Update.cvs/fedora-glibc-20050106T1443

2004-12-29  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/ia64/fpu/libm_support.h (__libm_error_support): Use
	libc_hidden_proto instead of HIDDEN_PROTO.
	* sysdeps/ia64/fpu/libm-symbols.h (HIDDEN_PROTO): Remove.
	(__libm_error_support): If ASSEMBLER and in libc, define to
	HIDDEN_JUMPTARGET(__libm_error_support).

2004-12-28  David Mosberger  <davidm@hpl.hp.com>

	* sysdeps/ia64/fpu/Makefile (duplicated-routines): New macro.
	(sysdep_routines): Replace libm_ldexp{,f,l} and libm_scalbn{,f,l}
	with $(duplicated-routines).
	(libm-sysdep_routines): Likewise, but substitute "s_" prefix for
	"m_" prefix.

2004-12-27  David Mosberger  <davidm@hpl.hp.com>

	* sysdeps/ia64/fpu/libm-symbols.h: Add include of <sysdep.h> and
	undefine "ret" macro.  Add __libm_error_support hidden definitions.

	* sysdeps/ia64/fpu/e_lgamma_r.c: Remove CVS-id comment.  Add
	missing portion of copyright statement.
	* sysdeps/ia64/fpu/e_lgammaf_r.c: Likewise.
	* sysdeps/ia64/fpu/e_lgammal_r.c: Likewise.

	* sysdeps/ia64/fpu/w_lgamma.c: Remove CVS-id comment.  Add
	missing portion of copyright statement.
	(__ieee754_lgamma): Rename from lgamma().  Make lgamma() a weak alias.
	(__ieee754_gamma): Likewise.
	* sysdeps/ia64/fpu/w_lgammaf.c: Likewise.
	* sysdeps/ia64/fpu/w_lgammal.c: Likewise.

2004-12-09  H. J. Lu <hjl@lucon.org>

	* sysdeps/ia64/fpu/s_nextafterl.c: Remove.
	* sysdeps/ia64/fpu/s_nexttoward.c: Likewise.
	* sysdeps/ia64/fpu/s_nexttowardf.c: Likewise.
	* sysdeps/ia64/fpu/e_atan2l.S: Remove (duplicate of e_atan2l.c).
	* sysdeps/ia64/fpu/e_expl.S: Likewise.
	* sysdeps/ia64/fpu/e_logl.c: Remove (conflicts with e_logl.S).

2004-11-18  David Mosberger  <davidm@hpl.hp.com>

	* sysdeps/ia64/fpu/README: New file.
	* sysdeps/ia64/fpu/gen_import_file_list: New file.
	* sysdeps/ia64/fpu/import_check: Likewise.
	* sysdeps/ia64/fpu/import_diffs: Likewise.
	* sysdeps/ia64/fpu/import_file.awk: Likewise.
	* sysdeps/ia64/fpu/import_intel_libm: Likewise.
	* sysdeps/ia64/fpu/libm-symbols.h: Likewise.

