* math/divtc3.c: New file.

	* math/multc3.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
	[$(subdir) = math] (libm-routines): Add multc3, divtc3.

	* sysdeps/unix/sysv/linux/sparc/sparc32/fpu/Implies: New file.
	* sysdeps/sparc/sparc32/fpu/s_fabsl.c: Include math.h and
	math_ldbl_opt.h.
	(fabsl): Use long_double_symbol instead of weak_alias.
	* sysdeps/sparc/sparc32/fpu/s_fabs.c: Include math.h and
	math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (fabsl): Add compat_symbol.

2006-01-31  Martin Schwidefsky	<schwidefsky@de.ibm.com>
	    Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/unix/sysv/linux/s390/Implies: New file.
	* sysdeps/unix/sysv/linux/s390/fpu/Implies: New file.
	* sysdeps/unix/sysv/linux/s390/nldbl-abi.h: New file.
	* sysdeps/s390/fpu/bits/mathinline.h (signbitl, sqrtl): New inlines.
	* sysdeps/s390/bits/mathdef.h: New file.
	* sysdeps/s390/fpu/e_sqrtl.c: New file.
	* sysdeps/s390/s390-32/bits/wordsize.h (__LONG_DOUBLE_MATH_OPTIONAL,
	__NO_LONG_DOUBLE_MATH): Define.
	* sysdeps/s390/s390-64/bits/wordsize.h: Likewise.
	* sysdeps/s390/Implies: Add ieee754/ldbl-128.
	* sysdeps/s390/ldbl2mpn.c: File removed.
	* sysdeps/s390/fpu/libm-test-ulps: Updated.

2006-01-31  Roland McGrath  <roland@redhat.com>

	* sysdeps/alpha/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/alpha/bits/mathdef.h: ... here.
	* sysdeps/i386/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/i386/bits/mathdef.h: ... here.
	* sysdeps/mips/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/mips/bits/mathdef.h: ... here.
	* sysdeps/m68k/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/m68k/bits/mathdef.h: ... here.
	* sysdeps/powerpc/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/powerpc/bits/mathdef.h: ... here.
	* sysdeps/sparc/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/sparc/bits/mathdef.h: ... here.
	* sysdeps/ia64/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/ia64/bits/mathdef.h: ... here.
	* sysdeps/sh/sh4/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/sh/sh4/bits/mathdef.h: ... here.
	* sysdeps/x86_64/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/x86_64/bits/mathdef.h: ... here.

2006-01-31  Jakub Jelinek  <jakub@redhat.com>

24 files changed, 627 insertions, 102 deletions

diff --git a/sysdeps/alpha/fpu/bits/mathdef.h b/sysdeps/alpha/bits/mathdef.h
index d5f2d5a843..d5f2d5a843 100644
--- a/sysdeps/alpha/fpu/bits/mathdef.h
+++ b/sysdeps/alpha/bits/mathdef.h
diff --git a/sysdeps/i386/fpu/bits/mathdef.h b/sysdeps/i386/bits/mathdef.h
index ec42ed5df9..ec42ed5df9 100644
--- a/sysdeps/i386/fpu/bits/mathdef.h
+++ b/sysdeps/i386/bits/mathdef.h
diff --git a/sysdeps/ia64/fpu/bits/mathdef.h b/sysdeps/ia64/bits/mathdef.h
index 3dc2860223..3dc2860223 100644
--- a/sysdeps/ia64/fpu/bits/mathdef.h
+++ b/sysdeps/ia64/bits/mathdef.h
diff --git a/sysdeps/m68k/fpu/bits/mathdef.h b/sysdeps/m68k/bits/mathdef.h
index 65cf8d49f6..65cf8d49f6 100644
--- a/sysdeps/m68k/fpu/bits/mathdef.h
+++ b/sysdeps/m68k/bits/mathdef.h
diff --git a/sysdeps/mips/fpu/bits/mathdef.h b/sysdeps/mips/bits/mathdef.h
index 99be0db2b5..99be0db2b5 100644
--- a/sysdeps/mips/fpu/bits/mathdef.h
+++ b/sysdeps/mips/bits/mathdef.h
diff --git a/sysdeps/powerpc/fpu/bits/mathdef.h b/sysdeps/powerpc/bits/mathdef.h
index b79cc6ff96..b79cc6ff96 100644
--- a/sysdeps/powerpc/fpu/bits/mathdef.h
+++ b/sysdeps/powerpc/bits/mathdef.h
diff --git a/sysdeps/s390/Implies b/sysdeps/s390/Implies
index 5b29b26128..1945b1f4bb 100644
--- a/sysdeps/s390/Implies
+++ b/sysdeps/s390/Implies
@@ -1,2 +1,3 @@
+ieee754/ldbl-128
 ieee754/dbl-64
 ieee754/flt-32
diff --git a/sysdeps/s390/bits/mathdef.h b/sysdeps/s390/bits/mathdef.h
new file mode 100644
index 0000000000..4dcb612c33
--- /dev/null
+++ b/sysdeps/s390/bits/mathdef.h
@@ -0,0 +1,38 @@
+/* Copyright (C) 1997, 1998, 1999, 2000, 2004, 2006
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#if !defined _MATH_H && !defined _COMPLEX_H
+# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
+#endif
+
+#if defined  __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
+# define _MATH_H_MATHDEF	1
+
+/* Normally, there is no long double type and the `float' and `double'
+   expressions are evaluated as `double'.  */
+typedef double float_t;		/* `float' expressions are evaluated as
+				   `double'.  */
+typedef double double_t;	/* `double' expressions are evaluated as
+				   `double'.  */
+
+/* The values returned by `ilogb' for 0 and NaN respectively.  */
+# define FP_ILOGB0	(-2147483647)
+# define FP_ILOGBNAN	2147483647
+
+#endif	/* ISO C99 */
diff --git a/sysdeps/s390/fpu/bits/mathinline.h b/sysdeps/s390/fpu/bits/mathinline.h
index 381f2e0bcb..5c6b83ad06 100644
--- a/sysdeps/s390/fpu/bits/mathinline.h
+++ b/sysdeps/s390/fpu/bits/mathinline.h
@@ -47,6 +47,21 @@ __NTH (__signbit (double __x))
   return __u.__i < 0;
 }
 
