[5/6] Convert _Complex tangent functions to generated code
diff mbox

Message ID dac593d82ebc86618f91b202999b460d92996560.1467323999.git.murphyp@linux.vnet.ibm.com
State New
Headers show

Commit Message

Paul E. Murphy June 30, 2016, 10:20 p.m. UTC
This is fairly straight fowards.  m68k overrides are
updated to use the framework, and thus are simplified
a bit.

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

	* math/Makefile (libm-gen-calls): Add
	catan, catanh, ctan, ctanh
	(libm-calls): Remove the above

	* math/s_catan.c: Refactor into b_catan.c
	* math/s_catanh.c: Refactor into b_catanh.c
	* math/s_ctan.c: Refactor into b_ctan.c
	* math/s_ctanh.c: Refactor into b_ctanh.c
	* sysdeps/m68k/m680x0/fpu/s_ctanh.c: Refactor into ../b_ctanh.c

	* math/b_catan.c: New file
	* math/b_catanh.c: New file
	* math/b_ctan.c: New file
	* math/b_ctanh.c: New file

	* math/s_catanf.c: Removed
	* math/s_catan.c: Removed
	* math/s_catanl.c: Removed
	* math/s_catanhf.c: Removed
	* math/s_catanh.c: Removed
	* math/s_catanhl.c: Removed
	* math/s_ctanf.c: Removed
	* math/s_ctan.c: Removed
	* math/s_ctanl.c: Removed
	* math/s_ctanhf.c: Removed
	* math/s_ctanh.c: Removed
	* math/s_ctanhl.c: Removed
	* sysdeps/ieee754/ldbl-opt/s_catanhl.c: Removed
	* sysdeps/ieee754/ldbl-opt/s_catanl.c: Removed
	* sysdeps/ieee754/ldbl-opt/s_ctan.c: Removed
	* sysdeps/ieee754/ldbl-opt/s_ctanh.c: Removed
	* sysdeps/ieee754/ldbl-opt/s_ctanhl.c: Removed
	* sysdeps/ieee754/ldbl-opt/s_ctanl.c: Removed
	* sysdeps/m68k/m680x0/fpu/s_ctanhf.c: Removed
	* sysdeps/m68k/m680x0/fpu/s_ctanhl.c: Removed

	* sysdeps/alpha/fpu/Makefile: Update to use template file
	* sysdeps/alpha/fpu/s_catanf.c: Update to use template file
	* sysdeps/alpha/fpu/s_catanhf.c: Update to use template file
	* sysdeps/alpha/fpu/s_ctanf.c: Update to use template file
	* sysdeps/alpha/fpu/s_ctanhf.c: Update to use template file

