[Bug target/122078] libatomic is inconsistent with GCC intrinsic __atomic_test_and_set

[fede.tft at miosix dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122078

--- Comment #8 from Federico Terraneo <fede.tft at miosix dot org> ---
I tried sending the patch to gcc-patches
(https://gcc.gnu.org/pipermail/gcc-patches/2025-November/699826.html) for
review but did not get a reply, I'll try sending a ping.