+# ifndef __NO_LONG_DOUBLE_MATH
+__MATH_INLINE int
+__NTH (__signbitl (long double __x))
+{
+  __extension__ union { long double __l; int __i[4]; } __u = { __l: __x };
+  return __u.__i[0] < 0;
+}
+# else
+__MATH_INLINE int
+__NTH (__signbitl (long double __x))
+{
+  return __signbit ((double) __x);
+}
+# endif
+
 #endif /* C99 */
 
 /* This code is used internally in the GNU libc.  */
@@ -70,6 +85,17 @@ __NTH (__ieee754_sqrtf (float x))
   return res;
 }
 
+# if !defined __NO_LONG_DOUBLE_MATH
+__MATH_INLINE long double
+__NTH (sqrtl (long double __x))
+{
+  long double res;
+
+  asm ( "sqxbr %0,%1" : "=f" (res) : "f" (__x) );
+  return res;
+}
+# endif /* !__NO_LONG_DOUBLE_MATH */
+
 #endif /* __LIBC_INTERNAL_MATH_INLINES */
 
 #endif /* __NO_MATH_INLINES */
diff --git a/sysdeps/s390/fpu/e_sqrtl.c b/sysdeps/s390/fpu/e_sqrtl.c
new file mode 100644
index 0000000000..e1daac1974
--- /dev/null
+++ b/sysdeps/s390/fpu/e_sqrtl.c
@@ -0,0 +1,30 @@
+/* Square root.  S/390 FPU version.
+   Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <math_private.h>
+
+long double
+__ieee754_sqrtl (long double x)
+{
+  long double res;
+
+  asm ( "sqxbr %0,%1" : "=f" (res) : "f" (x) );
+  return res;
+}
diff --git a/sysdeps/s390/fpu/libm-test-ulps b/sysdeps/s390/fpu/libm-test-ulps
index 06b022a47b..a84b71f54a 100644
--- a/sysdeps/s390/fpu/libm-test-ulps
+++ b/sysdeps/s390/fpu/libm-test-ulps
@@ -1,21 +1,35 @@
 # Begin of automatic generation
 
 # atan2
+Test "atan2 (-0.00756827042671106339, -.001792735857538728036) == -1.80338464113663849327153994379639112":
+ildouble: 1
+ldouble: 1
 Test "atan2 (-0.75, -1.0) == -2.49809154479650885165983415456218025":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "atan2 (0.75, -1.0) == 2.49809154479650885165983415456218025":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "atan2 (1.390625, 0.9296875) == 0.981498387184244311516296577615519772":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 # atanh
 Test "atanh (0.75) == 0.972955074527656652552676371721589865":
 float: 1
 ifloat: 1
 
+# cacos
+Test "Imaginary part of: cacos (0.75 + 1.25 i) == 1.11752014915610270578240049553777969 - 1.13239363160530819522266333696834467 i":
+ildouble: 1
+ldouble: 1
+
 # cacosh
 Test "Real part of: cacosh (-2 - 3 i) == 1.9833870299165354323470769028940395 - 2.1414491111159960199416055713254211 i":
 double: 1
@@ -27,6 +41,8 @@ double: 1
 float: 3
 idouble: 1
 ifloat: 3
+ildouble: 1
+ldouble: 1
 
 # casin
 Test "Real part of: casin (0.75 + 1.25 i) == 0.453276177638793913448921196101971749 + 1.13239363160530819522266333696834467 i":
@@ -34,6 +50,9 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
+Test "Imaginary part of: casin (0.75 + 1.25 i) == 0.453276177638793913448921196101971749 + 1.13239363160530819522266333696834467 i":
+ildouble: 1
+ldouble: 1
 
 # casinh
 Test "Real part of: casinh (-2 - 3 i) == -1.9686379257930962917886650952454982 - 0.96465850440760279204541105949953237 i":
@@ -41,19 +60,27 @@ double: 5
 float: 1
 idouble: 5
 ifloat: 1
+ildouble: 4
+ldouble: 4
 Test "Imaginary part of: casinh (-2 - 3 i) == -1.9686379257930962917886650952454982 - 0.96465850440760279204541105949953237 i":
 double: 3
 float: 6
 idouble: 3
 ifloat: 6
+ildouble: 2
+ldouble: 2
 Test "Real part of: casinh (0.75 + 1.25 i) == 1.03171853444778027336364058631006594 + 0.911738290968487636358489564316731207 i":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "Imaginary part of: casinh (0.75 + 1.25 i) == 1.03171853444778027336364058631006594 + 0.911738290968487636358489564316731207 i":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 # catan
 Test "Real part of: catan (-2 - 3 i) == -1.4099210495965755225306193844604208 - 0.22907268296853876629588180294200276 i":
@@ -67,6 +94,9 @@ ifloat: 1
 Test "Real part of: catan (0.75 + 1.25 i) == 1.10714871779409050301706546017853704 + 0.549306144334054845697622618461262852 i":
 float: 4
 ifloat: 4
+Test "Imaginary part of: catan (0.75 + 1.25 i) == 1.10714871779409050301706546017853704 + 0.549306144334054845697622618461262852 i":
+ildouble: 1
+ldouble: 1
 
 # catanh
 Test "Real part of: catanh (-2 - 3 i) == -0.14694666622552975204743278515471595 - 1.3389725222944935611241935759091443 i":
@@ -78,11 +108,18 @@ ifloat: 4
 Test "Real part of: catanh (0.75 + 1.25 i) == 0.261492138795671927078652057366532140 + 0.996825126463918666098902241310446708 i":
 double: 1
 idouble: 1
+ildouble: 1
+ldouble: 1
 Test "Imaginary part of: catanh (0.75 + 1.25 i) == 0.261492138795671927078652057366532140 + 0.996825126463918666098902241310446708 i":
 float: 6
 ifloat: 6
+ildouble: 1
+ldouble: 1
 
 # cbrt
+Test "cbrt (-0.001) == -0.1":
+ildouble: 1
+ldouble: 1
 Test "cbrt (-27.0) == -3.0":
 double: 1
 idouble: 1
@@ -94,9 +131,14 @@ double: 1
 idouble: 1
 
