PERF_REG_MIPS_MAX
if (mask & ~((1ull << PERF_REG_MIPS_MAX) - 1))
#define PERF_REGS_MASK ((1ULL << PERF_REG_MIPS_MAX) - 1)
#define PERF_REGS_MAX PERF_REG_MIPS_MAX
if (perf_regnum < 0 || perf_regnum >= PERF_REG_MIPS_MAX)