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Fix some register usage

This commit is contained in:
skrll 2022-06-18 07:55:19 +00:00
parent 34d3d51550
commit 6e894b09e2
1 changed files with 4 additions and 3 deletions
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7
common/lib/libc/arch/aarch64/atomic/__aarch64_lse.S
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@ -1,4 +1,4 @@
/* $NetBSD: __aarch64_lse.S,v 1.3 2022/06/16 08:21:57 skrll Exp $ */
/* $NetBSD: __aarch64_lse.S,v 1.4 2022/06/18 07:55:19 skrll Exp $ */
/*-
* Copyright (c) 2021 The NetBSD Foundation, Inc.
@ -174,8 +174,9 @@ ENTRY_NP(CASP_FUNC)
ret
99:
#endif
mov x4, x0 /* need x0 for return value */
1: LDXP x5, x6, [x4] /* load old value */
mov x5, x0 /* need x0 for return value */
mov x6, x1 /* need x1 for return value */
1: LDXP x0, x1, [x4] /* load old value */
cmp x5, x0 /* compare */
b.ne 2f /* not equal? return */
cmp x6, x1