	* sysdeps/ia64/fpu/e_acos.S: Update from Intel libm v2.1+.
	* sysdeps/ia64/fpu/e_acosf.S: Likewise.
	* sysdeps/ia64/fpu/e_acosl.S: Likewise.
	* sysdeps/ia64/fpu/e_asin.S: Likewise.
	* sysdeps/ia64/fpu/e_asinf.S: Likewise.
	* sysdeps/ia64/fpu/e_asinl.S: Likewise.
	* sysdeps/ia64/fpu/e_atan2.S: Likewise.
	* sysdeps/ia64/fpu/e_atan2f.S: Likewise.
	* sysdeps/ia64/fpu/e_cosh.S: Likewise.
	* sysdeps/ia64/fpu/e_coshf.S: Likewise.
	* sysdeps/ia64/fpu/e_coshl.S: Likewise.
	* sysdeps/ia64/fpu/e_exp.S: Likewise.
	* sysdeps/ia64/fpu/e_expf.S: Likewise.
	* sysdeps/ia64/fpu/e_fmod.S: Likewise.
	* sysdeps/ia64/fpu/e_fmodf.S: Likewise.
	* sysdeps/ia64/fpu/e_fmodl.S: Likewise.
	* sysdeps/ia64/fpu/e_hypot.S: Likewise.
	* sysdeps/ia64/fpu/e_hypotf.S: Likewise.
	* sysdeps/ia64/fpu/e_hypotl.S: Likewise.
	* sysdeps/ia64/fpu/e_log.S: Likewise.
	* sysdeps/ia64/fpu/e_log2.S: Likewise.
	* sysdeps/ia64/fpu/e_log2f.S: Likewise.
	* sysdeps/ia64/fpu/e_log2l.S: Likewise.
	* sysdeps/ia64/fpu/e_logf.S: Likewise.
	* sysdeps/ia64/fpu/e_pow.S: Likewise.
	* sysdeps/ia64/fpu/e_powf.S: Likewise.
	* sysdeps/ia64/fpu/e_powl.S: Likewise.
	* sysdeps/ia64/fpu/e_remainder.S: Likewise.
	* sysdeps/ia64/fpu/e_remainderf.S: Likewise.
	* sysdeps/ia64/fpu/e_remainderl.S: Likewise.
	* sysdeps/ia64/fpu/e_scalb.S: Likewise.
	* sysdeps/ia64/fpu/e_scalbf.S: Likewise.
	* sysdeps/ia64/fpu/e_scalbl.S: Likewise.
	* sysdeps/ia64/fpu/e_sinh.S: Likewise.
	* sysdeps/ia64/fpu/e_sinhf.S: Likewise.
	* sysdeps/ia64/fpu/e_sinhl.S: Likewise.
	* sysdeps/ia64/fpu/e_sqrt.S: Likewise.
	* sysdeps/ia64/fpu/e_sqrtf.S: Likewise.
	* sysdeps/ia64/fpu/e_sqrtl.S: Likewise.
	* sysdeps/ia64/fpu/libm_error.c: Likewise.
	* sysdeps/ia64/fpu/libm_reduce.c: Likewise.
	* sysdeps/ia64/fpu/libm_support.h: Likewise.
	* sysdeps/ia64/fpu/s_atan.S: Likewise.
	* sysdeps/ia64/fpu/s_atanf.S: Likewise.
	* sysdeps/ia64/fpu/s_atanl.S: Likewise.
	* sysdeps/ia64/fpu/s_cbrt.S: Likewise.
	* sysdeps/ia64/fpu/s_cbrtf.S: Likewise.
	* sysdeps/ia64/fpu/s_cbrtl.S: Likewise.
	* sysdeps/ia64/fpu/s_ceil.S: Likewise.
	* sysdeps/ia64/fpu/s_ceilf.S: Likewise.
	* sysdeps/ia64/fpu/s_ceill.S: Likewise.
	* sysdeps/ia64/fpu/s_cos.S: Likewise.
	* sysdeps/ia64/fpu/s_cosf.S: Likewise.
	* sysdeps/ia64/fpu/s_cosl.S: Likewise.
	* sysdeps/ia64/fpu/s_expm1.S: Likewise.
	* sysdeps/ia64/fpu/s_expm1f.S: Likewise.
	* sysdeps/ia64/fpu/s_expm1l.S: Likewise.
	* sysdeps/ia64/fpu/s_fabs.S: Likewise.
	* sysdeps/ia64/fpu/s_fabsf.S: Likewise.
	* sysdeps/ia64/fpu/s_fabsl.S: Likewise.
	* sysdeps/ia64/fpu/s_floor.S: Likewise.
	* sysdeps/ia64/fpu/s_floorf.S: Likewise.
	* sysdeps/ia64/fpu/s_floorl.S: Likewise.
	* sysdeps/ia64/fpu/s_frexp.c: Likewise.
	* sysdeps/ia64/fpu/s_frexpf.c: Likewise.
	* sysdeps/ia64/fpu/s_frexpl.c: Likewise.
	* sysdeps/ia64/fpu/s_ilogb.S: Likewise.
	* sysdeps/ia64/fpu/s_ilogbf.S: Likewise.
	* sysdeps/ia64/fpu/s_ilogbl.S: Likewise.
	* sysdeps/ia64/fpu/s_log1p.S: Likewise.
	* sysdeps/ia64/fpu/s_log1pf.S: Likewise.
	* sysdeps/ia64/fpu/s_log1pl.S: Likewise.
	* sysdeps/ia64/fpu/s_logb.S: Likewise.
	* sysdeps/ia64/fpu/s_logbf.S: Likewise.
	* sysdeps/ia64/fpu/s_logbl.S: Likewise.
	* sysdeps/ia64/fpu/s_modf.S: Likewise.
	* sysdeps/ia64/fpu/s_modff.S: Likewise.
	* sysdeps/ia64/fpu/s_modfl.S: Likewise.
	* sysdeps/ia64/fpu/s_nearbyint.S: Likewise.
	* sysdeps/ia64/fpu/s_nearbyintf.S: Likewise.
	* sysdeps/ia64/fpu/s_nearbyintl.S: Likewise.
	* sysdeps/ia64/fpu/s_rint.S: Likewise.
	* sysdeps/ia64/fpu/s_rintf.S: Likewise.
	* sysdeps/ia64/fpu/s_rintl.S: Likewise.
	* sysdeps/ia64/fpu/s_round.S: Likewise.
	* sysdeps/ia64/fpu/s_roundf.S: Likewise.
	* sysdeps/ia64/fpu/s_roundl.S: Likewise.
	* sysdeps/ia64/fpu/s_significand.S: Likewise.
	* sysdeps/ia64/fpu/s_significandf.S: Likewise.
	* sysdeps/ia64/fpu/s_significandl.S: Likewise.
	* sysdeps/ia64/fpu/s_tan.S: Likewise.
	* sysdeps/ia64/fpu/s_tanf.S: Likewise.
	* sysdeps/ia64/fpu/s_tanl.S: Likewise.
	* sysdeps/ia64/fpu/s_trunc.S: Likewise.
	* sysdeps/ia64/fpu/s_truncf.S: Likewise.
	* sysdeps/ia64/fpu/s_truncl.S: Likewise.

