diff --git a/manual/probes.texi b/manual/probes.texi
index 8ab6756..f8ae64b 100644
--- a/manual/probes.texi
+++ b/manual/probes.texi
@@ -258,20 +258,6 @@ Unless explicitly mentioned otherwise, a precision of 1 implies 24 bits of
 precision in the mantissa of the multiple precision number.  Hence, a precision
 level of 32 implies 768 bits of precision in the mantissa.
 
-@deftp Probe slowexp_p6 (double @var{$arg1}, double @var{$arg2})
-This probe is triggered when the @code{exp} function is called with an
-input that results in multiple precision computation with precision
-6.  Argument @var{$arg1} is the input value and @var{$arg2} is the
-computed output.
-@end deftp
-
-@deftp Probe slowexp_p32 (double @var{$arg1}, double @var{$arg2})
-This probe is triggered when the @code{exp} function is called with an
-input that results in multiple precision computation with precision
-32.  Argument @var{$arg1} is the input value and @var{$arg2} is the
-computed output.
-@end deftp
-
 @deftp Probe slowpow_p10 (double @var{$arg1}, double @var{$arg2}, double @var{$arg3}, double @var{$arg4})
 This probe is triggered when the @code{pow} function is called with
 inputs that result in multiple precision computation with precision
diff --git a/math/Makefile b/math/Makefile
index b2bd3d3..f70aebf 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -114,7 +114,7 @@ type-ldouble-yes := ldouble
 # double support
 type-double-suffix :=
 type-double-routines := branred doasin dosincos halfulp mpa mpatan2	\
-		       mpatan mpexp mplog mpsqrt mptan sincos32 slowexp	\
+		       mpatan mpexp mplog mpsqrt mptan sincos32 \
 		       slowpow sincostab k_rem_pio2
 
 # float support
@@ -561,8 +561,10 @@ math-CPPFLAGS += -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES
 ifneq ($(long-double-fcts),yes)
 # The `double' and `long double' types are the same on this machine.
 # We won't compile the `long double' code at all.  Tell the `double' code
-# to define aliases for the `FUNCl' names.
-math-CPPFLAGS += -DNO_LONG_DOUBLE
+# to define aliases for the `FUNCl' names.  To avoid type conflicts in
+# defining those aliases, tell <math.h> to declare the `FUNCl' names with
+# `double' instead of `long double'.
+math-CPPFLAGS += -DNO_LONG_DOUBLE -D_Mlong_double_=double
 endif
 
 # These files quiet sNaNs in a way that is optimized away without
diff --git a/sysdeps/generic/math_private.h b/sysdeps/generic/math_private.h
index 80c7c92..30fc3c9 100644
--- a/sysdeps/generic/math_private.h
+++ b/sysdeps/generic/math_private.h
@@ -262,7 +262,6 @@ extern double __sin32 (double __x, double __res, double __res1);
 extern double __cos32 (double __x, double __res, double __res1);
 extern double __mpsin (double __x, double __dx, bool __range_reduce);
 extern double __mpcos (double __x, double __dx, bool __range_reduce);
-extern double __slowexp (double __x);
 extern double __slowpow (double __x, double __y, double __z);
 extern void __docos (double __x, double __dx, double __v[]);
 
diff --git a/sysdeps/ieee754/dbl-64/e_exp.c b/sysdeps/ieee754/dbl-64/e_exp.c
index 6757a14..87e86a6 100644
--- a/sysdeps/ieee754/dbl-64/e_exp.c
+++ b/sysdeps/ieee754/dbl-64/e_exp.c
@@ -1,3 +1,4 @@
+/* EXP function - Compute double precision exponential */
 /*
  * IBM Accurate Mathematical Library
  * written by International Business Machines Corp.
@@ -23,7 +24,7 @@
 /*           exp1                                                          */
 /*                                                                         */
 /* FILES NEEDED:dla.h endian.h mpa.h mydefs.h uexp.h                       */
-/*              mpa.c mpexp.x slowexp.c                                    */
+/*              mpa.c mpexp.x                                              */
 /*                                                                         */
 /* An ultimate exp routine. Given an IEEE double machine number x          */
 /* it computes the correctly rounded (to nearest) value of e^x             */
@@ -32,207 +33,239 @@
 /*                                                                         */
 /***************************************************************************/
 
+/*  IBM exp(x) replaced by following exp(x) in 2017. IBM exp1(x,xx) remains.  */
+/* exp(x)
+   Hybrid algorithm of Peter Tang's Table driven method (for large
+   arguments) and an accurate table (for small arguments).
+   Written by K.C. Ng, November 1988.
+   Method (large arguments):
+	1. Argument Reduction: given the input x, find r and integer k
+	   and j such that
+	             x = (k+j/32)*(ln2) + r,  |r| <= (1/64)*ln2
+
+	2. exp(x) = 2^k * (2^(j/32) + 2^(j/32)*expm1(r))
+	   a. expm1(r) is approximated by a polynomial:
+	      expm1(r) ~ r + t1*r^2 + t2*r^3 + ... + t5*r^6
+	      Here t1 = 1/2 exactly.
+	   b. 2^(j/32) is represented to twice double precision
+	      as TBL[2j]+TBL[2j+1].
+
+   Note: If divide were fast enough, we could use another approximation
+	 in 2.a:
+	      expm1(r) ~ (2r)/(2-R), R = r - r^2*(t1 + t2*r^2)
+	      (for the same t1 and t2 as above)
+
+   Special cases:
+	exp(INF) is INF, exp(NaN) is NaN;
+	exp(-INF)=  0;
+	for finite argument, only exp(0)=1 is exact.
+
+   Accuracy:
+	According to an error analysis, the error is always less than
+	an ulp (unit in the last place).  The largest errors observed
+	are less than 0.55 ulp for normal results and less than 0.75 ulp
+	for subnormal results.
+
+   Misc. info.
+	For IEEE double
+		if x >  7.09782712893383973096e+02 then exp(x) overflow
+		if x < -7.45133219101941108420e+02 then exp(x) underflow.  */
+
 #include <math.h>
+#include <math-svid-compat.h>
+#include <math_private.h>
+#include <errno.h>
 #include "endian.h"
 #include "uexp.h"
+#include "uexp.tbl"
 #include "mydefs.h"
 #include "MathLib.h"
-#include "uexp.tbl"
-#include <math_private.h>
 #include <fenv.h>
 #include <float.h>
 
