_mm256_mask_rorv_epi32
Classification
AVX-512, Shift, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VPRORVD ymm {k}, ymm, ymm
Synopsis
 _mm256_mask_rorv_epi32(__m256i src, __mmask8 k, __m256i a, __m256i b);
Description
Rotate the bits in each packed 32-bit integer in "a" to the right by the number of bits specified in the corresponding element of "b", and store the results in "dst" using writemask "k" (elements are copied from "src" when the corresponding mask bit is not set).
Operation
DEFINE RIGHT_ROTATE_DWORDS(src, count_src) {
	count := count_src % 32
	RETURN (src >>count) OR (src << (32 - count))
}
FOR j := 0 to 7
	i := j*32
	IF k[j]
		dst[i+31:i] := RIGHT_ROTATE_DWORDS(a[i+31:i], b[i+31:i])
	ELSE
		dst[i+31:i] := src[i+31:i]
	FI
ENDFOR
dst[MAX:256] := 0