_mm512_prefetch_i32scatter_ps
Classification
AVX-512, Store, CPUID Test: AVX512PF
Header File
Instruction
VSCATTERPF0DPS m512
Synopsis
_mm512_prefetch_i32scatter_ps(void* base_addr, __m512i vindex, int scale, int hint);
Description
Prefetches 16 single-precision (32-bit) floating-point elements in memory starting at location "base_addr" at packed 32-bit integer indices stored in "vindex" scaled by "scale". The "hint" parameter may be 1 (_MM_HINT_T0) for prefetching to L1 cache, or 2 (_MM_HINT_T1) for prefetching to L2 cache.
Operation
FOR j := 0 to 15
i := j*32
m := j*32
addr := base_addr + SignExtend64(vindex[m+31:m]) * ZeroExtend64(scale) * 8
Prefetch(MEM[addr+31:addr], hint)
ENDFOR