diff --git a/src/x87/code-stubs-x87.cc b/src/x87/code-stubs-x87.cc index 3d44cc522e..bfd2b2df72 100644 --- a/src/x87/code-stubs-x87.cc +++ b/src/x87/code-stubs-x87.cc @@ -4306,7 +4306,7 @@ void ArrayConstructorStub::GenerateDispatchToArrayStub( void ArrayConstructorStub::Generate(MacroAssembler* masm) { // ----------- S t a t e ------------- - // -- eax : argc (only if argument_count() == ANY) + // -- eax : argc (only if argument_count() is ANY or MORE_THAN_ONE) // -- ebx : AllocationSite or undefined // -- edi : constructor // -- edx : Original constructor @@ -4340,9 +4340,6 @@ void ArrayConstructorStub::Generate(MacroAssembler* masm) { __ cmp(ebx, isolate()->factory()->undefined_value()); __ j(equal, &no_info); - __ cmp(edx, edi); - __ j(not_equal, &subclassing); - // Only look at the lower 16 bits of the transition info. __ mov(edx, FieldOperand(ebx, AllocationSite::kTransitionInfoOffset)); __ SmiUntag(edx); @@ -4353,8 +4350,29 @@ void ArrayConstructorStub::Generate(MacroAssembler* masm) { __ bind(&no_info); GenerateDispatchToArrayStub(masm, DISABLE_ALLOCATION_SITES); + // Subclassing. __ bind(&subclassing); - __ TailCallRuntime(Runtime::kThrowArrayNotSubclassableError, 0, 1); + __ pop(ecx); // return address. + __ push(edi); + __ push(edx); + + // Adjust argc. + switch (argument_count()) { + case ANY: + case MORE_THAN_ONE: + __ add(eax, Immediate(2)); + break; + case NONE: + __ mov(eax, Immediate(2)); + break; + case ONE: + __ mov(eax, Immediate(3)); + break; + } + + __ push(ecx); + __ JumpToExternalReference( + ExternalReference(Runtime::kArrayConstructorWithSubclassing, isolate())); }