-#ifndef SECTION
-# define SECTION
-#endif
+extern double __ieee754_exp (double);
+
+#include "eexp.tbl"
+
+static const double
+  half = 0.5,
+  one = 1.0;
 
-double __slowexp (double);
 
-/* An ultimate exp routine. Given an IEEE double machine number x it computes
-   the correctly rounded (to nearest) value of e^x.  */
 double
-SECTION
-__ieee754_exp (double x)
+__ieee754_exp (double x_arg)
 {
-  double bexp, t, eps, del, base, y, al, bet, res, rem, cor;
-  mynumber junk1, junk2, binexp = {{0, 0}};
-  int4 i, j, m, n, ex;
+  double z, t;
   double retval;
-
+  int hx, ix, k, j, m;
+  int fe_val;
+  union
   {
-    SET_RESTORE_ROUND (FE_TONEAREST);
-
-    junk1.x = x;
-    m = junk1.i[HIGH_HALF];
-    n = m & hugeint;
-
-    if (n > smallint && n < bigint)
-      {
-	y = x * log2e.x + three51.x;
-	bexp = y - three51.x;	/*  multiply the result by 2**bexp        */
-
-	junk1.x = y;
-
-	eps = bexp * ln_two2.x;	/* x = bexp*ln(2) + t - eps               */
-	t = x - bexp * ln_two1.x;
-
-	y = t + three33.x;
-	base = y - three33.x;	/* t rounded to a multiple of 2**-18      */
-	junk2.x = y;
-	del = (t - base) - eps;	/*  x = bexp*ln(2) + base + del           */
-	eps = del + del * del * (p3.x * del + p2.x);
-
-	binexp.i[HIGH_HALF] = (junk1.i[LOW_HALF] + 1023) << 20;
-
-	i = ((junk2.i[LOW_HALF] >> 8) & 0xfffffffe) + 356;
-	j = (junk2.i[LOW_HALF] & 511) << 1;
-
-	al = coar.x[i] * fine.x[j];
-	bet = ((coar.x[i] * fine.x[j + 1] + coar.x[i + 1] * fine.x[j])
-	       + coar.x[i + 1] * fine.x[j + 1]);
-
-	rem = (bet + bet * eps) + al * eps;
-	res = al + rem;
-	cor = (al - res) + rem;
-	if (res == (res + cor * err_0))
-	  {
-	    retval = res * binexp.x;
-	    goto ret;
-	  }
-	else
-	  {
-	    retval = __slowexp (x);
-	    goto ret;
-	  }			/*if error is over bound */
-      }
-
-    if (n <= smallint)
-      {
-	retval = 1.0;
-	goto ret;
-      }
-
-    if (n >= badint)
-      {
-	if (n > infint)
-	  {
-	    retval = x + x;
-	    goto ret;
-	  }			/* x is NaN */
-	if (n < infint)
-	  {
-	    if (x > 0)
-	      goto ret_huge;
-	    else
-	      goto ret_tiny;
-	  }
-	/* x is finite,  cause either overflow or underflow  */
-	if (junk1.i[LOW_HALF] != 0)
-	  {
-	    retval = x + x;
-	    goto ret;
-	  }			/*  x is NaN  */
-	retval = (x > 0) ? inf.x : zero;	/* |x| = inf;  return either inf or 0 */
-	goto ret;
-      }
-
-    y = x * log2e.x + three51.x;
-    bexp = y - three51.x;
-    junk1.x = y;
-    eps = bexp * ln_two2.x;
-    t = x - bexp * ln_two1.x;
-    y = t + three33.x;
-    base = y - three33.x;
-    junk2.x = y;
-    del = (t - base) - eps;
-    eps = del + del * del * (p3.x * del + p2.x);
-    i = ((junk2.i[LOW_HALF] >> 8) & 0xfffffffe) + 356;
-    j = (junk2.i[LOW_HALF] & 511) << 1;
-    al = coar.x[i] * fine.x[j];
-    bet = ((coar.x[i] * fine.x[j + 1] + coar.x[i + 1] * fine.x[j])
-	   + coar.x[i + 1] * fine.x[j + 1]);
-    rem = (bet + bet * eps) + al * eps;
-    res = al + rem;
-    cor = (al - res) + rem;
-    if (m >> 31)
-      {
-	ex = junk1.i[LOW_HALF];
-	if (res < 1.0)
-	  {
-	    res += res;
-	    cor += cor;
-	    ex -= 1;
-	  }
-	if (ex >= -1022)
-	  {
-	    binexp.i[HIGH_HALF] = (1023 + ex) << 20;
-	    if (res == (res + cor * err_0))
-	      {
-		retval = res * binexp.x;
-		goto ret;
-	      }
-	    else
-	      {
-		retval = __slowexp (x);
-		goto check_uflow_ret;
-	      }			/*if error is over bound */
-	  }
-	ex = -(1022 + ex);
-	binexp.i[HIGH_HALF] = (1023 - ex) << 20;
-	res *= binexp.x;
-	cor *= binexp.x;
-	eps = 1.0000000001 + err_0 * binexp.x;
-	t = 1.0 + res;
-	y = ((1.0 - t) + res) + cor;
-	res = t + y;
-	cor = (t - res) + y;
-	if (res == (res + eps * cor))
-	  {
-	    binexp.i[HIGH_HALF] = 0x00100000;
-	    retval = (res - 1.0) * binexp.x;
-	    goto check_uflow_ret;
-	  }
-	else
-	  {
-	    retval = __slowexp (x);
-	    goto check_uflow_ret;
-	  }			/*   if error is over bound    */
-      check_uflow_ret:
-	if (retval < DBL_MIN)
-	  {
-	    double force_underflow = tiny * tiny;
-	    math_force_eval (force_underflow);
-	  }
-	if (retval == 0)
-	  goto ret_tiny;
-	goto ret;
-      }
-    else
-      {
-	binexp.i[HIGH_HALF] = (junk1.i[LOW_HALF] + 767) << 20;
-	if (res == (res + cor * err_0))
-	  retval = res * binexp.x * t256.x;
-	else
-	  retval = __slowexp (x);