	* sysdeps/ieee754/ldbl-opt/math-type-macros.h: Add compat
	versions.
---
 math/Makefile                               |   5 +-
 math/b_catan.c                              | 146 +++++++++++++++++++++++++++
 math/b_catanh.c                             | 140 ++++++++++++++++++++++++++
 math/b_ctan.c                               | 130 ++++++++++++++++++++++++
 math/b_ctanh.c                              | 130 ++++++++++++++++++++++++
 math/s_catan.c                              | 143 ---------------------------
 math/s_catanf.c                             | 143 ---------------------------
 math/s_catanh.c                             | 137 --------------------------
 math/s_catanhf.c                            | 137 --------------------------
 math/s_catanhl.c                            | 141 --------------------------
 math/s_catanl.c                             | 147 ----------------------------
 math/s_ctan.c                               | 129 ------------------------
 math/s_ctanf.c                              | 127 ------------------------
 math/s_ctanh.c                              | 129 ------------------------
 math/s_ctanhf.c                             | 127 ------------------------
 math/s_ctanhl.c                             | 132 -------------------------
 math/s_ctanl.c                              | 132 -------------------------
 sysdeps/alpha/fpu/Makefile                  |   8 +-
 sysdeps/alpha/fpu/s_catanf.c                |  13 ++-
 sysdeps/alpha/fpu/s_catanhf.c               |  13 ++-
 sysdeps/alpha/fpu/s_ctanf.c                 |  13 ++-
 sysdeps/alpha/fpu/s_ctanhf.c                |  13 ++-
 sysdeps/ieee754/ldbl-opt/math-type-macros.h |   4 +
 sysdeps/ieee754/ldbl-opt/s_catan.c          |   6 --
 sysdeps/ieee754/ldbl-opt/s_catanh.c         |   6 --
 sysdeps/ieee754/ldbl-opt/s_catanhl.c        |   6 --
 sysdeps/ieee754/ldbl-opt/s_catanl.c         |   6 --
 sysdeps/ieee754/ldbl-opt/s_ctan.c           |   6 --
 sysdeps/ieee754/ldbl-opt/s_ctanh.c          |   6 --
 sysdeps/ieee754/ldbl-opt/s_ctanhl.c         |   6 --
 sysdeps/ieee754/ldbl-opt/s_ctanl.c          |   6 --
 31 files changed, 592 insertions(+), 1695 deletions(-)
 create mode 100644 math/b_catan.c
 create mode 100644 math/b_catanh.c
 create mode 100644 math/b_ctan.c
 create mode 100644 math/b_ctanh.c
 delete mode 100644 math/s_catan.c
 delete mode 100644 math/s_catanf.c
 delete mode 100644 math/s_catanh.c
 delete mode 100644 math/s_catanhf.c
 delete mode 100644 math/s_catanhl.c
 delete mode 100644 math/s_catanl.c
 delete mode 100644 math/s_ctan.c
 delete mode 100644 math/s_ctanf.c
 delete mode 100644 math/s_ctanh.c
 delete mode 100644 math/s_ctanhf.c
 delete mode 100644 math/s_ctanhl.c
 delete mode 100644 math/s_ctanl.c
 delete mode 100644 sysdeps/ieee754/ldbl-opt/s_catan.c
 delete mode 100644 sysdeps/ieee754/ldbl-opt/s_catanh.c
 delete mode 100644 sysdeps/ieee754/ldbl-opt/s_catanhl.c
 delete mode 100644 sysdeps/ieee754/ldbl-opt/s_catanl.c
 delete mode 100644 sysdeps/ieee754/ldbl-opt/s_ctan.c
 delete mode 100644 sysdeps/ieee754/ldbl-opt/s_ctanh.c
 delete mode 100644 sysdeps/ieee754/ldbl-opt/s_ctanhl.c
 delete mode 100644 sysdeps/ieee754/ldbl-opt/s_ctanl.c

Patch
diff mbox

diff --git a/math/Makefile b/math/Makefile
index ac91a84..63a385d 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -55,7 +55,7 @@  libm-support = s_lib_version s_matherr s_signgam			\
 # will match the name s_<func><type suffix>
 gen-libm-calls = g_carg_F g_conj_F g_cimag_F g_creal_F g_cabs_F g_cacos_F \
 	g_cacosh_F g_ccos_F g_ccosh_F g_casin_F g_csin_F g_casinh_F	  \
-	g_k_casinh_F g_csinh_F
+	g_k_casinh_F g_csinh_F g_catanh_F g_catan_F g_ctan_F g_ctanh_F
 
