PERF_REG_X86_XMM1 36 arch/x86/include/uapi/asm/perf_regs.h PERF_REG_X86_XMM1 = 34, PERF_REG_X86_XMM1 36 tools/arch/x86/include/uapi/asm/perf_regs.h PERF_REG_X86_XMM1 = 34,