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/* Utilities for SVE libmvec routines.
Copyright (C) 2023-2025 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef SV_MATH_H
#define SV_MATH_H
#include <arm_sve.h>
#include <stdbool.h>
#include "vecmath_config.h"
#define SV_NAME_F1(fun) _ZGVsMxv_##fun##f
#define SV_NAME_D1(fun) _ZGVsMxv_##fun
#define SV_NAME_F2(fun) _ZGVsMxvv_##fun##f
#define SV_NAME_D2(fun) _ZGVsMxvv_##fun
/* Double precision. */
static inline svint64_t
sv_s64 (int64_t x)
{
return svdup_n_s64 (x);
}
static inline svuint64_t
sv_u64 (uint64_t x)
{
return svdup_n_u64 (x);
}
static inline svfloat64_t
sv_f64 (double x)
{
return svdup_n_f64 (x);
}
static inline svfloat64_t
sv_call_f64 (double (*f) (double), svfloat64_t x, svfloat64_t y, svbool_t cmp)
{
svbool_t p = svpfirst (cmp, svpfalse ());
while (svptest_any (cmp, p))
{
double elem = svclastb_n_f64 (p, 0, x);
elem = (*f) (elem);
svfloat64_t y2 = svdup_n_f64 (elem);
y = svsel_f64 (p, y2, y);
p = svpnext_b64 (cmp, p);
}
return y;
}
static inline svfloat64_t
sv_call2_f64 (double (*f) (double, double), svfloat64_t x1, svfloat64_t x2,
svfloat64_t y, svbool_t cmp)
{
svbool_t p = svpfirst (cmp, svpfalse ());
while (svptest_any (cmp, p))
{
double elem1 = svclastb_n_f64 (p, 0, x1);
double elem2 = svclastb_n_f64 (p, 0, x2);
double ret = (*f) (elem1, elem2);
svfloat64_t y2 = svdup_n_f64 (ret);
y = svsel_f64 (p, y2, y);
p = svpnext_b64 (cmp, p);
}
return y;
}
static inline svuint64_t
sv_mod_n_u64_x (svbool_t pg, svuint64_t x, uint64_t y)
{
svuint64_t q = svdiv_n_u64_x (pg, x, y);
return svmls_n_u64_x (pg, x, q, y);
}
/* Single precision. */
static inline svint32_t
sv_s32 (int32_t x)
{
return svdup_n_s32 (x);
}
static inline svuint32_t
sv_u32 (uint32_t x)
{
return svdup_n_u32 (x);
}
static inline svfloat32_t
sv_f32 (float x)
{
return svdup_n_f32 (x);
}
static inline svfloat32_t
sv_call_f32 (float (*f) (float), svfloat32_t x, svfloat32_t y, svbool_t cmp)
{
svbool_t p = svpfirst (cmp, svpfalse ());
while (svptest_any (cmp, p))
{
float elem = svclastb_n_f32 (p, 0, x);
elem = f (elem);
svfloat32_t y2 = svdup_n_f32 (elem);
y = svsel_f32 (p, y2, y);
p = svpnext_b32 (cmp, p);
}
return y;
}
static inline svfloat32_t
sv_call2_f32 (float (*f) (float, float), svfloat32_t x1, svfloat32_t x2,
svfloat32_t y, svbool_t cmp)
{
svbool_t p = svpfirst (cmp, svpfalse ());
while (svptest_any (cmp, p))
{
float elem1 = svclastb_n_f32 (p, 0, x1);
float elem2 = svclastb_n_f32 (p, 0, x2);
float ret = f (elem1, elem2);
svfloat32_t y2 = svdup_n_f32 (ret);
y = svsel_f32 (p, y2, y);
p = svpnext_b32 (cmp, p);
}
return y;
}
#endif
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