__lasx_xbz_v
LASX intrinsic · group: Branch
Synopsis
int __lasx_xbz_v (__m256i a)
#include <lasxintrin.h>
Instruction: xvseteqz.v fcc, xr; bcnez
CPU Flags: LASX
Description
Expected to be used in branches: branch if the whole vector a equals to zero.
Operation
dst = a.qword[0] == 0 && a.qword[1] == 0;
Tested on real machine.
Latency and Throughput
| CPU | µarch | Latency | Throughput (IPC) |
|---|---|---|---|
| 3C5000 | LA464 | N/A | 2 |
| 3A6000 | LA664 | N/A | 2 |
| 3C6000 | LA664 | N/A | 2 |