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.

10 files changed, 22 insertions, 436 deletions

diff --git a/ChangeLog b/ChangeLog
index 85ae29027b..e4919f2f38 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,27 @@
 2017-09-28  Wilco Dijkstra  <wdijkstr@arm.com>
 
+	* 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.
+
+2017-09-28  Wilco Dijkstra  <wdijkstr@arm.com>
+
 	* math/math.h: Improve handling of C99 isgreater macros.
 	* sysdeps/alpha/fpu/bits/mathinline.h: Remove isgreater macros.
 	* sysdeps/m68k/m680x0/fpu/bits/mathinline.h: Likewise.
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 */
diff --git a/sysdeps/ia64/fpu/bits/mathinline.h b/sysdeps/ia64/fpu/bits/mathinline.h
deleted file mode 100644
index c2107af275..0000000000
--- a/sysdeps/ia64/fpu/bits/mathinline.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Inline math functions for ia64.
-   Copyright (C) 2004-2017 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
-   <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 __USE_ISOC99 && defined __GNUC__ && __GNUC__ >= 2
-/* The gcc, version 2.7 or below, has problems with all this inlining
-   code.  So disable it for this version of the compiler.  */
-# if __GNUC_PREREQ (2, 8)
-/* Test for negative number.  Used in the signbit() macro.  */
-__MATH_INLINE int
-__NTH (__signbitf (float __x))
-{
-  __extension__ union { float __f; int __i; } __u = { __f: __x };
-  return __u.__i < 0;
-}
-__MATH_INLINE int
-__NTH (__signbit (double __x))
-{
-  __extension__ union { double __d; int __i[2]; } __u = { __d: __x };
-  return __u.__i[1] < 0;
-}
-__MATH_INLINE int
-__NTH (__signbitl (long double __x))
-{
-  __extension__ union { long double __l; int __i[3]; } __u = { __l: __x };
-  return (__u.__i[2] & 0x8000) != 0;
-}
-# endif
-#endif
diff --git a/sysdeps/m68k/coldfire/fpu/bits/mathinline.h b/sysdeps/m68k/coldfire/fpu/bits/mathinline.h
deleted file mode 100644
index 7dbfe37ee1..0000000000
--- a/sysdeps/m68k/coldfire/fpu/bits/mathinline.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/* Inline math functions for Coldfire.
-   Copyright (C) 2012-2017 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
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef _MATH_H
-# error "Never use <bits/mathinline.h> directly; include <math.h> instead."
-#endif
-
-#ifndef __extern_always_inline
-# define __MATH_INLINE __inline
-#else
-# define __MATH_INLINE __extern_always_inline
-#endif
-
-#if defined __USE_ISOC99 && defined __GNUC__
-
-/* Test for negative number.  Used in the signbit macro.  */
-__MATH_INLINE int
-__NTH (__signbitf (float __x))
-{
-  return __builtin_signbitf (__x);
-}
-
-__MATH_INLINE int
-__NTH (__signbit (double __x))
-{
-  return __builtin_signbit (__x);
-}
-
-#endif
diff --git a/sysdeps/m68k/m680x0/fpu/bits/mathinline.h b/sysdeps/m68k/m680x0/fpu/bits/mathinline.h
index 07ba1454b9..dcc2a4e829 100644
--- a/sysdeps/m68k/m680x0/fpu/bits/mathinline.h
+++ b/sysdeps/m68k/m680x0/fpu/bits/mathinline.h
@@ -28,30 +28,6 @@
 
 #ifdef	__GNUC__
 
-#ifdef __USE_ISOC99
-
-/* Test for negative number.  Used in the signbit() macro.  */
-__MATH_INLINE int
-__NTH (__signbitf (float __x))
-{
-  __extension__ union { float __f; int __i; } __u = { __f: __x };
-  return __u.__i < 0;
-}
-__MATH_INLINE int
-__NTH (__signbit (double __x))
-{
-  __extension__ union { double __d; int __i[2]; } __u = { __d: __x };
-  return __u.__i[0] < 0;
-}
-__MATH_INLINE int
-__NTH (__signbitl (long double __x))
-{
-  __extension__ union { long double __d; int __i[3]; } __u = { __d: __x };
-  return __u.__i[0] < 0;
-}
-#endif
-
-
 #if (!defined __NO_MATH_INLINES && defined __OPTIMIZE__) \
     || defined __LIBC_INTERNAL_MATH_INLINES
 
diff --git a/sysdeps/powerpc/bits/mathinline.h b/sysdeps/powerpc/bits/mathinline.h
index 406465f3c5..a5f63e452b 100644
--- a/sysdeps/powerpc/bits/mathinline.h
+++ b/sysdeps/powerpc/bits/mathinline.h
@@ -28,41 +28,6 @@
 