 libm-calls =								  \
 	e_acosF e_acoshF e_asinF e_atan2F e_atanhF e_coshF e_expF e_fmodF \
@@ -74,8 +74,7 @@  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/b_catan.c b/math/b_catan.c
new file mode 100644
index 0000000..64179b7
--- /dev/null
+++ b/math/b_catan.c
@@ -0,0 +1,146 @@ 
+/* 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 M_LIT (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>
+
+CFLOAT
+M_DECL_FUNC (__catan) (CFLOAT x)
+{
+  CFLOAT 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 = M_COPYSIGN (M_MLIT (M_PI_2), __real__ x);
+	  __imag__ res = M_COPYSIGN (M_LIT (0.0), __imag__ x);
+	}
+      else if (icls == FP_INFINITE)
+	{
+	  if (rcls >= FP_ZERO)
+	    __real__ res = M_COPYSIGN (M_MLIT (M_PI_2), __real__ x);
+	  else
+	    __real__ res = M_NAN;
+	  __imag__ res = M_COPYSIGN (M_LIT (0.0), __imag__ x);
+	}
+      else if (icls == FP_ZERO || icls == FP_INFINITE)
+	{
+	  __real__ res = M_NAN;
+	  __imag__ res = M_COPYSIGN (M_LIT (0.0), __imag__ x);
+	}
+      else
+	{
+	  __real__ res = M_NAN;
+	  __imag__ res = M_NAN;
+	}
+    }
+  else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
+    {
+      res = x;
+    }
+  else
+    {
+      if (M_FABS (__real__ x) >= M_LIT (16.0) / M_EPSILON
+	  || M_FABS (__imag__ x) >= M_LIT (16.0) / M_EPSILON)
+	{
+	  __real__ res = M_COPYSIGN (M_MLIT (M_PI_2), __real__ x);
+	  if (M_FABS (__real__ x) <= M_LIT (1.0))
+	    __imag__ res = M_LIT (1.0) / __imag__ x;
+	  else if (M_FABS (__imag__ x) <= M_LIT (1.0))
+	    __imag__ res = __imag__ x / __real__ x / __real__ x;
+	  else
+	    {
+	      FLOAT h = M_HYPOT (__real__ x / M_LIT (2.0),
+				 __imag__ x / M_LIT (2.0));
+	      __imag__ res = __imag__ x / h / h / M_LIT (4.0);
+	    }
+	}
+      else
+	{
+	  FLOAT den, absx, absy;
+
+	  absx = M_FABS (__real__ x);
+	  absy = M_FABS (__imag__ x);
+	  if (absx < absy)
+	    {
+	      FLOAT t = absx;
+	      absx = absy;
+	      absy = t;
+	    }
+
+	  if (absy < M_EPSILON / M_LIT (2.0))
+	    {
+	      den = (M_LIT (1.0) - absx) * (M_LIT (1.0) + absx);
+	      if (den == -M_LIT (0.0))
+		den = M_LIT (0.0);
+	    }
+	  else if (absx >= M_LIT (1.0))
+	    den = (M_LIT (1.0) - absx) * (M_LIT (1.0) + absx) - absy * absy;
+	  else if (absx >= M_LIT (0.75) || absy >= M_LIT (0.5))
+	    den = -M_FUNC (__x2y2m1) (absx, absy);
+	  else
+	    den = (M_LIT (1.0) - absx) * (M_LIT (1.0) + absx) - absy * absy;
+
+	  __real__ res = M_LIT (0.5) * M_ATAN2 (M_LIT (2.0) * __real__ x, den);
+
+	  if (M_FABS (__imag__ x) == M_LIT (1.0)
+	      && 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
+	    {
+	      FLOAT r2 = M_LIT (0.0), num, f;
+
+	      if (M_FABS (__real__ x) >= M_EPSILON * M_EPSILON)
+		r2 = __real__ x * __real__ x;
+
+	      num = __imag__ x + M_LIT (1.0);
+	      num = r2 + num * num;
+
+	      den = __imag__ x - M_LIT (1.0);
+	      den = r2 + den * den;
+
+	      f = num / den;
+	      if (f < M_LIT (0.5))
