PERF_REG_ARM64_X4   29 tools/perf/arch/arm64/include/perf_regs.h 	case PERF_REG_ARM64_X4:
PERF_REG_ARM64_X4   23 tools/perf/arch/arm64/util/unwind-libunwind.c 		return PERF_REG_ARM64_X4;