 # ccos
+Test "Real part of: ccos (-2 - 3 i) == -4.18962569096880723013255501961597373 - 9.10922789375533659797919726277886212 i":
+ildouble: 1
+ldouble: 1
 Test "Imaginary part of: ccos (-2 - 3 i) == -4.18962569096880723013255501961597373 - 9.10922789375533659797919726277886212 i":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "Real part of: ccos (0.75 + 1.25 i) == 1.38173873063425888530729933139078645 - 1.09193013555397466170919531722024128 i":
 double: 1
 float: 1
@@ -110,9 +152,13 @@ ifloat: 1
 Test "Real part of: ccosh (-2 - 3 i) == -3.72454550491532256547397070325597253 + 0.511822569987384608834463849801875634 i":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "Imaginary part of: ccosh (-2 - 3 i) == -3.72454550491532256547397070325597253 + 0.511822569987384608834463849801875634 i":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "Real part of: ccosh (0.75 + 1.25 i) == 0.408242591877968807788852146397499084 + 0.780365930845853240391326216300863152 i":
 double: 1
 float: 1
@@ -123,12 +169,20 @@ float: 1
 ifloat: 1
 
 # cexp
+Test "Real part of: cexp (-2.0 - 3.0 i) == -0.13398091492954261346140525546115575 - 0.019098516261135196432576240858800925 i":
+ildouble: 1
+ldouble: 1
 Test "Imaginary part of: cexp (-2.0 - 3.0 i) == -0.13398091492954261346140525546115575 - 0.019098516261135196432576240858800925 i":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "Real part of: cexp (0.75 + 1.25 i) == 0.667537446429131586942201977015932112 + 2.00900045494094876258347228145863909 i":
 float: 1
 ifloat: 1
+Test "Imaginary part of: cexp (0.75 + 1.25 i) == 0.667537446429131586942201977015932112 + 2.00900045494094876258347228145863909 i":
+ildouble: 1
+ldouble: 1
 
 # clog
 Test "Imaginary part of: clog (-2 - 3 i) == 1.2824746787307683680267437207826593 - 2.1587989303424641704769327722648368 i":
@@ -137,57 +191,98 @@ ifloat: 3
 Test "Real part of: clog (0.75 + 1.25 i) == 0.376885901188190075998919126749298416 + 1.03037682652431246378774332703115153 i":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 # clog10
 Test "Imaginary part of: clog10 (-0 + inf i) == inf + pi/2*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
 Test "Imaginary part of: clog10 (-0 - inf i) == inf - pi/2*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
+Test "Real part of: clog10 (-2 - 3 i) == 0.556971676153418384603252578971164214 - 0.937554462986374708541507952140189646 i":
+ildouble: 1
+ldouble: 1
 Test "Imaginary part of: clog10 (-2 - 3 i) == 0.556971676153418384603252578971164214 - 0.937554462986374708541507952140189646 i":
 double: 1
 float: 5
 idouble: 1
 ifloat: 5
+ildouble: 1
+ldouble: 1
 Test "Imaginary part of: clog10 (-3 + inf i) == inf + pi/2*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
 Test "Imaginary part of: clog10 (-3 - inf i) == inf - pi/2*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
 Test "Imaginary part of: clog10 (-inf + 0 i) == inf + pi*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
 Test "Imaginary part of: clog10 (-inf + 1 i) == inf + pi*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
+Test "Imaginary part of: clog10 (-inf + inf i) == inf + 3/4 pi*log10(e) i":
+double: 1
+idouble: 1
 Test "Imaginary part of: clog10 (-inf - 0 i) == inf - pi*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
 Test "Imaginary part of: clog10 (-inf - 1 i) == inf - pi*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
 Test "Imaginary part of: clog10 (0 + inf i) == inf + pi/2*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
 Test "Imaginary part of: clog10 (0 - inf i) == inf - pi/2*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
 Test "Real part of: clog10 (0.75 + 1.25 i) == 0.163679467193165171449476605077428975 + 0.447486970040493067069984724340855636 i":
 float: 1
 ifloat: 1
+Test "Imaginary part of: clog10 (0.75 + 1.25 i) == 0.163679467193165171449476605077428975 + 0.447486970040493067069984724340855636 i":
+ildouble: 1
+ldouble: 1
 Test "Imaginary part of: clog10 (3 + inf i) == inf + pi/2*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
 Test "Imaginary part of: clog10 (3 - inf i) == inf - pi/2*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
 Test "Imaginary part of: clog10 (inf + inf i) == inf + pi/4*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
 Test "Imaginary part of: clog10 (inf - inf i) == inf - pi/4*log10(e) i":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
 
 # cos
@@ -196,11 +291,15 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "cos (M_PI_6l * 4.0) == -0.5":
 double: 2
 float: 1
 idouble: 2
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "cos (pi/2) == 0":
 double: 1
 float: 1
@@ -219,16 +318,31 @@ double: 1
 float: 4
 idouble: 1
 ifloat: 4
+ildouble: 4
+ldouble: 4
+Test "Real part of: cpow (0.75 + 1.25 i, 1.0 + 0.0 i) == 0.75 + 1.25 i":
+ildouble: 2
+ldouble: 2
+Test "Imaginary part of: cpow (0.75 + 1.25 i, 1.0 + 0.0 i) == 0.75 + 1.25 i":
+ildouble: 1
+ldouble: 1
 Test "Real part of: cpow (0.75 + 1.25 i, 1.0 + 1.0 i) == 0.0846958290317209430433805274189191353 + 0.513285749182902449043287190519090481 i":
 double: 2
 float: 3
 idouble: 2
 ifloat: 3
+ildouble: 10
+ldouble: 10
+Test "Real part of: cpow (2 + 0 i, 10 + 0 i) == 1024.0 + 0.0 i":
+ildouble: 2
+ldouble: 2
 Test "Real part of: cpow (2 + 3 i, 4 + 0 i) == -119.0 - 120.0 i":
 double: 1
 float: 4
 idouble: 1
 ifloat: 4
+ildouble: 3
+ldouble: 3
 Test "Imaginary part of: cpow (2 + 3 i, 4 + 0 i) == -119.0 - 120.0 i":
 float: 2
 ifloat: 2
@@ -237,8 +351,21 @@ double: 2
 float: 2
 idouble: 2
 ifloat: 2
+ildouble: 1
+ldouble: 1
+
+# csin
+Test "Imaginary part of: csin (-2 - 3 i) == -9.15449914691142957346729954460983256 + 4.16890695996656435075481305885375484 i":
+ildouble: 1
+ldouble: 1
+Test "Real part of: csin (0.75 + 1.25 i) == 1.28722291002649188575873510790565441 + 1.17210635989270256101081285116138863 i":
+ildouble: 1
+ldouble: 1
 
