scratch1, Immediate(0)); | 840 __ cmp(scratch1, Immediate(0)); |
| 841 __ j(greater, &loop_header, Label::kNear); | 841 __ j(greater, &loop_header, Label::kNear); |
| 842 } | 842 } |
| 843 | 843 |
| 844 } // end anonymous namespace | 844 } // end anonymous namespace |
| 845 | 845 |
| 846 // static | 846 // static |
| 847 void Builtins::Generate_InterpreterPushArgsAndConstructImpl( | 847 void Builtins::Generate_InterpreterPushArgsAndConstructImpl( |
| 848 MacroAssembler* masm, PushArgsConstructMode mode) { | 848 MacroAssembler* masm, InterpreterPushArgsMode mode) { |
| 849 // ----------- S t a t e ------------- | 849 // ----------- S t a t e ------------- |
| 850 // -- eax : the number of arguments (not including the receiver) | 850 // -- eax : the number of arguments (not including the receiver) |
| 851 // -- edx : the new target | 851 // -- edx : the new target |
| 852 // -- edi : the constructor | 852 // -- edi : the constructor |
| 853 // -- ebx : allocation site feedback (if available or undefined) | 853 // -- ebx : allocation site feedback (if available or undefined) |
| 854 // -- ecx : the address of the first argument to be pushed. Subsequent | 854 // -- ecx : the address of the first argument to be pushed. Subsequent |
| 855 // arguments should be consecutive above this, in the same order as | 855 // arguments should be consecutive above this, in the same order as |
| 856 // they are to be pushed onto the stack. | 856 // they are to be pushed onto the stack. |
| 857 // ----------------------------------- | 857 // ----------------------------------- |
| 858 Label stack_overflow; | 858 Label stack_overflow; |
| 859 // We need two scratch registers. Push edi and edx onto stack. | 859 // We need two scratch registers. Push edi and edx onto stack. |
| 860 __ Push(edi); | 860 __ Push(edi); |
| 861 __ Push(edx); | 861 __ Push(edx); |
| 862 | 862 |
| 863 // Push arguments and move return address to the top of stack. | 863 // Push arguments and move return address to the top of stack. |
| 864 // The eax register is readonly. The ecx register will be modified. The edx | 864 // The eax register is readonly. The ecx register will be modified. The edx |
| 865 // and edi registers will be modified but restored to their original values. | 865 // and edi registers will be modified but restored to their original values. |
| 866 Generate_InterpreterPushArgsAndReturnAddress(masm, eax, ecx, edx, edi, false, | 866 Generate_InterpreterPushArgsAndReturnAddress(masm, eax, ecx, edx, edi, false, |
| 867 2, &stack_overflow); | 867 2, &stack_overflow); |
| 868 | 868 |
| 869 // Restore edi and edx | 869 // Restore edi and edx |
| 870 __ Pop(edx); | 870 __ Pop(edx); |
| 871 __ Pop(edi); | 871 __ Pop(edi); |
| 872 | 872 |
| 873 __ AssertUndefinedOrAllocationSite(ebx); | 873 __ AssertUndefinedOrAllocationSite(ebx); |
| 874 if (mode == PushArgsConstructMode::kJSFunction) { | 874 if (mode == InterpreterPushArgsMode::kJSFunction) { |
| 875 // Tail call to the function-specific construct stub (still in the caller | 875 // Tail call to the function-specific construct stub (still in the caller |
| 876 // context at this point). | 876 // context at this point). |
| 877 __ AssertFunction(edi); | 877 __ AssertFunction(edi); |
| 878 | 878 |
| 879 __ mov(ecx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); | 879 __ mov(ecx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
| 880 __ mov(ecx, FieldOperand(ecx, SharedFunctionInfo::kConstructStubOffset)); | 880 __ mov(ecx, FieldOperand(ecx, SharedFunctionInfo::kConstructStubOffset)); |
| 881 __ lea(ecx, FieldOperand(ecx, Code::kHeaderSize)); | 881 __ lea(ecx, FieldOperand(ecx, Code::kHeaderSize)); |
| 882 __ jmp(ecx); | 882 __ jmp(ecx); |
| 883 } else if (mode == PushArgsConstructMode::kWithFinalSpread) { | 883 } else if (mode == InterpreterPushArgsMode::kWithFinalSpread) { |
| 884 // Call the constructor with unmodified eax, edi, edx values. | 884 // Call the constructor with unmodified eax, edi, edx values. |
| 885 __ Jump(masm->isolate()->builtins()->ConstructWithSpread(), | 885 __ Jump(masm->isolate()->builtins()->ConstructWithSpread(), |
| 886 RelocInfo::CODE_TARGET); | 886 RelocInfo::CODE_TARGET); |
| 887 } else { | 887 } else { |
| 888 DCHECK_EQ(PushArgsConstructMode::kOther, mode); | 888 DCHECK_EQ(InterpreterPushArgsMode::kOther, mode); |
| 889 // Call the constructor with unmodified eax, edi, edx values. | 889 // Call the constructor with unmodified eax, edi, edx values. |
| 890 __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); | 890 __ Jump(masm->isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); |
| 891 } | 891 } |
| 892 | 892 |
| 893 __ bind(&stack_overflow); | 893 __ bind(&stack_overflow); |
| 894 { | 894 { |
| 895 // Pop the temporary registers, so that return address is on top of stack. | 895 // Pop the temporary registers, so that return address is on top of stack. |
| 896 __ Pop(edx); | 896 __ Pop(edx); |
| 897 __ Pop(edi); | 897 __ Pop(edi); |
| 898 | 898 |
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| 3322 | 3322 |
| 3323 void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) { | 3323 void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) { |
| 3324 Generate_OnStackReplacementHelper(masm, true); | 3324 Generate_OnStackReplacementHelper(masm, true); |
| 3325 } | 3325 } |
| 3326 | 3326 |
| 3327 #undef __ | 3327 #undef __ |
| 3328 } // namespace internal | 3328 } // namespace internal |
| 3329 } // namespace v8 | 3329 } // namespace v8 |
| 3330 | 3330 |
| 3331 #endif // V8_TARGET_ARCH_X87 | 3331 #endif // V8_TARGET_ARCH_X87 |
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