__lsx_vmaxi_du
LSX intrinsic · group: Integer Computation
Synopsis
__m128i __lsx_vmaxi_du (__m128i a, imm0_31 imm)
#include <lsxintrin.h>
Instruction: vmaxi.du vr, vr, imm
CPU Flags: LSX
Description
Compute elementwise maximum for unsigned 64-bit elements in a and the zero-extended imm.
Operation
for (int i = 0; i < 2; i++) {
dst.dword[i] = max((u64)a.dword[i], (u64)imm);
}
Tested on real machine.
Latency and Throughput
| CPU | µarch | Latency | Throughput (IPC) |
|---|---|---|---|
| 3C5000 | LA464 | 2 | 2 |
| 3A6000 | LA664 | 2 | 4 |
| 3C6000 | LA664 | 2 | 4 |
| 2K1000LA | LA264 | 2 | 1 |
| 2K3000 | LA364E | 2 | 1 |