git: 5faceb84142f - main - __builtin_align_down: Cast value to __uintptr_t in the fallback

The branch main has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=5faceb84142f3c9886f38a03dd5214785ac6961f

commit 5faceb84142f3c9886f38a03dd5214785ac6961f
Author:     John Baldwin <jhb@FreeBSD.org>
AuthorDate: 2026-02-24 20:24:17 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2026-02-24 20:24:17 +0000

    __builtin_align_down: Cast value to __uintptr_t in the fallback
    
    This matches the behavior of the fallbacks for __builtin_align_up
    and __builtin_is_aligned.
    
    Reviewed by:    arichardson, ngie, kib
    Differential Revision:  https://reviews.freebsd.org/D55161
---
 sys/sys/cdefs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/sys/cdefs.h b/sys/sys/cdefs.h
index ea6a92ad0056..132d4809b0ed 100644
--- a/sys/sys/cdefs.h
+++ b/sys/sys/cdefs.h
@@ -649,7 +649,7 @@
 #endif
 #if !__has_builtin(__builtin_align_down)
 #define __builtin_align_down(x, align)	\
-	((__typeof__(x))((x)&(~((align)-1))))
+	((__typeof__(x))((__uintptr_t)(x)&(~((align)-1))))
 #endif
 
 #define __align_up(x, y) __builtin_align_up(x, y)