[Bug target/114978] [14/15 regression] 548.exchange2_r 14%-28% regressions on Loongarch64 after gcc 14 snapshot 20240317

[xry111 at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114978

--- Comment #13 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
(In reply to Chen Chen from comment #12)

> No. I used system default gcc.

AOSC backports *many* changes not in upstream GCC 13.2 to their "13.2":
https://github.com/AOSC-Dev/aosc-os-abbs/tree/stable/core-devel/gcc/01-runtime/patches

So the default GCC is simply not GCC 13.2.