_mm_permutex2var_pd
Classification
AVX-512, Miscellaneous, CPUID Test: AVX512F
Header File
Instruction
VPERMI2PD xmm, xmm, xmm
Synopsis
_mm_permutex2var_pd(__m128d a, __m128i idx, __m128d b);
Description
Shuffle double-precision (64-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 1
i := j*64
off := idx[i]*64
dst[i+63:i] := idx[i+1] ? b[off+63:off] : a[off+63:off]
ENDFOR
dst[MAX:128] := 0