 # csinh
+Test "Real part of: csinh (-2 - 3 i) == 3.59056458998577995201256544779481679 - 0.530921086248519805267040090660676560 i":
+ildouble: 1
+ldouble: 1
 Test "Imaginary part of: csinh (-2 - 3 i) == 3.59056458998577995201256544779481679 - 0.530921086248519805267040090660676560 i":
 double: 1
 idouble: 1
@@ -253,17 +380,31 @@ ifloat: 1
 Test "Real part of: csqrt (-2 + 3 i) == 0.89597747612983812471573375529004348 + 1.6741492280355400404480393008490519 i":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "Real part of: csqrt (-2 - 3 i) == 0.89597747612983812471573375529004348 - 1.6741492280355400404480393008490519 i":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: csqrt (0.75 + 1.25 i) == 1.05065169626078392338656675760808326 + 0.594868882070379067881984030639932657 i":
+ildouble: 1
+ldouble: 1
 
 # ctan
 Test "Real part of: ctan (-2 - 3 i) == 0.376402564150424829275122113032269084e-2 - 1.00323862735360980144635859782192726 i":
 double: 1
 idouble: 1
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: ctan (-2 - 3 i) == 0.376402564150424829275122113032269084e-2 - 1.00323862735360980144635859782192726 i":
+ildouble: 1
+ldouble: 1
 Test "Imaginary part of: ctan (0.75 + 1.25 i) == 0.160807785916206426725166058173438663 + 0.975363285031235646193581759755216379 i":
 double: 1
 idouble: 1
+ildouble: 2
+ldouble: 2
 
 # ctanh
 Test "Real part of: ctanh (-2 - 3 i) == -0.965385879022133124278480269394560686 + 0.988437503832249372031403430350121098e-2 i":
@@ -271,6 +412,11 @@ double: 1
 float: 2
 idouble: 1
 ifloat: 2
+ildouble: 1
+ldouble: 1
+Test "Imaginary part of: ctanh (-2 - 3 i) == -0.965385879022133124278480269394560686 + 0.988437503832249372031403430350121098e-2 i":
+ildouble: 1
+ldouble: 1
 Test "Imaginary part of: ctanh (0 + pi/4 i) == 0.0 + 1.0 i":
 float: 1
 ifloat: 1
@@ -290,6 +436,9 @@ ifloat: 1
 Test "erfc (2.0) == 0.00467773498104726583793074363274707139":
 double: 1
 idouble: 1
+Test "erfc (27.0) == 0.523704892378925568501606768284954709e-318":
+ildouble: 1
+ldouble: 1
 Test "erfc (4.125) == 0.542340079956506600531223408575531062e-8":
 double: 1
 idouble: 1
@@ -310,14 +459,30 @@ double: 6
 float: 2
 idouble: 6
 ifloat: 2
+ildouble: 1
+ldouble: 1
+
+# exp2
+Test "exp2 (10) == 1024":
+ildouble: 2
+ldouble: 2
 
 # expm1
 Test "expm1 (0.75) == 1.11700001661267466854536981983709561":
 double: 1
 idouble: 1
 Test "expm1 (1) == M_El - 1.0":
+double: 1
 float: 1
+idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
+
+# gamma
+Test "gamma (-0.5) == log(2*sqrt(pi))":
+ildouble: 1
+ldouble: 1
 
 # hypot
 Test "hypot (-0.7, -12.4) == 12.419742348374220601176836866763271":
@@ -359,9 +524,13 @@ double: 2
 float: 1
 idouble: 2
 ifloat: 1
+ildouble: 2
+ldouble: 2
 Test "j0 (2.0) == 0.223890779141235668051827454649948626":
 float: 2
 ifloat: 2
+ildouble: 2
+ldouble: 2
 Test "j0 (4.0) == -3.9714980986384737228659076845169804197562E-1":
 double: 1
 float: 1
@@ -370,17 +539,32 @@ ifloat: 1
 Test "j0 (8.0) == 0.171650807137553906090869407851972001":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 # j1
+Test "j1 (-1.0) == -0.440050585744933515959682203718914913":
+ildouble: 1
+ldouble: 1
+Test "j1 (0.75) == 0.349243602174862192523281016426251335":
+ildouble: 1
+ldouble: 1
+Test "j1 (1.0) == 0.440050585744933515959682203718914913":
+ildouble: 1
+ldouble: 1
 Test "j1 (10.0) == 0.0434727461688614366697487680258592883":
 float: 2
 ifloat: 2
+ildouble: 2
+ldouble: 2
 Test "j1 (2.0) == 0.576724807756873387202448242269137087":
 double: 1
 idouble: 1
 Test "j1 (8.0) == 0.234636346853914624381276651590454612":
 double: 1
 idouble: 1
+ildouble: 4
+ldouble: 4
 
