https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113233
--- Comment #4 from Xi Ruoyao <xry111 at gcc dot gnu.org> --- (In reply to Jan Hubicka from comment #3) > > Confirm. But option save/restore has been always implemented: > > > > .section .gnu.lto_.opts,"",@progbits > > .ascii "'-fno-openmp' '-fno-openacc' '-fno-pie' '-fcf-protection" > > .ascii "=none' '-mabi=lp64d' '-march=loongarch64' '-mfpu=64' '-m" > > .ascii "simd=lasx' '-mcmodel=normal' '-mtune=loongarch64' '-flto" > > .ascii "'\000" > > > > So -msimd=lasx is correctly recorded. Not sure why it does not work. > > With LTO we need to mix code compiled with different sets of options. > For this reason we imply for every function defition and optimization > and target attribute which record the flags. So it seems target > attribute is likely broken for this flag. Target attribute is not implemented for LoongArch. And I don't think it's a good idea to implement it in stage 3.
