Developer Guide and Reference

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_mm256_undefined_pd()

Returns a vector of four double precision floating point elements. No corresponding Intel® AVX instruction.

Syntax

extern __m256d _mm256_undefined_pd(void);
Description
This intrinsic returns a vector of four double precision floating point elements. The content of the vector is not specified. The prototype of this intrinsic is in the
immintrin
.h header file.
Returns
A vector of four double precision floating point elements.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for