 # jn
 Test "jn (0, -4.0) == -3.9714980986384737228659076845169804197562E-1":
@@ -396,9 +580,13 @@ double: 2
 float: 1
 idouble: 2
 ifloat: 1
+ildouble: 2
+ldouble: 2
 Test "jn (0, 2.0) == 0.223890779141235668051827454649948626":
 float: 2
 ifloat: 2
+ildouble: 2
+ldouble: 2
 Test "jn (0, 4.0) == -3.9714980986384737228659076845169804197562E-1":
 double: 1
 float: 1
@@ -407,30 +595,57 @@ ifloat: 1
 Test "jn (0, 8.0) == 0.171650807137553906090869407851972001":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
+Test "jn (1, -1.0) == -0.440050585744933515959682203718914913":
+ildouble: 1
+ldouble: 1
+Test "jn (1, 0.75) == 0.349243602174862192523281016426251335":
+ildouble: 1
+ldouble: 1
+Test "jn (1, 1.0) == 0.440050585744933515959682203718914913":
+ildouble: 1
+ldouble: 1
 Test "jn (1, 10.0) == 0.0434727461688614366697487680258592883":
 float: 2
 ifloat: 2
+ildouble: 2
+ldouble: 2
 Test "jn (1, 2.0) == 0.576724807756873387202448242269137087":
 double: 1
 idouble: 1
 Test "jn (1, 8.0) == 0.234636346853914624381276651590454612":
 double: 1
 idouble: 1
+ildouble: 4
+ldouble: 4
+Test "jn (10, -1.0) == 0.263061512368745320699785368779050294e-9":
+ildouble: 1
+ldouble: 1
 Test "jn (10, 0.125) == 0.250543369809369890173993791865771547e-18":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "jn (10, 0.75) == 0.149621713117596814698712483621682835e-10":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
+Test "jn (10, 1.0) == 0.263061512368745320699785368779050294e-9":
+ildouble: 1
+ldouble: 1
 Test "jn (10, 10.0) == 0.207486106633358857697278723518753428":
 double: 4
 float: 3
 idouble: 4
 ifloat: 3
+ildouble: 2
+ldouble: 2
 Test "jn (10, 2.0) == 0.251538628271673670963516093751820639e-6":
 float: 4
 ifloat: 4
@@ -449,6 +664,8 @@ double: 3
 float: 1
 idouble: 3
 ifloat: 1
+ildouble: 2
+ldouble: 2
 Test "jn (3, 2.0) == 0.128943249474402051098793332969239835":
 double: 1
 float: 2
@@ -456,16 +673,79 @@ idouble: 1
 ifloat: 2
 
 # lgamma
+Test "lgamma (-0.5) == log(2*sqrt(pi))":
+ildouble: 1
+ldouble: 1
 Test "lgamma (0.7) == 0.260867246531666514385732417016759578":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "lgamma (1.2) == -0.853740900033158497197028392998854470e-1":
 double: 1
 float: 2
 idouble: 1
 ifloat: 2
+ildouble: 1
+ldouble: 1
+
+# llrint
+Test "llrint (-4503599627370495.5) == -4503599627370496LL":
+ildouble: 1
+ldouble: 1
+Test "llrint (-4503599627370496.75) == -4503599627370497LL":
+ildouble: 1
+ldouble: 1
+Test "llrint (-4503599627370497.5) == -4503599627370498LL":
+ildouble: 1
+ldouble: 1
+Test "llrint (-72057594037927935.5) == -72057594037927936LL":
+ildouble: 1
+ldouble: 1
+Test "llrint (-72057594037927936.75) == -72057594037927937LL":
+ildouble: 1
+ldouble: 1
+Test "llrint (-72057594037927937.5) == -72057594037927938LL":
+ildouble: 1
+ldouble: 1
+Test "llrint (-9007199254740991.5) == -9007199254740992LL":
+ildouble: 1
+ldouble: 1
+Test "llrint (-9007199254740992.75) == -9007199254740993LL":
+ildouble: 1
+ldouble: 1
+Test "llrint (-9007199254740993.5) == -9007199254740994LL":
+ildouble: 1
+ldouble: 1
+Test "llrint (4503599627370495.5) == 4503599627370496LL":
+ildouble: -1
+ldouble: -1
+Test "llrint (4503599627370496.75) == 4503599627370497LL":
+ildouble: -1
+ldouble: -1
+Test "llrint (4503599627370497.5) == 4503599627370498LL":
+ildouble: -1
+ldouble: -1
+Test "llrint (72057594037927935.5) == 72057594037927936LL":
+ildouble: -1
+ldouble: -1
+Test "llrint (72057594037927936.75) == 72057594037927937LL":
+ildouble: -1
+ldouble: -1
+Test "llrint (72057594037927937.5) == 72057594037927938LL":
+ildouble: -1
+ldouble: -1
+Test "llrint (9007199254740991.5) == 9007199254740992LL":
+ildouble: -1
+ldouble: -1
+Test "llrint (9007199254740992.75) == 9007199254740993LL":
+ildouble: -1
+ldouble: -1
+Test "llrint (9007199254740993.5) == 9007199254740994LL":
+ildouble: -1
+ldouble: -1
 
 # log10
 Test "log10 (0.75) == -0.124938736608299953132449886193870744":
@@ -476,23 +756,34 @@ ifloat: 2
 Test "log10 (e) == log10(e)":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 # log1p
 Test "log1p (-0.25) == -0.287682072451780927439219005993827432":
 float: 1
 ifloat: 1
 
+# log2
+Test "log2 (0.75) == -.415037499278843818546261056052183492":
+ildouble: 1
+ldouble: 1
+
 # sincos
 Test "sincos (M_PI_6l*2.0, &sin_res, &cos_res) puts 0.5 in cos_res":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "sincos (M_PI_6l*2.0, &sin_res, &cos_res) puts 0.86602540378443864676372317075293616 in sin_res":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "sincos (pi/2, &sin_res, &cos_res) puts 0 in cos_res":
 double: 1
 float: 1
@@ -502,17 +793,38 @@ Test "sincos (pi/6, &sin_res, &cos_res) puts 0.866025403784438646763723170752936
 float: 1
 ifloat: 1
 
+# sqrt
+Test "sqrt (2) == M_SQRT2l":
+ildouble: 1
+ldouble: 1
+
 # tan
 Test "tan (pi/4) == 1":
 double: 1
 idouble: 1
 
+# tanh
+Test "tanh (-0.75) == -0.635148952387287319214434357312496495":
+ildouble: 1
+ldouble: 1
+Test "tanh (-1.0) == -0.7615941559557648881194582826047935904":
+ildouble: 1
+ldouble: 1
+Test "tanh (0.75) == 0.635148952387287319214434357312496495":
+ildouble: 1
+ldouble: 1
+Test "tanh (1.0) == 0.7615941559557648881194582826047935904":
+ildouble: 1
+ldouble: 1
+
 # tgamma
 Test "tgamma (-0.5) == -2 sqrt (pi)":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "tgamma (0.5) == sqrt (pi)":
 float: 1
 ifloat: 1
@@ -521,6 +833,9 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
+Test "tgamma (4) == 6":
+ildouble: 1
+ldouble: 1
 