-	if (isinf (retval))
-	  goto ret_huge;
-	else
-	  goto ret;
-      }
-  }
-ret:
-  return retval;
-
- ret_huge:
-  return hhuge * hhuge;
-
- ret_tiny:
-  return tiny * tiny;
+    int i_part[2];
+    double x;
+  } xx;
+  union
+  {
+    int y_part[2];
+    double y;
+  } yy;
+  xx.x = x_arg;
+
+  ix = xx.i_part[HIGH_HALF];
+  hx = ix & ~0x80000000;
+
+  if (hx < 0x3ff0a2b2)
+    {				/* |x| < 3/2 ln 2 */
+      if (hx < 0x3f862e42)
+	{			/* |x| < 1/64 ln 2 */
+	  if (hx < 0x3ed00000)
+	    {			/* |x| < 2^-18 */
+	      if (hx < 0x3e300000)
+		{
+		  retval = one + xx.x;
+		  return (retval);
+		}
+	      retval = one + xx.x * (one + half * xx.x);
+	      return (retval);
+	    }
+	  /* Use FE_TONEAREST rounding mode for computing yy.y.
+	     Avoid set/reset of rounding mode if in FE_TONEAREST mode.  */
+	  fe_val = get_rounding_mode ();
+	  if (fe_val == FE_TONEAREST)
+	    {
+	      t = xx.x * xx.x;
+	      yy.y = xx.x + (t * (half + xx.x * t2) +
+			     (t * t) * (t3 + xx.x * t4 + t * t5));
+	      retval = one + yy.y;
+	    } 
+	  else
+	    {
+	      libc_fesetround (FE_TONEAREST);
+	      t = xx.x * xx.x;
+	      yy.y = xx.x + (t * (half + xx.x * t2) +
+			     (t * t) * (t3 + xx.x * t4 + t * t5));
+	      retval = one + yy.y;
+	      libc_fesetround (fe_val);
+	    }
+	  return (retval);
+	}
+
+      /* Find the multiple of 2^-6 nearest x.  */
+      k = hx >> 20;
+      j = (0x00100000 | (hx & 0x000fffff)) >> (0x40c - k);
+      j = (j - 1) & ~1;
+      if (ix < 0)
+	j += 134;
+      /* Use FE_TONEAREST rounding mode for computing yy.y.
+	 Avoid set/reset of rounding mode if in FE_TONEAREST mode.  */
+      fe_val = get_rounding_mode ();
+      if (fe_val == FE_TONEAREST)
+	{
+	  z = xx.x - TBL2[j];
+	  t = z * z;
+	  yy.y = z + (t * (half + (z * t2)) +
+		      (t * t) * (t3 + z * t4 + t * t5));
+	  retval = TBL2[j + 1] + TBL2[j + 1] * yy.y;
+	}
+      else
+	{
+	  libc_fesetround (FE_TONEAREST);
+	  z = xx.x - TBL2[j];
+	  t = z * z;
+	  yy.y = z + (t * (half + (z * t2)) +
+		      (t * t) * (t3 + z * t4 + t * t5));
+	  retval = TBL2[j + 1] + TBL2[j + 1] * yy.y;
+	  libc_fesetround (fe_val);
+	}
+      return (retval);
+    }
+
+  if (hx >= 0x40862e42)
+    {				/* x is large, infinite, or nan.  */
+      if (hx >= 0x7ff00000)
+	{
+	  if (ix == 0xfff00000 && xx.i_part[LOW_HALF] == 0)
+	    return (zero);	/* exp(-inf) = 0.  */
+	  return (xx.x * xx.x);	/* exp(nan/inf) is nan or inf.  */
+	}
+      if (xx.x > threshold1)
+	{			/* Set overflow error condition.  */
+	  retval = hhuge * hhuge;
+	  return retval;
+	} 
+      if (-xx.x > threshold2)
+	{			/* Set underflow error condition.  */
+	  double force_underflow = tiny * tiny;
+	  math_force_eval (force_underflow);
+	  retval = force_underflow;
+	  return retval;
+	}
+    }
+
+  /* Use FE_TONEAREST rounding mode for computing yy.y.
+     Avoid set/reset of rounding mode if already in FE_TONEAREST mode.  */
+  fe_val = get_rounding_mode ();
+  if (fe_val == FE_TONEAREST)
+    {
+      t = invln2_32 * xx.x;
+      if (ix < 0)
+	t -= half;
+      else
+	t += half;
+      k = (int) t;
+      j = (k & 0x1f) << 1;
+      m = k >> 5;
+      z = (xx.x - k * ln2_32hi) - k * ln2_32lo;
+
+      /* z is now in primary range.  */
+      t = z * z;
+      yy.y = z + (t * (half + z * t2) + 
+		  (t * t) * (t3 + z * t4 + t * t5));
+      yy.y = TBL[j] + (TBL[j + 1] + TBL[j] * yy.y);
+    }
+  else
+    {
+      libc_fesetround (FE_TONEAREST);
+      t = invln2_32 * xx.x;
+      if (ix < 0)
+	t -= half;
+      else
+	t += half;
+      k = (int) t;
+      j = (k & 0x1f) << 1;
+      m = k >> 5;
+      z = (xx.x - k * ln2_32hi) - k * ln2_32lo;
+
+      /* z is now in primary range.  */
+      t = z * z;
+      yy.y = z + (t * (half + z * t2) +
+		  (t * t) * (t3 + z * t4 + t * t5));
+      yy.y = TBL[j] + (TBL[j + 1] + TBL[j] * yy.y);
+      libc_fesetround (fe_val);
+    }
+
+  if (m < -1021)
+    {
+      yy.y_part[HIGH_HALF] += (m + 54) << 20;
+      retval = twom54 * yy.y;
+      if (retval < DBL_MIN)
+	{
+	  double force_underflow = tiny * tiny;
+	  math_force_eval (force_underflow);
+	}
+      return retval;
+    }
+  yy.y_part[HIGH_HALF] += m << 20;
+  return (yy.y);
 }
 #ifndef __ieee754_exp
 strong_alias (__ieee754_exp, __exp_finite)
 #endif
 
