Renamed to e_exp2.

9 files changed, 0 insertions, 389 deletions

diff --git a/sysdeps/generic/s_exp2l.c b/sysdeps/generic/s_exp2l.c
deleted file mode 100644
index 64ef6d3d50..0000000000
--- a/sysdeps/generic/s_exp2l.c
+++ /dev/null
@@ -1,14 +0,0 @@
-#include <math.h>
-#include <stdio.h>
-#include <errno.h>
-
-long double
-__ieee754_exp2l (long double x)
-{
-  fputs ("__ieee754_exp2l not implemented\n", stderr);
-  __set_errno (ENOSYS);
-  return 0.0;
-}
-
-stub_warning (exp2l)
-#include <stub-tag.h>
diff --git a/sysdeps/i386/fpu/s_exp2.S b/sysdeps/i386/fpu/s_exp2.S
deleted file mode 100644
index 778c0c0eb6..0000000000
--- a/sysdeps/i386/fpu/s_exp2.S
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Adapted for exp2 by Ulrich Drepper <drepper@cygnus.com>.
- * Public domain.
- */
-
-#include <machine/asm.h>
-
-ENTRY(__ieee754_exp2)
-	fldl	4(%esp)
-/* I added the following ugly construct because exp(+-Inf) resulted
-   in NaN.  The ugliness results from the bright minds at Intel.
-   For the i686 the code can be written better.
-   -- drepper@cygnus.com.  */
-	fxam				/* Is NaN or +-Inf?  */
-	fstsw	%ax
-	movb	$0x45, %dh
-	andb	%ah, %dh
-	cmpb	$0x05, %dh
-	je	1f			/* Is +-Inf, jump.  */
-	fld	%st
-	frndint				/* int(x) */
-	fsubr	%st,%st(1)		/* fract(x) */
-	fxch
-	f2xm1				/* 2^(fract(x)) - 1 */
-	fld1
-	faddp				/* 2^(fract(x)) */
-	fscale				/* e^x */
-	fstp	%st(1)
-	ret
-
-1:	testl	$0x200, %eax		/* Test sign.  */
-	jz	2f			/* If positive, jump.  */
-	fstp	%st
-	fldz				/* Set result to 0.  */
-2:	ret
-END (__ieee754_exp2)
diff --git a/sysdeps/i386/fpu/s_exp2f.S b/sysdeps/i386/fpu/s_exp2f.S
deleted file mode 100644
index c2d1af1af1..0000000000
--- a/sysdeps/i386/fpu/s_exp2f.S
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Adapted for exp2 by Ulrich Drepper <drepper@cygnus.com>.
- * Public domain.
- */
-
-#include <machine/asm.h>
-
-ENTRY(__ieee754_exp2f)
-	flds	4(%esp)
-/* I added the following ugly construct because exp(+-Inf) resulted
-   in NaN.  The ugliness results from the bright minds at Intel.
-   For the i686 the code can be written better.
-   -- drepper@cygnus.com.  */
-	fxam				/* Is NaN or +-Inf?  */
-	fstsw	%ax
-	movb	$0x45, %dh
-	andb	%ah, %dh
-	cmpb	$0x05, %dh
-	je	1f			/* Is +-Inf, jump.  */
-	fld	%st
-	frndint				/* int(x) */
-	fsubr	%st,%st(1)		/* fract(x) */
-	fxch
-	f2xm1				/* 2^(fract(x)) - 1 */
-	fld1
-	faddp				/* 2^(fract(x)) */
-	fscale				/* e^x */
-	fstp	%st(1)
-	ret
-
-1:	testl	$0x200, %eax		/* Test sign.  */
-	jz	2f			/* If positive, jump.  */
-	fstp	%st
-	fldz				/* Set result to 0.  */
-2:	ret
-END (__ieee754_exp2f)
diff --git a/sysdeps/i386/fpu/s_exp2l.S b/sysdeps/i386/fpu/s_exp2l.S
deleted file mode 100644
index fa1fdc9236..0000000000
--- a/sysdeps/i386/fpu/s_exp2l.S
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Adapted for exp2 by Ulrich Drepper <drepper@cygnus.com>.
- * Public domain.
- */
-
-#include <machine/asm.h>
-
-ENTRY(__ieee754_exp2l)
-	fldt	4(%esp)
-/* I added the following ugly construct because exp(+-Inf) resulted
-   in NaN.  The ugliness results from the bright minds at Intel.
-   For the i686 the code can be written better.
-   -- drepper@cygnus.com.  */
-	fxam				/* Is NaN or +-Inf?  */
-	fstsw	%ax
-	movb	$0x45, %dh
-	andb	%ah, %dh
-	cmpb	$0x05, %dh
-	je	1f			/* Is +-Inf, jump.  */
-	fld	%st
-	frndint				/* int(x) */
-	fsubr	%st,%st(1)		/* fract(x) */
-	fxch
-	f2xm1				/* 2^(fract(x)) - 1 */
-	fld1
-	faddp				/* 2^(fract(x)) */
-	fscale				/* e^x */
-	fstp	%st(1)
-	ret
-
-1:	testl	$0x200, %eax		/* Test sign.  */
-	jz	2f			/* If positive, jump.  */
-	fstp	%st
-	fldz				/* Set result to 0.  */
-2:	ret
-END (__ieee754_exp2l)
diff --git a/sysdeps/ieee754/dbl-64/s_exp2.c b/sysdeps/ieee754/dbl-64/s_exp2.c
deleted file mode 100644
index d02af15ecc..0000000000
--- a/sysdeps/ieee754/dbl-64/s_exp2.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/* Double-precision floating point 2^x.
