__lasx_xvneg_w
LASX intrinsic · group: Integer Computation
Synopsis
__m256i __lasx_xvneg_w (__m256i a)
#include <lasxintrin.h>
Instruction: xvneg.w xr, xr
CPU Flags: LASX
Description
Negate 32-bit elements in a and save the result in dst.
Operation
for (int i = 0; i < 8; i++) {
dst.word[i] = -a.word[i];
}
Tested on real machine.
Latency and Throughput
| CPU | µarch | Latency | Throughput (IPC) |
|---|---|---|---|
| 3C5000 | LA464 | 1 | 2 |
| 3A6000 | LA664 | 1 | 4 |
| 3C6000 | LA664 | 1 | 4 |