Remove ancient __signbit inlines

Remove __signbit inlines from mathinline.h.  Math.h already uses
the builtin when supported, so additional inlines are only used
on pre 4.0 GCCs.  Similarly remove ancient copysign and fabs
inlines.

	* sysdeps/alpha/fpu/bits/mathinline.h: Delete file.
	* sysdeps/ia64/fpu/bits/mathinline.h: Delete file.
	* sysdeps/m68k/coldfire/fpu/bits/mathinline.h: Delete file.
	* sysdeps/m68k/m680x0/fpu/bits/mathinline.h: (__signbitf): Remove.
	(__signbit): Remove.
	(__signbitl): Remove.
	* sysdeps/powerpc/bits/mathinline.h (__signbitf): Remove.
	(__signbit): Remove.
	(__signbitl): Remove.
	* sysdeps/s390/fpu/bits/mathinline.h: (__signbitf): Remove.
	(__signbit): Remove.
	(__signbitl): Remove
	* sysdeps/sparc/fpu/bits/mathinline.h (__signbitf): Remove.
	(__signbit): Remove.
	(__signbitl): Remove.
	* sysdeps/tile/bits/mathinline.h: Delete file.
	* sysdeps/x86/fpu/bits/mathinline.h (__signbitf): Remove.
	(__signbit): Remove.
	(__signbitl): Remove.

1 files changed, 0 insertions, 110 deletions

diff --git a/sysdeps/alpha/fpu/bits/mathinline.h b/sysdeps/alpha/fpu/bits/mathinline.h
deleted file mode 100644
index dad99d3f64..0000000000
--- a/sysdeps/alpha/fpu/bits/mathinline.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/* Inline math functions for Alpha.
-   Copyright (C) 1996-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by David Mosberger-Tang.
-
-   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
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef _MATH_H
-# error "Never use <bits/mathinline.h> directly; include <math.h> instead."
-#endif
-
-#ifndef __extern_inline
-# define __MATH_INLINE __inline
-#else
-# define __MATH_INLINE __extern_inline
-#endif
-
-#if (!defined __NO_MATH_INLINES || defined __LIBC_INTERNAL_MATH_INLINES) \
-    && defined __OPTIMIZE__
-
-#if !__GNUC_PREREQ (4, 0)
-# define __inline_copysign(NAME, TYPE)					\
-__MATH_INLINE TYPE							\
-__NTH (NAME (TYPE __x, TYPE __y))					\
-{									\
-  TYPE __z;								\
-  __asm ("cpys %1, %2, %0" : "=f" (__z) : "f" (__y), "f" (__x));	\
-  return __z;								\
-}
-
-__inline_copysign (__copysignf, float)
-__inline_copysign (copysignf, float)
-__inline_copysign (__copysign, double)
-__inline_copysign (copysign, double)
-
-# undef __inline_copysign
-#endif
-
-
-#if !__GNUC_PREREQ (2, 8)
-# define __inline_fabs(NAME, TYPE)			\
-__MATH_INLINE TYPE					\
-__NTH (NAME (TYPE __x))					\
-{							\
-  TYPE __z;						\
-  __asm ("cpys $f31, %1, %0" : "=f" (__z) : "f" (__x));	\
-  return __z;						\
-}
-
-__inline_fabs (__fabsf, float)
-__inline_fabs (fabsf, float)
-__inline_fabs (__fabs, double)
-__inline_fabs (fabs, double)
-
-# undef __inline_fabs
-#endif
-
-#ifdef __USE_ISOC99
-
-/* Test for negative number.  Used in the signbit() macro.  */
-__MATH_INLINE int
-__NTH (__signbitf (float __x))
-{
-#if !__GNUC_PREREQ (4, 0)
-  __extension__ union { float __f; int __i; } __u = { __f: __x };
-  return __u.__i < 0;
-#else
-  return __builtin_signbitf (__x);
-#endif
-}
-
-__MATH_INLINE int
-__NTH (__signbit (double __x))
-{
-#if !__GNUC_PREREQ (4, 0)
-  __extension__ union { double __d; long __i; } __u = { __d: __x };
-  return __u.__i < 0;
-#else
-  return __builtin_signbit (__x);
-#endif
-}
-
-__MATH_INLINE int
-__NTH (__signbitl (long double __x))
-{
-#if !__GNUC_PREREQ (4, 0)
-  __extension__ union {
-    long double __d;
-    long __i[sizeof(long double)/sizeof(long)];
-  } __u = { __d: __x };
-  return __u.__i[sizeof(long double)/sizeof(long) - 1] < 0;
-#else
-  return __builtin_signbitl (__x);
-#endif
-}
-#endif /* C99 */
-
-#endif /* __NO_MATH_INLINES */