Update. cvs/libc-ud-970924

1997-09-25 00:23  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dl-profile.c: Correct implementation.

	* io/ftwtest-sh: Don't depend on TMPDIR == /tmp.

	* locale/setlocale.c: Rewrite a bit for more clarity.

	* math/Makefile (libm-calls): Add w_exp2.
	* math/math_private.h: Add prototypes for __ieee754_exp2{,f,l}.
	* sysdeps/libm-i387/s_exp2.S: Change name to __ieee754_exp2.
	* sysdeps/libm-i387/s_exp2f.S: Likewise.
	* sysdeps/libm-i387/s_exp2l.S: Likewise.
	* sysdeps/libm-ieee754/k_standard.c: Add error cases for exp2.

	* string/bits/string2.h (__strcpy_small): Optimize.
	(__stpcpy_small): Likewise.
	(strncpy): Use variable for dest argument since it's used more than
	once.
	(strncat): Likewise.
	(strcmp): Add optimization for this function.
	* sysdeps/i386/i486/string.h (strlen): Correctly use __builtin_strlen.
	(__strcpy_small): Optimize.
	(__stpcpy_small): Likewise.
	(__stpcpy_c): Correctly use __mempcpy_* macros.
	(__mempcpy_by2, __mempcpy_by4, __mempcpy_byn): Return pointer to
	byte following last copied.
	(strncat): Use variable for dest argument since it's used more than
	once.
	(strcmp): Add optimization for this function.

	* sysdeps/i386/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE): Use
	.text and .previous to select correct section.

1997-09-23 19:56  Philip Blundell  <Philip.Blundell@pobox.com>

	* configure.in: Add `--disable-versioning' option to suppress the
	use of symbol versions even if binutils claims to support it.

1997-09-24 20:10  Philip Blundell  <Philip.Blundell@pobox.com>

	* csu/Makefile (before-compile): Don't try to build abi-tags.h if
	not using ELF.

1997-09-21  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/sofini.c [HAVE_DWARF2_UNWIND_INFO]: Supply termination for
	the frame unwind info section.

	* elf/soinit.c [HAVE_DWARF2_UNWIND_INFO]: Register and unregister
	the frame unwind info.

	* config.h.in (HAVE_DWARF2_UNWIND_INFO): Add #undef.

	* configure.in: Check whether gcc supports DWARF2 unwind info.

	* libc.map: Export frame handling tables.

1997-09-10 06:56  Geoff Keating  <geoffk@ozemail.com.au>

	* sysdeps/unix/sysv/linux/powerpc/bits/kernel_termios.h:
	Use the size of the kernel's termios structure for ioctls.

	* sysdeps/powerpc/dl-machine.h: Prepare for library profiling.

	* sysdeps/powerpc/bits/mathinline.h: Add slightly slower versions
	of the C9X FP comparison macros. Delete 'fabs' and 'sqrt' inline
	routines, because gcc has them as internals.

	* sysdeps/powerpc/Makefile (pic-ccflags): Define this instead of
	CFLAGS-.os.

	* sysdeps/powerpc/bzero.S: New file.
	* sysdeps/powerpc/strcat.c: New file.
	* sysdeps/powerpc/strcpy.S: New file.
	* sysdeps/powerpc/stpcpy.S: New file.

	* math/Makefile: Add atest_exp2, test-reduce.
	* math/atest_exp2.c: New file.
	* math/test-reduce.c: New file.
	* sysdeps/libm-ieee754/Dist: New file.
	* sysdeps/libm-ieee754/s_exp2.c: New file.
	* sysdeps/libm-ieee754/s_exp2f.c: New file.
	* sysdeps/libm-ieee754/t_exp2.h: New file.
	* sysdeps/libm-ieee754/t_exp2f.h: New file.
	* math/libm-test.c (exp2_test): Add some more tests.

	* Rules: Use empty.os instead of empty.o, since it gets linked into
	libc.so...
	* configure.in: Add --disable-static to disable building .a files.
	* config.make.in: Substitute the new variable.
	* Makeconfig: Don't build .o files if not building .a files.

	* elf/dl-runtime.c (fixup): Factor out call to elf_machine_relplt.
	(profile_fixup): Likewise.

1997-09-23  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* posix/globtest.c (main): Change to directory passed as first
	argument.

	* posix/globtest.sh: Don't cd before running the program, instead
	pass testdir as argument, so that $common_objpfx remains valid.

1997-09-23 18:01  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/nis_call.c (__do_niscall2): Fix multiple Server support.

	* nis/nis_findserver.c: Save latest working sockaddr_in.

1997-09-17 22:07  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* configure.in: Automatically determine whether as and ld are the
	GNU versions.
	(options):  --with-gnu-{as,ld,binutils} replaced by
	single option --with-binutils=PATH specifying a -B option to gcc.
	* aclocal.m4: Two new macros defined, LIBC_PROG_FOO_GNU and
	LIBC_PROG_BINUTILS.

	* configure.in: Allow the user to force configuration for
	unsupported platforms with an undocumented option.

1997-09-22 16:55  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* sunrpc/get_myaddr.c (get_myaddress): Avoid loopback interfaces,
	return loopback address only if there is no other interface.

	* nis/Makefile: Add nis_callback libnsl-routines.

	* nis/nis_add.c: Use new __do_niscall* interface.
	* nis/nis_cache.c: Likewise.
	* nis/nis_checkpoint.c: Likewise.
	* nis/nis_lookup.c: Likewise.
	* nis/nis_mkdir.c: Likewise.
	* nis/nis_modify.c: Likewise.
	* nis/nis_ping.c: Likewise.
	* nis/nis_remove.c: Likewise.
	* nis/nis_rmdir.c: Likewise.
	* nis/nis_server.c: Likewise.
	* nis/nis_util.c: Likewise.

	* nis/rpcsvc/nis.h: Make C++ safe.

	* nis/nss_nisplus/nisplus-publickey.c (getsecretkey): Fix use
	of variables.

	* nis/nis_findserv.c: Make thread safe.

	* nis/nis_call.c: Add support for callback, Fix use of variables.
	* nis/nis_table.c: Add support for callback, FOLLOW_PATH and
	ALL_RESULTS.
	* nis/nis_callback.c: New, callback functions.
	* nis/nis_intern.h: Add callback declarations.

1997-09-20  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* string/bits/string2.h: Fix logic in preprocessor directive.
	(__strsep_1c, __strsep_g): Don't declare __retval as pointing to
	const, to save a cast and a possible warning.

1997-09-22 04:12  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/i486/atomicity.h (exchange_and_add): Really address
	memory in xadd not %1.

1997-09-21 13:56  Ulrich Drepper  <drepper@cygnus.com>

	* manual/maint.texi (Supported Configurations): Add SPARC64 to
	list of supported platforms.

9 files changed, 1275 insertions, 1 deletions

diff --git a/sysdeps/libm-ieee754/Dist b/sysdeps/libm-ieee754/Dist
new file mode 100644
index 0000000000..4b085470f5
--- /dev/null
+++ b/sysdeps/libm-ieee754/Dist
@@ -0,0 +1,2 @@
+t_exp2.h
+t_exp2f.h
diff --git a/sysdeps/libm-ieee754/k_standard.c b/sysdeps/libm-ieee754/k_standard.c
index 391ab057ca..6c410c4c1a 100644
--- a/sysdeps/libm-ieee754/k_standard.c
+++ b/sysdeps/libm-ieee754/k_standard.c
@@ -80,6 +80,9 @@ static double zero = 0.0;	/* used as const */
  *	40-- gamma(finite) overflow
  *	41-- gamma(-integer)
  *	42-- pow(NaN,0.0)
+ *	43-- +0**neg
+ *	44-- exp2 overflow
+ *	45-- exp2 underflow
  */
 
 
@@ -865,7 +868,38 @@ static double zero = 0.0;	/* used as const */
 		}
 		break;
 
