[Bug target/123320] [Trunk] Loongarch64: ICE at -Os during RTL pass: peephole2

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123320

--- Comment #4 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
I think it's better to add them for <optab:arith_w>si3 and addsi3 cases all
togother.