__lsx_vmod_w
LSX intrinsic · group: Integer Computation
Synopsis
__m128i __lsx_vmod_w (__m128i a, __m128i b)
#include <lsxintrin.h>
Instruction: vmod.w vr, vr, vr
CPU Flags: LSX
Description
Compute the remainder of each signed 32-bit element in a divided by the corresponding element in b.
Operation
for (int i = 0; i < 4; i++) {
dst.word[i] = (b.word[i] == 0) ? 0 : ((s32)a.word[i] % (s32)b.word[i]);
}
Tested on real machine.
Latency and Throughput
| CPU | µarch | Latency | Throughput (IPC) |
|---|---|---|---|
| 3C5000 | LA464 | 11, 15 | 0.08(1/12) |
| 3A6000 | LA664 | 11, 13 | 0.18(1/5.5) |
| 3C6000 | LA664 | 11 | 0.22(1/4.5) |
| 2K1000LA | LA264 | 12, 16 | 0.05(1/20) |
| 2K3000 | LA364E | 12, 16 | 0.05(1/20) |