_mm_permutex2var_ps
Classification
AVX-512, Miscellaneous, CPUID Test: AVX512F
Header File
Instruction
VPERMI2PS xmm, xmm, xmm
Synopsis
_mm_permutex2var_ps(__m128 a, __m128i idx, __m128 b);
Description
Shuffle single-precision (32-bit) floating-point elements in "a" and "b" using the corresponding selector and index in "idx", and store the results in "dst".
Operation
FOR j := 0 to 3
i := j*32
off := idx[i+1:i]*32
dst[i+31:i] := idx[i+2] ? b[off+31:off] : a[off+31:off]
ENDFOR
dst[MAX:128] := 0