Initialize examines the processor and sets the relevant variables above.

Name returns the CPU name given by the vendor.

The booleans in ARM contain the correspondingly named cpu feature bit.

The booleans in ARM64 contain the correspondingly named cpu feature bit.

CacheLineSize is the CPU's assumed cache line size.

DebugOptions is set to true by the runtime if the OS supports reading GODEBUG early in runtime startup.

For ppc64(le), it is safe to check only for ISA level starting on ISA v3.00, since there are no optional categories.

The booleans in X86 contain the correspondingly named cpuid feature bit.

CacheLinePad is used to pad structs to avoid false sharing.