+#ifndef SECTION
+# define SECTION
+#endif
+
 /* Compute e^(x+xx).  The routine also receives bound of error of previous
    calculation.  If after computing exp the error exceeds the allowed bounds,
    the routine returns a non-positive number.  Otherwise it returns the
diff --git a/sysdeps/ieee754/dbl-64/e_pow.c b/sysdeps/ieee754/dbl-64/e_pow.c
index 9f6439e..2eb8dbf 100644
--- a/sysdeps/ieee754/dbl-64/e_pow.c
+++ b/sysdeps/ieee754/dbl-64/e_pow.c
@@ -25,7 +25,7 @@
 /*             log1                                                        */
 /*             checkint                                                    */
 /* FILES NEEDED: dla.h endian.h mpa.h mydefs.h                             */
-/*               halfulp.c mpexp.c mplog.c slowexp.c slowpow.c mpa.c       */
+/*               halfulp.c mpexp.c mplog.c slowpow.c mpa.c                 */
 /*                          uexp.c  upow.c				   */
 /*               root.tbl uexp.tbl upow.tbl                                */
 /* An ultimate power routine. Given two IEEE double machine numbers y,x    */
diff --git a/sysdeps/ieee754/dbl-64/eexp.tbl b/sysdeps/ieee754/dbl-64/eexp.tbl
new file mode 100644
index 0000000..776369f
--- /dev/null
+++ b/sysdeps/ieee754/dbl-64/eexp.tbl
@@ -0,0 +1,219 @@
+/* EXP function tables - for use in ocmputing double precisoin exponential
+   Copyright (C) 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/>.  */
+
+
+/* TBL[2*j] and TBL[2*j+1] are double precision numbers used to
+   approximate exp(x) using the formula given in the comments
+   for e_exp.c.  */
+
+static const double TBL[64] = {
+    0x1.0000000000000p+0,  0x0.0000000000000p+0,
+    0x1.059b0d3158574p+0,  0x1.d73e2a475b465p-55,
+    0x1.0b5586cf9890fp+0,  0x1.8a62e4adc610ap-54,
+    0x1.11301d0125b51p+0, -0x1.6c51039449b3ap-54,
+    0x1.172b83c7d517bp+0, -0x1.19041b9d78a76p-55,
+    0x1.1d4873168b9aap+0,  0x1.e016e00a2643cp-54,
+    0x1.2387a6e756238p+0,  0x1.9b07eb6c70573p-54,
+    0x1.29e9df51fdee1p+0,  0x1.612e8afad1255p-55,
+    0x1.306fe0a31b715p+0,  0x1.6f46ad23182e4p-55,
+    0x1.371a7373aa9cbp+0, -0x1.63aeabf42eae2p-54,
+    0x1.3dea64c123422p+0,  0x1.ada0911f09ebcp-55,
+    0x1.44e086061892dp+0,  0x1.89b7a04ef80d0p-59,
+    0x1.4bfdad5362a27p+0,  0x1.d4397afec42e2p-56,
+    0x1.5342b569d4f82p+0, -0x1.07abe1db13cacp-55,
+    0x1.5ab07dd485429p+0,  0x1.6324c054647adp-54,
+    0x1.6247eb03a5585p+0, -0x1.383c17e40b497p-54,
+    0x1.6a09e667f3bcdp+0, -0x1.bdd3413b26456p-54,
+    0x1.71f75e8ec5f74p+0, -0x1.16e4786887a99p-55,
+    0x1.7a11473eb0187p+0, -0x1.41577ee04992fp-55,
+    0x1.82589994cce13p+0, -0x1.d4c1dd41532d8p-54,
+    0x1.8ace5422aa0dbp+0,  0x1.6e9f156864b27p-54,
+    0x1.93737b0cdc5e5p+0, -0x1.75fc781b57ebcp-57,
+    0x1.9c49182a3f090p+0,  0x1.c7c46b071f2bep-56,
+    0x1.a5503b23e255dp+0, -0x1.d2f6edb8d41e1p-54,
+    0x1.ae89f995ad3adp+0,  0x1.7a1cd345dcc81p-54,
+    0x1.b7f76f2fb5e47p+0, -0x1.5584f7e54ac3bp-56,
+    0x1.c199bdd85529cp+0,  0x1.11065895048ddp-55,
+    0x1.cb720dcef9069p+0,  0x1.503cbd1e949dbp-56,
+    0x1.d5818dcfba487p+0,  0x1.2ed02d75b3706p-55,
+    0x1.dfc97337b9b5fp+0, -0x1.1a5cd4f184b5cp-54,
+    0x1.ea4afa2a490dap+0, -0x1.e9c23179c2893p-54,
+    0x1.f50765b6e4540p+0,  0x1.9d3e12dd8a18bp-54};
+
+/* For i = 0, ..., 66,
+     TBL2[2*i] is a double precision number near (i+1)*2^-6, and
+     TBL2[2*i+1] = exp(TBL2[2*i]) to within a relative error less
+     than 2^-60.
+
+   For i = 67, ..., 133,
+     TBL2[2*i] is a double precision number near -(i+1)*2^-6, and
+     TBL2[2*i+1] = exp(TBL2[2*i]) to within a relative error less
+     than 2^-60.  */
+
+static const double TBL2[268] = {
+    0x1.ffffffffffc82p-7,   0x1.04080ab55de32p+0,
+    0x1.fffffffffffdbp-6,   0x1.08205601127ecp+0,
+    0x1.80000000000a0p-5,   0x1.0c49236829e91p+0,
+    0x1.fffffffffff79p-5,   0x1.1082b577d34e9p+0,
+    0x1.3fffffffffffcp-4,   0x1.14cd4fc989cd6p+0,
+    0x1.8000000000060p-4,   0x1.192937074e0d4p+0,
+    0x1.c000000000061p-4,   0x1.1d96b0eff0e80p+0,
+    0x1.fffffffffffd6p-4,   0x1.2216045b6f5cap+0,
+    0x1.1ffffffffff58p-3,   0x1.26a7793f6014cp+0,
+    0x1.3ffffffffff75p-3,   0x1.2b4b58b372c65p+0,
+    0x1.5ffffffffff00p-3,   0x1.3001ecf601ad1p+0,
+    0x1.8000000000020p-3,   0x1.34cb8170b583ap+0,
+    0x1.9ffffffffa629p-3,   0x1.39a862bd3b344p+0,
+    0x1.c00000000000fp-3,   0x1.3e98deaa11dcep+0,
+    0x1.e00000000007fp-3,   0x1.439d443f5f16dp+0,
+    0x1.0000000000072p-2,   0x1.48b5e3c3e81abp+0,
+    0x1.0fffffffffecap-2,   0x1.4de30ec211dfbp+0,
+    0x1.1ffffffffff8fp-2,   0x1.5325180cfacd2p+0,
+    0x1.300000000003bp-2,   0x1.587c53c5a7b04p+0,
+    0x1.4000000000034p-2,   0x1.5de9176046007p+0,
+    0x1.4ffffffffff89p-2,   0x1.636bb9a98322fp+0,
+    0x1.5ffffffffffe7p-2,   0x1.690492cbf942ap+0,
+    0x1.6ffffffffff78p-2,   0x1.6eb3fc55b1e45p+0,
+    0x1.7ffffffffff65p-2,   0x1.747a513dbef32p+0,
+    0x1.8ffffffffffd5p-2,   0x1.7a57ede9ea22ep+0,
+    0x1.9ffffffffff6ep-2,   0x1.804d30347b50fp+0,
