Convert _Complex tangent functions to generated code

This converts s_c{,a}tan{,h}{f,,l} into a single
templated file c{,a}tan{,h}_template.c with the
exception of alpha.

17 files changed, 178 insertions, 1796 deletions

diff --git a/math/Makefile b/math/Makefile
index 8873a9e..03cbd1d 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -47,7 +47,8 @@ libm-support = s_lib_version s_matherr s_signgam			\
 # <func>_template.c and the appropriate math-type-macros-<TYPE>.h.
 gen-libm-calls = cargF conjF cimagF crealF cabsF s_cacosF		  \
 	         s_cacoshF s_ccosF s_ccoshF s_casinF s_csinF s_casinhF	  \
-		 k_casinhF s_csinhF
+		 k_casinhF s_csinhF k_casinhF s_csinhF s_catanhF s_catanF \
+		 s_ctanF s_ctanhF
 
 libm-calls =								  \
 	e_acosF e_acoshF e_asinF e_atan2F e_atanhF e_coshF e_expF e_fmodF \
@@ -66,8 +67,7 @@ libm-calls =								  \
 	s_fpclassifyF s_fmaxF s_fminF s_fdimF s_nanF s_truncF		  \
 	s_remquoF e_log2F e_exp2F s_roundF s_nearbyintF s_sincosF	  \
 	s_cexpF s_clogF							  \
-	s_catanF s_ctanF s_ctanhF					  \
-	s_catanhF s_csqrtF s_cpowF s_cprojF s_clog10F			  \
+	s_csqrtF s_cpowF s_cprojF s_clog10F				  \
 	s_fmaF s_lrintF s_llrintF s_lroundF s_llroundF e_exp10F w_log2F	  \
 	s_issignalingF $(calls:s_%=m_%) x2y2m1F				  \
 	gamma_productF lgamma_negF lgamma_productF			  \
diff --git a/math/s_catan.c b/math/s_catan.c
deleted file mode 100644
index 5ab4c0d..0000000
--- a/math/s_catan.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/* Return arc tangent of complex double value.
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#include <complex.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-__complex__ double
-__catan (__complex__ double x)
-{
-  __complex__ double res;
-  int rcls = fpclassify (__real__ x);
-  int icls = fpclassify (__imag__ x);
-
-  if (__glibc_unlikely (rcls <= FP_INFINITE || icls <= FP_INFINITE))
-    {
-      if (rcls == FP_INFINITE)
-	{
-	  __real__ res = __copysign (M_PI_2, __real__ x);
-	  __imag__ res = __copysign (0.0, __imag__ x);
-	}
-      else if (icls == FP_INFINITE)
-	{
-	  if (rcls >= FP_ZERO)
-	    __real__ res = __copysign (M_PI_2, __real__ x);
-	  else
-	    __real__ res = __nan ("");
-	  __imag__ res = __copysign (0.0, __imag__ x);
-	}
-      else if (icls == FP_ZERO || icls == FP_INFINITE)
-	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __copysign (0.0, __imag__ x);
-	}
-      else
-	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __nan ("");
-	}
-    }
-  else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
-    {
-      res = x;
-    }
-  else
-    {
-      if (fabs (__real__ x) >= 16.0 / DBL_EPSILON
-	  || fabs (__imag__ x) >= 16.0 / DBL_EPSILON)
-	{
-	  __real__ res = __copysign (M_PI_2, __real__ x);
-	  if (fabs (__real__ x) <= 1.0)
-	    __imag__ res = 1.0 / __imag__ x;
-	  else if (fabs (__imag__ x) <= 1.0)
-	    __imag__ res = __imag__ x / __real__ x / __real__ x;
-	  else
-	    {
-	      double h = __ieee754_hypot (__real__ x / 2.0, __imag__ x / 2.0);
-	      __imag__ res = __imag__ x / h / h / 4.0;
-	    }
-	}
-      else
-	{
-	  double den, absx, absy;
-
-	  absx = fabs (__real__ x);
-	  absy = fabs (__imag__ x);
-	  if (absx < absy)
-	    {
-	      double t = absx;
-	      absx = absy;
-	      absy = t;
-	    }
-
-	  if (absy < DBL_EPSILON / 2.0)
-	    {
-	      den = (1.0 - absx) * (1.0 + absx);
-	      if (den == -0.0)
-		den = 0.0;
-	    }
-	  else if (absx >= 1.0)
-	    den = (1.0 - absx) * (1.0 + absx) - absy * absy;
-	  else if (absx >= 0.75 || absy >= 0.5)
-	    den = -__x2y2m1 (absx, absy);
-	  else
-	    den = (1.0 - absx) * (1.0 + absx) - absy * absy;
-
-	  __real__ res = 0.5 * __ieee754_atan2 (2.0 * __real__ x, den);
-
-	  if (fabs (__imag__ x) == 1.0
-	      && fabs (__real__ x) < DBL_EPSILON * DBL_EPSILON)
-	    __imag__ res = (__copysign (0.5, __imag__ x)
-			    * (M_LN2 - __ieee754_log (fabs (__real__ x))));
-	  else
-	    {
-	      double r2 = 0.0, num, f;
-
-	      if (fabs (__real__ x) >= DBL_EPSILON * DBL_EPSILON)
-		r2 = __real__ x * __real__ x;
-
-	      num = __imag__ x + 1.0;
-	      num = r2 + num * num;
-
-	      den = __imag__ x - 1.0;
-	      den = r2 + den * den;
-
-	      f = num / den;
-	      if (f < 0.5)
-		__imag__ res = 0.25 * __ieee754_log (f);
-	      else
-		{
-		  num = 4.0 * __imag__ x;
-		  __imag__ res = 0.25 * __log1p (num / den);
-		}
-	    }
-	}
-
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-weak_alias (__catan, catan)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__catan, __catanl)
-weak_alias (__catan, catanl)
-#endif
diff --git a/math/s_catan_template.c b/math/s_catan_template.c
index 5ab4c0d..d8db96d 100644
--- a/math/s_catan_template.c
+++ b/math/s_catan_template.c
@@ -1,4 +1,4 @@
-/* Return arc tangent of complex double value.
+/* Return arc tangent of complex float type.
    Copyright (C) 1997-2016 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -22,10 +22,10 @@
 #include <math_private.h>
 #include <float.h>
 
-__complex__ double
-__catan (__complex__ double x)
+CFLOAT
+M_DECL_FUNC (__catan) (CFLOAT x)
 {
-  __complex__ double res;
+  CFLOAT res;
   int rcls = fpclassify (__real__ x);
   int icls = fpclassify (__imag__ x);
 
@@ -33,26 +33,26 @@ __catan (__complex__ double x)
     {
       if (rcls == FP_INFINITE)
 	{
-	  __real__ res = __copysign (M_PI_2, __real__ x);
-	  __imag__ res = __copysign (0.0, __imag__ x);
+	  __real__ res = M_COPYSIGN (M_MLIT (M_PI_2), __real__ x);
+	  __imag__ res = M_COPYSIGN (0, __imag__ x);
 	}
       else if (icls == FP_INFINITE)
 	{
 	  if (rcls >= FP_ZERO)
-	    __real__ res = __copysign (M_PI_2, __real__ x);
+	    __real__ res = M_COPYSIGN (M_MLIT (M_PI_2), __real__ x);
 	  else
-	    __real__ res = __nan ("");
-	  __imag__ res = __copysign (0.0, __imag__ x);
+	    __real__ res = M_NAN;
+	  __imag__ res = M_COPYSIGN (0, __imag__ x);
 	}
       else if (icls == FP_ZERO || icls == FP_INFINITE)
 	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __copysign (0.0, __imag__ x);
+	  __real__ res = M_NAN;
+	  __imag__ res = M_COPYSIGN (0, __imag__ x);
 	}
       else
 	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __nan ("");
+	  __real__ res = M_NAN;
+	  __imag__ res = M_NAN;
 	}
     }
   else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
@@ -61,72 +61,73 @@ __catan (__complex__ double x)
     }
   else
     {
-      if (fabs (__real__ x) >= 16.0 / DBL_EPSILON
-	  || fabs (__imag__ x) >= 16.0 / DBL_EPSILON)
+      if (M_FABS (__real__ x) >= 16 / M_EPSILON
+	  || M_FABS (__imag__ x) >= 16 / M_EPSILON)
 	{
-	  __real__ res = __copysign (M_PI_2, __real__ x);
-	  if (fabs (__real__ x) <= 1.0)
-	    __imag__ res = 1.0 / __imag__ x;
-	  else if (fabs (__imag__ x) <= 1.0)
+	  __real__ res = M_COPYSIGN (M_MLIT (M_PI_2), __real__ x);
+	  if (M_FABS (__real__ x) <= 1)
+	    __imag__ res = 1 / __imag__ x;
+	  else if (M_FABS (__imag__ x) <= 1)
 	    __imag__ res = __imag__ x / __real__ x / __real__ x;
 	  else
 	    {
-	      double h = __ieee754_hypot (__real__ x / 2.0, __imag__ x / 2.0);
-	      __imag__ res = __imag__ x / h / h / 4.0;
+	      FLOAT h = M_HYPOT (__real__ x / 2, __imag__ x / 2);
+	      __imag__ res = __imag__ x / h / h / 4;
 	    }
 	}
       else
 	{
-	  double den, absx, absy;
+	  FLOAT den, absx, absy;
 
