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Diffstat (limited to 'src/runtime/duff_s390x.s')
| -rw-r--r-- | src/runtime/duff_s390x.s | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/runtime/duff_s390x.s b/src/runtime/duff_s390x.s new file mode 100644 index 0000000..95d492a --- /dev/null +++ b/src/runtime/duff_s390x.s @@ -0,0 +1,19 @@ +// Copyright 2019 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +#include "go_asm.h" +#include "go_tls.h" +#include "textflag.h" + +// s390x can copy/zero 1-256 bytes with a single instruction, +// so there's no need for these, except to satisfy the prototypes +// in stubs.go. + +TEXT runtime·duffzero(SB),NOSPLIT|NOFRAME,$0-0 + MOVD $0, 2(R0) + RET + +TEXT runtime·duffcopy(SB),NOSPLIT|NOFRAME,$0-0 + MOVD $0, 2(R0) + RET |