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

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

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

--- Comment #36 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Chen Chen from comment #35)
> 
> 1. unknown patch committed between 20250105-20250112 on gcc15: works for
> gcc15, possibly also works for gcc14? If yes, can it be backported to gcc14?

r15-6657-g405c99c17210a5 is most likely canidate as it was explicitly designed
for exchange2_r and it falls directly in your time frame. And I doubt it can be
backported to GCC 14.