+    0x1.affffffffffc3p-2,   0x1.865a7772164aep+0,
+    0x1.c000000000053p-2,   0x1.8c802477b0030p+0,
+    0x1.d00000000004dp-2,   0x1.92be99a09bf1ep+0,
+    0x1.e000000000096p-2,   0x1.99163ad4b1e08p+0,
+    0x1.efffffffffefap-2,   0x1.9f876d8e8c4fcp+0,
+    0x1.fffffffffffd0p-2,   0x1.a61298e1e0688p+0,
+    0x1.0800000000002p-1,   0x1.acb82581eee56p+0,
+    0x1.100000000001fp-1,   0x1.b3787dc80f979p+0,
+    0x1.17ffffffffff8p-1,   0x1.ba540dba56e4fp+0,
+    0x1.1fffffffffffap-1,   0x1.c14b431256441p+0,
+    0x1.27fffffffffc4p-1,   0x1.c85e8d43f7c9bp+0,
+    0x1.2fffffffffffdp-1,   0x1.cf8e5d84758a6p+0,
+    0x1.380000000001fp-1,   0x1.d6db26d16cd84p+0,
+    0x1.3ffffffffffd8p-1,   0x1.de455df80e39bp+0,
+    0x1.4800000000052p-1,   0x1.e5cd799c6a59cp+0,
+    0x1.4ffffffffffc8p-1,   0x1.ed73f240dc10cp+0,
+    0x1.5800000000013p-1,   0x1.f539424d90f71p+0,
+    0x1.5ffffffffffbcp-1,   0x1.fd1de6182f885p+0,
+    0x1.680000000002dp-1,   0x1.02912df5ce741p+1,
+    0x1.7000000000040p-1,   0x1.06a39207f0a2ap+1,
+    0x1.780000000004fp-1,   0x1.0ac660691652ap+1,
+    0x1.7ffffffffff6fp-1,   0x1.0ef9db467dcabp+1,
+    0x1.87fffffffffe5p-1,   0x1.133e45d82e943p+1,
+    0x1.9000000000035p-1,   0x1.1793e4652cc6dp+1,
+    0x1.97fffffffffb3p-1,   0x1.1bfafc47bda48p+1,
+    0x1.a000000000000p-1,   0x1.2073d3f1bd518p+1,
+    0x1.a80000000004ap-1,   0x1.24feb2f105ce2p+1,
+    0x1.affffffffffedp-1,   0x1.299be1f3e7f11p+1,
+    0x1.b7ffffffffffbp-1,   0x1.2e4baacdb6611p+1,
+    0x1.c00000000001dp-1,   0x1.330e587b62b39p+1,
+    0x1.c800000000079p-1,   0x1.37e437282d538p+1,
+    0x1.cffffffffff51p-1,   0x1.3ccd943268248p+1,
+    0x1.d7fffffffff74p-1,   0x1.41cabe304cadcp+1,
+    0x1.e000000000011p-1,   0x1.46dc04f4e5343p+1,
+    0x1.e80000000001ep-1,   0x1.4c01b9950a124p+1,
+    0x1.effffffffff9ep-1,   0x1.513c2e6c73196p+1,
+    0x1.f7fffffffffedp-1,   0x1.568bb722dd586p+1,
+    0x1.0000000000034p+0,   0x1.5bf0a8b1457b0p+1,
+    0x1.03fffffffffe2p+0,   0x1.616b5967376dfp+1,
+    0x1.07fffffffff4bp+0,   0x1.66fc20f0337a9p+1,
+    0x1.0bffffffffffdp+0,   0x1.6ca35859290f5p+1,
+   -0x1.fffffffffffe4p-7,   0x1.f80feabfeefa5p-1,
+   -0x1.ffffffffffb0bp-6,   0x1.f03f56a88b5fep-1,
+   -0x1.7ffffffffffa7p-5,   0x1.e88dc6afecfc5p-1,
+   -0x1.ffffffffffea8p-5,   0x1.e0fabfbc702b8p-1,
+   -0x1.3ffffffffffb3p-4,   0x1.d985c89d041acp-1,
+   -0x1.7ffffffffffe3p-4,   0x1.d22e6a0197c06p-1,
+   -0x1.bffffffffff9ap-4,   0x1.caf42e73a4c89p-1,
+   -0x1.fffffffffff98p-4,   0x1.c3d6a24ed822dp-1,
+   -0x1.1ffffffffffe9p-3,   0x1.bcd553b9d7b67p-1,
+   -0x1.3ffffffffffe0p-3,   0x1.b5efd29f24c2dp-1,
+   -0x1.5fffffffff553p-3,   0x1.af25b0a61a9f4p-1,
+   -0x1.7ffffffffff8bp-3,   0x1.a876812c08794p-1,
+   -0x1.9fffffffffe51p-3,   0x1.a1e1d93d68828p-1,
+   -0x1.bffffffffff6ep-3,   0x1.9b674f8f2f3f5p-1,
+   -0x1.dffffffffff7fp-3,   0x1.95067c7837a0cp-1,
+   -0x1.fffffffffff7ap-3,   0x1.8ebef9eac8225p-1,
+   -0x1.0fffffffffffep-2,   0x1.8890636e31f55p-1,
+   -0x1.1ffffffffff41p-2,   0x1.827a56188975ep-1,
+   -0x1.2ffffffffffbap-2,   0x1.7c7c708877656p-1,
+   -0x1.3fffffffffff8p-2,   0x1.769652df22f81p-1,
+   -0x1.4ffffffffff90p-2,   0x1.70c79eba33c2fp-1,
+   -0x1.5ffffffffffdbp-2,   0x1.6b0ff72deb8aap-1,
+   -0x1.6ffffffffff9ap-2,   0x1.656f00bf5798ep-1,
+   -0x1.7ffffffffff9fp-2,   0x1.5fe4615e98eb0p-1,
+   -0x1.8ffffffffffeep-2,   0x1.5a6fc061433cep-1,
+   -0x1.9fffffffffc4ap-2,   0x1.5510c67cd26cdp-1,
+   -0x1.affffffffff30p-2,   0x1.4fc71dc13566bp-1,
+   -0x1.bfffffffffff0p-2,   0x1.4a9271936fd0ep-1,
+   -0x1.cfffffffffff3p-2,   0x1.45726ea84fb8cp-1,
+   -0x1.dfffffffffff3p-2,   0x1.4066c2ff3912bp-1,
+   -0x1.effffffffff80p-2,   0x1.3b6f1ddd05ab9p-1,
+   -0x1.fffffffffffdfp-2,   0x1.368b2fc6f9614p-1,
+   -0x1.0800000000000p-1,   0x1.31baaa7dca843p-1,
+   -0x1.0ffffffffffa4p-1,   0x1.2cfd40f8bdce4p-1,
+   -0x1.17fffffffff0ap-1,   0x1.2852a760d5ce7p-1,
+   -0x1.2000000000000p-1,   0x1.23ba930c1568bp-1,
+   -0x1.27fffffffffbbp-1,   0x1.1f34ba78d568dp-1,
+   -0x1.2fffffffffe32p-1,   0x1.1ac0d5492c1dbp-1,
+   -0x1.37ffffffff042p-1,   0x1.165e9c3e67ef2p-1,
+   -0x1.3ffffffffff77p-1,   0x1.120dc93499431p-1,
+   -0x1.47fffffffff6bp-1,   0x1.0dce171e34ecep-1,
+   -0x1.4fffffffffff1p-1,   0x1.099f41ffbe588p-1,
+   -0x1.57ffffffffe02p-1,   0x1.058106eb8a7aep-1,
+   -0x1.5ffffffffffe5p-1,   0x1.017323fd9002ep-1,
+   -0x1.67fffffffffb0p-1,   0x1.faeab0ae9386cp-2,
+   -0x1.6ffffffffffb2p-1,   0x1.f30ec837503d7p-2,
+   -0x1.77fffffffff7fp-1,   0x1.eb5210d627133p-2,
+   -0x1.7ffffffffffe8p-1,   0x1.e3b40ebefcd95p-2,
+   -0x1.87fffffffffc8p-1,   0x1.dc3448110dae2p-2,
+   -0x1.8fffffffffb30p-1,   0x1.d4d244cf4ef06p-2,
+   -0x1.97fffffffffefp-1,   0x1.cd8d8ed8ee395p-2,
+   -0x1.9ffffffffffa7p-1,   0x1.c665b1e1f1e5cp-2,
+   -0x1.a7fffffffffdcp-1,   0x1.bf5a3b6bf18d6p-2,
+   -0x1.affffffffff95p-1,   0x1.b86ababeef93bp-2,
+   -0x1.b7fffffffffcbp-1,   0x1.b196c0e24d256p-2,
+   -0x1.bffffffffff32p-1,   0x1.aadde095dadf7p-2,
+   -0x1.c7fffffffff6ap-1,   0x1.a43fae4b047c9p-2,