 #if defined __GNUC__ && !defined _SOFT_FLOAT && !defined __NO_FPRS__
 
-#ifdef __USE_ISOC99
-/* The gcc, version 2.7 or below, has problems with all this inlining
-   code.  So disable it for this version of the compiler.  */
-# if __GNUC_PREREQ (2, 8)
-/* Test for negative number.  Used in the signbit() macro.  */
-__MATH_INLINE int
-__NTH (__signbitf (float __x))
-{
-#if __GNUC_PREREQ (4, 0)
-  return __builtin_signbitf (__x);
-#else
-  __extension__ union { float __f; int __i; } __u = { __f: __x };
-  return __u.__i < 0;
-#endif
-}
-__MATH_INLINE int
-__NTH (__signbit (double __x))
-{
-#if __GNUC_PREREQ (4, 0)
-  return __builtin_signbit (__x);
-#else
-  __extension__ union { double __d; long long __i; } __u = { __d: __x };
-  return __u.__i < 0;
-#endif
-}
-#  ifdef __LONG_DOUBLE_128__
-__MATH_INLINE int
-__NTH (__signbitl (long double __x))
-{
-  return __signbit ((double) __x);
-}
-#  endif
-# endif
-#endif /* __USE_ISOC99 */
-
 #if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
 
 #ifdef __USE_ISOC99
diff --git a/sysdeps/s390/fpu/bits/mathinline.h b/sysdeps/s390/fpu/bits/mathinline.h
index 52e21db98d..287ac1b514 100644
--- a/sysdeps/s390/fpu/bits/mathinline.h
+++ b/sysdeps/s390/fpu/bits/mathinline.h
@@ -29,40 +29,6 @@
 #if (!defined __NO_MATH_INLINES || defined __LIBC_INTERNAL_MATH_INLINES) \
     && defined __OPTIMIZE__
 
-#ifdef __USE_ISOC99
-
-/* Test for negative number.  Used in the signbit() macro.  */
-__MATH_INLINE int
-__NTH (__signbitf (float __x))
-{
-  __extension__ union { float __f; int __i; } __u = { __f: __x };
-  return __u.__i < 0;
-}
-
-__MATH_INLINE int
-__NTH (__signbit (double __x))
-{
-  __extension__ union { double __d; long __i; } __u = { __d: __x };
-  return __u.__i < 0;
-}
-
-# ifndef __NO_LONG_DOUBLE_MATH
-__MATH_INLINE int
-__NTH (__signbitl (long double __x))
-{
-  __extension__ union { long double __l; int __i[4]; } __u = { __l: __x };
-  return __u.__i[0] < 0;
-}
-# else
-__MATH_INLINE int
-__NTH (__signbitl (long double __x))
-{
-  return __signbit ((double) __x);
-}
-# endif
-
-#endif /* C99 */
-
 /* This code is used internally in the GNU libc.  */
 #ifdef __LIBC_INTERNAL_MATH_INLINES
 
diff --git a/sysdeps/sparc/fpu/bits/mathinline.h b/sysdeps/sparc/fpu/bits/mathinline.h
index 6d6813687d..0c5da628bf 100644
--- a/sysdeps/sparc/fpu/bits/mathinline.h
+++ b/sysdeps/sparc/fpu/bits/mathinline.h
@@ -37,60 +37,6 @@
    code.  So disable it for this version of the compiler.  */
 # if __GNUC_PREREQ (2, 8)
 