-	  absx = fabs (__real__ x);
-	  absy = fabs (__imag__ x);
+	  absx = M_FABS (__real__ x);
+	  absy = M_FABS (__imag__ x);
 	  if (absx < absy)
 	    {
-	      double t = absx;
+	      FLOAT t = absx;
 	      absx = absy;
 	      absy = t;
 	    }
 
-	  if (absy < DBL_EPSILON / 2.0)
+	  if (absy < M_EPSILON / 2)
 	    {
-	      den = (1.0 - absx) * (1.0 + absx);
-	      if (den == -0.0)
-		den = 0.0;
+	      den = (1 - absx) * (1 + absx);
+	      if (den == 0)
+		den = 0;
 	    }
-	  else if (absx >= 1.0)
-	    den = (1.0 - absx) * (1.0 + absx) - absy * absy;
-	  else if (absx >= 0.75 || absy >= 0.5)
-	    den = -__x2y2m1 (absx, absy);
+	  else if (absx >= 1)
+	    den = (1 - absx) * (1 + absx) - absy * absy;
+	  else if (absx >= M_LIT (0.75) || absy >= M_LIT (0.5))
+	    den = -M_SUF (__x2y2m1) (absx, absy);
 	  else
-	    den = (1.0 - absx) * (1.0 + absx) - absy * absy;
+	    den = (1 - absx) * (1 + absx) - absy * absy;
 
-	  __real__ res = 0.5 * __ieee754_atan2 (2.0 * __real__ x, den);
+	  __real__ res = M_LIT (0.5) * M_ATAN2 (2 * __real__ x, den);
 
-	  if (fabs (__imag__ x) == 1.0
-	      && fabs (__real__ x) < DBL_EPSILON * DBL_EPSILON)
-	    __imag__ res = (__copysign (0.5, __imag__ x)
-			    * (M_LN2 - __ieee754_log (fabs (__real__ x))));
+	  if (M_FABS (__imag__ x) == 1
+	      && M_FABS (__real__ x) < M_EPSILON * M_EPSILON)
+	    __imag__ res = (M_COPYSIGN (M_LIT (0.5), __imag__ x)
+			    * ((FLOAT) M_MLIT (M_LN2)
+			       - M_LOG (M_FABS (__real__ x))));
 	  else
 	    {
-	      double r2 = 0.0, num, f;
+	      FLOAT r2 = 0, num, f;
 
-	      if (fabs (__real__ x) >= DBL_EPSILON * DBL_EPSILON)
+	      if (M_FABS (__real__ x) >= M_EPSILON * M_EPSILON)
 		r2 = __real__ x * __real__ x;
 
-	      num = __imag__ x + 1.0;
+	      num = __imag__ x + 1;
 	      num = r2 + num * num;
 
-	      den = __imag__ x - 1.0;
+	      den = __imag__ x - 1;
 	      den = r2 + den * den;
 
 	      f = num / den;
-	      if (f < 0.5)
-		__imag__ res = 0.25 * __ieee754_log (f);
+	      if (f < M_LIT (0.5))
+		__imag__ res = M_LIT (0.25) * M_LOG (f);
 	      else
 		{
-		  num = 4.0 * __imag__ x;
-		  __imag__ res = 0.25 * __log1p (num / den);
+		  num = 4 * __imag__ x;
+		  __imag__ res = M_LIT (0.25) * M_LOG1P (num / den);
 		}
 	    }
 	}
@@ -136,8 +137,9 @@ __catan (__complex__ double x)
 
   return res;
 }
-weak_alias (__catan, catan)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__catan, __catanl)
-weak_alias (__catan, catanl)
+
+declare_mgen_alias (__catan, catan)
+
+#if M_LIBM_NEED_COMPAT (catan)
+declare_mgen_libm_compat (__catan, catan)
 #endif
diff --git a/math/s_catanf.c b/math/s_catanf.c
deleted file mode 100644
index 63e6b6e..0000000
--- a/math/s_catanf.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/* Return arc tangent of complex float value.
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#include <complex.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-__complex__ float
-__catanf (__complex__ float x)
-{
-  __complex__ float res;
-  int rcls = fpclassify (__real__ x);
-  int icls = fpclassify (__imag__ x);
-
-  if (__glibc_unlikely (rcls <= FP_INFINITE || icls <= FP_INFINITE))
-    {
-      if (rcls == FP_INFINITE)
-	{
-	  __real__ res = __copysignf (M_PI_2, __real__ x);
-	  __imag__ res = __copysignf (0.0, __imag__ x);
-	}
-      else if (icls == FP_INFINITE)
-	{
-	  if (rcls >= FP_ZERO)
-	    __real__ res = __copysignf (M_PI_2, __real__ x);
-	  else
-	    __real__ res = __nanf ("");
-	  __imag__ res = __copysignf (0.0, __imag__ x);
-	}
-      else if (icls == FP_ZERO || icls == FP_INFINITE)
-	{
-	  __real__ res = __nanf ("");
-	  __imag__ res = __copysignf (0.0, __imag__ x);
-	}
-      else
-	{
-	  __real__ res = __nanf ("");
-	  __imag__ res = __nanf ("");
-	}
-    }
-  else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
-    {
-      res = x;
-    }
-  else
-    {
-      if (fabsf (__real__ x) >= 16.0f / FLT_EPSILON
-	  || fabsf (__imag__ x) >= 16.0f / FLT_EPSILON)
-	{
-	  __real__ res = __copysignf ((float) M_PI_2, __real__ x);
-	  if (fabsf (__real__ x) <= 1.0f)
-	    __imag__ res = 1.0f / __imag__ x;
-	  else if (fabsf (__imag__ x) <= 1.0f)
-	    __imag__ res = __imag__ x / __real__ x / __real__ x;
-	  else
-	    {
-	      float h = __ieee754_hypotf (__real__ x / 2.0f,
-					  __imag__ x / 2.0f);
-	      __imag__ res = __imag__ x / h / h / 4.0f;
-	    }
-	}
-      else
-	{
-	  float den, absx, absy;
-
-	  absx = fabsf (__real__ x);
-	  absy = fabsf (__imag__ x);
-	  if (absx < absy)
-	    {
-	      float t = absx;
-	      absx = absy;
-	      absy = t;
-	    }
-
-	  if (absy < FLT_EPSILON / 2.0f)
-	    {
-	      den = (1.0f - absx) * (1.0f + absx);
-	      if (den == -0.0f)
-		den = 0.0f;
-	    }
-	  else if (absx >= 1.0f)
-	    den = (1.0f - absx) * (1.0f + absx) - absy * absy;
-	  else if (absx >= 0.75f || absy >= 0.5f)
-	    den = -__x2y2m1f (absx, absy);
-	  else
-	    den = (1.0f - absx) * (1.0f + absx) - absy * absy;
-
-	  __real__ res = 0.5f * __ieee754_atan2f (2.0f * __real__ x, den);
-
-	  if (fabsf (__imag__ x) == 1.0f
-	      && fabsf (__real__ x) < FLT_EPSILON * FLT_EPSILON)
-	    __imag__ res = (__copysignf (0.5f, __imag__ x)
-			    * ((float) M_LN2
-			       - __ieee754_logf (fabsf (__real__ x))));
-	  else
-	    {
-	      float r2 = 0.0f, num, f;
-
-	      if (fabsf (__real__ x) >= FLT_EPSILON * FLT_EPSILON)
-		r2 = __real__ x * __real__ x;
-
-	      num = __imag__ x + 1.0f;
-	      num = r2 + num * num;
-
-	      den = __imag__ x - 1.0f;
-	      den = r2 + den * den;
-
-	      f = num / den;
-	      if (f < 0.5f)
-		__imag__ res = 0.25f * __ieee754_logf (f);
-	      else
-		{
-		  num = 4.0f * __imag__ x;
-		  __imag__ res = 0.25f * __log1pf (num / den);
-		}
-	    }
-	}
-
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-#ifndef __catanf
-weak_alias (__catanf, catanf)
-#endif
diff --git a/math/s_catanh.c b/math/s_catanh.c
deleted file mode 100644
index 11ea062..0000000
--- a/math/s_catanh.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/* Return arc hyperbole tangent for double value.
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#include <complex.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-__complex__ double
-__catanh (__complex__ double x)
-{
-  __complex__ double res;
-  int rcls = fpclassify (__real__ x);
-  int icls = fpclassify (__imag__ x);
-
-  if (__glibc_unlikely (rcls <= FP_INFINITE || icls <= FP_INFINITE))
-    {
-      if (icls == FP_INFINITE)
-	{
-	  __real__ res = __copysign (0.0, __real__ x);
-	  __imag__ res = __copysign (M_PI_2, __imag__ x);
-	}
-      else if (rcls == FP_INFINITE || rcls == FP_ZERO)
-	{
-	  __real__ res = __copysign (0.0, __real__ x);
-	  if (icls >= FP_ZERO)
-	    __imag__ res = __copysign (M_PI_2, __imag__ x);
-	  else
-	    __imag__ res = __nan ("");
-	}
-      else
-	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __nan ("");
-	}
-    }
-  else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
-    {
-      res = x;
-    }
-  else
-    {
-      if (fabs (__real__ x) >= 16.0 / DBL_EPSILON
-	  || fabs (__imag__ x) >= 16.0 / DBL_EPSILON)
-	{
-	  __imag__ res = __copysign (M_PI_2, __imag__ x);
-	  if (fabs (__imag__ x) <= 1.0)
-	    __real__ res = 1.0 / __real__ x;
-	  else if (fabs (__real__ x) <= 1.0)
-	    __real__ res = __real__ x / __imag__ x / __imag__ x;
-	  else
-	    {
-	      double h = __ieee754_hypot (__real__ x / 2.0, __imag__ x / 2.0);
-	      __real__ res = __real__ x / h / h / 4.0;
-	    }
-	}
-      else
-	{
-	  if (fabs (__real__ x) == 1.0
-	      && fabs (__imag__ x) < DBL_EPSILON * DBL_EPSILON)
-	    __real__ res = (__copysign (0.5, __real__ x)
-			    * (M_LN2 - __ieee754_log (fabs (__imag__ x))));
-	  else
-	    {
-	      double i2 = 0.0;
-	      if (fabs (__imag__ x) >= DBL_EPSILON * DBL_EPSILON)
-		i2 = __imag__ x * __imag__ x;
-
-	      double num = 1.0 + __real__ x;
-	      num = i2 + num * num;
-
-	      double den = 1.0 - __real__ x;
-	      den = i2 + den * den;
-
-	      double f = num / den;
-	      if (f < 0.5)
-		__real__ res = 0.25 * __ieee754_log (f);
-	      else
-		{
-		  num = 4.0 * __real__ x;
-		  __real__ res = 0.25 * __log1p (num / den);
-		}
-	    }
-
-	  double absx, absy, den;
-
-	  absx = fabs (__real__ x);
-	  absy = fabs (__imag__ x);
-	  if (absx < absy)
-	    {
-	      double t = absx;
-	      absx = absy;
-	      absy = t;
-	    }
-
-	  if (absy < DBL_EPSILON / 2.0)
-	    {
-	      den = (1.0 - absx) * (1.0 + absx);
-	      if (den == -0.0)
-		den = 0.0;
-	    }
-	  else if (absx >= 1.0)
-	    den = (1.0 - absx) * (1.0 + absx) - absy * absy;
-	  else if (absx >= 0.75 || absy >= 0.5)
-	    den = -__x2y2m1 (absx, absy);
-	  else
-	    den = (1.0 - absx) * (1.0 + absx) - absy * absy;
-
-	  __imag__ res = 0.5 * __ieee754_atan2 (2.0 * __imag__ x, den);
-	}
-
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-weak_alias (__catanh, catanh)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__catanh, __catanhl)
-weak_alias (__catanh, catanhl)
-#endif
diff --git a/math/s_catanh_template.c b/math/s_catanh_template.c
index 11ea062..0669c4c 100644
--- a/math/s_catanh_template.c
+++ b/math/s_catanh_template.c
@@ -1,4 +1,4 @@
-/* Return arc hyperbole tangent for double value.
+/* Return arc hyperbolic tangent for a complex float type.
    Copyright (C) 1997-2016 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -22,10 +22,10 @@
 #include <math_private.h>
 #include <float.h>
 