+   -0x1.cffffffffffb6p-1,   0x1.9dbbc01e182a4p-2,
+   -0x1.d7fffffffffcap-1,   0x1.9751adcfa81ecp-2,
+   -0x1.dffffffffffcdp-1,   0x1.910110be0699ep-2,
+   -0x1.e7ffffffffffbp-1,   0x1.8ac983dedbc69p-2,
+   -0x1.effffffffff88p-1,   0x1.84aaa3b8d51a9p-2,
+   -0x1.f7fffffffffbbp-1,   0x1.7ea40e5d6d92ep-2,
+   -0x1.fffffffffffdbp-1,   0x1.78b56362cef53p-2,
+   -0x1.03fffffffff00p+0,   0x1.72de43ddcb1f2p-2,
+   -0x1.07ffffffffe6fp+0,   0x1.6d1e525bed085p-2,
+   -0x1.0bfffffffffd6p+0,   0x1.677532dda1c57p-2};
+
+static const double
+/* Following three values used to scale x to primary range.  */
+  invln2_32 = 0x1.71547652b82fep+5, /* 4.61662413084468283841e+01 */
+  ln2_32hi = 0x1.62e42fee00000p-6, /* 2.16608493865351192653e-02 */
+  ln2_32lo = 0x1.a39ef35793c76p-38, /* 5.96317165397058656257e-12 */
+/* t2-t5 terms used for polynomial computation.  */
+  t2 = 0x1.5555555548f7cp-3, /* 1.6666666666526086527e-1 */
+  t3 = 0x1.5555555545d4ep-5, /* 4.1666666666226079285e-2 */
+  t4 = 0x1.11115b7aa905ep-7, /* 8.3333679843421958056e-3 */
+  t5 = 0x1.6c1728d739765p-10, /* 1.3888949086377719040e-3 */
+/* Maximum value for x to not overflow.  */
+  threshold1 = 0x1.62e42fefa39efp+9, /* 7.09782712893383973096e+02 */
+/* Maximum value for -x to not underflow to zero in FE_TONEAREST mode.  */
+  threshold2 = 0x1.74910d52d3051p+9, /* 7.45133219101941108420e+02 */
+/* Scaling factor used when result near zero.  */
+  twom54 = 0x1.0000000000000p-54; /* 5.55111512312578270212e-17 */
diff --git a/sysdeps/ieee754/dbl-64/slowexp.c b/sysdeps/ieee754/dbl-64/slowexp.c
deleted file mode 100644
index e8fa2e2..0000000
--- a/sysdeps/ieee754/dbl-64/slowexp.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * IBM Accurate Mathematical Library
- * written by International Business Machines Corp.
- * Copyright (C) 2001-2017 Free Software Foundation, Inc.
- *
- * This program 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.
- *
- * This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
- */
-/**************************************************************************/
-/*  MODULE_NAME:slowexp.c                                                 */
-/*                                                                        */
-/*  FUNCTION:slowexp                                                      */
-/*                                                                        */
-/*  FILES NEEDED:mpa.h                                                    */
-/*               mpa.c mpexp.c                                            */
-/*                                                                        */
-/*Converting from double precision to Multi-precision and calculating     */
-/* e^x                                                                    */
-/**************************************************************************/
-#include <math_private.h>
-
-#include <stap-probe.h>
-
-#ifndef USE_LONG_DOUBLE_FOR_MP
-# include "mpa.h"
-void __mpexp (mp_no *x, mp_no *y, int p);
-#endif
-
-#ifndef SECTION
-# define SECTION
-#endif
-
-/*Converting from double precision to Multi-precision and calculating  e^x */
-double
-SECTION
-__slowexp (double x)
-{
-#ifndef USE_LONG_DOUBLE_FOR_MP
-  double w, z, res, eps = 3.0e-26;
-  int p;
-  mp_no mpx, mpy, mpz, mpw, mpeps, mpcor;
-
-  /* Use the multiple precision __MPEXP function to compute the exponential
-     First at 144 bits and if it is not accurate enough, at 768 bits.  */
-  p = 6;
-  __dbl_mp (x, &mpx, p);
-  __mpexp (&mpx, &mpy, p);
-  __dbl_mp (eps, &mpeps, p);
-  __mul (&mpeps, &mpy, &mpcor, p);
-  __add (&mpy, &mpcor, &mpw, p);
-  __sub (&mpy, &mpcor, &mpz, p);
-  __mp_dbl (&mpw, &w, p);
-  __mp_dbl (&mpz, &z, p);
-  if (w == z)
-    {
-      /* Track how often we get to the slow exp code plus
-	 its input/output values.  */
-      LIBC_PROBE (slowexp_p6, 2, &x, &w);
-      return w;
-    }
-  else
-    {
-      p = 32;
-      __dbl_mp (x, &mpx, p);
-      __mpexp (&mpx, &mpy, p);
-      __mp_dbl (&mpy, &res, p);
-
-      /* Track how often we get to the uber-slow exp code plus
-	 its input/output values.  */
-      LIBC_PROBE (slowexp_p32, 2, &x, &res);
-      return res;
-    }
-#else
-  return (double) __ieee754_expl((long double)x);
-#endif
-}
diff --git a/sysdeps/powerpc/power4/fpu/Makefile b/sysdeps/powerpc/power4/fpu/Makefile
index e17d32f..ded9976 100644
--- a/sysdeps/powerpc/power4/fpu/Makefile
+++ b/sysdeps/powerpc/power4/fpu/Makefile
@@ -3,5 +3,4 @@
 ifeq ($(subdir),math)
 CFLAGS-mpa.c += --param max-unroll-times=4 -funroll-loops -fpeel-loops
 CPPFLAGS-slowpow.c += -DUSE_LONG_DOUBLE_FOR_MP=1
-CPPFLAGS-slowexp.c += -DUSE_LONG_DOUBLE_FOR_MP=1
 endif
diff --git a/sysdeps/x86_64/fpu/multiarch/Makefile b/sysdeps/x86_64/fpu/multiarch/Makefile
index c78624b..e06c059 100644
--- a/sysdeps/x86_64/fpu/multiarch/Makefile
+++ b/sysdeps/x86_64/fpu/multiarch/Makefile
@@ -10,7 +10,7 @@ libm-sysdep_routines += s_ceil-sse4_1 s_ceilf-sse4_1 s_floor-sse4_1 \
 
