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math: Remove bogus math implementations

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The exp10, exp10l, fma, fmaf, and fmal default implementation do not
implement the appropriate semantics nor with an reasonable accuracy.
They are also not used by any supported port.
This commit is contained in:
Adhemerval Zanella 2024-01-30 13:54:27 -03:00
parent 42cc619dfb
commit 9c61303ebb
5 changed files with 0 additions and 164 deletions
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33
math/e_exp10.c
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@ -1,33 +0,0 @@
/* Copyright (C) 1998-2024 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/>. */
#include <math.h>
#include <math_private.h>
#include <float.h>
#include <libm-alias-finite.h>
double
__ieee754_exp10 (double arg)
{
if (isfinite (arg) && arg < DBL_MIN_10_EXP - DBL_DIG - 10)
return DBL_MIN * DBL_MIN;
else
/* This is a very stupid and inprecise implementation. It'll get
replaced sometime (soon?). */
return __ieee754_exp (M_LN10 * arg);
}
libm_alias_finite (__ieee754_exp10, __exp10)

33
math/e_exp10l.c
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/* Copyright (C) 1998-2024 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/>. */
#include <math.h>
#include <math_private.h>
#include <float.h>
#include <libm-alias-finite.h>
long double
__ieee754_exp10l (long double arg)
{
if (isfinite (arg) && arg < LDBL_MIN_10_EXP - LDBL_DIG - 10)
return LDBL_MIN * LDBL_MIN;
else
/* This is a very stupid and inprecise implementation. It'll get
replaced sometime (soon?). */
return __ieee754_expl (M_LN10l * arg);
}
libm_alias_finite (__ieee754_exp10, __exp10)

36
math/s_fma.c
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@ -1,36 +0,0 @@
/* Compute x * y + z as ternary operation.
Copyright (C) 1997-2024 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/>. */
#define NO_MATH_REDIRECT
#define dfmal __hide_dfmal
#define f32xfmaf64 __hide_f32xfmaf64
#include <math.h>
#undef dfmal
#undef f32xfmaf64
#include <libm-alias-double.h>
#include <math-narrow-alias.h>
double
__fma (double x, double y, double z)
{
return (x * y) + z;
}
#ifndef __fma
libm_alias_double (__fma, fma)
libm_alias_double_narrow (__fma, fma)
#endif

30
math/s_fmaf.c
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/* Compute x * y + z as ternary operation.
Copyright (C) 1997-2024 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/>. */
#define NO_MATH_REDIRECT
#include <math.h>
#include <libm-alias-float.h>
float
__fmaf (float x, float y, float z)
{
return (x * y) + z;
}
#ifndef __fmaf
libm_alias_float (__fma, fma)
#endif

32
math/s_fmal.c
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/* Compute x * y + z as ternary operation.
Copyright (C) 1997-2024 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/>. */
#define NO_MATH_REDIRECT
#define f64xfmaf128 __hide_f64xfmaf128
#include <math.h>
#undef f64xfmaf128
#include <libm-alias-ldouble.h>
#include <math-narrow-alias.h>
long double
__fmal (long double x, long double y, long double z)
{
return (x * y) + z;
}
libm_alias_ldouble (__fma, fma)
libm_alias_ldouble_narrow (__fma, fma)