-__complex__ double
-__catanh (__complex__ double x)
+CFLOAT
+M_DECL_FUNC (__catanh) (CFLOAT x)
 {
-  __complex__ double res;
+  CFLOAT res;
   int rcls = fpclassify (__real__ x);
   int icls = fpclassify (__imag__ x);
 
@@ -33,21 +33,21 @@ __catanh (__complex__ double x)
     {
       if (icls == FP_INFINITE)
 	{
-	  __real__ res = __copysign (0.0, __real__ x);
-	  __imag__ res = __copysign (M_PI_2, __imag__ x);
+	  __real__ res = M_COPYSIGN (0, __real__ x);
+	  __imag__ res = M_COPYSIGN (M_MLIT (M_PI_2), __imag__ x);
 	}
       else if (rcls == FP_INFINITE || rcls == FP_ZERO)
 	{
-	  __real__ res = __copysign (0.0, __real__ x);
+	  __real__ res = M_COPYSIGN (0, __real__ x);
 	  if (icls >= FP_ZERO)
-	    __imag__ res = __copysign (M_PI_2, __imag__ x);
+	    __imag__ res = M_COPYSIGN (M_MLIT (M_PI_2), __imag__ x);
 	  else
-	    __imag__ res = __nan ("");
+	    __imag__ res = M_NAN;
 	}
       else
 	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __nan ("");
+	  __real__ res = M_NAN;
+	  __imag__ res = M_NAN;
 	}
     }
   else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
@@ -56,73 +56,74 @@ __catanh (__complex__ double x)
     }
   else
     {
-      if (fabs (__real__ x) >= 16.0 / DBL_EPSILON
-	  || fabs (__imag__ x) >= 16.0 / DBL_EPSILON)
+      if (M_FABS (__real__ x) >= 16 / M_EPSILON
+	  || M_FABS (__imag__ x) >= 16 / M_EPSILON)
 	{
-	  __imag__ res = __copysign (M_PI_2, __imag__ x);
-	  if (fabs (__imag__ x) <= 1.0)
-	    __real__ res = 1.0 / __real__ x;
-	  else if (fabs (__real__ x) <= 1.0)
+	  __imag__ res = M_COPYSIGN (M_MLIT (M_PI_2), __imag__ x);
+	  if (M_FABS (__imag__ x) <= 1)
+	    __real__ res = 1 / __real__ x;
+	  else if (M_FABS (__real__ x) <= 1)
 	    __real__ res = __real__ x / __imag__ x / __imag__ x;
 	  else
 	    {
-	      double h = __ieee754_hypot (__real__ x / 2.0, __imag__ x / 2.0);
-	      __real__ res = __real__ x / h / h / 4.0;
+	      FLOAT h = M_HYPOT (__real__ x / 2, __imag__ x / 2);
+	      __real__ res = __real__ x / h / h / 4;
 	    }
 	}
       else
 	{
-	  if (fabs (__real__ x) == 1.0
-	      && fabs (__imag__ x) < DBL_EPSILON * DBL_EPSILON)
-	    __real__ res = (__copysign (0.5, __real__ x)
-			    * (M_LN2 - __ieee754_log (fabs (__imag__ x))));
+	  if (M_FABS (__real__ x) == 1
+	      && M_FABS (__imag__ x) < M_EPSILON * M_EPSILON)
+	    __real__ res = (M_COPYSIGN (M_LIT (0.5), __real__ x)
+			    * ((FLOAT) M_MLIT (M_LN2)
+			       - M_LOG (M_FABS (__imag__ x))));
 	  else
 	    {
-	      double i2 = 0.0;
-	      if (fabs (__imag__ x) >= DBL_EPSILON * DBL_EPSILON)
+	      FLOAT i2 = 0;
+	      if (M_FABS (__imag__ x) >= M_EPSILON * M_EPSILON)
 		i2 = __imag__ x * __imag__ x;
 
-	      double num = 1.0 + __real__ x;
+	      FLOAT num = 1 + __real__ x;
 	      num = i2 + num * num;
 
-	      double den = 1.0 - __real__ x;
+	      FLOAT den = 1 - __real__ x;
 	      den = i2 + den * den;
 
-	      double f = num / den;
-	      if (f < 0.5)
-		__real__ res = 0.25 * __ieee754_log (f);
+	      FLOAT f = num / den;
+	      if (f < M_LIT (0.5))
+		__real__ res = M_LIT (0.25) * M_LOG (f);
 	      else
 		{
-		  num = 4.0 * __real__ x;
-		  __real__ res = 0.25 * __log1p (num / den);
+		  num = 4 * __real__ x;
+		  __real__ res = M_LIT (0.25) * M_LOG1P (num / den);
 		}
 	    }
 
-	  double absx, absy, den;
+	  FLOAT absx, absy, den;
 
-	  absx = fabs (__real__ x);
-	  absy = fabs (__imag__ x);
+	  absx = M_FABS (__real__ x);
+	  absy = M_FABS (__imag__ x);
 	  if (absx < absy)
 	    {
-	      double t = absx;
+	      FLOAT t = absx;
 	      absx = absy;
 	      absy = t;
 	    }
 
-	  if (absy < DBL_EPSILON / 2.0)
+	  if (absy < M_EPSILON / 2)
 	    {
-	      den = (1.0 - absx) * (1.0 + absx);
-	      if (den == -0.0)
-		den = 0.0;
+	      den = (1 - absx) * (1 + absx);
+	      if (den == 0)
+		den = 0;
 	    }
-	  else if (absx >= 1.0)
-	    den = (1.0 - absx) * (1.0 + absx) - absy * absy;
-	  else if (absx >= 0.75 || absy >= 0.5)
-	    den = -__x2y2m1 (absx, absy);
+	  else if (absx >= 1)
+	    den = (1 - absx) * (1 + absx) - absy * absy;
+	  else if (absx >= M_LIT (0.75) || absy >= M_LIT (0.5))
+	    den = -M_SUF (__x2y2m1) (absx, absy);
 	  else
-	    den = (1.0 - absx) * (1.0 + absx) - absy * absy;
+	    den = (1 - absx) * (1 + absx) - absy * absy;
 