	* sysdeps/ia64/fpu/e_acosh.S: New file from Intel libm v2.1+.
	* sysdeps/ia64/fpu/e_acoshf.S: Likewise.
	* sysdeps/ia64/fpu/e_acoshl.S: Likewise.
	* sysdeps/ia64/fpu/e_atanh.S: Likewise.
	* sysdeps/ia64/fpu/e_atanhf.S: Likewise.
	* sysdeps/ia64/fpu/e_atanhl.S: Likewise.
	* sysdeps/ia64/fpu/e_exp10.S: Likewise.
	* sysdeps/ia64/fpu/e_exp10f.S: Likewise.
	* sysdeps/ia64/fpu/e_exp10l.S: Likewise.
	* sysdeps/ia64/fpu/e_exp2.S: Likewise.
	* sysdeps/ia64/fpu/e_exp2f.S: Likewise.
	* sysdeps/ia64/fpu/e_exp2l.S: Likewise.
	* sysdeps/ia64/fpu/e_lgamma_r.S: Likewise.
	* sysdeps/ia64/fpu/e_lgammaf_r.S: Likewise.
	* sysdeps/ia64/fpu/e_lgammal_r.S: Likewise.
	* sysdeps/ia64/fpu/e_logl.S: Likewise.
	* sysdeps/ia64/fpu/libm_frexp.S: Likewise.
	* sysdeps/ia64/fpu/libm_frexpf.S: Likewise.
	* sysdeps/ia64/fpu/libm_frexpl.S: Likewise.
	* sysdeps/ia64/fpu/s_libm_ldexp.S: Likewise.
	* sysdeps/ia64/fpu/s_libm_ldexpf.S: Likewise.
	* sysdeps/ia64/fpu/s_libm_ldexpl.S: Likewise.
	* sysdeps/ia64/fpu/s_libm_scalbn.S: Likewise.
	* sysdeps/ia64/fpu/s_libm_scalbnf.S: Likewise.
	* sysdeps/ia64/fpu/s_libm_scalbnl.S: Likewise.
	* sysdeps/ia64/fpu/libm_lgamma.S: Likewise.
	* sysdeps/ia64/fpu/libm_lgammaf.S: Likewise.
	* sysdeps/ia64/fpu/libm_lgammal.S: Likewise.
	* sysdeps/ia64/fpu/libm_sincos.S: Likewise.
	* sysdeps/ia64/fpu/libm_sincos_large.S: Likewise.
	* sysdeps/ia64/fpu/libm_sincosf.S: Likewise.
	* sysdeps/ia64/fpu/libm_sincosl.S: Likewise.
	* sysdeps/ia64/fpu/libm_scalblnf.S: Likewise.
	* sysdeps/ia64/fpu/s_asinh.S: Likewise.
	* sysdeps/ia64/fpu/s_asinhf.S: Likewise.
	* sysdeps/ia64/fpu/s_asinhl.S: Likewise.
	* sysdeps/ia64/fpu/s_erf.S: Likewise.
	* sysdeps/ia64/fpu/s_erfc.S: Likewise.
	* sysdeps/ia64/fpu/s_erfcf.S: Likewise.
	* sysdeps/ia64/fpu/s_erfcl.S: Likewise.
	* sysdeps/ia64/fpu/s_erff.S: Likewise.
	* sysdeps/ia64/fpu/s_erfl.S: Likewise.
	* sysdeps/ia64/fpu/s_fdim.S: Likewise.
	* sysdeps/ia64/fpu/s_fdimf.S: Likewise.
	* sysdeps/ia64/fpu/s_fdiml.S: Likewise.
	* sysdeps/ia64/fpu/s_fma.S: Likewise.
	* sysdeps/ia64/fpu/s_fmaf.S: Likewise.
	* sysdeps/ia64/fpu/s_fmal.S: Likewise.
	* sysdeps/ia64/fpu/s_fmax.S: Likewise.
	* sysdeps/ia64/fpu/s_fmaxf.S: Likewise.
	* sysdeps/ia64/fpu/s_fmaxl.S: Likewise.
	* sysdeps/ia64/fpu/s_ldexp.c: Likewise.
	* sysdeps/ia64/fpu/s_ldexpf.c: Likewise.
	* sysdeps/ia64/fpu/s_ldexpl.c: Likewise.
	* sysdeps/ia64/fpu/s_nextafter.S: Likewise.
	* sysdeps/ia64/fpu/s_nextafterf.S: Likewise.
	* sysdeps/ia64/fpu/s_nextafterl.S: Likewise.
	* sysdeps/ia64/fpu/s_nexttoward.S: Likewise.
	* sysdeps/ia64/fpu/s_nexttowardf.S: Likewise.
	* sysdeps/ia64/fpu/s_nexttowardl.S: Likewise.
	* sysdeps/ia64/fpu/s_tanh.S: Likewise.
	* sysdeps/ia64/fpu/s_tanhf.S: Likewise.
	* sysdeps/ia64/fpu/s_tanhl.S: Likewise.
	* sysdeps/ia64/fpu/s_scalblnf.c: Likewise.
	* sysdeps/ia64/fpu/w_lgamma.c: Likewise.
	* sysdeps/ia64/fpu/w_lgammaf.c: Likewise.
	* sysdeps/ia64/fpu/w_lgammal.c: Likewise.
	* sysdeps/ia64/fpu/w_tgamma.S: Likewise.
	* sysdeps/ia64/fpu/w_tgammaf.S: Likewise.
	* sysdeps/ia64/fpu/w_tgammal.S: Likewise.