 libm-sysdep_routines += e_exp-fma e_log-fma e_pow-fma s_atan-fma \
 			e_asin-fma e_atan2-fma s_sin-fma s_tan-fma \
-			mplog-fma mpa-fma slowexp-fma slowpow-fma \
+			mplog-fma mpa-fma slowpow-fma \
 			sincos32-fma doasin-fma dosincos-fma \
 			halfulp-fma mpexp-fma \
 			mpatan2-fma mpatan-fma mpsqrt-fma mptan-fma
@@ -32,7 +32,6 @@ CFLAGS-mpsqrt-fma.c = -mfma -mavx2
 CFLAGS-mptan-fma.c = -mfma -mavx2
 CFLAGS-s_atan-fma.c = -mfma -mavx2
 CFLAGS-sincos32-fma.c = -mfma -mavx2
-CFLAGS-slowexp-fma.c = -mfma -mavx2
 CFLAGS-slowpow-fma.c = -mfma -mavx2
 CFLAGS-s_sin-fma.c = -mfma -mavx2
 CFLAGS-s_tan-fma.c = -mfma -mavx2
@@ -48,7 +47,7 @@ CFLAGS-e_powf-fma.c = -mfma -mavx2
 
 libm-sysdep_routines += e_exp-fma4 e_log-fma4 e_pow-fma4 s_atan-fma4 \
 			e_asin-fma4 e_atan2-fma4 s_sin-fma4 s_tan-fma4 \
-			mplog-fma4 mpa-fma4 slowexp-fma4 slowpow-fma4 \
+			mplog-fma4 mpa-fma4 slowpow-fma4 \
 			sincos32-fma4 doasin-fma4 dosincos-fma4 \
 			halfulp-fma4 mpexp-fma4 \
 			mpatan2-fma4 mpatan-fma4 mpsqrt-fma4 mptan-fma4
@@ -70,14 +69,13 @@ CFLAGS-mpsqrt-fma4.c = -mfma4
 CFLAGS-mptan-fma4.c = -mfma4
 CFLAGS-s_atan-fma4.c = -mfma4
 CFLAGS-sincos32-fma4.c = -mfma4
-CFLAGS-slowexp-fma4.c = -mfma4
 CFLAGS-slowpow-fma4.c = -mfma4
 CFLAGS-s_sin-fma4.c = -mfma4
 CFLAGS-s_tan-fma4.c = -mfma4
 