-		/* #### Last used is 43/143/243 ### */
+	    case 44:
+	    case 144:
+	    case 244:
+		/* exp(finite) overflow */
+		exc.type = OVERFLOW;
+		exc.name = type < 100 ? "exp2" : (type < 200
+						 ? "exp2f" : "exp2l");
+		if (_LIB_VERSION == _SVID_)
+		  exc.retval = HUGE;
+		else
+		  exc.retval = HUGE_VAL;
+		if (_LIB_VERSION == _POSIX_)
+		  __set_errno (ERANGE);
+		else if (!matherr(&exc)) {
+			__set_errno (ERANGE);
+		}
+		break;
+	    case 45:
+	    case 145:
+	    case 245:
+		/* exp(finite) underflow */
+		exc.type = UNDERFLOW;
+		exc.name = type < 100 ? "exp2" : (type < 200
+						 ? "exp2f" : "exp2l");
+		exc.retval = zero;
+		if (_LIB_VERSION == _POSIX_)
+		  __set_errno (ERANGE);
+		else if (!matherr(&exc)) {
+			__set_errno (ERANGE);
+		}
+		break;
+		/* #### Last used is 44/144/244 ### */
 	}
 	return exc.retval;
 }
diff --git a/sysdeps/libm-ieee754/s_exp2.c b/sysdeps/libm-ieee754/s_exp2.c
new file mode 100644
index 0000000000..e10fae5492
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_exp2.c
@@ -0,0 +1,128 @@
+/* Double-precision floating point 2^x.
+   Copyright (C) 1997 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 <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 TWO1000 = 1.071508607186267320948e+301;
+static const volatile double TWOM1000 = 9.3326361850321887899e-302;
+
+double
+__ieee754_exp2 (double x)
+{
+  static const uint32_t a_inf = 0x7f800000;
+  /* Check for usual case.  */
+  if (isless (x, (double) DBL_MAX_EXP)
+      && isgreater (x, (double) (DBL_MIN_EXP - 1)))
+    {
+      static const float TWO43 = 8796093022208.0;
+      int tval;
+      double rx, x22;
+      union ieee754_double ex2_u;
+      fenv_t oldenv;
+
+      feholdexcept (&oldenv);
+      fesetround (FE_TONEAREST);
+
+      /* 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.  */
+      if (x >= 0)
+	{
+	  rx = x + TWO43;
+	  rx -= TWO43;
+	}
+      else
+	{
+	  rx = x - TWO43;
+	  rx += TWO43;
+	}
+      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];
+      ex2_u.ieee.exponent += tval >> 9;
+
+      /* 4. Approximate 2^x2 - 1, using a fourth-degree polynomial,
+	 2^x2 ~= sum(k=0..4 | (x2 * ln(2))^k / k! ) +
+	 so
+	 2^x2 - 1 ~= sum(k=1..4 | (x2 * ln(2))^k / k! )
+	 with error less than 2^(1/1024) * (x2 * ln(2))^5 / 5! < 1.2e-18.  */
+
+      x22 = (((.0096181291076284772
+	       * x + .055504108664821580)
+	      * x + .240226506959100712)
+	     * x + .69314718055994531) * ex2_u.d;
+
+      /* 5. Return (2^x2-1) * 2^(t/512+e+ex) + 2^(t/512+e+ex).  */
+      fesetenv (&oldenv);
+
+      /* Need to check: does this set FE_INEXACT correctly? */
+      return x22 * x + ex2_u.d;
+    }
+  /* 2^inf == inf, with no error.  */
+  else if (x == *(const float *) &a_inf)
+    return x;
+  /* Check for overflow.  */
+  else if (isgreaterequal (x, (double) DBL_MAX_EXP))
+    return TWO1000 * TWO1000;
+  /* And underflow (including -inf).  */
+  else if (isless (x, (double) (DBL_MIN_EXP - DBL_MANT_DIG)))
+    return TWOM1000 * TWOM1000;
+  /* Maybe the result needs to be a denormalised number...  */
+  else if (!isnan (x))
+    return __ieee754_exp2 (x + 1000.0) * TWOM1000;
+  else /* isnan(x) */
+    return x + x;
+}
diff --git a/sysdeps/libm-ieee754/s_exp2f.c b/sysdeps/libm-ieee754/s_exp2f.c
new file mode 100644
index 0000000000..e50ac77792
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_exp2f.c
@@ -0,0 +1,126 @@
+/* Single-precision floating point 2^x.
+   Copyright (C) 1997 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.
+   */
+#define _GNU_SOURCE
+#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 huge = 1e+30;
+
+float
+__ieee754_exp2f (float x)
+{
+  static const uint32_t a_inf = 0x7f800000;
+  /* Check for usual case.  */
+  if (isless (x, (float) FLT_MAX_EXP)
+      && isgreater (x, (float) (FLT_MIN_EXP - 1)))
+    {
+      static const float TWO16 = 65536.0;
+      int tval;
+      float rx, x22;
+      union ieee754_float ex2_u;
+      fenv_t oldenv;
+
+      feholdexcept (&oldenv);
+      fesetround (FE_TONEAREST);
+
+      /* 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.  */
+      if (x >= 0)
+	{
+	  rx = x + TWO16;
+	  rx -= TWO16;
+	}
+      else
+	{
+	  rx = x - TWO16;
+	  rx += TWO16;
+	}
+      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 -= exp2_deltatable[tval & 255];
+
+      /* 3. Compute ex2 = 2^(t/255+e+ex).  */
+      ex2_u.f = exp2_accuratetable[tval & 255];
+      ex2_u.ieee.exponent += tval >> 8;
+
+      /* 4. Approximate 2^x2 - 1, using a second-degree polynomial,
+	 2^x2 ~= sum(k=0..2 | (x2 * ln(2))^k / k! ) +
+	 so
+	 2^x2 - 1 ~= sum(k=1..4 | (x2 * ln(2))^k / k! )
+	 with error less than 2^(1/512+7e-4) * (x2 * ln(2))^3 / 3! < 1.2e-18.  */
+
+      x22 = (.240226507f * x + .6931471806f) * ex2_u.f;
+
+      /* 5. Return (2^x2-1) * 2^(t/512+e+ex) + 2^(t/512+e+ex).  */
+      fesetenv (&oldenv);
+
+      /* Need to check: does this set FE_INEXACT correctly? */
+      return x22 * x + ex2_u.f;
+    }
+  /* 2^inf == inf, with no error.  */
+  else if (x == *(const float *)&a_inf)
+    {
+      return x;
+    }
+  /* Check for overflow.  */
+  else if (isgreaterequal (x, (float) FLT_MAX_EXP))
+    return huge * huge;
+  /* And underflow (including -inf).  */
+  else if (isless (x, (float) (FLT_MIN_EXP - FLT_MANT_DIF)))
+    return TWOM100 * TWOM100;
+  /* Maybe the result needs to be a denormalised number...  */
+  else if (!isnan (x))
+    return __ieee754_exp2f (x + 100.0) * TWOM100;
