The GNU toolchain has already been preparing for Cooperlake CPUs as the successor to Cascadelake as well as supporting the new instruction set extensions, but finally today the support for -march=cooperlake was merged to GCC 10 for conveniently exposing the new CPU target in the GNU Compiler Collection. At the same time, -march=tigerlake was also added…

Source: Phoronix – GCC 10 Lands Support For -march=tigerlake & -march=cooperlake