 libm-sysdep_routines += e_exp-avx e_log-avx s_atan-avx \
 			e_atan2-avx s_sin-avx s_tan-avx \
-			mplog-avx mpa-avx slowexp-avx \
+			mplog-avx mpa-avx \
 			mpexp-avx
 
 CFLAGS-e_atan2-avx.c = -msse2avx -DSSE2AVX
@@ -88,7 +86,6 @@ CFLAGS-mpexp-avx.c = -msse2avx -DSSE2AVX
 CFLAGS-mplog-avx.c = -msse2avx -DSSE2AVX
 CFLAGS-s_atan-avx.c = -msse2avx -DSSE2AVX
 CFLAGS-s_sin-avx.c = -msse2avx -DSSE2AVX
-CFLAGS-slowexp-avx.c = -msse2avx -DSSE2AVX
 CFLAGS-s_tan-avx.c = -msse2avx -DSSE2AVX
 endif
 
diff --git a/sysdeps/x86_64/fpu/multiarch/e_exp-avx.c b/sysdeps/x86_64/fpu/multiarch/e_exp-avx.c
index ee5dd6d..afd9174 100644
--- a/sysdeps/x86_64/fpu/multiarch/e_exp-avx.c
+++ b/sysdeps/x86_64/fpu/multiarch/e_exp-avx.c
@@ -1,6 +1,5 @@
 #define __ieee754_exp __ieee754_exp_avx
 #define __exp1 __exp1_avx
-#define __slowexp __slowexp_avx
 #define SECTION __attribute__ ((section (".text.avx")))
 
 #include <sysdeps/ieee754/dbl-64/e_exp.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/e_exp-fma.c b/sysdeps/x86_64/fpu/multiarch/e_exp-fma.c
index 6e0fdb7..765b1b9 100644
--- a/sysdeps/x86_64/fpu/multiarch/e_exp-fma.c
+++ b/sysdeps/x86_64/fpu/multiarch/e_exp-fma.c
@@ -1,6 +1,5 @@
 #define __ieee754_exp __ieee754_exp_fma
 #define __exp1 __exp1_fma
-#define __slowexp __slowexp_fma
 #define SECTION __attribute__ ((section (".text.fma")))
 
 #include <sysdeps/ieee754/dbl-64/e_exp.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c b/sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c
index ae6eb67..9ac7aca 100644
--- a/sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c
+++ b/sysdeps/x86_64/fpu/multiarch/e_exp-fma4.c
@@ -1,6 +1,5 @@
 #define __ieee754_exp __ieee754_exp_fma4
 #define __exp1 __exp1_fma4
-#define __slowexp __slowexp_fma4
 #define SECTION __attribute__ ((section (".text.fma4")))
 
 #include <sysdeps/ieee754/dbl-64/e_exp.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/slowexp-avx.c b/sysdeps/x86_64/fpu/multiarch/slowexp-avx.c
deleted file mode 100644
index d01c6d7..0000000
--- a/sysdeps/x86_64/fpu/multiarch/slowexp-avx.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#define __slowexp __slowexp_avx
-#define __add __add_avx
-#define __dbl_mp __dbl_mp_avx
-#define __mpexp __mpexp_avx
-#define __mul __mul_avx
-#define __sub __sub_avx
-#define SECTION __attribute__ ((section (".text.avx")))
-
-#include <sysdeps/ieee754/dbl-64/slowexp.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/slowexp-fma.c b/sysdeps/x86_64/fpu/multiarch/slowexp-fma.c
deleted file mode 100644
index 6fffca1..0000000
--- a/sysdeps/x86_64/fpu/multiarch/slowexp-fma.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#define __slowexp __slowexp_fma
-#define __add __add_fma
-#define __dbl_mp __dbl_mp_fma
-#define __mpexp __mpexp_fma
-#define __mul __mul_fma
-#define __sub __sub_fma
-#define SECTION __attribute__ ((section (".text.fma")))
-
-#include <sysdeps/ieee754/dbl-64/slowexp.c>
diff --git a/sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c b/sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c
deleted file mode 100644
index 3bcde84..0000000
--- a/sysdeps/x86_64/fpu/multiarch/slowexp-fma4.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#define __slowexp __slowexp_fma4
-#define __add __add_fma4
-#define __dbl_mp __dbl_mp_fma4
-#define __mpexp __mpexp_fma4
-#define __mul __mul_fma4
-#define __sub __sub_fma4
-#define SECTION __attribute__ ((section (".text.fma4")))
-
-#include <sysdeps/ieee754/dbl-64/slowexp.c>