+  else /* isnan(x) */
+    return x + x;
+}
diff --git a/sysdeps/libm-ieee754/t_exp2.h b/sysdeps/libm-ieee754/t_exp2.h
new file mode 100644
index 0000000000..1fd73338cf
--- /dev/null
+++ b/sysdeps/libm-ieee754/t_exp2.h
@@ -0,0 +1,585 @@
+/* These values are accurate to 52+12 bits when represented as
+   a double.  */
+static const double exp2_accuratetable[512] = {
+0.707106781187802013759 /* 0x0.b504f333fb3f80007 */,
+0.708064712808760599040 /* 0x0.b543baa0f71b38000 */,
+0.709023942160304065938 /* 0x0.b58297d3a8d518002 */,
+0.709984470998547667624 /* 0x0.b5c18ad39b4ba0001 */,
+0.710946301084324217006 /* 0x0.b60093a85e8d30001 */,
+0.711909434180505784637 /* 0x0.b63fb25984e628005 */,
+0.712873872052760648733 /* 0x0.b67ee6eea3b5f8003 */,
+0.713839616467838999908 /* 0x0.b6be316f518c98001 */,
+0.714806669195984345523 /* 0x0.b6fd91e328d148007 */,
+0.715775032009894562898 /* 0x0.b73d0851c69e20002 */,
+0.716744706683768884058 /* 0x0.b77c94c2c9b3d0003 */,
+0.717715694995770148178 /* 0x0.b7bc373dd52eb0003 */,
+0.718687998724665488852 /* 0x0.b7fbefca8cd530004 */,
+0.719661619652575468291 /* 0x0.b83bbe70981da8001 */,
+0.720636559564428180758 /* 0x0.b87ba337a194b0006 */,
+0.721612820246623098989 /* 0x0.b8bb9e27556508004 */,
+0.722590403488338473025 /* 0x0.b8fbaf4762c798006 */,
+0.723569311081411870036 /* 0x0.b93bd69f7be1d0000 */,
+0.724549544820974333906 /* 0x0.b97c1437567828007 */,
+0.725531106502312561633 /* 0x0.b9bc6816a87ae8002 */,
+0.726513997924421062181 /* 0x0.b9fcd2452bee00000 */,
+0.727498220889519875430 /* 0x0.ba3d52ca9e6148002 */,
+0.728483777200401694265 /* 0x0.ba7de9aebe05c8003 */,
+0.729470668664712662563 /* 0x0.babe96f94e62a8002 */,
+0.730458897090379144517 /* 0x0.baff5ab2134df0004 */,
+0.731448464287988597833 /* 0x0.bb4034e0d38ab0000 */,
+0.732439372072965166897 /* 0x0.bb81258d5b2d60001 */,
+0.733431622260458326859 /* 0x0.bbc22cbf75fd28001 */,
+0.734425216668725511232 /* 0x0.bc034a7ef32c00001 */,
+0.735420157118880535324 /* 0x0.bc447ed3a50fe0005 */,
+0.736416445434497690674 /* 0x0.bc85c9c560b350001 */,
+0.737414083433310718618 /* 0x0.bcc72b5bf4b4e0000 */,
+0.738413072966152328496 /* 0x0.bd08a39f5417a8007 */,
+0.739413415848264365956 /* 0x0.bd4a32974abcd0002 */,
+0.740415113911250699637 /* 0x0.bd8bd84bb68300002 */,
+0.741418168994518067562 /* 0x0.bdcd94c47ddd30003 */,
+0.742422582936659858376 /* 0x0.be0f6809865968006 */,
+0.743428357577745613238 /* 0x0.be515222b72530003 */,
+0.744435494762383687126 /* 0x0.be935317fc6ba0002 */,
+0.745443996335090397492 /* 0x0.bed56af1423de8001 */,
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+1.087559060917626885283 /* 0x1.166a45471c13f0008 */,
+1.089032398810997337465 /* 0x1.16cad3c92d7b50009 */,
+1.090507732647478578212 /* 0x1.172b83c7c18b5000f */,
+1.091985065182095926460 /* 0x1.178c554ead72a000c */,
+1.093464399073070136880 /* 0x1.17ed48695befe000c */,
+1.094945737045367906172 /* 0x1.184e5d23812500007 */,
+1.096429081816546080591 /* 0x1.18af9388c90e40005 */,
+1.097914436104650892651 /* 0x1.1910eba4e031a0001 */,
+1.099401802629782043408 /* 0x1.19726583755720003 */,
+1.100891184121537858001 /* 0x1.19d4013041b860007 */,
+1.102382583308144647940 /* 0x1.1a35beb6fd0cd0007 */,
+1.103876002922312915544 /* 0x1.1a979e2363fa10000 */,
+1.105371445702084232160 /* 0x1.1af99f8139025000e */,
+1.106868914387219016199 /* 0x1.1b5bc2dc408b9000e */,
+1.108368411723785085252 /* 0x1.1bbe084045eb30002 */,
+1.109869940458469095340 /* 0x1.1c206fb91524c000e */,
+1.111373503344554869449 /* 0x1.1c82f952817cc0001 */,
+1.112879103137133007859 /* 0x1.1ce5a51860344000f */,
+1.114386742595953938610 /* 0x1.1d4873168babf000e */,
+1.115896424484008608911 /* 0x1.1dab6358e1d4a000f */,
+1.117408151567338414664 /* 0x1.1e0e75eb43f9c000c */,
+1.118921926613465345265 /* 0x1.1e71aad995078000f */,
+1.120437752409564780022 /* 0x1.1ed5022fcd8600003 */,
+1.121955631720569668277 /* 0x1.1f387bf9cd88b0000 */,
+1.123475567332998359439 /* 0x1.1f9c18438cdec000a */,
+1.124997562033035469759 /* 0x1.1fffd71902f970002 */,
+1.126521618608448571713 /* 0x1.2063b88629079000e */,
+1.128047739853580200284 /* 0x1.20c7bc96ff72a0002 */,
+1.129575928566289189112 /* 0x1.212be3578a81e0006 */,
+1.131106187546149888259 /* 0x1.21902cd3d05f70007 */,
+1.132638519598779369743 /* 0x1.21f49917ddda5000c */,
+1.134172927531616359481 /* 0x1.2259282fc1c24000e */,
+1.135709414157753949251 /* 0x1.22bdda27911e90007 */,
+1.137247982292643566662 /* 0x1.2322af0b638e60007 */,
+1.138788634756517259562 /* 0x1.2387a6e755f270000 */,
+1.140331374372893558110 /* 0x1.23ecc1c788c890006 */,
+1.141876203969685699176 /* 0x1.2451ffb821639000c */,
+1.143423126377846266197 /* 0x1.24b760c5486dc0009 */,
+1.144972144431494420774 /* 0x1.251ce4fb2a0cc0005 */,
+1.146523260971646252006 /* 0x1.25828c65f9fb8000d */,
+1.148076478839068270690 /* 0x1.25e85711ebaeb0000 */,
+1.149631800883562204903 /* 0x1.264e450b3c8a30008 */,
+1.151189229953253789786 /* 0x1.26b4565e281a20003 */,
+1.152748768902654319399 /* 0x1.271a8b16f0f000002 */,
+1.154310420590433317050 /* 0x1.2780e341de2fc0001 */,
+1.155874187878668246681 /* 0x1.27e75eeb3abc90007 */,
+1.157440073633736243899 /* 0x1.284dfe1f5633e000a */,
+1.159008080725518974322 /* 0x1.28b4c0ea840d90001 */,
+1.160578212048386514965 /* 0x1.291ba75932ae60000 */,
+1.162150470417516290340 /* 0x1.2982b177796850008 */,
+1.163724858777502646494 /* 0x1.29e9df51fdd900001 */,
+1.165301379991388053320 /* 0x1.2a5130f50bf34000e */,
+1.166880036952526289469 /* 0x1.2ab8a66d10fdc0008 */,
+1.168460832550151540268 /* 0x1.2b203fc675b7a000a */,