+		__imag__ res = M_LIT (0.25) * M_LOG (f);
+	      else
+		{
+		  num = M_LIT (4.0) * __imag__ x;
+		  __imag__ res = M_LIT (0.25) * M_LOG1P (num / den);
+		}
+	    }
+	}
+
+      math_check_force_underflow_complex (res);
+    }
+
+  return res;
+}
+
+declare_mgen_alias (__catan, catan)
+
+#if M_LIBM_NEED_COMPAT (catan)
+  declare_mgen_libm_compat (__catan, catan)
+#endif
diff --git a/math/b_catanh.c b/math/b_catanh.c
new file mode 100644
index 0000000..5795272
--- /dev/null
+++ b/math/b_catanh.c
@@ -0,0 +1,140 @@ 
+/* 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 M_LIT (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>
+
+CFLOAT
+M_DECL_FUNC (__catanh) (CFLOAT x)
+{
+  CFLOAT 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 = M_COPYSIGN (M_LIT (0.0), __real__ x);
+	  __imag__ res = M_COPYSIGN (M_MLIT (M_PI_2), __imag__ x);
+	}
+      else if (rcls == FP_INFINITE || rcls == FP_ZERO)
+	{
+	  __real__ res = M_COPYSIGN (M_LIT (0.0), __real__ x);
+	  if (icls >= FP_ZERO)
+	    __imag__ res = M_COPYSIGN (M_MLIT (M_PI_2), __imag__ x);
+	  else
+	    __imag__ res = M_NAN;
+	}
+      else
+	{
+	  __real__ res = M_NAN;
+	  __imag__ res = M_NAN;
+	}
+    }
+  else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
+    {
+      res = x;
+    }
+  else
+    {
+      if (M_FABS (__real__ x) >= M_LIT (16.0) / M_EPSILON
+	  || M_FABS (__imag__ x) >= M_LIT (16.0) / M_EPSILON)
+	{
+	  __imag__ res = M_COPYSIGN (M_MLIT (M_PI_2), __imag__ x);
+	  if (M_FABS (__imag__ x) <= M_LIT (1.0))
+	    __real__ res = M_LIT (1.0) / __real__ x;
+	  else if (M_FABS (__real__ x) <= M_LIT (1.0))
+	    __real__ res = __real__ x / __imag__ x / __imag__ x;
+	  else
+	    {
+	      FLOAT h = M_HYPOT (__real__ x / M_LIT (2.0),
+				 __imag__ x / M_LIT (2.0));
+	      __real__ res = __real__ x / h / h / M_LIT (4.0);
+	    }
+	}
+      else
+	{
+	  if (M_FABS (__real__ x) == M_LIT (1.0)
+	      && 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
+	    {
+	      FLOAT i2 = M_LIT (0.0);
+	      if (M_FABS (__imag__ x) >= M_EPSILON * M_EPSILON)
+		i2 = __imag__ x * __imag__ x;
+
+	      FLOAT num = M_LIT (1.0) + __real__ x;
+	      num = i2 + num * num;
+
+	      FLOAT den = M_LIT (1.0) - __real__ x;
+	      den = i2 + den * den;
+
+	      FLOAT f = num / den;
+	      if (f < M_LIT (0.5))
+		__real__ res = M_LIT (0.25) * M_LOG (f);
+	      else
+		{
+		  num = M_LIT (4.0) * __real__ x;
+		  __real__ res = M_LIT (0.25) * M_LOG1P (num / den);
+		}
+	    }
+
+	  FLOAT absx, absy, den;
+
+	  absx = M_FABS (__real__ x);
+	  absy = M_FABS (__imag__ x);
+	  if (absx < absy)
+	    {
+	      FLOAT t = absx;
+	      absx = absy;
+	      absy = t;
+	    }
+
+	  if (absy < M_EPSILON / M_LIT (2.0))
+	    {
+	      den = (M_LIT (1.0) - absx) * (M_LIT (1.0) + absx);
+	      if (den == -M_LIT (0.0))
+		den = M_LIT (0.0);
+	    }
+	  else if (absx >= M_LIT (1.0))
+	    den = (M_LIT (1.0) - absx) * (M_LIT (1.0) + absx) - absy * absy;
