Intel® C++ Compiler Classic Developer Guide and Reference

ID 767249
Date 12/16/2022
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

<span class='option'> _mm_cmp_ss</span>

Compares scalar float32 values. The corresponding Intel® AVX instruction is VCMPSS.

Syntax

extern __m128 _mm_cmp_ss(__m128 m1, __m128 m2, const int predicate);

Arguments

m1

float32 vector used for the operation

m2

float32 vector also used for the operation

predicate

an immediate operand that specifies the type of comparison to be performed of the packed values; see immintrin.h file for the values to specify the type of comparison

Description

Performs a compare operation of the low single-precision floating-point values (float32 values) in the first source operand, m1, and the second source operand, m2, and returns the results.

The comparison predicate parameter (immediate) specifies the type of comparison performed.

Returns

Result of the compare operation.