	* sysdeps/ia64/fpu/e_gamma_r.c: New empty dummy-file.
	* sysdeps/ia64/fpu/e_gammaf_r.c: Likewise.
	* sysdeps/ia64/fpu/e_gammal_r.c: Likewise.
	* sysdeps/ia64/fpu/w_acosh.c: Likewise.
	* sysdeps/ia64/fpu/w_acoshf.c: Likewise.
	* sysdeps/ia64/fpu/w_acoshl.c: Likewise.
	* sysdeps/ia64/fpu/w_atanh.c: Likewise.
	* sysdeps/ia64/fpu/w_atanhf.c: Likewise.
	* sysdeps/ia64/fpu/w_atanhl.c: Likewise.
	* sysdeps/ia64/fpu/w_exp10.c: Likewise.
	* sysdeps/ia64/fpu/w_exp10f.c: Likewise.
	* sysdeps/ia64/fpu/w_exp10l.c: Likewise.
	* sysdeps/ia64/fpu/w_exp2.c: Likewise.
	* sysdeps/ia64/fpu/w_exp2f.c: Likewise.
	* sysdeps/ia64/fpu/w_exp2l.c: Likewise.
	* sysdeps/ia64/fpu/w_expl.c: Likewise.
	* sysdeps/ia64/fpu/e_expl.S: Likewise.
	* sysdeps/ia64/fpu/w_lgamma_r.c: Likewise.
	* sysdeps/ia64/fpu/w_lgammaf_r.c: Likewise.
	* sysdeps/ia64/fpu/w_lgammal_r.c: Likewise.
	* sysdeps/ia64/fpu/w_log2.c: Likewise.
	* sysdeps/ia64/fpu/w_log2f.c: Likewise.
	* sysdeps/ia64/fpu/w_log2l.c: Likewise.
	* sysdeps/ia64/fpu/w_sinh.c: Likewise.
	* sysdeps/ia64/fpu/w_sinhf.c: Likewise.
	* sysdeps/ia64/fpu/w_sinhl.c: Likewise.

