/* SPDX-License-Identifier: MIT
*
* Permission is hereby granted , free of charge , to any person
* obtaining a copy of this software and associated documentation
* files ( the " Software " ) , to deal in the Software without
* restriction , including without limitation the rights to use , copy ,
* modify , merge , publish , distribute , sublicense , and / or sell copies
* of the Software , and to permit persons to whom the Software is
* furnished to do so , subject to the following conditions :
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND ,
* EXPRESS OR IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY , FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT . IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM , DAMAGES OR OTHER LIABILITY , WHETHER IN AN
* ACTION OF CONTRACT , TORT OR OTHERWISE , ARISING FROM , OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE .
*
* Copyright :
* 2021 Zhi An Ng < zhin @ google . com > ( Copyright owned by Google , LLC )
* 2021 Evan Nemerson < evan @ nemerson . com >
*/
#if !defined (SIMDE_ARM_NEON_RSQRTS_H)
#define SIMDE_ARM_NEON_RSQRTS_H
#include "types.h"
#include "mls.h"
#include "mul_n.h"
#include "dup_n.h"
HEDLEY_DIAGNOSTIC_PUSH
SIMDE_DISABLE_UNWANTED_DIAGNOSTICS
SIMDE_BEGIN_DECLS_
SIMDE_FUNCTION_ATTRIBUTES
simde_float32_t
simde_vrsqrtss_f32(simde_float32_t a, simde_float32_t b) {
#if defined (SIMDE_ARM_NEON_A64V8_NATIVE)
return vrsqrtss_f32(a, b);
#else
return SIMDE_FLOAT32_C(0 .5 ) * (SIMDE_FLOAT32_C(3 .0 ) - (a * b));
#endif
}
#if defined (SIMDE_ARM_NEON_A64V8_ENABLE_NATIVE_ALIASES)
#undef vrsqrtss_f32
#define vrsqrtss_f32(a, b) simde_vrsqrtss_f32((a), (b))
#endif
SIMDE_FUNCTION_ATTRIBUTES
simde_float64_t
simde_vrsqrtsd_f64(simde_float64_t a, simde_float64_t b) {
#if defined (SIMDE_ARM_NEON_A64V8_NATIVE)
return vrsqrtsd_f64(a, b);
#else
return SIMDE_FLOAT64_C(0 .5 ) * (SIMDE_FLOAT64_C(3 .0 ) - (a * b));
#endif
}
#if defined (SIMDE_ARM_NEON_A64V8_ENABLE_NATIVE_ALIASES)
#undef vrsqrtsd_f64
#define vrsqrtsd_f64(a, b) simde_vrsqrtsd_f64((a), (b))
#endif
SIMDE_FUNCTION_ATTRIBUTES
simde_float32x2_t
simde_vrsqrts_f32(simde_float32x2_t a, simde_float32x2_t b) {
#if defined (SIMDE_ARM_NEON_A32V7_NATIVE)
return vrsqrts_f32(a, b);
#else
return
simde_vmul_n_f32(
simde_vmls_f32(
simde_vdup_n_f32(SIMDE_FLOAT32_C(3 .0 )),
a,
b),
SIMDE_FLOAT32_C(0 .5 )
);
#endif
}
#if defined (SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
#undef vrsqrts_f32
#define vrsqrts_f32(a, b) simde_vrsqrts_f32((a), (b))
#endif
SIMDE_FUNCTION_ATTRIBUTES
simde_float64x1_t
simde_vrsqrts_f64(simde_float64x1_t a, simde_float64x1_t b) {
#if defined (SIMDE_ARM_NEON_A64V8_NATIVE)
return vrsqrts_f64(a, b);
#else
return
simde_vmul_n_f64(
simde_vmls_f64(
simde_vdup_n_f64(SIMDE_FLOAT64_C(3 .0 )),
a,
b),
SIMDE_FLOAT64_C(0 .5 )
);
#endif
}
#if defined (SIMDE_ARM_NEON_A64V8_ENABLE_NATIVE_ALIASES)
#undef vrsqrts_f64
#define vrsqrts_f64(a, b) simde_vrsqrts_f64((a), (b))
#endif
SIMDE_FUNCTION_ATTRIBUTES
simde_float32x4_t
simde_vrsqrtsq_f32(simde_float32x4_t a, simde_float32x4_t b) {
#if defined (SIMDE_ARM_NEON_A32V7_NATIVE)
return vrsqrtsq_f32(a, b);
#else
return
simde_vmulq_n_f32(
simde_vmlsq_f32(
simde_vdupq_n_f32(SIMDE_FLOAT32_C(3 .0 )),
a,
b),
SIMDE_FLOAT32_C(0 .5 )
);
#endif
}
#if defined (SIMDE_ARM_NEON_A32V7_ENABLE_NATIVE_ALIASES)
#undef vrsqrtsq_f32
#define vrsqrtsq_f32(a, b) simde_vrsqrtsq_f32((a), (b))
#endif
SIMDE_FUNCTION_ATTRIBUTES
simde_float64x2_t
simde_vrsqrtsq_f64(simde_float64x2_t a, simde_float64x2_t b) {
#if defined (SIMDE_ARM_NEON_A64V8_NATIVE)
return vrsqrtsq_f64(a, b);
#else
return
simde_vmulq_n_f64(
simde_vmlsq_f64(
simde_vdupq_n_f64(SIMDE_FLOAT64_C(3 .0 )),
a,
b),
SIMDE_FLOAT64_C(0 .5 )
);
#endif
}
#if defined (SIMDE_ARM_NEON_A64V8_ENABLE_NATIVE_ALIASES)
#undef vrsqrtsq_f64
#define vrsqrtsq_f64(a, b) simde_vrsqrtsq_f64((a), (b))
#endif
SIMDE_END_DECLS_
HEDLEY_DIAGNOSTIC_POP
#endif /* !defined(SIMDE_ARM_NEON_RSQRTS_H) */
Messung V0.5 in Prozent C=99 H=100 G=99
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-08-28)
¤
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