__lsx_vfdiv_d
LSX intrinsic · group: Floating Point Computation
Synopsis
__m128d __lsx_vfdiv_d (__m128d a, __m128d b)
#include <lsxintrin.h>
Instruction: vfdiv.d vr, vr, vr
CPU Flags: LSX
Description
Divide corresponding double precision floating point elements in a by elements in b.
Operation
for (int i = 0; i < 2; i++) {
dst.fp64[i] = a.fp64[i] / b.fp64[i];
}
Tested on real machine.
Latency and Throughput
| CPU | µarch | Latency | Throughput (IPC) |
|---|---|---|---|
| 3C5000 | LA464 | 8, 16.5 | 0.08(1/12.5) |
| 3A6000 | LA664 | 8, 21.5 | 0.25(1/4) |
| 3C6000 | LA664 | 8, 16.5 | 0.33(1/3) |
| 2K1000LA | LA264 | 9, 24 | 0.04(1/24) |
| 2K3000 | LA364E | 9, 24 | 0.04(1/24) |