+1.170043769683112966389 /* 0x1.2b87fd0dad7260008 */,
+1.171628851252754177681 /* 0x1.2befde4f2e3da000d */,
+1.173216080163546060084 /* 0x1.2c57e397719940002 */,
+1.174805459325657830448 /* 0x1.2cc00cf2f7491000c */,
+1.176396991650083379037 /* 0x1.2d285a6e3ff90000b */,
+1.177990680055698513602 /* 0x1.2d90cc15d4ff90005 */,
+1.179586527463262646306 /* 0x1.2df961f641c57000c */,
+1.181184536796979545103 /* 0x1.2e621c1c157cd000d */,
+1.182784710984701836994 /* 0x1.2ecafa93e35af0004 */,
+1.184387052960675701386 /* 0x1.2f33fd6a459cb0000 */,
+1.185991565661414393112 /* 0x1.2f9d24abd8fd1000e */,
+1.187598252026902612178 /* 0x1.300670653e083000a */,
+1.189207115003001469262 /* 0x1.306fe0a31bc040008 */,
+1.190818157535919796833 /* 0x1.30d9757219895000e */,
+1.192431382587621380206 /* 0x1.31432edef01a1000f */,
+1.194046793097208292195 /* 0x1.31ad0cf63f0630008 */,
+1.195664392040319823392 /* 0x1.32170fc4ce0db000c */,
+1.197284182375793593084 /* 0x1.32813757527750005 */,
+1.198906167074650808198 /* 0x1.32eb83ba8eef3000f */,
+1.200530349107333139048 /* 0x1.3355f4fb457e5000d */,
+1.202156731453099647353 /* 0x1.33c08b2641df9000c */,
+1.203785317090505513368 /* 0x1.342b46484f07b0005 */,
+1.205416109005122526928 /* 0x1.3496266e3fa270005 */,
+1.207049110184904572310 /* 0x1.35012ba4e8fa10000 */,
+1.208684323627194912036 /* 0x1.356c55f92aabb0004 */,
+1.210321752322854882437 /* 0x1.35d7a577dd33f0004 */,
+1.211961399276747286580 /* 0x1.36431a2de8748000d */,
+1.213603267492579629347 /* 0x1.36aeb4283309e000c */,
+1.215247359985374142610 /* 0x1.371a7373b00160000 */,
+1.216893679753690671322 /* 0x1.3786581d404e90000 */,
+1.218542229828181611183 /* 0x1.37f26231e82e4000c */,
+1.220193013225231215567 /* 0x1.385e91be9c2d20002 */,
+1.221846032973555429280 /* 0x1.38cae6d05e66f0000 */,
+1.223501292099485437962 /* 0x1.393761742e5830001 */,
+1.225158793636904830441 /* 0x1.39a401b713cb3000e */,
+1.226818540625497444577 /* 0x1.3a10c7a61ceae0007 */,
+1.228480536107136034131 /* 0x1.3a7db34e5a4a50003 */,
+1.230144783126481566885 /* 0x1.3aeac4bcdf8d60001 */,
+1.231811284734168454619 /* 0x1.3b57fbfec6e950008 */,
+1.233480043984379381835 /* 0x1.3bc559212e7a2000f */,
+1.235151063936380300149 /* 0x1.3c32dc3139f2a0004 */,
+1.236824347652524913647 /* 0x1.3ca0853c106ac000e */,
+1.238499898199571624970 /* 0x1.3d0e544eddd240003 */,
+1.240177718649636107175 /* 0x1.3d7c4976d3fcd0000 */,
+1.241857812073360767273 /* 0x1.3dea64c1231f70004 */,
+1.243540181554270152039 /* 0x1.3e58a63b099920005 */,
+1.245224830175077013244 /* 0x1.3ec70df1c4e46000e */,
+1.246911761022835740725 /* 0x1.3f359bf29741c000e */,
+1.248600977188942806639 /* 0x1.3fa4504ac7b800009 */,
+1.250292481770148400634 /* 0x1.40132b07a330d000a */,
+1.251986277866492969263 /* 0x1.40822c367a340000b */,
+1.253682368581898742876 /* 0x1.40f153e4a18e0000d */,
+1.255380757024939564249 /* 0x1.4160a21f73289000d */,
+1.257081446308726757662 /* 0x1.41d016f44deaa000c */,
+1.258784439550028944083 /* 0x1.423fb27094c090008 */,
+1.260489739869405489991 /* 0x1.42af74a1aec1c0006 */,
+1.262197350394008266193 /* 0x1.431f5d950a453000c */,
+1.263907274252603851764 /* 0x1.438f6d58176860004 */,
+1.265619514578811388761 /* 0x1.43ffa3f84b9eb000d */,
+1.267334074511444086425 /* 0x1.44700183221180008 */,
+1.269050957191869555296 /* 0x1.44e0860618b930006 */,
+1.270770165768063009230 /* 0x1.4551318eb4d20000e */,
+1.272491703389059036805 /* 0x1.45c2042a7cc26000b */,
+1.274215573211836316547 /* 0x1.4632fde6ffacd000d */,
+1.275941778396075143580 /* 0x1.46a41ed1cfac40001 */,
+1.277670322103555911043 /* 0x1.471566f8812ac0000 */,
+1.279401207505722393185 /* 0x1.4786d668b33260005 */,
+1.281134437771823675369 /* 0x1.47f86d3002637000a */,
+1.282870016078732078362 /* 0x1.486a2b5c13c00000e */,
+1.284607945607987078432 /* 0x1.48dc10fa916bd0004 */,
+1.286348229545787758022 /* 0x1.494e1e192aaa30007 */,
+1.288090871080605159846 /* 0x1.49c052c5913df000c */,
+1.289835873406902644341 /* 0x1.4a32af0d7d8090002 */,
+1.291583239722392528754 /* 0x1.4aa532feab5e10002 */,
+1.293332973229098792374 /* 0x1.4b17dea6db8010008 */,
+1.295085077135345708087 /* 0x1.4b8ab213d57d9000d */,
+1.296839554650994097442 /* 0x1.4bfdad53629e10003 */,
+1.298596408992440220988 /* 0x1.4c70d0735358a000d */,
+1.300355643380135983739 /* 0x1.4ce41b817c99e0001 */,
+1.302117261036232376282 /* 0x1.4d578e8bb52cb0003 */,
+1.303881265192249561154 /* 0x1.4dcb299fde2920008 */,
+1.305647659079073541490 /* 0x1.4e3eeccbd7f4c0003 */,
+1.307416445934474813521 /* 0x1.4eb2d81d8a86f000b */,
+1.309187629001237640529 /* 0x1.4f26eba2e35a5000e */,
+1.310961211525240921493 /* 0x1.4f9b2769d35090009 */,
+1.312737196755087820678 /* 0x1.500f8b804e4a30000 */,
+1.314515587949291131086 /* 0x1.508417f4530d00009 */,
+1.316296388365203462468 /* 0x1.50f8ccd3df1840003 */,
+1.318079601265708777911 /* 0x1.516daa2cf60020002 */,
+1.319865229921343141607 /* 0x1.51e2b00da3c2b0007 */,
+1.321653277603506371251 /* 0x1.5257de83f5512000d */,
+1.323443747588034513690 /* 0x1.52cd359dfc7d5000e */,
+1.325236643161341820781 /* 0x1.5342b569d6baa000f */,
+1.327031967602244177939 /* 0x1.53b85df59921b0000 */,
+1.328829724206201046165 /* 0x1.542e2f4f6b17e0006 */,
+1.330629916266568235675 /* 0x1.54a4298571b27000e */,
+1.332432547083447937938 /* 0x1.551a4ca5d97190009 */,
+1.334237619959296017340 /* 0x1.559098bed16bf0008 */,
+1.336045138203900251029 /* 0x1.56070dde90c800000 */,
+1.337855105129210686631 /* 0x1.567dac13510cd0009 */,
+1.339667524053662184301 /* 0x1.56f4736b52e2c000c */,