-#  ifdef __USE_ISOC99
-
-/* Test for negative number.  Used in the signbit() macro.  */
-__MATH_INLINE int
-__NTH (__signbitf (float __x))
-{
-  __extension__ union { float __f; int __i; } __u = { __f: __x };
-  return __u.__i < 0;
-}
-
-#   if __WORDSIZE == 32
-
-__MATH_INLINE int
-__NTH (__signbit (double __x))
-{
-  __extension__ union { double __d; int __i[2]; } __u = { __d: __x };
-  return __u.__i[0] < 0;
-}
-
-#    ifndef __NO_LONG_DOUBLE_MATH
-__MATH_INLINE int
-__NTH (__signbitl (long double __x))
-{
-  __extension__ union { long double __l; int __i[4]; } __u = { __l: __x };
-  return __u.__i[0] < 0;
-}
-#    else
-__MATH_INLINE int
-__NTH (__signbitl (long double __x))
-{
-  return __signbit ((double)__x);
-}
-#    endif
-
-#   else /* sparc64 */
-
-__MATH_INLINE int
-__NTH (__signbit (double __x))
-{
-  __extension__ union { double __d; long int __i; } __u = { __d: __x };
-  return __u.__i < 0;
-}
-
-__MATH_INLINE int
-__NTH (__signbitl (long double __x))
-{
-  __extension__ union { long double __l; long int __i[2]; } __u = { __l: __x };
-  return __u.__i[0] < 0;
-}
-
-#   endif /* sparc64 */
-
-#  endif /* __USE_ISOC99 */
-
 #  if !defined __NO_MATH_INLINES && !__GNUC_PREREQ (3, 2)
 
 __MATH_INLINE double
diff --git a/sysdeps/tile/bits/mathinline.h b/sysdeps/tile/bits/mathinline.h
deleted file mode 100644
index 5692d91004..0000000000
--- a/sysdeps/tile/bits/mathinline.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/* Copyright (C) 2011-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
-   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_always_inline
-# define __MATH_INLINE __inline
-#else
-# define __MATH_INLINE __extern_always_inline
-#endif
-
-
-#if defined __USE_ISOC99 && defined __GNUC__
-
-/* Test for negative number.  Used in the signbit() macro.  */
-__MATH_INLINE int
-__NTH (__signbitf (float __x))
-{
-  return __builtin_signbitf (__x);
-}
-__MATH_INLINE int
-__NTH (__signbit (double __x))
-{
-  return __builtin_signbit (__x);
-}
-
-#endif
diff --git a/sysdeps/x86/fpu/bits/mathinline.h b/sysdeps/x86/fpu/bits/mathinline.h
index ac31dee820..bae69696d8 100644
--- a/sysdeps/x86/fpu/bits/mathinline.h
+++ b/sysdeps/x86/fpu/bits/mathinline.h
@@ -28,44 +28,6 @@
 
 /* The gcc, version 2.7 or below, has problems with all this inlining
    code.  So disable it for this version of the compiler.  */
-# if __GNUC_PREREQ (2, 8)
-
-/* Test for negative number.  Used in the signbit() macro.  */
-__MATH_INLINE int
-__NTH (__signbitf (float __x))
-{
-#  ifdef __SSE2_MATH__
-  int __m;
-  __asm ("pmovmskb %1, %0" : "=r" (__m) : "x" (__x));
-  return (__m & 0x8) != 0;
-#  else
-  __extension__ union { float __f; int __i; } __u = { __f: __x };
-  return __u.__i < 0;
-#  endif
-}
-__MATH_INLINE int
-__NTH (__signbit (double __x))
-{
-#  ifdef __SSE2_MATH__
-  int __m;
-  __asm ("pmovmskb %1, %0" : "=r" (__m) : "x" (__x));
-  return (__m & 0x80) != 0;
-#  else
-  __extension__ union { double __d; int __i[2]; } __u = { __d: __x };
-  return __u.__i[1] < 0;
-#  endif
-}
-__MATH_INLINE int
-__NTH (__signbitl (long double __x))
-{
-  __extension__ union { long double __l; int __i[3]; } __u = { __l: __x };
-  return (__u.__i[2] & 0x8000) != 0;
-}
-
-# endif
-
-/* The gcc, version 2.7 or below, has problems with all this inlining
-   code.  So disable it for this version of the compiler.  */
 #if __GNUC_PREREQ (2, 8)
 # if !__GNUC_PREREQ (3, 4) && !defined __NO_MATH_INLINES \
      && defined __OPTIMIZE__