| Index: src/x64/code-stubs-x64.cc | 
| diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc | 
| index 672be58db3643cf872b5e93a0f6b981b3adfc93e..6e9e14878383d861231f8611840d7f8e56e4ed4d 100644 | 
| --- a/src/x64/code-stubs-x64.cc | 
| +++ b/src/x64/code-stubs-x64.cc | 
| @@ -5990,26 +5990,26 @@ void StoreArrayLiteralElementStub::Generate(MacroAssembler* masm) { | 
| __ push(rdx); | 
| __ push(rdi);  // Return return address so that tail call returns to right | 
| // place. | 
| -  __ TailCallRuntime(Runtime::kStoreArrayLiteralElement, 5, 1); | 
| +  __ TailCallRuntime(Runtime::kStoreArrayLiteralElement, 5, 0); | 
|  | 
| if (!FLAG_trace_elements_transitions) { | 
| // Array literal has ElementsKind of FAST_DOUBLE_ELEMENTS. | 
| __ bind(&double_elements); | 
|  | 
| __ movq(r9, FieldOperand(rbx, JSObject::kElementsOffset)); | 
| -    __ SmiToInteger32(r10, rcx); | 
| +    __ SmiToInteger32(r11, rcx); | 
| __ StoreNumberToDoubleElements(rax, | 
| r9, | 
| -                                   r10, | 
| +                                   r11, | 
| xmm0, | 
| &slow_elements); | 
| __ jmp(&element_done); | 
|  | 
| // Array literal has ElementsKind of FAST_ELEMENTS and value is an object. | 
| __ bind(&fast_elements); | 
| -    __ SmiToInteger32(r10, rcx); | 
| +    __ SmiToInteger32(kScratchRegister, rcx); | 
| __ movq(rbx, FieldOperand(rbx, JSObject::kElementsOffset)); | 
| -    __ lea(rcx, FieldOperand(rbx, r10, times_pointer_size, | 
| +    __ lea(rcx, FieldOperand(rbx, kScratchRegister, times_pointer_size, | 
| FixedArrayBase::kHeaderSize)); | 
| __ movq(Operand(rcx, 0), rax); | 
| // Update the write barrier for the array store. | 
| @@ -6022,9 +6022,9 @@ void StoreArrayLiteralElementStub::Generate(MacroAssembler* masm) { | 
| // Array literal has ElementsKind of FAST_SMI_ONLY_ELEMENTS or | 
| // FAST_ELEMENTS, and value is Smi. | 
| __ bind(&smi_element); | 
| -    __ SmiToInteger32(r10, rcx); | 
| +    __ SmiToInteger32(kScratchRegister, rcx); | 
| __ movq(rbx, FieldOperand(rbx, JSObject::kElementsOffset)); | 
| -    __ movq(FieldOperand(rbx, r10, times_pointer_size, | 
| +    __ movq(FieldOperand(rbx, kScratchRegister, times_pointer_size, | 
| FixedArrayBase::kHeaderSize), rax); | 
| // Fall through | 
| __ bind(&element_done); | 
|  |