+1.341482398296830025383 /* 0x1.576b63f4d8333000f */,
+1.343299731186792467254 /* 0x1.57e27dbe2c40e0003 */,
+1.345119526053918823702 /* 0x1.5859c0d59cd37000f */,
+1.346941786233264881662 /* 0x1.58d12d497cd9a0005 */,
+1.348766515064854010261 /* 0x1.5948c32824b87000c */,
+1.350593715891792223641 /* 0x1.59c0827ff03890007 */,
+1.352423392064920459908 /* 0x1.5a386b5f43a3e0006 */,
+1.354255546937278120764 /* 0x1.5ab07dd485af1000c */,
+1.356090183865519494030 /* 0x1.5b28b9ee21085000f */,
+1.357927306213322804534 /* 0x1.5ba11fba8816e000b */,
+1.359766917346459269620 /* 0x1.5c19af482f8f2000f */,
+1.361609020638567812980 /* 0x1.5c9268a594cc00004 */,
+1.363453619463660171403 /* 0x1.5d0b4be135916000c */,
+1.365300717204201985683 /* 0x1.5d84590998eeb0005 */,
+1.367150317245710233754 /* 0x1.5dfd902d494e40001 */,
+1.369002422974674892971 /* 0x1.5e76f15ad22c40008 */,
+1.370857037789471544224 /* 0x1.5ef07ca0cc166000b */,
+1.372714165088220639199 /* 0x1.5f6a320dcf5280006 */,
+1.374573808273481745378 /* 0x1.5fe411b0790800009 */,
+1.376435970755022220096 /* 0x1.605e1b976e4b1000e */,
+1.378300655944092456600 /* 0x1.60d84fd155d15000e */,
+1.380167867259843417228 /* 0x1.6152ae6cdf0030003 */,
+1.382037608124419003675 /* 0x1.61cd3778bc879000d */,
+1.383909881963391264069 /* 0x1.6247eb03a4dc40009 */,
+1.385784692209972801544 /* 0x1.62c2c91c56d9b0002 */,
+1.387662042298923203992 /* 0x1.633dd1d1930ec0001 */,
+1.389541935670444372533 /* 0x1.63b90532200630004 */,
+1.391424375772021271329 /* 0x1.6434634ccc4cc0007 */,
+1.393309366052102982208 /* 0x1.64afec30677e90008 */,
+1.395196909966106124701 /* 0x1.652b9febc8e0f000d */,
+1.397087010973788290271 /* 0x1.65a77e8dcc7f10004 */,
+1.398979672539331309267 /* 0x1.66238825534170000 */,
+1.400874898129892187656 /* 0x1.669fbcc1415600008 */,
+1.402772691220124823310 /* 0x1.671c1c708328e000a */,
+1.404673055288671035301 /* 0x1.6798a7420988b000d */,
+1.406575993818903302975 /* 0x1.68155d44ca77a000f */,
+1.408481510297352468121 /* 0x1.68923e87bf70e000a */,
+1.410389608216942924956 /* 0x1.690f4b19e8f74000c */,
+1.412300291075172076232 /* 0x1.698c830a4c94c0008 */
+};
+#define S (1.0/4503599627370496.0)  /* 2^-52 */
+static const float exp2_deltatable[512] = {
+ 11527*S,  -963*S,   884*S,  -781*S, -2363*S, -3441*S,   123*S,   526*S,
+    -6*S,  1254*S, -1138*S,  1519*S,  1576*S,   -65*S,  1040*S,   793*S,
+ -1662*S, -5063*S,  -387*S,   968*S,  -941*S,   984*S, -2856*S,  -545*S,
+   495*S, -5246*S, -2109*S,  1281*S,  2075*S,   909*S, -1642*S,-78233*S,
+-31653*S,  -265*S,   130*S,   430*S,  2482*S,  -742*S,  1616*S, -2213*S,
+  -519*S,    20*S, -3134*S,-13981*S,  1343*S, -1740*S,   247*S,  1679*S,
+ -1097*S,  3131*S,   871*S, -1480*S,  1936*S, -1827*S, 17325*S,   528*S,
+  -322*S,  1404*S,  -152*S, -1845*S,  -212*S,  2639*S,  -476*S,  2960*S,
+  -962*S, -1012*S, -1231*S,  3030*S,  1659*S,  -486*S,  2154*S,  1728*S,
+ -2793*S,   699*S, -1560*S, -2125*S,  2156*S,   142*S, -1888*S,  4426*S,
+-13443*S,  1970*S,   -50*S,  1771*S,-43399*S,  4979*S, -2448*S,  -370*S,
+  1414*S,  1075*S,   232*S,   206*S,   873*S,  2141*S,  2970*S,  1279*S,
+ -2331*S,   336*S, -2595*S,   753*S, -3384*S,  -616*S,    89*S,  -818*S,
+  5755*S,  -241*S,  -528*S,  -661*S, -3777*S,  -354*S,   250*S,  3881*S,
+  2632*S, -2131*S,  2565*S,  -316*S,  1746*S, -2541*S, -1324*S,   -50*S,
+  2564*S,  -782*S,  1176*S,  6452*S, -1002*S,  1288*S,   336*S,  -185*S,
+  3063*S,  3784*S,  2169*S,   686*S,   328*S,  -400*S,   312*S, -4517*S,
+ -1457*S,  1046*S, -1530*S,  -685*S,  1328*S,-49815*S,  -895*S,  1063*S,
+ -2091*S,  -672*S, -1710*S,  -665*S,  1545*S,  1819*S,-45265*S,  3548*S,
+  -554*S,  -568*S,  4752*S, -1907*S,-13738*S,   675*S,  9611*S, -1115*S,
+  -815*S,   408*S, -1281*S,  -937*S,-16376*S, -4772*S, -1440*S,   992*S,
+   788*S, 10364*S, -1602*S,  -661*S, -1783*S,  -265*S,   -20*S, -3781*S,
+  -861*S,  -345*S,  -994*S,  1364*S, -5339*S,  1620*S,  9390*S, -1066*S,
+  -305*S,  -170*S,   175*S,  2461*S,  -490*S,  -769*S, -1450*S,  3315*S,
+  2418*S,   -45*S,  -852*S, -1295*S,  -488*S,   -96*S,  1142*S, -2639*S,
+  7905*S, -9306*S, -3859*S,   760*S,  1057*S, -1570*S,  3977*S,   209*S,
+  -514*S,  7151*S,  1646*S,   627*S,   599*S,  -774*S, -1468*S,   633*S,
+  -473*S,   851*S,  2406*S,   143*S,    74*S,  4260*S,  1177*S,  -913*S,
+  2670*S, -3298*S, -1662*S,  -120*S, -3264*S, -2148*S,   410*S,  2078*S,
+ -2098*S,  -926*S,  3580*S, -1289*S,  2450*S, -1158*S,   907*S,  -590*S,
+   986*S,  1801*S,  1145*S, -1677*S,  3455*S,   956*S,   710*S,   144*S,
+   153*S,  -255*S, -1898*S, 28102*S,  2748*S,  1194*S, -3009*S,  7076*S,
+     0*S, -2720*S,   711*S,  1225*S, -3034*S,  -473*S,   378*S, -1046*S,
+   962*S, -2006*S,  4647*S,  3206*S,  1769*S, -2665*S,  1254*S,  2025*S,
+ -2430*S,  6193*S,  1224*S,  -856*S, -1592*S,  -325*S, -1521*S,  1827*S,
+  -264*S,  2403*S, -1065*S,   967*S,  -681*S, -2106*S,  -474*S,  1333*S,
+  -893*S,  2296*S,   592*S, -1220*S,  -326*S,   990*S,   139*S,   206*S,
+  -779*S, -1683*S,  1238*S,  6098*S,   136*S,  1197*S,   790*S,  -107*S,
+ -1004*S, -2449*S,   939*S,  5568*S,   156*S,  1812*S,  2792*S, -1094*S,
+ -2677*S,  -251*S,  2297*S,   943*S, -1329*S,  2883*S,  -853*S, -2626*S,
+-105929*S, -6552*S,  1095*S, -1508*S,  1003*S,  5039*S, -2600*S,  -749*S,
+  1790*S,   890*S,  2016*S, -1073*S,   624*S, -2084*S, -1536*S, -1330*S,
+   358*S,  2444*S,  -179*S,-25759*S,  -243*S,  -552*S,  -124*S,  3766*S,
+  1192*S, -1614*S,     6*S, -1227*S,   345*S,  -981*S,  -295*S, -1006*S,