-   Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Geoffrey Keating <geoffk@ozemail.com.au>
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 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
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-/* The basic design here is from
-   Shmuel Gal and Boris Bachelis, "An Accurate Elementary Mathematical
-   Library for the IEEE Floating Point Standard", ACM Trans. Math. Soft.,
-   17 (1), March 1991, pp. 26-45.
-   It has been slightly modified to compute 2^x instead of e^x.
-   */
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-#include <stdlib.h>
-#include <float.h>
-#include <ieee754.h>
-#include <math.h>
-#include <fenv.h>
-#include <inttypes.h>
-#include <math_private.h>
-
-#include "t_exp2.h"
-
-static const volatile double TWO1023 = 8.988465674311579539e+307;
-static const volatile double TWOM1000 = 9.3326361850321887899e-302;
-
-double
-__ieee754_exp2 (double x)
-{
-  static const double himark = (double) DBL_MAX_EXP;
-  static const double lomark = (double) (DBL_MIN_EXP - DBL_MANT_DIG - 1) - 1.0;
-
-  /* Check for usual case.  */
-  if (isless (x, himark) && isgreater (x, lomark))
-    {
-      static const double THREEp42 = 13194139533312.0;
-      int tval, unsafe;
-      double rx, x22, result;
-      union ieee754_double ex2_u, scale_u;
-      fenv_t oldenv;
-
-      feholdexcept (&oldenv);
-#ifdef FE_TONEAREST
-      /* If we don't have this, it's too bad.  */
-      fesetround (FE_TONEAREST);
-#endif
-
-      /* 1. Argument reduction.
-	 Choose integers ex, -256 <= t < 256, and some real
-	 -1/1024 <= x1 <= 1024 so that
-	 x = ex + t/512 + x1.
-
-	 First, calculate rx = ex + t/512.  */
-      rx = x + THREEp42;
-      rx -= THREEp42;
-      x -= rx;  /* Compute x=x1. */
-      /* Compute tval = (ex*512 + t)+256.
-	 Now, t = (tval mod 512)-256 and ex=tval/512  [that's mod, NOT %; and
-	 /-round-to-nearest not the usual c integer /].  */
-      tval = (int) (rx * 512.0 + 256.0);
-
-      /* 2. Adjust for accurate table entry.
-	 Find e so that
-	 x = ex + t/512 + e + x2
-	 where -1e6 < e < 1e6, and
-	 (double)(2^(t/512+e))
-	 is accurate to one part in 2^-64.  */
-
-      /* 'tval & 511' is the same as 'tval%512' except that it's always
-	 positive.
-	 Compute x = x2.  */
-      x -= exp2_deltatable[tval & 511];
-
-      /* 3. Compute ex2 = 2^(t/512+e+ex).  */
-      ex2_u.d = exp2_accuratetable[tval & 511];
-      tval >>= 9;
-      unsafe = abs(tval) >= -DBL_MIN_EXP - 1;
-      ex2_u.ieee.exponent += tval >> unsafe;
-      scale_u.d = 1.0;
-      scale_u.ieee.exponent += tval - (tval >> unsafe);
-
-      /* 4. Approximate 2^x2 - 1, using a fourth-degree polynomial,
-	 with maximum error in [-2^-10-2^-30,2^-10+2^-30]
-	 less than 10^-19.  */
-
-      x22 = (((.0096181293647031180
-	       * x + .055504110254308625)
-	      * x + .240226506959100583)
-	     * x + .69314718055994495) * ex2_u.d;
-
-      /* 5. Return (2^x2-1) * 2^(t/512+e+ex) + 2^(t/512+e+ex).  */
-      fesetenv (&oldenv);
-
-      result = x22 * x + ex2_u.d;
-
-      if (!unsafe)
-	return result;
-      else
-	return result * scale_u.d;
-    }
-  /* Exceptional cases:  */
-  else if (isless (x, himark))
-    {
-      if (__isinf (x))
-	/* e^-inf == 0, with no error.  */
-	return 0;
-      else
-	/* Underflow */
-	return TWOM1000 * TWOM1000;
-    }
-  else
-    /* Return x, if x is a NaN or Inf; or overflow, otherwise.  */
-    return TWO1023*x;
-}
diff --git a/sysdeps/ieee754/flt-32/s_exp2f.c b/sysdeps/ieee754/flt-32/s_exp2f.c
deleted file mode 100644
index 4d529ea285..0000000000
--- a/sysdeps/ieee754/flt-32/s_exp2f.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/* Single-precision floating point 2^x.
