_mm256_zeroall

Zeroes all YMM registers. The corresponding Intel® AVX instruction is VZEROALL.

Syntax

extern void _mm256_zeroall(void);

Arguments

None

Description

Zeroes all YMM registers. This intrinsic is useful to clear all the YMM registers when transitioning between Intel® AVX and legacy SSE instructions.

There is no transition penalty if an application clears the bits of all YMM registers (sets to ‘0’) via VZEROALL, the corresponding instruction for this intrinsic, before transitioning between Intel® AVX instructions and legacy SSE instructions.

Returns

Nothing