 # y0
 Test "y0 (1.0) == 0.0882569642156769579829267660235151628":
@@ -538,6 +853,8 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 3
+ldouble: 3
 Test "y0 (2.0) == 0.510375672649745119596606592727157873":
 double: 1
 idouble: 1
@@ -546,16 +863,23 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 3
+ldouble: 3
 
 # y1
 Test "y1 (0.125) == -5.19993611253477499595928744876579921":
 double: 1
 idouble: 1
+Test "y1 (0.75) == -1.03759455076928541973767132140642198":
+ildouble: 1
+ldouble: 1
 Test "y1 (1.5) == -0.412308626973911295952829820633445323":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "y1 (10.0) == 0.249015424206953883923283474663222803":
 double: 3
 float: 1
@@ -566,11 +890,15 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "y1 (8.0) == -0.158060461731247494255555266187483550":
 double: 1
 float: 2
 idouble: 1
 ifloat: 2
+ildouble: 1
+ldouble: 1
 
 # yn
 Test "yn (0, 1.0) == 0.0882569642156769579829267660235151628":
@@ -588,6 +916,8 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 3
+ldouble: 3
 Test "yn (0, 2.0) == 0.510375672649745119596606592727157873":
 double: 1
 idouble: 1
@@ -596,14 +926,21 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 3
+ldouble: 3
 Test "yn (1, 0.125) == -5.19993611253477499595928744876579921":
 double: 1
 idouble: 1
+Test "yn (1, 0.75) == -1.03759455076928541973767132140642198":
+ildouble: 1
+ldouble: 1
 Test "yn (1, 1.5) == -0.412308626973911295952829820633445323":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "yn (1, 10.0) == 0.249015424206953883923283474663222803":
 double: 3
 float: 1
@@ -614,34 +951,48 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "yn (1, 8.0) == -0.158060461731247494255555266187483550":
 double: 1
 float: 2
 idouble: 1
 ifloat: 2
+ildouble: 1
+ldouble: 1
 Test "yn (10, 0.125) == -127057845771019398.252538486899753195":
 double: 1
 idouble: 1
+ildouble: 2
+ldouble: 2
 Test "yn (10, 0.75) == -2133501638.90573424452445412893839236":
 double: 1
 float: 2
 idouble: 1
 ifloat: 2
+ildouble: 5
+ldouble: 5
 Test "yn (10, 1.0) == -121618014.278689189288130426667971145":
 double: 1
 float: 2
 idouble: 1
 ifloat: 2
+ildouble: 1
+ldouble: 1
 Test "yn (10, 10.0) == -0.359814152183402722051986577343560609":
 double: 2
 float: 1
 idouble: 2
 ifloat: 1
+ildouble: 2
+ldouble: 2
 Test "yn (10, 2.0) == -129184.542208039282635913145923304214":
 double: 3
 float: 1
 idouble: 3
 ifloat: 1
+ildouble: 2
+ldouble: 2
 Test "yn (3, 0.125) == -2612.69757350066712600220955744091741":
 double: 1
 idouble: 1
@@ -650,11 +1001,15 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 2
+ldouble: 2
 Test "yn (3, 10.0) == -0.251362657183837329779204747654240998":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 Test "yn (3, 2.0) == -1.12778377684042778608158395773179238":
 double: 1
 idouble: 1
@@ -663,11 +1018,17 @@ idouble: 1
 Function: "atan2":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: "atanh":
 float: 1
 ifloat: 1
 
+Function: Imaginary part of "cacos":
+ildouble: 1
+ldouble: 1
+
 Function: Real part of "cacosh":
 double: 1
 float: 7
@@ -679,6 +1040,8 @@ double: 1
 float: 3
 idouble: 1
 ifloat: 3
+ildouble: 1
+ldouble: 1
 
 Function: Real part of "casin":
 double: 1
@@ -686,17 +1049,25 @@ float: 1
 idouble: 1
 ifloat: 1
 
+Function: Imaginary part of "casin":
+ildouble: 1
+ldouble: 1
+
 Function: Real part of "casinh":
 double: 5
 float: 1
 idouble: 5
 ifloat: 1
+ildouble: 4
+ldouble: 4
 
 Function: Imaginary part of "casinh":
 double: 3
 float: 6
 idouble: 3
 ifloat: 6
+ildouble: 2
+ldouble: 2
 
 Function: Real part of "catan":
 float: 4
@@ -707,50 +1078,72 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: Real part of "catanh":
 double: 4
 idouble: 4
+ildouble: 1
+ldouble: 1
 
 Function: Imaginary part of "catanh":
 float: 6
 ifloat: 6
+ildouble: 1
+ldouble: 1
 
 Function: "cbrt":
 double: 1
 idouble: 1
+ildouble: 1
+ldouble: 1
 
 Function: Real part of "ccos":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: Imaginary part of "ccos":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: Real part of "ccosh":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: Imaginary part of "ccosh":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: Real part of "cexp":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: Imaginary part of "cexp":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: Real part of "clog":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: Imaginary part of "clog":
 float: 3
@@ -759,34 +1152,54 @@ ifloat: 3
 Function: Real part of "clog10":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: Imaginary part of "clog10":
 double: 1
 float: 5
 idouble: 1
 ifloat: 5
+ildouble: 1
+ldouble: 1
 
 Function: "cos":
 double: 2
 float: 1
 idouble: 2
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: Real part of "cpow":
 double: 2
 float: 4
 idouble: 2
 ifloat: 4
+ildouble: 10
+ldouble: 10
 
 Function: Imaginary part of "cpow":
 double: 2
 float: 2
 idouble: 2
 ifloat: 2
+ildouble: 1
+ldouble: 1
+
+Function: Real part of "csin":
+ildouble: 1
+ldouble: 1
+
+Function: Imaginary part of "csin":
+ildouble: 1
+ldouble: 1
 
 Function: Real part of "csinh":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: Imaginary part of "csinh":
 double: 1
@@ -797,24 +1210,38 @@ ifloat: 1
 Function: Real part of "csqrt":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
+
+Function: Imaginary part of "csqrt":
+ildouble: 1
+ldouble: 1
 
 Function: Real part of "ctan":
 double: 1
 idouble: 1
+ildouble: 1
+ldouble: 1
 
 Function: Imaginary part of "ctan":
 double: 1
 idouble: 1
+ildouble: 2
+ldouble: 2
 