+	  else if (absx >= M_LIT (0.75) || absy >= M_LIT (0.5))
+	    den = -M_FUNC (__x2y2m1) (absx, absy);
+	  else
+	    den = (M_LIT (1.0) - absx) * (M_LIT (1.0) + absx) - absy * absy;
+
+	  __imag__ res = M_LIT (0.5) * M_ATAN2 (M_LIT (2.0) * __imag__ x, den);
+	}
+
+      math_check_force_underflow_complex (res);
+    }
+
+  return res;
+}
+
+declare_mgen_alias (__catanh, catanh)
+
+#if M_LIBM_NEED_COMPAT (catanh)
+  declare_mgen_libm_compat (__catanh, catanh)
+#endif
diff --git a/math/b_ctan.c b/math/b_ctan.c
new file mode 100644
index 0000000..a83a9a5
--- /dev/null
+++ b/math/b_ctan.c
@@ -0,0 +1,130 @@ 
+/* 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 M_LIT (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>
+
+CFLOAT
+M_DECL_FUNC (__ctan) (CFLOAT x)
+{
+  CFLOAT res;
+
+  if (__glibc_unlikely (!isfinite (__real__ x) || !isfinite (__imag__ x)))
+    {
+      if (isinf (__imag__ x))
+	{
+	  if (isfinite (__real__ x) && M_FABS (__real__ x) > M_LIT (1.0))
+	    {
+	      FLOAT sinrx, cosrx;
+	      M_SINCOS (__real__ x, &sinrx, &cosrx);
+	      __real__ res = M_COPYSIGN (M_LIT (0.0), sinrx * cosrx);
+	    }
+	  else
+	    __real__ res = M_COPYSIGN (M_LIT (0.0), __real__ x);
+	  __imag__ res = M_COPYSIGN (M_LIT (1.0), __imag__ x);
+	}
+      else if (__real__ x == M_LIT (0.0))
+	{
+	  res = x;
+	}
+      else
+	{
+	  __real__ res = M_NAN;
+	  __imag__ res = M_NAN;
+
+	  if (isinf (__real__ x))
+	    feraiseexcept (FE_INVALID);
+	}
+    }
+  else
+    {
+      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 (M_FABS (__real__ x) > M_MIN))
+	{
+	  M_SINCOS (__real__ x, &sinrx, &cosrx);
+	}
+      else
+	{
+	  sinrx = __real__ x;
+	  cosrx = M_LIT (1.0);
+	}
+
+      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).  */
+	  FLOAT exp_2t = M_EXP (2 * t);
+
+	  __imag__ res = M_COPYSIGN (M_LIT (1.0), __imag__ x);
+	  __real__ res = 4 * sinrx * cosrx;
+	  __imag__ x = M_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 /= M_EXP (2 * __imag__ x);
+	}
+      else
+	{
+	  FLOAT sinhix, coshix;
+	  if (M_FABS (__imag__ x) > M_MIN)
+	    {
+	      sinhix = M_SINH (__imag__ x);
+	      coshix = M_COSH (__imag__ x);
+	    }
+	  else
+	    {
+	      sinhix = __imag__ x;
+	      coshix = M_LIT (1.0);
+	    }
+
+	  if (M_FABS (sinhix) > M_FABS (cosrx) * M_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;
+}
+
+declare_mgen_alias (__ctan, ctan)
+
+#if M_LIBM_NEED_COMPAT (ctan)
+  declare_mgen_libm_compat (__ctan, ctan)
+#endif
diff --git a/math/b_ctanh.c b/math/b_ctanh.c
new file mode 100644
index 0000000..7038162
--- /dev/null
+++ b/math/b_ctanh.c
@@ -0,0 +1,130 @@ 
+/* Complex hyperbole tangent for complex 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.
+
+   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 M_LIT (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>
+
+CFLOAT
+M_DECL_FUNC (__ctanh) (CFLOAT x)
+{
+  CFLOAT res;