-   Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Geoffrey Keating <geoffk@ozemail.com.au>
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 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
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-/* The basic design here is from
-   Shmuel Gal and Boris Bachelis, "An Accurate Elementary Mathematical
-   Library for the IEEE Floating Point Standard", ACM Trans. Math. Soft.,
-   17 (1), March 1991, pp. 26-45.
-   It has been slightly modified to compute 2^x instead of e^x, and for
-   single-precision.
-   */
-#ifndef _GNU_SOURCE
-# define _GNU_SOURCE
-#endif
-#include <stdlib.h>
-#include <float.h>
-#include <ieee754.h>
-#include <math.h>
-#include <fenv.h>
-#include <inttypes.h>
-#include <math_private.h>
-
-#include "t_exp2f.h"
-
-static const volatile float TWOM100 = 7.88860905e-31;
-static const volatile float TWO127 = 1.7014118346e+38;
-
-float
-__ieee754_exp2f (float x)
-{
-  static const float himark = (float) FLT_MAX_EXP;
-  static const float lomark = (float) (FLT_MIN_EXP - FLT_MANT_DIG - 1) - 1.0;
-
-  /* Check for usual case.  */
-  if (isless (x, himark) && isgreater (x, lomark))
-    {
-      static const float THREEp14 = 49152.0;
-      int tval, unsafe;
-      float rx, x22, result;
-      union ieee754_float ex2_u, scale_u;
-      fenv_t oldenv;
-
-      feholdexcept (&oldenv);
-#ifdef FE_TONEAREST
-      /* If we don't have this, it's too bad.  */
-      fesetround (FE_TONEAREST);
-#endif
-
-      /* 1. Argument reduction.
-	 Choose integers ex, -128 <= t < 128, and some real
-	 -1/512 <= x1 <= 1/512 so that
-	 x = ex + t/512 + x1.
-
-	 First, calculate rx = ex + t/256.  */
-      rx = x + THREEp14;
-      rx -= THREEp14;
-      x -= rx;  /* Compute x=x1. */
-      /* Compute tval = (ex*256 + t)+128.
-	 Now, t = (tval mod 256)-128 and ex=tval/256  [that's mod, NOT %; and
-	 /-round-to-nearest not the usual c integer /].  */
-      tval = (int) (rx * 256.0f + 128.0f);
-
-      /* 2. Adjust for accurate table entry.
-	 Find e so that
-	 x = ex + t/256 + e + x2
-	 where -7e-4 < e < 7e-4, and
-	 (float)(2^(t/256+e))
-	 is accurate to one part in 2^-64.  */
-
-      /* 'tval & 255' is the same as 'tval%256' except that it's always
-	 positive.
-	 Compute x = x2.  */
-      x -= __exp2f_deltatable[tval & 255];
-
-      /* 3. Compute ex2 = 2^(t/255+e+ex).  */
-      ex2_u.f = __exp2f_atable[tval & 255];
-      tval >>= 8;
-      unsafe = abs(tval) >= -FLT_MIN_EXP - 1;
-      ex2_u.ieee.exponent += tval >> unsafe;
-      scale_u.f = 1.0;
-      scale_u.ieee.exponent += tval - (tval >> unsafe);
-
-      /* 4. Approximate 2^x2 - 1, using a second-degree polynomial,
-	 with maximum error in [-2^-9 - 2^-14, 2^-9 + 2^-14]
-	 less than 1.3e-10.  */
-
-      x22 = (.24022656679f * x + .69314736128f) * ex2_u.f;
-
-      /* 5. Return (2^x2-1) * 2^(t/512+e+ex) + 2^(t/512+e+ex).  */
-      fesetenv (&oldenv);
-
-      result = x22 * x + ex2_u.f;
-
-      if (!unsafe)
-	return result;
-      else
-	return result * scale_u.f;
-    }
-  /* Exceptional cases:  */
-  else if (isless (x, himark))
-    {
-      if (__isinff (x))
-	/* e^-inf == 0, with no error.  */
-	return 0;
-      else
-	/* Underflow */
-	return TWOM100 * TWOM100;
-    }
-  else
-    /* Return x, if x is a NaN or Inf; or overflow, otherwise.  */
-    return TWO127*x;
-}
diff --git a/sysdeps/m68k/fpu/s_exp2.c b/sysdeps/m68k/fpu/s_exp2.c
deleted file mode 100644
index 24fac4fce6..0000000000
--- a/sysdeps/m68k/fpu/s_exp2.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define FUNC __ieee754_exp2
-#include <e_acos.c>
diff --git a/sysdeps/m68k/fpu/s_exp2f.c b/sysdeps/m68k/fpu/s_exp2f.c
deleted file mode 100644
index 593842e4e5..0000000000
--- a/sysdeps/m68k/fpu/s_exp2f.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define FUNC __ieee754_exp2f
-#include <e_acosf.c>
diff --git a/sysdeps/m68k/fpu/s_exp2l.c b/sysdeps/m68k/fpu/s_exp2l.c
deleted file mode 100644
index 0ab2a428c0..0000000000
--- a/sysdeps/m68k/fpu/s_exp2l.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define FUNC __ieee754_exp2l
-#include <e_acosl.c>