https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103966
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
__atomic_*/__sync_* loads and stores are (intentionally) MEM_VOLATILE_P, which
is why combine gives up on them and similarly peephole2.