+
+  if (__glibc_unlikely (!isfinite (__real__ x) || !isfinite (__imag__ x)))
+    {
+      if (isinf (__real__ x))
+	{
+	  __real__ res = M_COPYSIGN (M_LIT (1.0), __real__ x);
+	  if (isfinite (__imag__ x) && M_FABS (__imag__ x) > M_LIT (1.0))
+	    {
+	      FLOAT sinix, cosix;
+	      M_SINCOS (__imag__ x, &sinix, &cosix);
+	      __imag__ res = M_COPYSIGN (M_LIT (0.0), sinix * cosix);
+	    }
+	  else
+	    __imag__ res = M_COPYSIGN (M_LIT (0.0), __imag__ x);
+	}
+      else if (__imag__ x == M_LIT (0.0))
+	{
+	  res = x;
+	}
+      else
+	{
+	  __real__ res = M_NAN;
+	  __imag__ res = M_NAN;
+
+	  if (isinf (__imag__ x))
+	    feraiseexcept (FE_INVALID);
+	}
+    }
+  else
+    {
+      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 (M_FABS (__imag__ x) > M_MIN))
+	{
+	  M_SINCOS (__imag__ x, &sinix, &cosix);
+	}
+      else
+	{
+	  sinix = __imag__ x;
+	  cosix = M_LIT (1.0);
+	}
+
+      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).  */
+	  FLOAT exp_2t = M_EXP (2 * t);
+
+	  __real__ res = M_COPYSIGN (M_LIT (1.0), __real__ x);
+	  __imag__ res = 4 * sinix * cosix;
+	  __real__ x = M_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 /= M_EXP (2 * __real__ x);
+	}
+      else
+	{
+	  FLOAT sinhrx, coshrx;
+	  if (M_FABS (__real__ x) > M_MIN)
+	    {
+	      sinhrx = M_SINH (__real__ x);
+	      coshrx = M_COSH (__real__ x);
+	    }
+	  else
+	    {
+	      sinhrx = __real__ x;
+	      coshrx = M_LIT (1.0);
+	    }
+
+	  if (M_FABS (sinhrx) > M_FABS (cosix) * M_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;
+}
+
+declare_mgen_alias (__ctanh, ctanh)
+
+#if M_LIBM_NEED_COMPAT (ctanh)
+  declare_mgen_libm_compat (__ctanh, ctanh)
+#endif
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_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_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_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_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)
diff --git a/sysdeps/alpha/fpu/Makefile b/sysdeps/alpha/fpu/Makefile
index 3ae1451..d8ccf86 100644
--- a/sysdeps/alpha/fpu/Makefile
+++ b/sysdeps/alpha/fpu/Makefile
@@ -2,7 +2,7 @@ 
 # the respectic s_*.c versions here.
 libm-gen-calls-override = g_cabs_f g_carg_f g_cimag_f g_creal_f g_conj_f \
 	g_cacos_f g_cacosh_f g_ccos_f g_ccosh_f g_casin_f g_csin_f	 \
-	g_casinh_f g_csinh_f
-libm-gen-replacement-calls = cabsf cargf cimagf crealf conjf \
-	s_cacosf s_cacoshf s_ccosf s_ccoshf s_casinf s_csinf \
-	s_casinhf s_csinhf
+	g_casinh_f g_csinh_f g_catan_f g_catanh_f g_ctan_f g_ctanh_f
+libm-gen-replacement-calls = cabsf cargf cimagf crealf conjf	\
+	s_cacosf s_cacoshf s_ccosf s_ccoshf s_casinf s_csinf	\
+	s_casinhf s_csinhf s_catanf s_catanhf s_ctanf s_ctanhf
diff --git a/sysdeps/alpha/fpu/s_catanf.c b/sysdeps/alpha/fpu/s_catanf.c
index 76c1718..bc2b7eb 100644
--- a/sysdeps/alpha/fpu/s_catanf.c
+++ b/sysdeps/alpha/fpu/s_catanf.c
@@ -24,14 +24,19 @@ 
 