+  -995*S, -1195*S,   706*S,  2512*S, -1758*S,  -734*S, -6286*S,  -922*S,
+  1530*S,  1542*S,  1223*S,    61*S,   -83*S,   522*S,116937*S,  -914*S,
+  -418*S, -7339*S,   249*S,  -520*S,  -762*S,   426*S,  -505*S,  2664*S,
+ -1093*S, -1035*S,  2130*S,  4878*S,  1982*S,  1551*S,  2304*S,   193*S,
+  1532*S, -7268*S, 24357*S,   531*S,  2676*S, -1170*S,  1465*S, -1917*S,
+  2143*S,  1466*S,    -7*S, -7300*S,  3297*S, -1197*S,  -289*S, -1548*S,
+ 26226*S,  4401*S,  4123*S, -1588*S,  4243*S,  4069*S, -1276*S, -2010*S,
+  1407*S,  1478*S,   488*S, -2366*S, -2909*S, -2534*S, -1285*S,  7095*S,
+  -645*S, -2089*S,  -944*S,   -40*S, -1363*S,  -833*S,   917*S,  1609*S,
+  1286*S,  1677*S,  1613*S, -2295*S, -1248*S,    40*S,    26*S,  2038*S,
+   698*S,  2675*S, -1755*S, -3522*S, -1614*S, -6111*S,   270*S,  1822*S,
+  -234*S, -2844*S, -1201*S,  -830*S,  1193*S,  2354*S,    47*S,  1522*S,
+   -78*S,  -640*S,  2425*S, -1596*S,  1563*S,  1169*S, -1006*S,   -83*S,
+  2362*S, -3521*S,  -314*S,  1814*S, -1751*S,   305*S,  1715*S, -3741*S,
+  7847*S,  1291*S,  1206*S,    36*S,  1397*S, -1419*S, -1194*S, -2014*S,
+  1742*S,  -578*S,  -207*S,   875*S,  1539*S,  2826*S, -1165*S,  -909*S,
+  1849*S,   927*S,  2018*S,  -981*S,  1637*S,  -463*S,   905*S,  6618*S,
+   400*S,   630*S,  2614*S,   900*S,  2323*S, -1094*S, -1858*S,  -212*S,
+ -2069*S,   747*S,  1845*S, -1450*S,   444*S,  -213*S,  -438*S,  1158*S,
+  4738*S,  2497*S,  -370*S, -2016*S,  -518*S, -1160*S, -1510*S,   123*S
+};
+/* Maximum magnitude in above table: 116937 */
+#undef S
diff --git a/sysdeps/libm-ieee754/t_exp2f.h b/sysdeps/libm-ieee754/t_exp2f.h
new file mode 100644
index 0000000000..0f7674cefb
--- /dev/null
+++ b/sysdeps/libm-ieee754/t_exp2f.h
@@ -0,0 +1,301 @@
+/* These values are accurate to 23+9 bits when represented as
+   a float.  */
+static const float exp2_accuratetable[256] = {
+0.70711034541 /* 0x0.b5052f003 */,
+0.70903021104 /* 0x0.b58301004 */,
+0.71092861900 /* 0x0.b5ff6b006 */,
+0.71286851176 /* 0x0.b67e8d006 */,
+0.71481245762 /* 0x0.b6fdf3004 */,
+0.71673321725 /* 0x0.b77bd4001 */,
+0.71868461379 /* 0x0.b7fbb7006 */,
+0.72064983853 /* 0x0.b87c82006 */,
+0.72258073096 /* 0x0.b8fb0d003 */,
+0.72456008199 /* 0x0.b97cc5002 */,
+0.72652846578 /* 0x0.b9fdc5002 */,
+0.72848570353 /* 0x0.ba7e0a004 */,
+0.73046034578 /* 0x0.baff73003 */,
+0.73244112730 /* 0x0.bb8143000 */,
+0.73443359139 /* 0x0.bc03d7002 */,
+0.73646944762 /* 0x0.bc8943000 */,
+0.73839598903 /* 0x0.bd0785006 */,
+0.74041211608 /* 0x0.bd8ba6002 */,
+0.74243509775 /* 0x0.be103a004 */,
+0.74444299943 /* 0x0.be93d1004 */,
+0.74646854405 /* 0x0.bf1890003 */,
+0.74849390993 /* 0x0.bf9d4c006 */,
+0.75051373248 /* 0x0.c021ab003 */,
+0.75252974037 /* 0x0.c0a5ca002 */,
+0.75460278996 /* 0x0.c12da6006 */,
+0.75663453342 /* 0x0.c1b2cd001 */,
+0.75867807874 /* 0x0.c238ba006 */,
+0.76072299481 /* 0x0.c2bebe000 */,
+0.76271909478 /* 0x0.c3418f002 */,
+0.76482868204 /* 0x0.c3cbd0006 */,
+0.76694220311 /* 0x0.c45653004 */,
+0.76902121311 /* 0x0.c4de93003 */,
+0.77110719688 /* 0x0.c56748005 */,
+0.77314376835 /* 0x0.c5ecc0003 */,
+0.77531152970 /* 0x0.c67ad1004 */,
+0.77739948042 /* 0x0.c703a7005 */,
+0.77948719274 /* 0x0.c78c79007 */,
+0.78161448246 /* 0x0.c817e3004 */,
+0.78381162885 /* 0x0.c8a7e1002 */,
+0.78587090971 /* 0x0.c92ed6001 */,
+0.78799921275 /* 0x0.c9ba51001 */,
+0.79011362800 /* 0x0.ca44e3006 */,
+0.79225623615 /* 0x0.cad14e005 */,
+0.79441082487 /* 0x0.cb5e82006 */,
+0.79654645924 /* 0x0.cbea78003 */,
+0.79873132707 /* 0x0.cc79a8001 */,
+0.80093026168 /* 0x0.cd09c4005 */,
+0.80304825308 /* 0x0.cd9492001 */,
+0.80526113516 /* 0x0.ce2598004 */,
+0.80742740634 /* 0x0.ceb390002 */,
+0.80963188410 /* 0x0.cf4409000 */,
+0.81180763254 /* 0x0.cfd2a0006 */,
+0.81401169308 /* 0x0.d06312005 */,
+0.81622666121 /* 0x0.d0f43b000 */,
+0.81843453653 /* 0x0.d184ed005 */,
+0.82070738078 /* 0x0.d219e1001 */,
+0.82289630179 /* 0x0.d2a955003 */,
+0.82509487868 /* 0x0.d3396b000 */,
+0.82737630616 /* 0x0.d3ceef007 */,
+0.82961845408 /* 0x0.d461e0007 */,
+0.83179849386 /* 0x0.d4f0bf000 */,
+0.83408612023 /* 0x0.d586ab007 */,
+0.83636939536 /* 0x0.d61c4e007 */,
+0.83862531186 /* 0x0.d6b026000 */,
+0.84094470740 /* 0x0.d74827000 */,
+0.84316509971 /* 0x0.d7d9ab006 */,
+0.84546715027 /* 0x0.d87089004 */,
+0.84781247378 /* 0x0.d90a3d000 */,
+0.85004067431 /* 0x0.d99c44007 */,
+0.85237431530 /* 0x0.da3534003 */,
+0.85468208790 /* 0x0.dacc72000 */,
+0.85696077349 /* 0x0.db61c8002 */,
+0.85931611062 /* 0x0.dbfc24000 */,
+0.86171466122 /* 0x0.dc9955007 */,
+0.86397939929 /* 0x0.dd2dc1006 */,
+0.86633706098 /* 0x0.ddc844004 */,
+0.86868536481 /* 0x0.de622a006 */,
+0.87101131681 /* 0x0.defa99002 */,
+0.87337517739 /* 0x0.df9584000 */,
+0.87576484682 /* 0x0.e03220001 */,
+0.87814646969 /* 0x0.e0ce35007 */,
+0.88050335648 /* 0x0.e168ab002 */,
+0.88291734457 /* 0x0.e206df000 */,
+0.88522624975 /* 0x0.e29e30004 */,
+0.88768237833 /* 0x0.e33f27003 */,
+0.89007008077 /* 0x0.e3dba2001 */,
+0.89250904327 /* 0x0.e47b79004 */,
+0.89490824949 /* 0x0.e518b5007 */,
+0.89735335113 /* 0x0.e5b8f3001 */,
+0.89977204799 /* 0x0.e65776000 */,
+0.90221023561 /* 0x0.e6f740001 */,
+0.90468037137 /* 0x0.e79922006 */,
+0.90711551909 /* 0x0.e838b9003 */,
+0.90958660844 /* 0x0.e8daab002 */,
+0.91205561170 /* 0x0.e97c7a006 */,
+0.91451990614 /* 0x0.ea1dfa006 */,
+0.91699457179 /* 0x0.eac028007 */,
+0.91948717833 /* 0x0.eb6383000 */,
+0.92201787240 /* 0x0.ec095d004 */,
+0.92446959027 /* 0x0.ecaa0a006 */,
+0.92700457577 /* 0x0.ed502c003 */,
