return uintptr(frame.fn.args)
	}
	// This is an uncommon and complicated case. Fall back to fully
	// fetching the argument map to compute its size.
	argMap, _ := frame.argMapInternal()
	return uintptr(argMap.n) * goarch.PtrSize
}

// argMapInternal is used internally by stkframe to fetch special
// argument maps.
//
// argMap.n is always populated with the size of the argument map.
//