git: 1c7e291da65a - stable/15 - libmd aarch64: Use ands instead of bics to round down the length
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Date: Fri, 24 Apr 2026 17:55:51 UTC
The branch stable/15 has been updated by jhb:
URL: https://cgit.FreeBSD.org/src/commit/?id=1c7e291da65a1dd30edc59e6ecc4b5bdc5e49af2
commit 1c7e291da65a1dd30edc59e6ecc4b5bdc5e49af2
Author: John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2026-02-09 16:26:29 +0000
Commit: John Baldwin <jhb@FreeBSD.org>
CommitDate: 2026-04-24 15:32:43 +0000
libmd aarch64: Use ands instead of bics to round down the length
GNU as does not accept bics with two register operands but instead
requires three register operands. However, clang assembles the bics
instruction to ands anyway, so just use ands directly.
Reviewed by: fuz
Differential Revision: https://reviews.freebsd.org/D55155
(cherry picked from commit 244f498074b5574d18d4518583863580498b8d3b)
---
lib/libmd/aarch64/md5block.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/libmd/aarch64/md5block.S b/lib/libmd/aarch64/md5block.S
index b928c8dd795a..297db7f6bdbd 100644
--- a/lib/libmd/aarch64/md5block.S
+++ b/lib/libmd/aarch64/md5block.S
@@ -134,7 +134,7 @@ d_ .req m5
stp x23, x24, [sp, #0x20]
stp x25, x26, [sp, #0x30]
- bics len, len, #63 // length in blocks
+ ands len, len, #~63 // length in blocks
add end, buf, len // end pointer
beq .Lend // was len == 0 after BICS?