华为计算微信公众号
华为计算微博
华为计算今日头条
请教一下,我在一台鲲鹏920的主机上编译了AvxToNeon(https://github.com/kunpengcompute/AvxToNeon)自带的tests程序。
但是反汇编test程序却没有找到neon intrinsics接口的汇编指令,如VLD, VADD, VMUL等。是什么原因呢?
另外,为什么鲲鹏920上没看到neon或vfp的feature呢??是需要设置什么开关么?谢谢
[root@my-srv tests]# lscpu Architecture: aarch64 CPU op-mode(s): 64-bit Byte Order: Little Endian CPU(s): 16 On-line CPU(s) list: 0-15 Thread(s) per core: 1 Core(s) per socket: 8 Socket(s): 2 NUMA node(s): 2 Vendor ID: HiSilicon Model: 0 Model name: Kunpeng-920 Stepping: 0x1 CPU max MHz: 2400.0000 CPU min MHz: 2400.0000 BogoMIPS: 200.00 L1d cache: 1 MiB L1i cache: 1 MiB L2 cache: 8 MiB L3 cache: 64 MiB NUMA node0 CPU(s): 0-7 NUMA node1 CPU(s): 8-15 Vulnerability Itlb multihit: Not affected Vulnerability L1tf: Not affected Vulnerability Mds: Not affected Vulnerability Meltdown: Not affected Vulnerability Spec store bypass: Vulnerable Vulnerability Spectre v1: Mitigation; __user pointer sanitization Vulnerability Spectre v2: Not affected Vulnerability Tsx async abort: Not affected Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma dcpop asimddp asimdfhm [root@my-srv tests]# head /proc/cpuinfo processor : 0 BogoMIPS : 200.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma dcpop asimddp asimdfhm CPU implementer : 0x48 CPU architecture: 8 CPU variant : 0x1 CPU part : 0xd01 CPU revision : 0 processor : 1
我要发帖子
请教一下,我在一台鲲鹏920的主机上编译了AvxToNeon(https://github.com/kunpengcompute/AvxToNeon)自带的tests程序。
但是反汇编test程序却没有找到neon intrinsics接口的汇编指令,如VLD, VADD, VMUL等。是什么原因呢?
另外,为什么鲲鹏920上没看到neon或vfp的feature呢??是需要设置什么开关么?谢谢