-	  __imag__ res = 0.5 * __ieee754_atan2 (2.0 * __imag__ x, den);
+	  __imag__ res = M_LIT (0.5) * M_ATAN2 (2 * __imag__ x, den);
 	}
 
       math_check_force_underflow_complex (res);
@@ -130,8 +131,9 @@ __catanh (__complex__ double x)
 
   return res;
 }
-weak_alias (__catanh, catanh)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__catanh, __catanhl)
-weak_alias (__catanh, catanhl)
+
+declare_mgen_alias (__catanh, catanh)
+
+#if M_LIBM_NEED_COMPAT (catanh)
+declare_mgen_libm_compat (__catanh, catanh)
 #endif
diff --git a/math/s_catanhf.c b/math/s_catanhf.c
deleted file mode 100644
index fe43a51..0000000
--- a/math/s_catanhf.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/* Return arc hyperbole tangent for float value.
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#include <complex.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-__complex__ float
-__catanhf (__complex__ float x)
-{
-  __complex__ float res;
-  int rcls = fpclassify (__real__ x);
-  int icls = fpclassify (__imag__ x);
-
-  if (__glibc_unlikely (rcls <= FP_INFINITE || icls <= FP_INFINITE))
-    {
-      if (icls == FP_INFINITE)
-	{
-	  __real__ res = __copysignf (0.0, __real__ x);
-	  __imag__ res = __copysignf (M_PI_2, __imag__ x);
-	}
-      else if (rcls == FP_INFINITE || rcls == FP_ZERO)
-	{
-	  __real__ res = __copysignf (0.0, __real__ x);
-	  if (icls >= FP_ZERO)
-	    __imag__ res = __copysignf (M_PI_2, __imag__ x);
-	  else
-	    __imag__ res = __nanf ("");
-	}
-      else
-	{
-	  __real__ res = __nanf ("");
-	  __imag__ res = __nanf ("");
-	}
-    }
-  else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
-    {
-      res = x;
-    }
-  else
-    {
-      if (fabsf (__real__ x) >= 16.0f / FLT_EPSILON
-	  || fabsf (__imag__ x) >= 16.0f / FLT_EPSILON)
-	{
-	  __imag__ res = __copysignf ((float) M_PI_2, __imag__ x);
-	  if (fabsf (__imag__ x) <= 1.0f)
-	    __real__ res = 1.0f / __real__ x;
-	  else if (fabsf (__real__ x) <= 1.0f)
-	    __real__ res = __real__ x / __imag__ x / __imag__ x;
-	  else
-	    {
-	      float h = __ieee754_hypotf (__real__ x / 2.0f,
-					  __imag__ x / 2.0f);
-	      __real__ res = __real__ x / h / h / 4.0f;
-	    }
-	}
-      else
-	{
-	  if (fabsf (__real__ x) == 1.0f
-	      && fabsf (__imag__ x) < FLT_EPSILON * FLT_EPSILON)
-	    __real__ res = (__copysignf (0.5f, __real__ x)
-			    * ((float) M_LN2
-			       - __ieee754_logf (fabsf (__imag__ x))));
-	  else
-	    {
-	      float i2 = 0.0f;
-	      if (fabsf (__imag__ x) >= FLT_EPSILON * FLT_EPSILON)
-		i2 = __imag__ x * __imag__ x;
-
-	      float num = 1.0f + __real__ x;
-	      num = i2 + num * num;
-
-	      float den = 1.0f - __real__ x;
-	      den = i2 + den * den;
-
-	      float f = num / den;
-	      if (f < 0.5f)
-		__real__ res = 0.25f * __ieee754_logf (f);
-	      else
-		{
-		  num = 4.0f * __real__ x;
-		  __real__ res = 0.25f * __log1pf (num / den);
-		}
-	    }
-
-	  float absx, absy, den;
-
-	  absx = fabsf (__real__ x);
-	  absy = fabsf (__imag__ x);
-	  if (absx < absy)
-	    {
-	      float t = absx;
-	      absx = absy;
-	      absy = t;
-	    }
-
-	  if (absy < FLT_EPSILON / 2.0f)
-	    {
-	      den = (1.0f - absx) * (1.0f + absx);
-	      if (den == -0.0f)
-		den = 0.0f;
-	    }
-	  else if (absx >= 1.0f)
-	    den = (1.0f - absx) * (1.0f + absx) - absy * absy;
-	  else if (absx >= 0.75f || absy >= 0.5f)
-	    den = -__x2y2m1f (absx, absy);
-	  else
-	    den = (1.0f - absx) * (1.0f + absx) - absy * absy;
-
-	  __imag__ res = 0.5f * __ieee754_atan2f (2.0f * __imag__ x, den);
-	}
-
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-#ifndef __catanhf
-weak_alias (__catanhf, catanhf)
-#endif
diff --git a/math/s_catanhl.c b/math/s_catanhl.c
deleted file mode 100644
index 4c8e871..0000000
--- a/math/s_catanhl.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/* Return arc hyperbole tangent for long double value.
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#include <complex.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-/* To avoid spurious overflows, use this definition to treat IBM long
-   double as approximating an IEEE-style format.  */
-#if LDBL_MANT_DIG == 106
-# undef LDBL_EPSILON
-# define LDBL_EPSILON 0x1p-106L
-#endif
-
-__complex__ long double
-__catanhl (__complex__ long double x)
-{
-  __complex__ long double res;
-  int rcls = fpclassify (__real__ x);
-  int icls = fpclassify (__imag__ x);
-
-  if (__glibc_unlikely (rcls <= FP_INFINITE || icls <= FP_INFINITE))
-    {
-      if (icls == FP_INFINITE)
-	{
-	  __real__ res = __copysignl (0.0, __real__ x);
-	  __imag__ res = __copysignl (M_PI_2l, __imag__ x);
-	}
-      else if (rcls == FP_INFINITE || rcls == FP_ZERO)
-	{
-	  __real__ res = __copysignl (0.0, __real__ x);
-	  if (icls >= FP_ZERO)
-	    __imag__ res = __copysignl (M_PI_2l, __imag__ x);
-	  else
-	    __imag__ res = __nanl ("");
-	}
-      else
-	{
-	  __real__ res = __nanl ("");
-	  __imag__ res = __nanl ("");
-	}
-    }
-  else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
-    {
-      res = x;
-    }
-  else
-    {
-      if (fabsl (__real__ x) >= 16.0L / LDBL_EPSILON
-	  || fabsl (__imag__ x) >= 16.0L / LDBL_EPSILON)
-	{
-	  __imag__ res = __copysignl (M_PI_2l, __imag__ x);
-	  if (fabsl (__imag__ x) <= 1.0L)
-	    __real__ res = 1.0L / __real__ x;
-	  else if (fabsl (__real__ x) <= 1.0L)
-	    __real__ res = __real__ x / __imag__ x / __imag__ x;
-	  else
-	    {
-	      long double h = __ieee754_hypotl (__real__ x / 2.0L,
-						__imag__ x / 2.0L);
-	      __real__ res = __real__ x / h / h / 4.0L;
-	    }
-	}
-      else
-	{
-	  if (fabsl (__real__ x) == 1.0L
-	      && fabsl (__imag__ x) < LDBL_EPSILON * LDBL_EPSILON)
-	    __real__ res = (__copysignl (0.5L, __real__ x)
-			    * (M_LN2l - __ieee754_logl (fabsl (__imag__ x))));
-	  else
-	    {
-	      long double i2 = 0.0;
-	      if (fabsl (__imag__ x) >= LDBL_EPSILON * LDBL_EPSILON)
-		i2 = __imag__ x * __imag__ x;
-
-	      long double num = 1.0L + __real__ x;
-	      num = i2 + num * num;
-
-	      long double den = 1.0L - __real__ x;
-	      den = i2 + den * den;
-
-	      long double f = num / den;
-	      if (f < 0.5L)
-		__real__ res = 0.25L * __ieee754_logl (f);
-	      else
-		{
-		  num = 4.0L * __real__ x;
-		  __real__ res = 0.25L * __log1pl (num / den);
-		}
-	    }
-
-	  long double absx, absy, den;
-
-	  absx = fabsl (__real__ x);
-	  absy = fabsl (__imag__ x);
-	  if (absx < absy)
-	    {
-	      long double t = absx;
-	      absx = absy;
-	      absy = t;
-	    }
-
-	  if (absy < LDBL_EPSILON / 2.0L)
-	    {
-	      den = (1.0L - absx) * (1.0L + absx);
-	      if (den == -0.0L)
-		den = 0.0L;
-	    }
-	  else if (absx >= 1.0L)
-	    den = (1.0L - absx) * (1.0L + absx) - absy * absy;
-	  else if (absx >= 0.75L || absy >= 0.5L)
-	    den = -__x2y2m1l (absx, absy);
-	  else
-	    den = (1.0L - absx) * (1.0L + absx) - absy * absy;
-
-	  __imag__ res = 0.5L * __ieee754_atan2l (2.0L * __imag__ x, den);
-	}
-
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-weak_alias (__catanhl, catanhl)
diff --git a/math/s_catanl.c b/math/s_catanl.c
deleted file mode 100644
index 4425002..0000000
--- a/math/s_catanl.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/* Return arc tangent of complex long double value.
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#include <complex.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-/* To avoid spurious overflows, use this definition to treat IBM long
-   double as approximating an IEEE-style format.  */
-#if LDBL_MANT_DIG == 106
-# undef LDBL_EPSILON
-# define LDBL_EPSILON 0x1p-106L
-#endif
-
-__complex__ long double
-__catanl (__complex__ long double x)
-{
-  __complex__ long double res;
-  int rcls = fpclassify (__real__ x);
-  int icls = fpclassify (__imag__ x);
-
-  if (__glibc_unlikely (rcls <= FP_INFINITE || icls <= FP_INFINITE))
-    {
-      if (rcls == FP_INFINITE)
-	{
-	  __real__ res = __copysignl (M_PI_2l, __real__ x);
-	  __imag__ res = __copysignl (0.0, __imag__ x);
-	}
-      else if (icls == FP_INFINITE)
-	{
-	  if (rcls >= FP_ZERO)
-	    __real__ res = __copysignl (M_PI_2l, __real__ x);
-	  else
-	    __real__ res = __nanl ("");
-	  __imag__ res = __copysignl (0.0, __imag__ x);
-	}
-      else if (icls == FP_ZERO || icls == FP_INFINITE)
-	{
-	  __real__ res = __nanl ("");
-	  __imag__ res = __copysignl (0.0, __imag__ x);
-	}
-      else
-	{
-	  __real__ res = __nanl ("");
-	  __imag__ res = __nanl ("");
-	}
-    }
-  else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
-    {
-      res = x;
-    }
-  else
-    {
-      if (fabsl (__real__ x) >= 16.0L / LDBL_EPSILON
-	  || fabsl (__imag__ x) >= 16.0L / LDBL_EPSILON)
-	{
-	  __real__ res = __copysignl (M_PI_2l, __real__ x);
-	  if (fabsl (__real__ x) <= 1.0L)
-	    __imag__ res = 1.0L / __imag__ x;
-	  else if (fabsl (__imag__ x) <= 1.0L)
-	    __imag__ res = __imag__ x / __real__ x / __real__ x;
-	  else
-	    {
-	      long double h = __ieee754_hypotl (__real__ x / 2.0L,
-						__imag__ x / 2.0L);
-	      __imag__ res = __imag__ x / h / h / 4.0L;
-	    }
-	}
-      else
-	{
-	  long double den, absx, absy;
-
-	  absx = fabsl (__real__ x);
-	  absy = fabsl (__imag__ x);
-	  if (absx < absy)
-	    {
-	      long double t = absx;
-	      absx = absy;
-	      absy = t;
-	    }
-
-	  if (absy < LDBL_EPSILON / 2.0L)
-	    {
-	      den = (1.0L - absx) * (1.0L + absx);
-	      if (den == -0.0L)
-		den = 0.0L;
-	    }
-	  else if (absx >= 1.0L)
-	    den = (1.0L - absx) * (1.0L + absx) - absy * absy;
-	  else if (absx >= 0.75L || absy >= 0.5L)
-	    den = -__x2y2m1l (absx, absy);
-	  else
-	    den = (1.0L - absx) * (1.0L + absx) - absy * absy;
-
-	  __real__ res = 0.5L * __ieee754_atan2l (2.0L * __real__ x, den);
-
-	  if (fabsl (__imag__ x) == 1.0L
-	      && fabsl (__real__ x) < LDBL_EPSILON * LDBL_EPSILON)
-	    __imag__ res = (__copysignl (0.5L, __imag__ x)
-			    * (M_LN2l - __ieee754_logl (fabsl (__real__ x))));
-	  else
-	    {
-	      long double r2 = 0.0L, num, f;
-
-	      if (fabsl (__real__ x) >= LDBL_EPSILON * LDBL_EPSILON)
-		r2 = __real__ x * __real__ x;
-
-	      num = __imag__ x + 1.0L;
-	      num = r2 + num * num;
-
-	      den = __imag__ x - 1.0L;
-	      den = r2 + den * den;
-
-	      f = num / den;
-	      if (f < 0.5L)
-		__imag__ res = 0.25L * __ieee754_logl (f);
-	      else
-		{
-		  num = 4.0L * __imag__ x;
-		  __imag__ res = 0.25L * __log1pl (num / den);
-		}
-	    }
-	}
-
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-weak_alias (__catanl, catanl)
diff --git a/math/s_ctan.c b/math/s_ctan.c
deleted file mode 100644
index 8e8bf2e..0000000
--- a/math/s_ctan.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/* Complex tangent function for double.
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#include <complex.h>
-#include <fenv.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-__complex__ double
-__ctan (__complex__ double x)
-{
-  __complex__ double res;
-
-  if (__glibc_unlikely (!isfinite (__real__ x) || !isfinite (__imag__ x)))
-    {
-      if (isinf (__imag__ x))
-	{
-	  if (isfinite (__real__ x) && fabs (__real__ x) > 1.0)
-	    {
-	      double sinrx, cosrx;
-	      __sincos (__real__ x, &sinrx, &cosrx);
-	      __real__ res = __copysign (0.0, sinrx * cosrx);
-	    }
-	  else
-	    __real__ res = __copysign (0.0, __real__ x);
-	  __imag__ res = __copysign (1.0, __imag__ x);
-	}
-      else if (__real__ x == 0.0)
-	{
-	  res = x;
-	}
-      else
-	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __nan ("");
-
-	  if (isinf (__real__ x))
-	    feraiseexcept (FE_INVALID);
-	}
-    }
-  else
-    {
-      double sinrx, cosrx;
-      double den;
-      const int t = (int) ((DBL_MAX_EXP - 1) * M_LN2 / 2);
-
-      /* tan(x+iy) = (sin(2x) + i*sinh(2y))/(cos(2x) + cosh(2y))
-	 = (sin(x)*cos(x) + i*sinh(y)*cosh(y)/(cos(x)^2 + sinh(y)^2). */
-
-      if (__glibc_likely (fabs (__real__ x) > DBL_MIN))
-	{
-	  __sincos (__real__ x, &sinrx, &cosrx);
-	}
-      else
-	{
-	  sinrx = __real__ x;
-	  cosrx = 1.0;
-	}
-
-      if (fabs (__imag__ x) > t)
-	{
-	  /* Avoid intermediate overflow when the real part of the
-	     result may be subnormal.  Ignoring negligible terms, the
-	     imaginary part is +/- 1, the real part is
-	     sin(x)*cos(x)/sinh(y)^2 = 4*sin(x)*cos(x)/exp(2y).  */
-	  double exp_2t = __ieee754_exp (2 * t);
-
-	  __imag__ res = __copysign (1.0, __imag__ x);
-	  __real__ res = 4 * sinrx * cosrx;
-	  __imag__ x = fabs (__imag__ x);
-	  __imag__ x -= t;
-	  __real__ res /= exp_2t;
-	  if (__imag__ x > t)
-	    {
-	      /* Underflow (original imaginary part of x has absolute
-		 value > 2t).  */
-	      __real__ res /= exp_2t;
-	    }
-	  else
-	    __real__ res /= __ieee754_exp (2 * __imag__ x);
-	}
-      else
-	{
-	  double sinhix, coshix;
-	  if (fabs (__imag__ x) > DBL_MIN)
-	    {
-	      sinhix = __ieee754_sinh (__imag__ x);
-	      coshix = __ieee754_cosh (__imag__ x);
-	    }
-	  else
-	    {
-	      sinhix = __imag__ x;
-	      coshix = 1.0;
-	    }
-
-	  if (fabs (sinhix) > fabs (cosrx) * DBL_EPSILON)
-	    den = cosrx * cosrx + sinhix * sinhix;
-	  else
-	    den = cosrx * cosrx;
-	  __real__ res = sinrx * cosrx / den;
-	  __imag__ res = sinhix * coshix / den;
-	}
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-weak_alias (__ctan, ctan)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__ctan, __ctanl)
-weak_alias (__ctan, ctanl)
-#endif
diff --git a/math/s_ctan_template.c b/math/s_ctan_template.c
index 8e8bf2e..96efa47 100644
--- a/math/s_ctan_template.c
+++ b/math/s_ctan_template.c
@@ -1,4 +1,4 @@
-/* Complex tangent function for double.
+/* Complex tangent function for a complex float type.
    Copyright (C) 1997-2016 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -23,33 +23,33 @@
 #include <math_private.h>
 #include <float.h>
 