 #undef __catanf
 #undef catanf
-#define __catanf internal_catanf
 
 static _Complex float internal_catanf (_Complex float x);
 
-#include <math/s_catanf.c>
-#include "cfloat-compat.h"
+#define M_DECL_FUNC(f) internal_catanf
+#define M_TYPE M_FLOAT
+#include <math-type-macros.h>
 
-#undef __catanf
+/* Disable any aliasing from base template.  */
+#undef declare_mgen_alias
+#define declare_mgen_alias(__to, __from)
+
+#include <math/b_catan.c>
+#include "cfloat-compat.h"
 
 c1_cfloat_rettype
 __c1_catanf (c1_cfloat_decl (x))
diff --git a/sysdeps/alpha/fpu/s_catanhf.c b/sysdeps/alpha/fpu/s_catanhf.c
index 18148dd..46b73b6 100644
--- a/sysdeps/alpha/fpu/s_catanhf.c
+++ b/sysdeps/alpha/fpu/s_catanhf.c
@@ -24,14 +24,19 @@ 
 
 #undef __catanhf
 #undef catanhf
-#define __catanhf internal_catanhf
 
 static _Complex float internal_catanhf (_Complex float x);
 
-#include <math/s_catanhf.c>
-#include "cfloat-compat.h"
+#define M_DECL_FUNC(f) internal_catanhf
+#define M_TYPE M_FLOAT
+#include <math-type-macros.h>
 
-#undef __catanhf
+/* Disable any aliasing from base template.  */
+#undef declare_mgen_alias
+#define declare_mgen_alias(__to, __from)
+
+#include <math/b_catanh.c>
+#include "cfloat-compat.h"
 
 c1_cfloat_rettype
 __c1_catanhf (c1_cfloat_decl (x))
diff --git a/sysdeps/alpha/fpu/s_ctanf.c b/sysdeps/alpha/fpu/s_ctanf.c
index ee02f31..fe9b619 100644
--- a/sysdeps/alpha/fpu/s_ctanf.c
+++ b/sysdeps/alpha/fpu/s_ctanf.c
@@ -24,14 +24,19 @@ 
 
 #undef __ctanf
 #undef ctanf
-#define __ctanf internal_ctanf
 
 static _Complex float internal_ctanf (_Complex float x);
 
-#include <math/s_ctanf.c>
-#include "cfloat-compat.h"
+#define M_DECL_FUNC(f) internal_ctanf
+#define M_TYPE M_FLOAT
+#include <math-type-macros.h>
 
-#undef __ctanf
+/* Disable any aliasing from base template.  */
+#undef declare_mgen_alias
+#define declare_mgen_alias(__to, __from)
+
+#include <math/b_ctan.c>
+#include "cfloat-compat.h"
 
 c1_cfloat_rettype
 __c1_ctanf (c1_cfloat_decl (x))
diff --git a/sysdeps/alpha/fpu/s_ctanhf.c b/sysdeps/alpha/fpu/s_ctanhf.c
index cb99279..0d6e0dc 100644
--- a/sysdeps/alpha/fpu/s_ctanhf.c
+++ b/sysdeps/alpha/fpu/s_ctanhf.c
@@ -24,14 +24,19 @@ 
 
 #undef __ctanhf
 #undef ctanhf
-#define __ctanhf internal_ctanhf
 
 static _Complex float internal_ctanhf (_Complex float x);
 
-#include <math/s_ctanhf.c>
-#include "cfloat-compat.h"
+#define M_DECL_FUNC(f) internal_ctanhf
+#define M_TYPE M_FLOAT
+#include <math-type-macros.h>
 
-#undef __ctanhf
+/* Disable any aliasing from base template.  */
+#undef declare_mgen_alias
+#define declare_mgen_alias(__to, __from)
+
+#include <math/b_ctanh.c>
+#include "cfloat-compat.h"
 
 c1_cfloat_rettype
 __c1_ctanhf (c1_cfloat_decl (x))
diff --git a/sysdeps/ieee754/ldbl-opt/math-type-macros.h b/sysdeps/ieee754/ldbl-opt/math-type-macros.h
index 061ba33..646489e 100644
--- a/sysdeps/ieee754/ldbl-opt/math-type-macros.h
+++ b/sysdeps/ieee754/ldbl-opt/math-type-macros.h
@@ -15,5 +15,9 @@ 
 #define LDOUBLE_csinl_libm_version GLIBC_2_1
 #define LDOUBLE_casinhl_libm_version GLIBC_2_1
 #define LDOUBLE_csinhl_libm_version GLIBC_2_1
+#define LDOUBLE_catanl_libm_version GLIBC_2_1
+#define LDOUBLE_catanhl_libm_version GLIBC_2_1
+#define LDOUBLE_ctanl_libm_version GLIBC_2_1
+#define LDOUBLE_ctanhl_libm_version GLIBC_2_1
 
