Developer Guide and Reference

Contents

_mm_cmp_sd

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.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804