-__complex__ double
-__ctan (__complex__ double x)
+CFLOAT
+M_DECL_FUNC (__ctan) (CFLOAT x)
 {
-  __complex__ double res;
+  CFLOAT res;
 
   if (__glibc_unlikely (!isfinite (__real__ x) || !isfinite (__imag__ x)))
     {
       if (isinf (__imag__ x))
 	{
-	  if (isfinite (__real__ x) && fabs (__real__ x) > 1.0)
+	  if (isfinite (__real__ x) && M_FABS (__real__ x) > 1)
 	    {
-	      double sinrx, cosrx;
-	      __sincos (__real__ x, &sinrx, &cosrx);
-	      __real__ res = __copysign (0.0, sinrx * cosrx);
+	      FLOAT sinrx, cosrx;
+	      M_SINCOS (__real__ x, &sinrx, &cosrx);
+	      __real__ res = M_COPYSIGN (0, sinrx * cosrx);
 	    }
 	  else
-	    __real__ res = __copysign (0.0, __real__ x);
-	  __imag__ res = __copysign (1.0, __imag__ x);
+	    __real__ res = M_COPYSIGN (0, __real__ x);
+	  __imag__ res = M_COPYSIGN (1, __imag__ x);
 	}
-      else if (__real__ x == 0.0)
+      else if (__real__ x == 0)
 	{
 	  res = x;
 	}
       else
 	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __nan ("");
+	  __real__ res = M_NAN;
+	  __imag__ res = M_NAN;
 
 	  if (isinf (__real__ x))
 	    feraiseexcept (FE_INVALID);
@@ -57,34 +57,34 @@ __ctan (__complex__ double x)
     }
   else
     {
-      double sinrx, cosrx;
-      double den;
-      const int t = (int) ((DBL_MAX_EXP - 1) * M_LN2 / 2);
+      FLOAT sinrx, cosrx;
+      FLOAT den;
+      const int t = (int) ((M_MAX_EXP - 1) * M_MLIT (M_LN2) / 2);
 