+0.92946064473 /* 0x0.edf122000 */,
+0.93202102187 /* 0x0.ee98ee001 */,
+0.93454003345 /* 0x0.ef3e04007 */,
+0.93707615143 /* 0x0.efe439004 */,
+0.93964391957 /* 0x0.f08c81007 */,
+0.94217014323 /* 0x0.f13210007 */,
+0.94470518835 /* 0x0.f1d833005 */,
+0.94727593667 /* 0x0.f280ad004 */,
+0.94985383753 /* 0x0.f3299f002 */,
+0.95245110992 /* 0x0.f3d3d6002 */,
+0.95500063903 /* 0x0.f47aec004 */,
+0.95758175857 /* 0x0.f52414004 */,
+0.96018302447 /* 0x0.f5ce8e004 */,
+0.96279788024 /* 0x0.f679ec005 */,
+0.96541762355 /* 0x0.f7259c002 */,
+0.96803289660 /* 0x0.f7d101005 */,
+0.97066921004 /* 0x0.f87dc7006 */,
+0.97328519823 /* 0x0.f92938001 */,
+0.97589331867 /* 0x0.f9d425001 */,
+0.97858297827 /* 0x0.fa846a001 */,
+0.98121380814 /* 0x0.fb30d4005 */,
+0.98389244083 /* 0x0.fbe060002 */,
+0.98657202723 /* 0x0.fc8ffc001 */,
+0.98919564488 /* 0x0.fd3bed001 */,
+0.99194401506 /* 0x0.fdf00b002 */,
+0.99460238224 /* 0x0.fe9e43004 */,
+0.99728542574 /* 0x0.ff4e19005 */,
+1.00000000000 /* 0x1.000000000 */,
+1.00271666054 /* 0x1.00b20a003 */,
+1.00544095058 /* 0x1.01649400c */,
+1.00819313547 /* 0x1.0218f200e */,
+1.01089513312 /* 0x1.02ca06007 */,
+1.01363527782 /* 0x1.037d9a005 */,
+1.01635849497 /* 0x1.04301200e */,
+1.01918780808 /* 0x1.04e97e003 */,
+1.02182090297 /* 0x1.05960e00a */,
+1.02468311789 /* 0x1.0651a2002 */,
+1.02744102491 /* 0x1.070660009 */,
+1.03019988541 /* 0x1.07bb2e002 */,
+1.03300857552 /* 0x1.087340005 */,
+1.03580951708 /* 0x1.092ad000b */,
+1.03865504271 /* 0x1.09e54c004 */,
+1.04145348082 /* 0x1.0a9cb2007 */,
+1.04426109801 /* 0x1.0b54b2007 */,
+1.04706287389 /* 0x1.0c0c50003 */,
+1.04996109020 /* 0x1.0cca40007 */,
+1.05282557024 /* 0x1.0d85fa009 */,
+1.05564439314 /* 0x1.0e3eb600c */,
+1.05850863475 /* 0x1.0efa6c00c */,
+1.06137108805 /* 0x1.0fb604001 */,
+1.06423723713 /* 0x1.1071da00a */,
+1.06716394429 /* 0x1.1131a8003 */,
+1.07004547127 /* 0x1.11ee80005 */,
+1.07294559497 /* 0x1.12ac9000c */,
+1.07586789139 /* 0x1.136c14005 */,
+1.07873940478 /* 0x1.142844007 */,
+1.08172726651 /* 0x1.14ec1400e */,
+1.08459246171 /* 0x1.15a7da008 */,
+1.08752059939 /* 0x1.1667c0001 */,
+1.09050178536 /* 0x1.172b20005 */,
+1.09349620361 /* 0x1.17ef5e00d */,
+1.09634935875 /* 0x1.18aa5a00d */,
+1.09940552720 /* 0x1.1972a4006 */,
+1.10237383858 /* 0x1.1a352c00a */,
+1.10530221471 /* 0x1.1af516006 */,
+1.10838031771 /* 0x1.1bbed0001 */,
+1.11137616648 /* 0x1.1c8326009 */,
+1.11441528816 /* 0x1.1d4a5200d */,
+1.11741960066 /* 0x1.1e0f3600c */,
+1.12044525152 /* 0x1.1ed580003 */,
+1.12346303485 /* 0x1.1f9b4600f */,
+1.12655401230 /* 0x1.2065d8000 */,
+1.12955987463 /* 0x1.212ad6007 */,
+1.13263440148 /* 0x1.21f45400b */,
+1.13567769541 /* 0x1.22bbc6009 */,
+1.13877141483 /* 0x1.238686005 */,
+1.14189016826 /* 0x1.2452ea004 */,
+1.14495265504 /* 0x1.251b9e00e */,
+1.14807951452 /* 0x1.25e88a001 */,
+1.15118837366 /* 0x1.26b448006 */,
+1.15428590795 /* 0x1.277f4800e */,
+1.15744590761 /* 0x1.284e60001 */,
+1.16055941596 /* 0x1.291a6c00a */,
+1.16371822369 /* 0x1.29e970008 */,
+1.16683173193 /* 0x1.2ab57c009 */,
+1.17002511035 /* 0x1.2b86c4007 */,
+1.17321026344 /* 0x1.2c578200d */,
+1.17639815811 /* 0x1.2d286e002 */,
+1.17961537856 /* 0x1.2dfb4600c */,
+1.18278920671 /* 0x1.2ecb4600e */,
+1.18602204342 /* 0x1.2f9f2400d */,
+1.18924140952 /* 0x1.30722000f */,
+1.19246912021 /* 0x1.3145a800c */,
+1.19566547881 /* 0x1.321722007 */,
+1.19890022298 /* 0x1.32eb2000e */,
+1.20205938816 /* 0x1.33ba2a000 */,
+1.20533752458 /* 0x1.34910000b */,
+1.20865476136 /* 0x1.356a66003 */,
+1.21195018302 /* 0x1.36425e007 */,
+1.21525228034 /* 0x1.371ac6007 */,
+1.21851313125 /* 0x1.37f07a007 */,
+1.22183310988 /* 0x1.38ca0e001 */,
+1.22516608253 /* 0x1.39a47c00a */,
+1.22848713419 /* 0x1.3a7e2200f */,
+1.23174583912 /* 0x1.3b53b2000 */,
+1.23522067082 /* 0x1.3c376c008 */,
+1.23849928397 /* 0x1.3d0e4a00c */,
+1.24181902431 /* 0x1.3de7da00f */,
+1.24523758889 /* 0x1.3ec7e4001 */,
+1.24859035038 /* 0x1.3fa39e00f */,
+1.25193393249 /* 0x1.407ebe00d */,
+1.25539278994 /* 0x1.41616c007 */,
+1.25880420214 /* 0x1.4240fe004 */,
+1.26223969480 /* 0x1.43222400e */,
+1.26558542253 /* 0x1.43fd68001 */,
+1.26904225354 /* 0x1.44dff4003 */,
+1.27251851576 /* 0x1.45c3c600c */,
+1.27593302748 /* 0x1.46a38c00f */,
+1.27941727649 /* 0x1.4787e4007 */,
+1.28286683578 /* 0x1.4869f600d */,
+1.28636789342 /* 0x1.494f6800e */,
+1.28982734693 /* 0x1.4a3220009 */,
+1.29335498813 /* 0x1.4b1950002 */,
+1.29684555547 /* 0x1.4bfe1200b */,
+1.30039131655 /* 0x1.4ce672009 */,
+1.30388665216 /* 0x1.4dcb8400b */,
+1.30738770972 /* 0x1.4eb0f6007 */,
+1.31095492852 /* 0x1.4f9abe008 */,
+1.31452167056 /* 0x1.50847e00f */,
+1.31807971017 /* 0x1.516dac00b */,
+1.32168746004 /* 0x1.525a1c006 */,
+1.32518649117 /* 0x1.533f6c00b */,
+1.32884454737 /* 0x1.542f28007 */,
+1.33244597914 /* 0x1.551b2e002 */,
+1.33601069461 /* 0x1.5604cc007 */,
+1.33969032765 /* 0x1.56f5f2000 */,
+1.34328985233 /* 0x1.57e1d800d */,
+1.34692609319 /* 0x1.58d026006 */,
+1.35055744648 /* 0x1.59be22000 */,
+1.35424625891 /* 0x1.5aafe200c */,
+1.35795569436 /* 0x1.5ba2fc00b */,
+1.36158764384 /* 0x1.5c910200e */,
+1.36525344864 /* 0x1.5d814000a */,
+1.36908590815 /* 0x1.5e7c6a00e */,
+1.37272357954 /* 0x1.5f6ad0009 */,
+1.37639832498 /* 0x1.605ba4001 */,
+1.38020527377 /* 0x1.615522009 */,
+1.38388323800 /* 0x1.62462c00b */,
+1.38770687583 /* 0x1.6340c2002 */,
+1.39144265656 /* 0x1.643596003 */,
+1.39518976211 /* 0x1.652b28000 */,
+1.39905631551 /* 0x1.66288e006 */,