	* sysdeps/ia64/fpu/libm_atan2_reg.S: Remove.
	* sysdeps/ia64/fpu/s_ldexp.S: Likewise.
	* sysdeps/ia64/fpu/s_ldexpf.S: Likewise.
	* sysdeps/ia64/fpu/s_ldexpl.S: Likewise.
	* sysdeps/ia64/fpu/s_scalbn.S: Likewise.
	* sysdeps/ia64/fpu/s_scalbnf.S: Likewise.
	* sysdeps/ia64/fpu/s_scalbnl.S: Likewise.

	* sysdeps/ia64/fpu/s_sincos.c: Make it an empty dummy-file.
	* sysdeps/ia64/fpu/s_sincosf.c: Likewise.
	* sysdeps/ia64/fpu/s_sincosl.c: Likewise.

	* sysdeps/ia64/fpu/e_atan2l.S: Add "Not needed" comment.

	* sysdeps/ia64/fpu/s_copysign.S: Add __libm_copysign{,f,l}
	alias for use by libm_error.c

	* sysdeps/ia64/fpu/Makefile (libm-sysdep_routines): Remove
	libm_atan2_reg, libm_tan, libm_frexp4{f,l}.
	Mention s_erfc{,f,l}, libm_frexp{,f,l}, libm_ldexp{,f,l},
	libm_sincos{,f,l}, libm_sincos_large, libm_lgamma{,f,l},
	libm_scalbn{,f,l}, libm_scalblnf.
	(sysdep_routines): Remove libm_frexp4{,f,l}.
	Mention libm_frexp{,f,l}, libm_ldexp{,f,l}, and libm_scalbn{,f,l}.
	(sysdep-CPPFLAGS): Add -include libm-symbols.h, -D__POSIX__,
	_D_LIB_VERSIONIMF=_LIB_VERSION, -DSIZE_LONG_INT_64, and
	-DSIZE_LONG_LONG_INT_64.