       /* tan(x+iy) = (sin(2x) + i*sinh(2y))/(cos(2x) + cosh(2y))
 	 = (sin(x)*cos(x) + i*sinh(y)*cosh(y)/(cos(x)^2 + sinh(y)^2). */
 
-      if (__glibc_likely (fabs (__real__ x) > DBL_MIN))
+      if (__glibc_likely (M_FABS (__real__ x) > M_MIN))
 	{
-	  __sincos (__real__ x, &sinrx, &cosrx);
+	  M_SINCOS (__real__ x, &sinrx, &cosrx);
 	}
       else
 	{
 	  sinrx = __real__ x;
-	  cosrx = 1.0;
+	  cosrx = 1;
 	}
 
-      if (fabs (__imag__ x) > t)
+      if (M_FABS (__imag__ x) > t)
 	{
 	  /* Avoid intermediate overflow when the real part of the
 	     result may be subnormal.  Ignoring negligible terms, the
 	     imaginary part is +/- 1, the real part is
 	     sin(x)*cos(x)/sinh(y)^2 = 4*sin(x)*cos(x)/exp(2y).  */
-	  double exp_2t = __ieee754_exp (2 * t);
+	  FLOAT exp_2t = M_EXP (2 * t);
 
-	  __imag__ res = __copysign (1.0, __imag__ x);
+	  __imag__ res = M_COPYSIGN (1, __imag__ x);
 	  __real__ res = 4 * sinrx * cosrx;
-	  __imag__ x = fabs (__imag__ x);
+	  __imag__ x = M_FABS (__imag__ x);
 	  __imag__ x -= t;
 	  __real__ res /= exp_2t;
 	  if (__imag__ x > t)
@@ -94,23 +94,23 @@ __ctan (__complex__ double x)
 	      __real__ res /= exp_2t;
 	    }
 	  else
-	    __real__ res /= __ieee754_exp (2 * __imag__ x);
+	    __real__ res /= M_EXP (2 * __imag__ x);
 	}
       else
 	{
-	  double sinhix, coshix;
-	  if (fabs (__imag__ x) > DBL_MIN)
+	  FLOAT sinhix, coshix;
+	  if (M_FABS (__imag__ x) > M_MIN)
 	    {
-	      sinhix = __ieee754_sinh (__imag__ x);
-	      coshix = __ieee754_cosh (__imag__ x);
+	      sinhix = M_SINH (__imag__ x);
+	      coshix = M_COSH (__imag__ x);
 	    }
 	  else
 	    {
 	      sinhix = __imag__ x;
-	      coshix = 1.0;
+	      coshix = 1;
 	    }
 
-	  if (fabs (sinhix) > fabs (cosrx) * DBL_EPSILON)
+	  if (M_FABS (sinhix) > M_FABS (cosrx) * M_EPSILON)
 	    den = cosrx * cosrx + sinhix * sinhix;
 	  else
 	    den = cosrx * cosrx;
@@ -122,8 +122,9 @@ __ctan (__complex__ double x)
 
   return res;
 }
-weak_alias (__ctan, ctan)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__ctan, __ctanl)
-weak_alias (__ctan, ctanl)
+
+declare_mgen_alias (__ctan, ctan)
+
+#if M_LIBM_NEED_COMPAT (ctan)
+declare_mgen_libm_compat (__ctan, ctan)
 #endif
diff --git a/math/s_ctanf.c b/math/s_ctanf.c
deleted file mode 100644
index 0db2c90..0000000
--- a/math/s_ctanf.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/* Complex tangent function for float.
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#include <complex.h>
-#include <fenv.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-__complex__ float
-__ctanf (__complex__ float x)
-{
-  __complex__ float res;
-
-  if (__glibc_unlikely (!isfinite (__real__ x) || !isfinite (__imag__ x)))
-    {
-      if (isinf (__imag__ x))
-	{
-	  if (isfinite (__real__ x) && fabsf (__real__ x) > 1.0f)
-	    {
-	      float sinrx, cosrx;
-	      __sincosf (__real__ x, &sinrx, &cosrx);
-	      __real__ res = __copysignf (0.0f, sinrx * cosrx);
-	    }
-	  else
-	    __real__ res = __copysignf (0.0, __real__ x);
-	  __imag__ res = __copysignf (1.0, __imag__ x);
-	}
-      else if (__real__ x == 0.0)
-	{
-	  res = x;
-	}
-      else
-	{
-	  __real__ res = __nanf ("");
-	  __imag__ res = __nanf ("");
-
-	  if (isinf (__real__ x))
-	    feraiseexcept (FE_INVALID);
-	}
-    }
-  else
-    {
-      float sinrx, cosrx;
-      float den;
-      const int t = (int) ((FLT_MAX_EXP - 1) * M_LN2 / 2);
-
-      /* tan(x+iy) = (sin(2x) + i*sinh(2y))/(cos(2x) + cosh(2y))
-	 = (sin(x)*cos(x) + i*sinh(y)*cosh(y)/(cos(x)^2 + sinh(y)^2). */
-
-      if (__glibc_likely (fabsf (__real__ x) > FLT_MIN))
-	{
-	  __sincosf (__real__ x, &sinrx, &cosrx);
-	}
-      else
-	{
-	  sinrx = __real__ x;
-	  cosrx = 1.0f;
-	}
-
-      if (fabsf (__imag__ x) > t)
-	{
-	  /* Avoid intermediate overflow when the real part of the
-	     result may be subnormal.  Ignoring negligible terms, the
-	     imaginary part is +/- 1, the real part is
-	     sin(x)*cos(x)/sinh(y)^2 = 4*sin(x)*cos(x)/exp(2y).  */
-	  float exp_2t = __ieee754_expf (2 * t);
-
-	  __imag__ res = __copysignf (1.0, __imag__ x);
-	  __real__ res = 4 * sinrx * cosrx;
-	  __imag__ x = fabsf (__imag__ x);
-	  __imag__ x -= t;
-	  __real__ res /= exp_2t;
-	  if (__imag__ x > t)
-	    {
-	      /* Underflow (original imaginary part of x has absolute
-		 value > 2t).  */
-	      __real__ res /= exp_2t;
-	    }
-	  else
-	    __real__ res /= __ieee754_expf (2 * __imag__ x);
-	}
-      else
-	{
-	  float sinhix, coshix;
-	  if (fabsf (__imag__ x) > FLT_MIN)
-	    {
-	      sinhix = __ieee754_sinhf (__imag__ x);
-	      coshix = __ieee754_coshf (__imag__ x);
-	    }
-	  else
-	    {
-	      sinhix = __imag__ x;
-	      coshix = 1.0f;
-	    }
-
-	  if (fabsf (sinhix) > fabsf (cosrx) * FLT_EPSILON)
-	    den = cosrx * cosrx + sinhix * sinhix;
-	  else
-	    den = cosrx * cosrx;
-	  __real__ res = sinrx * cosrx / den;
-	  __imag__ res = sinhix * coshix / den;
-	}
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-#ifndef __ctanf
-weak_alias (__ctanf, ctanf)
-#endif
diff --git a/math/s_ctanh.c b/math/s_ctanh.c
deleted file mode 100644
index 2d18875..0000000
--- a/math/s_ctanh.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/* Complex hyperbole tangent for double.
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#include <complex.h>
-#include <fenv.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-__complex__ double
-__ctanh (__complex__ double x)
-{
-  __complex__ double res;
-
-  if (__glibc_unlikely (!isfinite (__real__ x) || !isfinite (__imag__ x)))
-    {
-      if (isinf (__real__ x))
-	{
-	  __real__ res = __copysign (1.0, __real__ x);
-	  if (isfinite (__imag__ x) && fabs (__imag__ x) > 1.0)
-	    {
-	      double sinix, cosix;
-	      __sincos (__imag__ x, &sinix, &cosix);
-	      __imag__ res = __copysign (0.0, sinix * cosix);
-	    }
-	  else
-	    __imag__ res = __copysign (0.0, __imag__ x);
-	}
-      else if (__imag__ x == 0.0)
-	{
-	  res = x;
-	}
-      else
-	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __nan ("");
-
-	  if (isinf (__imag__ x))
-	    feraiseexcept (FE_INVALID);
-	}
-    }
-  else
-    {
-      double sinix, cosix;
-      double den;
-      const int t = (int) ((DBL_MAX_EXP - 1) * M_LN2 / 2);
-
-      /* tanh(x+iy) = (sinh(2x) + i*sin(2y))/(cosh(2x) + cos(2y))
-	 = (sinh(x)*cosh(x) + i*sin(y)*cos(y))/(sinh(x)^2 + cos(y)^2).  */
-
-      if (__glibc_likely (fabs (__imag__ x) > DBL_MIN))
-	{
-	  __sincos (__imag__ x, &sinix, &cosix);
-	}
-      else
-	{
-	  sinix = __imag__ x;
-	  cosix = 1.0;
-	}
-
-      if (fabs (__real__ x) > t)
-	{
-	  /* Avoid intermediate overflow when the imaginary part of
-	     the result may be subnormal.  Ignoring negligible terms,
-	     the real part is +/- 1, the imaginary part is
-	     sin(y)*cos(y)/sinh(x)^2 = 4*sin(y)*cos(y)/exp(2x).  */
-	  double exp_2t = __ieee754_exp (2 * t);
-
-	  __real__ res = __copysign (1.0, __real__ x);
-	  __imag__ res = 4 * sinix * cosix;
-	  __real__ x = fabs (__real__ x);
-	  __real__ x -= t;
-	  __imag__ res /= exp_2t;
-	  if (__real__ x > t)
-	    {
-	      /* Underflow (original real part of x has absolute value
-		 > 2t).  */
-	      __imag__ res /= exp_2t;
-	    }
-	  else
-	    __imag__ res /= __ieee754_exp (2 * __real__ x);
-	}
-      else
-	{
-	  double sinhrx, coshrx;
-	  if (fabs (__real__ x) > DBL_MIN)
-	    {
-	      sinhrx = __ieee754_sinh (__real__ x);
-	      coshrx = __ieee754_cosh (__real__ x);
-	    }
-	  else
-	    {
-	      sinhrx = __real__ x;
-	      coshrx = 1.0;
-	    }
-
-	  if (fabs (sinhrx) > fabs (cosix) * DBL_EPSILON)
-	    den = sinhrx * sinhrx + cosix * cosix;
-	  else
-	    den = cosix * cosix;
-	  __real__ res = sinhrx * coshrx / den;
-	  __imag__ res = sinix * cosix / den;
-	}
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-weak_alias (__ctanh, ctanh)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__ctanh, __ctanhl)
-weak_alias (__ctanh, ctanhl)
-#endif
diff --git a/math/s_ctanh_template.c b/math/s_ctanh_template.c
index 2d18875..a7b7ebc 100644
--- a/math/s_ctanh_template.c
+++ b/math/s_ctanh_template.c
@@ -1,4 +1,4 @@
-/* Complex hyperbole tangent for double.
+/* Complex hyperbolic tangent for float types.
    Copyright (C) 1997-2016 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -23,33 +23,33 @@
 #include <math_private.h>
 #include <float.h>
 