 #include_next <math-type-macros.h>
diff --git a/sysdeps/ieee754/ldbl-opt/s_catan.c b/sysdeps/ieee754/ldbl-opt/s_catan.c
deleted file mode 100644
index 19f6173..0000000
--- a/sysdeps/ieee754/ldbl-opt/s_catan.c
+++ /dev/null
@@ -1,6 +0,0 @@ 
-#include <complex.h>
-#include <math_ldbl_opt.h>
-#include <math/s_catan.c>
-#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
-compat_symbol (libm, __catan, catanl, GLIBC_2_1);
-#endif
diff --git a/sysdeps/ieee754/ldbl-opt/s_catanh.c b/sysdeps/ieee754/ldbl-opt/s_catanh.c
deleted file mode 100644
index cff7861..0000000
--- a/sysdeps/ieee754/ldbl-opt/s_catanh.c
+++ /dev/null
@@ -1,6 +0,0 @@ 
-#include <complex.h>
-#include <math_ldbl_opt.h>
-#include <math/s_catanh.c>
-#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
-compat_symbol (libm, __catanh, catanhl, GLIBC_2_1);
-#endif
diff --git a/sysdeps/ieee754/ldbl-opt/s_catanhl.c b/sysdeps/ieee754/ldbl-opt/s_catanhl.c
deleted file mode 100644
index e956282..0000000
--- a/sysdeps/ieee754/ldbl-opt/s_catanhl.c
+++ /dev/null
@@ -1,6 +0,0 @@ 
-#include <complex.h>
-#include <math_ldbl_opt.h>
-#undef weak_alias
-#define weak_alias(n,a)
-#include <math/s_catanhl.c>
-long_double_symbol (libm, __catanhl, catanhl);
diff --git a/sysdeps/ieee754/ldbl-opt/s_catanl.c b/sysdeps/ieee754/ldbl-opt/s_catanl.c
deleted file mode 100644
index ee2fdf5..0000000
--- a/sysdeps/ieee754/ldbl-opt/s_catanl.c
+++ /dev/null
@@ -1,6 +0,0 @@ 
-#include <complex.h>
-#include <math_ldbl_opt.h>
-#undef weak_alias
-#define weak_alias(n,a)
-#include <math/s_catanl.c>
-long_double_symbol (libm, __catanl, catanl);
diff --git a/sysdeps/ieee754/ldbl-opt/s_ctan.c b/sysdeps/ieee754/ldbl-opt/s_ctan.c
deleted file mode 100644
index a6a21f9..0000000
--- a/sysdeps/ieee754/ldbl-opt/s_ctan.c
+++ /dev/null
@@ -1,6 +0,0 @@ 
-#include <complex.h>
-#include <math_ldbl_opt.h>
-#include <math/s_ctan.c>
-#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
-compat_symbol (libm, __ctan, ctanl, GLIBC_2_1);
-#endif
diff --git a/sysdeps/ieee754/ldbl-opt/s_ctanh.c b/sysdeps/ieee754/ldbl-opt/s_ctanh.c
deleted file mode 100644
index fd4be12..0000000
--- a/sysdeps/ieee754/ldbl-opt/s_ctanh.c
+++ /dev/null
@@ -1,6 +0,0 @@ 
-#include <complex.h>
-#include <math_ldbl_opt.h>
-#include <math/s_ctanh.c>
-#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
-compat_symbol (libm, __ctanh, ctanhl, GLIBC_2_1);
-#endif
diff --git a/sysdeps/ieee754/ldbl-opt/s_ctanhl.c b/sysdeps/ieee754/ldbl-opt/s_ctanhl.c
deleted file mode 100644
index f159373..0000000
--- a/sysdeps/ieee754/ldbl-opt/s_ctanhl.c
+++ /dev/null
@@ -1,6 +0,0 @@ 
-#include <complex.h>
-#include <math_ldbl_opt.h>
-#undef weak_alias
-#define weak_alias(n,a)
-#include <math/s_ctanhl.c>
-long_double_symbol (libm, __ctanhl, ctanhl);
diff --git a/sysdeps/ieee754/ldbl-opt/s_ctanl.c b/sysdeps/ieee754/ldbl-opt/s_ctanl.c
deleted file mode 100644
index 0c2d94c..0000000
--- a/sysdeps/ieee754/ldbl-opt/s_ctanl.c
+++ /dev/null
@@ -1,6 +0,0 @@ 
-#include <complex.h>
-#include <math_ldbl_opt.h>
-#undef weak_alias
-#define weak_alias(n,a)
-#include <math/s_ctanl.c>
-long_double_symbol (libm, __ctanl, ctanl);