gcc doesn't know avx512pf

[limann77]

[COMMAND] gcc -c ./cython-blis/blis/_src/kernels/skx/3/bli_sgemm_skx_asm_32x12_l2.c -o /tmp/tmptv5zq0gs/bli_sgemm_skx_asm_32x12_l2.o -O3 -mavx512f -mavx512dq -mavx512bw -mavx512vl -mfpmath=sse -march=skylake-avx512 -fPIC -std=c99 -fvisibility=default -D_POSIX_C_SOURCE=200112L -DBLIS_VERSION_STRING="0.7.0" -DBLIS_IS_BUILDING_LIBRARY -Iinclude/linux-x86_64 -I./frame/3/ -I./frame/ind/ukernels/ -I./frame/3/ -I./frame/1m/ -I./frame/1f/ -I./frame/1/ -I./frame/include -I./cython-blis/blis/_src/include/linux-x86_64
[COMMAND] gcc -c ./cython-blis/blis/_src/kernels/knl/1m/bli_dpackm_knl_asm_24x8.c -o /tmp/tmptv5zq0gs/bli_dpackm_knl_asm_24x8.o -O3 -mavx512f -mavx512pf -mfpmath=sse -march=knl -fPIC -std=c99 -fvisibility=default -D_POSIX_C_SOURCE=200112L -DBLIS_VERSION_STRING="0.7.0" -DBLIS_IS_BUILDING_LIBRARY -Iinclude/linux-x86_64 -I./frame/3/ -I./frame/ind/ukernels/ -I./frame/3/ -I./frame/1m/ -I./frame/1f/ -I./frame/1/ -I./frame/include -I./cython-blis/blis/_src/include/linux-x86_64
gcc: Fehler: unbekannte Kommandozeilenoption »-mavx512pf«; meinten Sie »-mavx512f«?

Clang supports this option, but GCC 15 not:

ifeq ($(CC_VENDOR),clang)
CKVECFLAGS     := -mavx512f -mavx512pf -mfpmath=sse -march=knl

Are these kernels for Intel Xeon Phi Knights Landing (KNL)?

Also reported by @otakutyrant