1// Copyright 2019 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5#include "go_asm.h"
6#include "go_tls.h"
7#include "textflag.h"
8
9// s390x can copy/zero 1-256 bytes with a single instruction,
10// so there's no need for these, except to satisfy the prototypes
11// in stubs.go.
12
13TEXT runtime·duffzero(SB),NOSPLIT|NOFRAME,$0-0
14	MOVD	$0, 2(R0)
15	RET
16
17TEXT runtime·duffcopy(SB),NOSPLIT|NOFRAME,$0-0
18	MOVD	$0, 2(R0)
19	RET
20