1 files changed, 1069 insertions, 0 deletions

diff --git a/sysdeps/ia64/fpu/e_atanh.S b/sysdeps/ia64/fpu/e_atanh.S
new file mode 100644
index 0000000000..7ddc3e3023
--- /dev/null
+++ b/sysdeps/ia64/fpu/e_atanh.S
@@ -0,0 +1,1069 @@
+.file "atanh.s"
+
+
+// Copyright (c) 2000 - 2003, Intel Corporation
+// All rights reserved.
+//
+// Contributed 2000 by the Intel Numerics Group, Intel Corporation
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+//
+// * The name of Intel Corporation may not be used to endorse or promote
+// products derived from this software without specific prior written
+// permission.
+
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS
+// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING
+// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Intel Corporation is the author of this code, and requests that all
+// problem reports or change requests be submitted to it directly at
+// http://www.intel.com/software/products/opensource/libraries/num.htm.
+//
+// ==============================================================
+// History
+// ==============================================================
+// 05/03/01  Initial version
+// 05/20/02  Cleaned up namespace and sf0 syntax
+// 02/06/03  Reordered header: .section, .global, .proc, .align
+// 05/26/03  Improved performance, fixed to handle unorms
+//
+// API
+// ==============================================================
+// double atanh(double)
+//
+// Overview of operation
+// ==============================================================
+//
+// There are 7 paths:
+// 1. x = +/-0.0
+//    Return atanh(x) = +/-0.0
+//
+// 2. 0.0 < |x| < 1/4
+//    Return atanh(x) = Po2l(x),
+//    where Po2l(x) = (((((((((C9*x^2 + C8)*x^2 + C7)*x^2 + C6)*x^2 +
+//          C5)*x^2 + C4)*x^2 + C3)*x^2 + C2)*x^2 + C1)* x^2 + C0)*x^3 + x
+// 3. 1/4 <= |x| < 1
+//    Return atanh(x) = sign(x) * log((1 + |x|)/(1 - |x|))
+//    To compute (1 + |x|)/(1 - |x|) modified Newton Raphson method is used
+//    (3 iterations)
+//    Algorithm description for log function see below.
+//
+// 4. |x| = 1
+//    Return atanh(x) = sign(x) * +INF
+//
+// 5. 1 < |x| <= +INF
+//    Return atanh(x) = QNaN
+//
+// 6. x = [S,Q]NaN
+//    Return atanh(x) = QNaN
+//
+// 7. x = denormal
+//    Return atanh(x) = x
+//
+//==============================================================
+// Algorithm Description for log(x) function
+// Below we are using the fact that inequality x - 1.0 > 2^(-6) is always true
+// for this atanh implementation
+//
+// Consider  x = 2^N 1.f1 f2 f3 f4...f63
+// Log(x) = log(x * frcpa(x) / frcpa(x))
+//        = log(x * frcpa(x)) + log(1/frcpa(x))
+//        = log(x * frcpa(x)) - log(frcpa(x))
+//
+// frcpa(x)       = 2^-N * frcpa(1.f1 f2 ... f63)
+//
+// -log(frcpa(x)) = -log(C)
+//                = -log(2^-N) - log(frcpa(1.f1 f2 ... f63))
+//
+// -log(frcpa(x)) = -log(C)
+//                = N*log2 - log(frcpa(1.f1 f2 ... f63))
+//
+//
+// Log(x) = log(1/frcpa(x)) + log(frcpa(x) x)
+//
+// Log(x) = N*log2 + log(1./frcpa(1.f1 f2 ... f63)) + log(x * frcpa(x))
+// Log(x) = N*log2 + T                              + log(frcpa(x) x)
+//
+// Log(x) = N*log2 + T                              + log(C * x)
+//
+// C * x = 1 + r
+//
+// Log(x) = N*log2 + T + log(1 + r)
+// Log(x) = N*log2 + T + Series(r - r^2/2 + r^3/3 - r^4/4 + ...)
+//
+// 1.f1 f2 ... f8 has 256 entries.
+// They are 1 + k/2^8, k = 0 ... 255
+// These 256 values are the table entries.
+//
+// Implementation
+//==============================================================
+// C = frcpa(x)
+// r = C * x - 1
+//
+// Form rseries = r + P1*r^2 + P2*r^3 + P3*r^4 + P4*r^5 + P5*r^6
+//
+// x = f * 2*N where f is 1.f_1f_2f_3...f_63
+// Nfloat = float(n)  where n is the true unbiased exponent
+// pre-index = f_1f_2....f_8
+// index = pre_index * 16
+// get the dxt table entry at index + offset = T
+//
+// result = (T + Nfloat * log(2)) + rseries
+//
+// The T table is calculated as follows
+// Form x_k = 1 + k/2^8 where k goes from 0... 255
+//      y_k = frcpa(x_k)
+//      log(1/y_k)  in quad and round to double-extended
+//
+//
+// Registers used
+//==============================================================
+// Floating Point registers used:
