__lsx_vslei_w
LSX intrinsic · group: Integer Comparison
Synopsis
__m128i __lsx_vslei_w (__m128i a, imm_n16_15 imm)
#include <lsxintrin.h>
Instruction: vslei.w vr, vr, imm
CPU Flags: LSX
Description
Compare the signed 32-bit elements in a and the sign-extended imm, store all-ones to dst if corresponding element in a is less than or equal to imm, zero otherwise.
Operation
for (int i = 0; i < 4; i++) {
dst.word[i] = ((s32)a.word[i] <= imm) ? 0xFFFFFFFF : 0;
}
Tested on real machine.
Latency and Throughput
| CPU | µarch | Latency | Throughput (IPC) |
|---|---|---|---|
| 3C5000 | LA464 | 1 | 2 |
| 3A6000 | LA664 | 1 | 4 |
| 3C6000 | LA664 | 1 | 4 |
| 2K1000LA | LA264 | 1 | 1 |
| 2K3000 | LA364E | 1 | 1 |