-__complex__ double
-__ctanh (__complex__ double x)
+CFLOAT
+M_DECL_FUNC (__ctanh) (CFLOAT x)
 {
-  __complex__ double res;
+  CFLOAT res;
 
   if (__glibc_unlikely (!isfinite (__real__ x) || !isfinite (__imag__ x)))
     {
       if (isinf (__real__ x))
 	{
-	  __real__ res = __copysign (1.0, __real__ x);
-	  if (isfinite (__imag__ x) && fabs (__imag__ x) > 1.0)
+	  __real__ res = M_COPYSIGN (1, __real__ x);
+	  if (isfinite (__imag__ x) && M_FABS (__imag__ x) > 1)
 	    {
-	      double sinix, cosix;
-	      __sincos (__imag__ x, &sinix, &cosix);
-	      __imag__ res = __copysign (0.0, sinix * cosix);
+	      FLOAT sinix, cosix;
+	      M_SINCOS (__imag__ x, &sinix, &cosix);
+	      __imag__ res = M_COPYSIGN (0, sinix * cosix);
 	    }
 	  else
-	    __imag__ res = __copysign (0.0, __imag__ x);
+	    __imag__ res = M_COPYSIGN (0, __imag__ x);
 	}
-      else if (__imag__ x == 0.0)
+      else if (__imag__ x == 0)
 	{
 	  res = x;
 	}
       else
 	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __nan ("");
+	  __real__ res = M_NAN;
+	  __imag__ res = M_NAN;
 
 	  if (isinf (__imag__ x))
 	    feraiseexcept (FE_INVALID);
@@ -57,34 +57,34 @@ __ctanh (__complex__ double x)
     }
   else
     {
-      double sinix, cosix;
-      double den;
-      const int t = (int) ((DBL_MAX_EXP - 1) * M_LN2 / 2);
+      FLOAT sinix, cosix;
+      FLOAT den;
+      const int t = (int) ((M_MAX_EXP - 1) * M_MLIT (M_LN2) / 2);
 
       /* tanh(x+iy) = (sinh(2x) + i*sin(2y))/(cosh(2x) + cos(2y))
 	 = (sinh(x)*cosh(x) + i*sin(y)*cos(y))/(sinh(x)^2 + cos(y)^2).  */
 
-      if (__glibc_likely (fabs (__imag__ x) > DBL_MIN))
+      if (__glibc_likely (M_FABS (__imag__ x) > M_MIN))
 	{
-	  __sincos (__imag__ x, &sinix, &cosix);
+	  M_SINCOS (__imag__ x, &sinix, &cosix);
 	}
       else
 	{
 	  sinix = __imag__ x;
-	  cosix = 1.0;
+	  cosix = 1;
 	}
 
-      if (fabs (__real__ x) > t)
+      if (M_FABS (__real__ x) > t)
 	{
 	  /* Avoid intermediate overflow when the imaginary part of
 	     the result may be subnormal.  Ignoring negligible terms,
 	     the real part is +/- 1, the imaginary part is
 	     sin(y)*cos(y)/sinh(x)^2 = 4*sin(y)*cos(y)/exp(2x).  */
-	  double exp_2t = __ieee754_exp (2 * t);
+	  FLOAT exp_2t = M_EXP (2 * t);
 
-	  __real__ res = __copysign (1.0, __real__ x);
+	  __real__ res = M_COPYSIGN (1, __real__ x);
 	  __imag__ res = 4 * sinix * cosix;
-	  __real__ x = fabs (__real__ x);
+	  __real__ x = M_FABS (__real__ x);
 	  __real__ x -= t;
 	  __imag__ res /= exp_2t;
 	  if (__real__ x > t)
@@ -94,23 +94,23 @@ __ctanh (__complex__ double x)
 	      __imag__ res /= exp_2t;
 	    }
 	  else
-	    __imag__ res /= __ieee754_exp (2 * __real__ x);
+	    __imag__ res /= M_EXP (2 * __real__ x);
 	}
       else
 	{
-	  double sinhrx, coshrx;
-	  if (fabs (__real__ x) > DBL_MIN)
+	  FLOAT sinhrx, coshrx;
+	  if (M_FABS (__real__ x) > M_MIN)
 	    {
-	      sinhrx = __ieee754_sinh (__real__ x);
-	      coshrx = __ieee754_cosh (__real__ x);
+	      sinhrx = M_SINH (__real__ x);
+	      coshrx = M_COSH (__real__ x);
 	    }
 	  else
 	    {
 	      sinhrx = __real__ x;
-	      coshrx = 1.0;
+	      coshrx = 1;
 	    }
 
-	  if (fabs (sinhrx) > fabs (cosix) * DBL_EPSILON)
+	  if (M_FABS (sinhrx) > M_FABS (cosix) * M_EPSILON)
 	    den = sinhrx * sinhrx + cosix * cosix;
 	  else
 	    den = cosix * cosix;
@@ -122,8 +122,9 @@ __ctanh (__complex__ double x)
 
