Intel® C++ Compiler Classic Developer Guide and Reference
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Visible to Intel only — GUID: GUID-9FD46319-E2F2-41F0-A15A-AC102C18F9B2
Visible to Intel only — GUID: GUID-9FD46319-E2F2-41F0-A15A-AC102C18F9B2
_mm_invsqrt_ps, _mm256_invsqrt_ps
Calculates inverse square root value. Vector variant of invsqrt(x) function for a 128-bit/256-bit vector argument of float32 values.
Syntax
extern __m128 _mm_invsqrt_ps(__m128 v1); |
extern __m256 _mm256_invsqrt_ps(__m256 v1); |
Arguments
v1 |
vector with float32 values |
Description
Calculates the inverse square root of vector v1 elements.
Returns
128-bit/256-bit vector with the result of the operation.
Many routines in the Short Vector Math Library (SVML) are more optimized for Intel® microprocessors than for non-Intel microprocessors.