Hi all, The entries for some recently-added arch features were missing the cpuinfo string used in -march=native detection. Presumably the Linux kernel had not specified such a string at the time the GCC support was added. But I see that current versions of Linux do have strings for these features in the arch/arm64/kernel/cpuinfo.c file in the kernel tree.
This patch adds them. This fixes the strings for the f32mm and f64mm features
which I think were using the wrong string. The kernel exposes them with an
"sve" prefix.
Bootstrapped and tested on aarch64-none-linux-gnu.
Will push next week if there are no objections.
Thanks,
Kyrill
Signed-off-by: Kyrylo Tkachov <ktkac...@nvidia.com>
gcc/
* config/aarch64/aarch64-option-extensions.def (sve-b16b16,
f32mm, f64mm, sve2p1, sme-f64f64, sme-i16i64, sme-b16b16,
sme-f16f16, mops): Update FEATURE_STRING field.
0001-aarch64-Update-cpuinfo-strings-for-some-arch-feature.patch
Description: 0001-aarch64-Update-cpuinfo-strings-for-some-arch-feature.patch