+1.40280294419 /* 0x1.671e18000 */,
+1.40661609194 /* 0x1.6817fe00e */,
+1.41035604489 /* 0x1.690d18008 */
+};
+#define S (1.0/8388608.0)  /* 2^-23 */
+static const float exp2_deltatable[256] = {
+    61*S,   107*S,  -301*S,   -91*S,    98*S,  -194*S,   -57*S,   223*S,
+  -162*S,   176*S,   241*S,    32*S,    24*S,    29*S,   138*S,   871*S,
+  -280*S,   -49*S,   204*S,   122*S,   238*S,   262*S,   108*S,  -195*S,
+   330*S,   103*S,   -23*S,  -215*S, -1269*S,  -610*S,    19*S,    13*S,
+    28*S,  -819*S,   298*S,    78*S,  -233*S,   -18*S,  1186*S,   172*S,
+   135*S,  -203*S,  -197*S,   -97*S,  -374*S,     8*S,   512*S,  -295*S,
+   240*S,   -15*S,   214*S,   -75*S,   -30*S,    88*S,    12*S,   806*S,
+   273*S,  -204*S,   445*S,   429*S,  -579*S,  -109*S,   207*S,    38*S,
+   695*S,  -161*S,    68*S,   825*S,  -178*S,   233*S,   187*S,  -358*S,
+    91*S,  1056*S,    53*S,   265*S,   257*S,  -150*S,  -118*S,   182*S,
+   281*S,   -49*S,   317*S,  -844*S,   -80*S,  -339*S,    10*S,  -269*S,
+   -16*S,  -208*S,  -226*S,    95*S,  -141*S,    14*S,    52*S,   -61*S,
+  -125*S,   -41*S,   454*S,  -176*S,   196*S,  -550*S,   -26*S,  -129*S,
+   -99*S,   250*S,   -25*S,  -274*S,  -154*S,   -32*S,   247*S,  -169*S,
+  -272*S,  -209*S,   -64*S,    53*S,    25*S,   171*S,   -25*S,  -406*S,
+   135*S,  -141*S,    84*S,   231*S,  -396*S,   414*S,    36*S,  -129*S,
+     0*S,    65*S,   133*S,   447*S,    70*S,    62*S,  -236*S,   639*S,
+  -903*S,   181*S,   -58*S,  -373*S,  -191*S,  -189*S,   244*S,    39*S,
+  -147*S,  -488*S,   196*S,   400*S,    -9*S,    15*S,   -70*S,  -201*S,
+   267*S,   133*S,   121*S,   270*S,  -240*S,   466*S,  -289*S,  -428*S,
+   -66*S,   352*S,  -880*S,    41*S,   -96*S,  -758*S,   130*S,    29*S,
+   310*S,   124*S,    81*S,  -135*S,   348*S,  -172*S,   -44*S,  -338*S,
+  -183*S,   148*S,  -206*S,    32*S,    -9*S,  -257*S,    61*S,  -196*S,
+   -69*S,  -501*S,  -193*S,   -60*S,    12*S,   296*S,    46*S,   311*S,
+   349*S,   383*S,    11*S,   -60*S,  -980*S,  -789*S,  -296*S,  -112*S,
+    49*S,  -289*S,  -128*S,    72*S,    65*S,  -643*S,   682*S,    -6*S,
+  -378*S,   124*S,  -103*S,  -506*S,   116*S,   190*S,   406*S,  -326*S,
+   -83*S,   255*S,   -83*S,   152*S,   -30*S,   185*S,   -80*S,   206*S,
+    56*S,   332*S,    50*S,  -266*S,   -58*S,    56*S,     1*S,   313*S,
+  -458*S,   135*S,   122*S,  -312*S,   206*S,   -89*S,  -141*S,  -325*S,
+   -83*S,   253*S,  -190*S,  -419*S,   738*S,    83*S,  -331*S,   328*S,
+  -233*S,   391*S,   159*S,   -62*S,   663*S,   261*S,   345*S,  -288*S
+};
+/* Maximum magnitude in above table: 1269 */
+#undef S
+#define EXP2_TSIZE 8
+#define EXP2_TTOL 9
+#define EXP2_FSIZE 23
+#define EXP2_FNAME float
diff --git a/sysdeps/libm-ieee754/w_exp2.c b/sysdeps/libm-ieee754/w_exp2.c
new file mode 100644
index 0000000000..126aa090bc
--- /dev/null
+++ b/sysdeps/libm-ieee754/w_exp2.c
@@ -0,0 +1,36 @@
+/*
+ * wrapper exp2(x)
+ */
+
+#include <float.h>
+#include "math.h"
+#include "math_private.h"
+
+static const double o_threshold= (double) DBL_MAX_EXP;
+static const double u_threshold= (double) DBL_MIN_EXP;
+
+double
+__exp2 (double x)		/* wrapper exp2 */
+{
+#ifdef _IEEE_LIBM
+  return __ieee754_exp2 (x);
+#else
+  double z;
+  z = __ieee754_exp2 (x);
+  if (_LIB_VERSION != _IEEE_ && __finite (x))
+    {
+      if (x > o_threshold)
+	/* exp2 overflow */
+	return __kernel_standard (x, x, 44);
+      else if (x < u_threshold)
+	/* exp2 underflow */
+	return __kernel_standard (x, x, 45);
+    }
+  return z;
+#endif
+}
+weak_alias (__exp2, exp2)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__exp2, __expl2)
+weak_alias (__exp2, expl2)
+#endif
diff --git a/sysdeps/libm-ieee754/w_exp2f.c b/sysdeps/libm-ieee754/w_exp2f.c
new file mode 100644
index 0000000000..d2c340db3f
--- /dev/null
+++ b/sysdeps/libm-ieee754/w_exp2f.c
@@ -0,0 +1,32 @@
+/*
+ * wrapper exp2f(x)
+ */
+
+#include <float.h>
+#include "math.h"
+#include "math_private.h"
+
+static const float o_threshold= (float) FLT_MAX_EXP;
+static const float u_threshold= (float) FLT_MIN_EXP;
+
+float
+__exp2f (float x)		/* wrapper exp2f */
+{
+#ifdef _IEEE_LIBM
+  return __ieee754_exp2f (x);
+#else
+  float z;
+  z = __ieee754_exp2f (x);
+  if (_LIB_VERSION != _IEEE_ && __finitef (x))
+    {
+      if (x > o_threshold)
+	/* exp2 overflow */
+	return (float) __kernel_standard ((double) x, (double) x, 144);
+      else if (x < u_threshold)
+	/* exp2 underflow */
+	return (float) __kernel_standard ((double) x, (double) x, 145);
+    }
+  return z;
+#endif
+}
+weak_alias (__exp2f, exp2f)
diff --git a/sysdeps/libm-ieee754/w_exp2l.c b/sysdeps/libm-ieee754/w_exp2l.c
new file mode 100644
index 0000000000..965e9bf3e4
--- /dev/null
+++ b/sysdeps/libm-ieee754/w_exp2l.c
@@ -0,0 +1,30 @@
+/*
+ * wrapper exp2l(x)
+ */
+
+#include <float.h>
+#include "math.h"
+#include "math_private.h"
+
+static const long double o_threshold = (long double) LDBL_MAX_EXP;
+static const long double u_threshold = (long double) LDBL_MIN_EXP;
+
+long double
+__exp2l (long double x)			/* wrapper exp2l */
+{
+#ifdef _IEEE_LIBM
+  return __ieee754_exp2l (x);
+#else
+  long double z;
+  z = __ieee754_exp2l (x);
+  if (_LIB_VERSION != _IEEE_ && __finitel (x))
+    {
+      if (x > o_threshold)
+	return __kernel_standard (x, x, 244); /* exp2l overflow */
+      else if (x < u_threshold)
+	return __kernel_standard (x, x, 245); /* exp2l underflow */
+    }
+  return z;
+#endif
+}
+weak_alias (__exp2l, exp2l)