Intel® C++ Compiler Classic Developer Guide and Reference

ID 767249
Date 12/16/2022
Public

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

Compares scalar float64 vectors. The corresponding Intel® AVX instruction is VCMPSD.

Syntax

extern __m128d _mm_cmp_sd(__m128d m1, __m128d m2, const int predicate);

Arguments

m1

float64 vector used for the operation

m2

float64 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 double-precision floating-point values (float64 values) in the first source operand, m1, and the second source operand, m2, and returns the result.

The comparison predicate parameter (immediate operand) specifies the type of comparison performed on each of the pairs of values.

Returns

Result of the compare operation.