Introduce DropUnderReturnAddress for x64 port.

src/x64/builtins-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 731 matching lines @@
 
     // Preserve registers across notification, this is important for compiled
     // stubs that tail call the runtime on deopts passing their parameters in
     // registers.
     __ Pushad();
     __ CallRuntime(Runtime::kHiddenNotifyStubFailure, 0, save_doubles);
     __ Popad();
     // Tear down internal frame.
   }
 
-  __ Pop(MemOperand(rsp, 0));  // Ignore state offset
+  __ DropUnderReturnAddress(1);  // Ignore state offset
   __ ret(0);  // Return to IC Miss stub, continuation still on stack.
 }
 
 
 void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) {
   Generate_NotifyStubFailureHelper(masm, kDontSaveFPRegs);
 }
 
 
 void Builtins::Generate_NotifyStubFailureSaveDoubles(MacroAssembler* masm) {
@@ skipping 156 matching lines @@
   //     receiver, so overwrite the first argument which will ultimately
   //     become the receiver.
   __ movp(args.GetArgumentOperand(1), rdi);
 
   // 4. Shift arguments and return address one slot down on the stack
   //    (overwriting the original receiver).  Adjust argument count to make
   //    the original first argument the new receiver.
   __ bind(&shift_arguments);
   { Label loop;
     __ movp(rcx, rax);
+    StackArgumentsAccessor args(rsp, rcx);
     __ bind(&loop);
-    __ movp(rbx, Operand(rsp, rcx, times_pointer_size, 0));
-    __ movp(Operand(rsp, rcx, times_pointer_size, 1 * kPointerSize), rbx);
+    __ movp(rbx, args.GetArgumentOperand(1));
+    __ movp(args.GetArgumentOperand(0), rbx);
     __ decp(rcx);
-    __ j(not_sign, &loop);  // While non-negative (to copy return address).
-    __ popq(rbx);  // Discard copy of return address.
+    __ j(not_zero, &loop);  // While non-zero.
+    __ DropUnderReturnAddress(1, rbx);  // Drop one slot under return address.
     __ decp(rax);  // One fewer argument (first argument is new receiver).
   }
 
   // 5a. Call non-function via tail call to CALL_NON_FUNCTION builtin,
   //     or a function proxy via CALL_FUNCTION_PROXY.
   { Label function, non_proxy;
     __ testp(rdx, rdx);
     __ j(zero, &function);
     __ Set(rbx, 0);
     __ cmpp(rdx, Immediate(1));
@@ skipping 585 matching lines @@
   __ bind(&ok);
   __ ret(0);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64