 Function: Real part of "ctanh":
 double: 1
 float: 2
 idouble: 1
 ifloat: 2
+ildouble: 1
+ldouble: 1
 
 Function: Imaginary part of "ctanh":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: "erf":
 double: 1
@@ -825,18 +1252,32 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: "exp10":
 double: 6
 float: 2
 idouble: 6
 ifloat: 2
+ildouble: 1
+ldouble: 1
+
+Function: "exp2":
+ildouble: 2
+ldouble: 2
 
 Function: "expm1":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
+
+Function: "gamma":
+ildouble: 1
+ldouble: 1
 
 Function: "hypot":
 float: 1
@@ -847,67 +1288,101 @@ double: 2
 float: 2
 idouble: 2
 ifloat: 2
+ildouble: 2
+ldouble: 2
 
 Function: "j1":
 double: 1
 float: 2
 idouble: 1
 ifloat: 2
+ildouble: 4
+ldouble: 4
 
 Function: "jn":
 double: 4
 float: 4
 idouble: 4
 ifloat: 4
+ildouble: 4
+ldouble: 4
 
 Function: "lgamma":
 double: 1
 float: 2
 idouble: 1
 ifloat: 2
+ildouble: 1
+ldouble: 1
 
 Function: "log10":
 double: 1
 float: 2
 idouble: 1
 ifloat: 2
+ildouble: 1
+ldouble: 1
 
 Function: "log1p":
 float: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
+
+Function: "log2":
+ildouble: 1
+ldouble: 1
 
 Function: "sincos":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
+
+Function: "sqrt":
+ildouble: 1
+ldouble: 1
 
 Function: "tan":
 double: 1
 idouble: 1
 
+Function: "tanh":
+ildouble: 1
+ldouble: 1
+
 Function: "tgamma":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
+ildouble: 1
+ldouble: 1
 
 Function: "y0":
 double: 2
 float: 1
 idouble: 2
 ifloat: 1
+ildouble: 3
+ldouble: 3
 
 Function: "y1":
 double: 3
 float: 2
 idouble: 3
 ifloat: 2
+ildouble: 1
+ldouble: 1
 
 Function: "yn":
 double: 3
 float: 2
 idouble: 3
 ifloat: 2
+ildouble: 5
+ldouble: 5
 
