Intel® C++ Compiler 16.0 User and Reference Guide

_mm512_nearbyint_ps/ _mm512_mask_nearbyint_ps

Rounds off to nearest integer in floating point format. Vector variant of nearbyint(x) function for a float32 argument.   This intrinsic only applies to Intel® Many Integrated Core Architecture (Intel® MIC Architecture).

Syntax

Without Mask

extern _m512 __cdecl _mm512_nearbyint_ps(_m512 v1);

With Mask

extern _m512 __cdecl _mm512_mask_nearbyint_ps(_m512 v1_old, __mmask16 k1, _m512 v1);

Parameters

v1 vector of float32 values
v1_old Source vector that retains old values of the destination vector; the resulting vector gets corresponding elements from v1_old for zero mask bits
k1 Writemask; only those elements of the source vector with corresponding bit set to '1' in the k1 mask are computed and stored in the result; elements in the result vector corresponding to zero bit in k1 are copied from corresponding elements of vector v1_old

Description

Rounds off the elements of vector v1 to the nearest integer value in floating point format without raising the inexact exception.

The masked variant has two additional arguments: v1_old and k1 . Those elements of v1 with the corresponding bit clear in vector mask k1 are not used in the computation. Instead, the corresponding element from v1_old is copied to the resulting vector.

Returns

Returns the result of the operation.