cpu_has_mips_4
#ifndef cpu_has_mips_4
#define cpu_has_mips_4_5 (cpu_has_mips_4 | cpu_has_mips_5)
#define cpu_has_mips_4_5_r (cpu_has_mips_4 | cpu_has_mips_5_r)
if (cpu_has_mips_4)