   return res;
 }
-weak_alias (__ctanh, ctanh)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__ctanh, __ctanhl)
-weak_alias (__ctanh, ctanhl)
+
+declare_mgen_alias (__ctanh, ctanh)
+
+#if M_LIBM_NEED_COMPAT (ctanh)
+declare_mgen_libm_compat (__ctanh, ctanh)
 #endif
diff --git a/math/s_ctanhf.c b/math/s_ctanhf.c
deleted file mode 100644
index ffe95f6..0000000
--- a/math/s_ctanhf.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/* Complex hyperbole tangent for float.
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#include <complex.h>
-#include <fenv.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-__complex__ float
-__ctanhf (__complex__ float x)
-{
-  __complex__ float res;
-
-  if (__glibc_unlikely (!isfinite (__real__ x) || !isfinite (__imag__ x)))
-    {
-      if (isinf (__real__ x))
-	{
-	  __real__ res = __copysignf (1.0, __real__ x);
-	  if (isfinite (__imag__ x) && fabsf (__imag__ x) > 1.0f)
-	    {
-	      float sinix, cosix;
-	      __sincosf (__imag__ x, &sinix, &cosix);
-	      __imag__ res = __copysignf (0.0f, sinix * cosix);
-	    }
-	  else
-	    __imag__ res = __copysignf (0.0, __imag__ x);
-	}
-      else if (__imag__ x == 0.0)
-	{
-	  res = x;
-	}
-      else
-	{
-	  __real__ res = __nanf ("");
-	  __imag__ res = __nanf ("");
-
-	  if (isinf (__imag__ x))
-	    feraiseexcept (FE_INVALID);
-	}
-    }
-  else
-    {
-      float sinix, cosix;
-      float den;
-      const int t = (int) ((FLT_MAX_EXP - 1) * M_LN2 / 2);
-
-      /* tanh(x+iy) = (sinh(2x) + i*sin(2y))/(cosh(2x) + cos(2y))
-	 = (sinh(x)*cosh(x) + i*sin(y)*cos(y))/(sinh(x)^2 + cos(y)^2).  */
-
-      if (__glibc_likely (fabsf (__imag__ x) > FLT_MIN))
-	{
-	  __sincosf (__imag__ x, &sinix, &cosix);
-	}
-      else
-	{
-	  sinix = __imag__ x;
-	  cosix = 1.0f;
-	}
-
-      if (fabsf (__real__ x) > t)
-	{
-	  /* Avoid intermediate overflow when the imaginary part of
-	     the result may be subnormal.  Ignoring negligible terms,
-	     the real part is +/- 1, the imaginary part is
-	     sin(y)*cos(y)/sinh(x)^2 = 4*sin(y)*cos(y)/exp(2x).  */
-	  float exp_2t = __ieee754_expf (2 * t);
-
-	  __real__ res = __copysignf (1.0, __real__ x);
-	  __imag__ res = 4 * sinix * cosix;
-	  __real__ x = fabsf (__real__ x);
-	  __real__ x -= t;
-	  __imag__ res /= exp_2t;
-	  if (__real__ x > t)
-	    {
-	      /* Underflow (original real part of x has absolute value
-		 > 2t).  */
-	      __imag__ res /= exp_2t;
-	    }
-	  else
-	    __imag__ res /= __ieee754_expf (2 * __real__ x);
-	}
-      else
-	{
-	  float sinhrx, coshrx;
-	  if (fabsf (__real__ x) > FLT_MIN)
-	    {
-	      sinhrx = __ieee754_sinhf (__real__ x);
-	      coshrx = __ieee754_coshf (__real__ x);
-	    }
-	  else
-	    {
-	      sinhrx = __real__ x;
-	      coshrx = 1.0f;
-	    }
-
-	  if (fabsf (sinhrx) > fabsf (cosix) * FLT_EPSILON)
-	    den = sinhrx * sinhrx + cosix * cosix;
-	  else
-	    den = cosix * cosix;
-	  __real__ res = sinhrx * coshrx / den;
-	  __imag__ res = sinix * cosix / den;
-	}
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-#ifndef __ctanhf
-weak_alias (__ctanhf, ctanhf)
-#endif
diff --git a/math/s_ctanhl.c b/math/s_ctanhl.c
deleted file mode 100644
index 3404d06..0000000
--- a/math/s_ctanhl.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/* Complex hyperbole tangent for long double.
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#include <complex.h>
-#include <fenv.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-/* To avoid spurious underflows, use this definition to treat IBM long
-   double as approximating an IEEE-style format.  */
-#if LDBL_MANT_DIG == 106
-# undef LDBL_EPSILON
-# define LDBL_EPSILON 0x1p-106L
-#endif
-
-__complex__ long double
-__ctanhl (__complex__ long double x)
-{
-  __complex__ long double res;
-
-  if (__glibc_unlikely (!isfinite (__real__ x) || !isfinite (__imag__ x)))
-    {
-      if (isinf (__real__ x))
-	{
-	  __real__ res = __copysignl (1.0, __real__ x);
-	  if (isfinite (__imag__ x) && fabsl (__imag__ x) > 1.0L)
-	    {
-	      long double sinix, cosix;
-	      __sincosl (__imag__ x, &sinix, &cosix);
-	      __imag__ res = __copysignl (0.0L, sinix * cosix);
-	    }
-	  else
-	    __imag__ res = __copysignl (0.0, __imag__ x);
-	}
-      else if (__imag__ x == 0.0)
-	{
-	  res = x;
-	}
-      else
-	{
-	  __real__ res = __nanl ("");
-	  __imag__ res = __nanl ("");
-
-	  if (isinf (__imag__ x))
-	    feraiseexcept (FE_INVALID);
-	}
-    }
-  else
-    {
-      long double sinix, cosix;
-      long double den;
-      const int t = (int) ((LDBL_MAX_EXP - 1) * M_LN2l / 2);
-
-      /* tanh(x+iy) = (sinh(2x) + i*sin(2y))/(cosh(2x) + cos(2y))
-	 = (sinh(x)*cosh(x) + i*sin(y)*cos(y))/(sinh(x)^2 + cos(y)^2).  */
-
-      if (__glibc_likely (fabsl (__imag__ x) > LDBL_MIN))
-	{
-	  __sincosl (__imag__ x, &sinix, &cosix);
-	}
-      else
-	{
-	  sinix = __imag__ x;
-	  cosix = 1.0;
-	}
-
-      if (fabsl (__real__ x) > t)
-	{
-	  /* Avoid intermediate overflow when the imaginary part of
-	     the result may be subnormal.  Ignoring negligible terms,
-	     the real part is +/- 1, the imaginary part is
-	     sin(y)*cos(y)/sinh(x)^2 = 4*sin(y)*cos(y)/exp(2x).  */
-	  long double exp_2t = __ieee754_expl (2 * t);
-
-	  __real__ res = __copysignl (1.0, __real__ x);
-	  __imag__ res = 4 * sinix * cosix;
-	  __real__ x = fabsl (__real__ x);
-	  __real__ x -= t;
-	  __imag__ res /= exp_2t;
-	  if (__real__ x > t)
-	    {
-	      /* Underflow (original real part of x has absolute value
-		 > 2t).  */
-	      __imag__ res /= exp_2t;
-	    }
-	  else
-	    __imag__ res /= __ieee754_expl (2 * __real__ x);
-	}
-      else
-	{
-	  long double sinhrx, coshrx;
-	  if (fabsl (__real__ x) > LDBL_MIN)
-	    {
-	      sinhrx = __ieee754_sinhl (__real__ x);
-	      coshrx = __ieee754_coshl (__real__ x);
-	    }
-	  else
-	    {
-	      sinhrx = __real__ x;
-	      coshrx = 1.0L;
-	    }
-
-	  if (fabsl (sinhrx) > fabsl (cosix) * LDBL_EPSILON)
-	    den = sinhrx * sinhrx + cosix * cosix;
-	  else
-	    den = cosix * cosix;
-	  __real__ res = sinhrx * coshrx / den;
-	  __imag__ res = sinix * cosix / den;
-	}
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-weak_alias (__ctanhl, ctanhl)
diff --git a/math/s_ctanl.c b/math/s_ctanl.c
deleted file mode 100644
index d6be22d..0000000
--- a/math/s_ctanl.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/* Complex tangent function for long double.
-   Copyright (C) 1997-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   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/>.  */
-
-#include <complex.h>
-#include <fenv.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-/* To avoid spurious underflows, use this definition to treat IBM long
-   double as approximating an IEEE-style format.  */
-#if LDBL_MANT_DIG == 106
-# undef LDBL_EPSILON
-# define LDBL_EPSILON 0x1p-106L
-#endif
-
-__complex__ long double
-__ctanl (__complex__ long double x)
-{
-  __complex__ long double res;
-
-  if (__glibc_unlikely (!isfinite (__real__ x) || !isfinite (__imag__ x)))
-    {
-      if (isinf (__imag__ x))
-	{
-	  if (isfinite (__real__ x) &&  fabsl (__real__ x) > 1.0L)
-	    {
-	      long double sinrx, cosrx;
-	      __sincosl (__real__ x, &sinrx, &cosrx);
-	      __real__ res = __copysignl (0.0L, sinrx * cosrx);
-	    }
-	  else
-	    __real__ res = __copysignl (0.0, __real__ x);
-	  __imag__ res = __copysignl (1.0, __imag__ x);
-	}
-      else if (__real__ x == 0.0)
-	{
-	  res = x;
-	}
-      else
-	{
-	  __real__ res = __nanl ("");
-	  __imag__ res = __nanl ("");
-
-	  if (isinf (__real__ x))
-	    feraiseexcept (FE_INVALID);
-	}
-    }
-  else
-    {
-      long double sinrx, cosrx;
-      long double den;
-      const int t = (int) ((LDBL_MAX_EXP - 1) * M_LN2l / 2);
-
-      /* tan(x+iy) = (sin(2x) + i*sinh(2y))/(cos(2x) + cosh(2y))
-	 = (sin(x)*cos(x) + i*sinh(y)*cosh(y)/(cos(x)^2 + sinh(y)^2). */
-
-      if (__glibc_likely (fabsl (__real__ x) > LDBL_MIN))
-	{
-	  __sincosl (__real__ x, &sinrx, &cosrx);
-	}
-      else
-	{
-	  sinrx = __real__ x;
-	  cosrx = 1.0;
-	}
-
-      if (fabsl (__imag__ x) > t)
-	{
-	  /* Avoid intermediate overflow when the real part of the
-	     result may be subnormal.  Ignoring negligible terms, the
-	     imaginary part is +/- 1, the real part is
-	     sin(x)*cos(x)/sinh(y)^2 = 4*sin(x)*cos(x)/exp(2y).  */
-	  long double exp_2t = __ieee754_expl (2 * t);
-
-	  __imag__ res = __copysignl (1.0, __imag__ x);
-	  __real__ res = 4 * sinrx * cosrx;
-	  __imag__ x = fabsl (__imag__ x);
-	  __imag__ x -= t;
-	  __real__ res /= exp_2t;
-	  if (__imag__ x > t)
-	    {
-	      /* Underflow (original imaginary part of x has absolute
-		 value > 2t).  */
-	      __real__ res /= exp_2t;
-	    }
-	  else
-	    __real__ res /= __ieee754_expl (2 * __imag__ x);
-	}
-      else
-	{
-	  long double sinhix, coshix;
-	  if (fabsl (__imag__ x) > LDBL_MIN)
-	    {
-	      sinhix = __ieee754_sinhl (__imag__ x);
-	      coshix = __ieee754_coshl (__imag__ x);
-	    }
-	  else
-	    {
-	      sinhix = __imag__ x;
-	      coshix = 1.0L;
-	    }
-
-	  if (fabsl (sinhix) > fabsl (cosrx) * LDBL_EPSILON)
-	    den = cosrx * cosrx + sinhix * sinhix;
-	  else
-	    den = cosrx * cosrx;
-	  __real__ res = sinrx * cosrx / den;
-	  __imag__ res = sinhix * coshix / den;
-	}
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-weak_alias (__ctanl, ctanl)