 # end of automatic generation
diff --git a/sysdeps/s390/ldbl2mpn.c b/sysdeps/s390/ldbl2mpn.c
deleted file mode 100644
index 1dac461aef..0000000000
--- a/sysdeps/s390/ldbl2mpn.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/* Copyright (C) 1995, 1996, 1997 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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include "gmp.h"
-#include "gmp-impl.h"
-#include "longlong.h"
-#include "ieee754.h"
-#include <float.h>
-#include <stdlib.h>
-
-/* Convert a `long double' in IEEE854 standard double-precision format to a
-   multi-precision integer representing the significand scaled up by its
-   number of bits (64 for long double) and an integral power of two
-   (MPN frexpl). */
-
-mp_size_t
-__mpn_extract_long_double (mp_ptr res_ptr, mp_size_t size,
-			   int *expt, int *is_neg,
-			   long double value)
-{
-  union ieee854_long_double u;
-  u.d = value;
-
-  *is_neg = u.ieee.negative;
-  *expt = (int) u.ieee.exponent - IEEE854_LONG_DOUBLE_BIAS;
-
-#if BITS_PER_MP_LIMB == 32
-  res_ptr[0] = u.ieee.mantissa1; /* Low-order 32 bits of fraction.  */
-  res_ptr[1] = u.ieee.mantissa0; /* High-order 32 bits.  */
-  #define N 2
-#elif BITS_PER_MP_LIMB == 64
-  /* Hopefully the compiler will combine the two bitfield extracts
-     and this composition into just the original quadword extract.  */
-  res_ptr[0] = ((unsigned long int) u.ieee.mantissa0 << 32) | u.ieee.mantissa1;
-  #define N 1
-#else
-  #error "mp_limb size " BITS_PER_MP_LIMB "not accounted for"
-#endif
-
-  if (u.ieee.exponent == 0)
-    {
-      /* A biased exponent of zero is a special case.
-	 Either it is a zero or it is a denormal number.  */
-      if (res_ptr[0] == 0 && res_ptr[N - 1] == 0) /* Assumes N<=2.  */
-	/* It's zero.  */
-	*expt = 0;
-      else
-	{
-	  /* It is a denormal number, meaning it has no implicit leading
-	     one bit, and its exponent is in fact the format minimum.  */
-	  int cnt;
-
-	  /* One problem with Intel's 80-bit format is that the explicit
-	     leading one in the normalized representation has to be zero
-	     for denormalized number.  If it is one, the number is according
-	     to Intel's specification an invalid number.  We make the
-	     representation unique by explicitly clearing this bit.  */
-	  res_ptr[N - 1] &= ~(1L << ((LDBL_MANT_DIG - 1) % BITS_PER_MP_LIMB));
-
-	  if (res_ptr[N - 1] != 0)
-	    {
-	      count_leading_zeros (cnt, res_ptr[N - 1]);
-	      if (cnt != 0)
-		{
-#if N == 2
-		  res_ptr[N - 1] = res_ptr[N - 1] << cnt
-				   | (res_ptr[0] >> (BITS_PER_MP_LIMB - cnt));
-		  res_ptr[0] <<= cnt;
-#else
-		  res_ptr[N - 1] <<= cnt;
-#endif
-		}
-	      *expt = LDBL_MIN_EXP - 1 - cnt;
-	    }
-	  else
-	    {
-	      count_leading_zeros (cnt, res_ptr[0]);
-	      res_ptr[N - 1] = res_ptr[0] << cnt;
-	      res_ptr[0] = 0;
-	      *expt = LDBL_MIN_EXP - 1 - BITS_PER_MP_LIMB - cnt;
-	    }
-	}
-    }
-
-  return N;
-}
diff --git a/sysdeps/s390/s390-32/bits/wordsize.h b/sysdeps/s390/s390-32/bits/wordsize.h
index 4f50d8586c..b41661217f 100644
--- a/sysdeps/s390/s390-32/bits/wordsize.h
+++ b/sysdeps/s390/s390-32/bits/wordsize.h
@@ -5,3 +5,14 @@
 #else
 # define __WORDSIZE	32
 #endif
+
+#if !defined __NO_LONG_DOUBLE_MATH && !defined __LONG_DOUBLE_MATH_OPTIONAL
+
+/* Signal that we didn't used to have a `long double'. The changes all
+   the `long double' function variants to be redirects to the double
+   functions.  */
+# define __LONG_DOUBLE_MATH_OPTIONAL   1
+# ifndef __LONG_DOUBLE_128__
+#  define __NO_LONG_DOUBLE_MATH        1
+# endif
+#endif
diff --git a/sysdeps/s390/s390-64/bits/wordsize.h b/sysdeps/s390/s390-64/bits/wordsize.h
index 4f50d8586c..b41661217f 100644
--- a/sysdeps/s390/s390-64/bits/wordsize.h
+++ b/sysdeps/s390/s390-64/bits/wordsize.h
@@ -5,3 +5,14 @@
 #else
 # define __WORDSIZE	32
 #endif
+
+#if !defined __NO_LONG_DOUBLE_MATH && !defined __LONG_DOUBLE_MATH_OPTIONAL
+
+/* Signal that we didn't used to have a `long double'. The changes all
+   the `long double' function variants to be redirects to the double
+   functions.  */
+# define __LONG_DOUBLE_MATH_OPTIONAL   1
+# ifndef __LONG_DOUBLE_128__
+#  define __NO_LONG_DOUBLE_MATH        1
+# endif
+#endif
diff --git a/sysdeps/sh/sh4/fpu/bits/mathdef.h b/sysdeps/sh/sh4/bits/mathdef.h
index 2b8caf1943..2b8caf1943 100644
--- a/sysdeps/sh/sh4/fpu/bits/mathdef.h
+++ b/sysdeps/sh/sh4/bits/mathdef.h
diff --git a/sysdeps/sparc/fpu/bits/mathdef.h b/sysdeps/sparc/bits/mathdef.h
index c8dcc9c93f..c8dcc9c93f 100644
--- a/sysdeps/sparc/fpu/bits/mathdef.h
+++ b/sysdeps/sparc/bits/mathdef.h
diff --git a/sysdeps/sparc/sparc32/fpu/s_fabs.c b/sysdeps/sparc/sparc32/fpu/s_fabs.c
index db5ecf2162..b883e6e862 100644
--- a/sysdeps/sparc/sparc32/fpu/s_fabs.c
+++ b/sysdeps/sparc/sparc32/fpu/s_fabs.c
@@ -1,5 +1,11 @@
+#include <math.h>
+#include <math_ldbl_opt.h>
+
 double __fabs (double x)
 {
   return __builtin_fabs (x);
 }
 weak_alias (__fabs, fabs)
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __fabs, fabsl, GLIBC_2_0);
+#endif
diff --git a/sysdeps/sparc/sparc32/fpu/s_fabsl.c b/sysdeps/sparc/sparc32/fpu/s_fabsl.c
index 67e9f47071..3c03b92828 100644
--- a/sysdeps/sparc/sparc32/fpu/s_fabsl.c
+++ b/sysdeps/sparc/sparc32/fpu/s_fabsl.c
@@ -1,5 +1,8 @@
+#include <math.h>
+#include <math_ldbl_opt.h>
+
 long double __fabsl (long double x)
 {
   return __builtin_fabsl (x);
 }
-weak_alias (__fabsl, fabsl)
+long_double_symbol (libm, __fabsl, fabsl);
diff --git a/sysdeps/unix/sysv/linux/s390/Implies b/sysdeps/unix/sysv/linux/s390/Implies
new file mode 100644
index 0000000000..efda9d27c0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/Implies
@@ -0,0 +1,3 @@
+# These supply the ABI compatibility for when long double was double.
+ieee754/ldbl-64-128
+ieee754/ldbl-opt
diff --git a/sysdeps/unix/sysv/linux/s390/fpu/Implies b/sysdeps/unix/sysv/linux/s390/fpu/Implies
new file mode 100644
index 0000000000..3a8e225986
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/fpu/Implies
@@ -0,0 +1,2 @@
+# Override ldbl-opt with s390 specific routines.
+s390/fpu
diff --git a/sysdeps/unix/sysv/linux/s390/nldbl-abi.h b/sysdeps/unix/sysv/linux/s390/nldbl-abi.h
new file mode 100644
index 0000000000..bd985cc59c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/nldbl-abi.h
@@ -0,0 +1,8 @@
+/* ABI version for long double switch.
+   This is used by the Versions and math_ldbl_opt.h files in
+   sysdeps/ieee754/ldbl-opt/.  It gives the ABI version where
+   long double == double was replaced with proper long double
+   for libm *l functions and libc functions using long double.  */
+
+#define NLDBL_VERSION			GLIBC_2.4
+#define LONG_DOUBLE_COMPAT_VERSION	GLIBC_2_4
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile b/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
index e051f54637..cd1b3fb793 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
@@ -9,3 +9,13 @@ CFLAGS-rtld.c += -mcpu=v8
 sysdep-others += lddlibc4
 install-bin += lddlibc4
 endif   # elf
+
+ifeq ($(subdir),math)
+# These 2 routines are normally in libgcc{.a,_s.so.1}.
+# However, sparc32 -mlong-double-128 libgcc relies on
+# glibc providing _Q_* routines and without these files
+# glibc relies on __multc3/__divtc3 only provided
+# by libgcc if configured with -mlong-double-128.
+# Provide these routines here as well.
+libm-routines += multc3 divtc3
+endif   # math
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/fpu/Implies b/sysdeps/unix/sysv/linux/sparc/sparc32/fpu/Implies
new file mode 100644
index 0000000000..dbcd1e9e6f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/fpu/Implies
@@ -0,0 +1,2 @@
+# We must list this here to move it ahead of the ldbl-opt code.
+sparc/sparc32/fpu
diff --git a/sysdeps/x86_64/fpu/bits/mathdef.h b/sysdeps/x86_64/bits/mathdef.h
index 7b16189590..7b16189590 100644
--- a/sysdeps/x86_64/fpu/bits/mathdef.h
+++ b/sysdeps/x86_64/bits/mathdef.h