Developer Guide and Reference

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_mm256_broadcast_ss, _mm_broadcast_ss

Loads and broadcasts 256/128-bit scalar single-precision floating point values to a 256/128-bit destination operand. The corresponding Intel® AVX instruction is
VBROADCASTSS
.

Syntax

extern __m256 _mm256_broadcast_ss(float const *a);
extern __m128 _mm_broadcast_ss(float const *a);
Arguments
*a
pointer to a memory location that can hold constant 256-bit or 128-bit float32 values
Description
Loads scalar single-precision floating-point values from the specified address pointed to by
a
, and broadcasts it to elements in the destination vector.
The
_m256_broadcast_ss
intrinsic broadcasts the loaded values to all eight elements in the 256-bit destination vector.
The
_mm_broadcast_ss
intrinsic broadcasts the loaded values to all four elements in the 128-bit destination vector.
Returns
Result of the load and broadcast operation.