GCC 10 Lands Support For -march=tigerlake & -march=cooperlake

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...