[Bug target/123172] explicit __atomic_*() calls on _BitInt(>64) assume the data is 16-byte aligned

jakub at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Wed Dec 17 11:38:45 GMT 2025


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123172

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
That is IMHO user error.  You need to align _BitInt appropriately, exactly like
you need to align long long for ia32 to use atomics on it.


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