+// f8, input
+// f32 -> f77
+
+// General registers used:
+// r14 -> r27, r33 -> r39
+
+// Predicate registers used:
+// p6 -> p14
+
+// p10, p11      to indicate is argument positive or negative
+// p12           to filter out case when x = [Q,S]NaN or +/-0
+// p13           to filter out case when x = denormal
+// p6, p7        to filter out case when |x| >= 1
+// p8            to filter out case when |x| < 1/4
+
+// Assembly macros
+//==============================================================
+Data2Ptr              = r14
+Data3Ptr              = r15
+RcpTablePtr           = r16
+rExpbMask             = r17
+rBias                 = r18
+rNearZeroBound        = r19
+rArgSExpb             = r20
+rArgExpb              = r21
+rSExpb                = r22
+rExpb                 = r23
+rSig                  = r24
+rN                    = r25
+rInd                  = r26
+DataPtr               = r27
+
+GR_SAVE_B0            = r33
+GR_SAVE_GP            = r34
+GR_SAVE_PFS           = r35
+
+GR_Parameter_X        = r36
+GR_Parameter_Y        = r37
+GR_Parameter_RESULT   = r38
+atanh_GR_tag          = r39
+
+//==============================================================
+fAbsX                 = f32
+fOneMx                = f33
+fOnePx                = f34
+fY                    = f35
+fR                    = f36
+fR2                   = f37
+fR3                   = f38
+fRcp                  = f39
+fY4Rcp                = f40
+fRcp0                 = f41
+fRcp0n                = f42
+fRcp1                 = f43
+fRcp2                 = f44
+fRcp3                 = f45
+fN4Cvt                = f46
+fN                    = f47
+fY2                   = f48
+fLog2                 = f49
+fLogT                 = f50
+fLogT_N               = f51
+fX2                   = f52
+fX3                   = f53
+fX4                   = f54
+fX8                   = f55
+fP0                   = f56
+fP5                   = f57
+fP4                   = f58
+fP3                   = f59
+fP2                   = f60
+fP1                   = f61
+fNormX                = f62
+fC9                   = f63
+fC8                   = f64
+fC7                   = f65
+fC6                   = f66
+fC5                   = f67
+fC4                   = f68
+fC3                   = f69
+fC2                   = f70
+fC1                   = f71
+fC0                   = f72
+fP98                  = f73
+fP76                  = f74
+fP54                  = f75
+fP32                  = f76
+fP10                  = f77
+
+// Data tables
+//==============================================================
+RODATA
+.align 16
+
+LOCAL_OBJECT_START(atanh_data)
+data8 0xBFC5555DA7212371              //   P5
+data8 0x3FC999A19EEF5826              //   P4
+data8 0xBFCFFFFFFFFEF009              //   P3
+data8 0x3FD555555554ECB2              //   P2
+data8 0xBFE0000000000000              //   P1 = -0.5
+data8 0x0000000000000000              //   pad
+data8 0xb17217f7d1cf79ac , 0x00003ffd //   0.5*log(2)
+data8 0x0000000000000000 , 0x00000000 //   pad to eliminate bank conflicts
+LOCAL_OBJECT_END(atanh_data)
+
+LOCAL_OBJECT_START(atanh_data_2)
+data8 0x8649FB89D3AD51FB , 0x00003FFB //   C9
+data8 0xCC10AABEF160077A , 0x00003FFA //   C8
+data8 0xF1EDB99AC0819CE2 , 0x00003FFA //   C7
+data8 0x8881E53A809AD24D , 0x00003FFB //   C6
+data8 0x9D8A116EF212F271 , 0x00003FFB //   C5
+data8 0xBA2E8A6D1D756453 , 0x00003FFB //   C4
+data8 0xE38E38E7A0945692 , 0x00003FFB //   C3
+data8 0x924924924536891A , 0x00003FFC //   C2
+data8 0xCCCCCCCCCCD08D51 , 0x00003FFC //   C1
+data8 0xAAAAAAAAAAAAAA0C , 0x00003FFD //   C0
+LOCAL_OBJECT_END(atanh_data_2)
+
+
+LOCAL_OBJECT_START(atanh_data_3)
+data8 0x80200aaeac44ef38 , 0x00003ff5 //   log(1/frcpa(1+0/2^-8))/2
+//
+data8 0xc09090a2c35aa070 , 0x00003ff6 //   log(1/frcpa(1+1/2^-8))/2
+data8 0xa0c94fcb41977c75 , 0x00003ff7 //   log(1/frcpa(1+2/2^-8))/2
+data8 0xe18b9c263af83301 , 0x00003ff7 //   log(1/frcpa(1+3/2^-8))/2
+data8 0x8d35c8d6399c30ea , 0x00003ff8 //   log(1/frcpa(1+4/2^-8))/2
+data8 0xadd4d2ecd601cbb8 , 0x00003ff8 //   log(1/frcpa(1+5/2^-8))/2
+//
+data8 0xce95403a192f9f01 , 0x00003ff8 //   log(1/frcpa(1+6/2^-8))/2
+data8 0xeb59392cbcc01096 , 0x00003ff8 //   log(1/frcpa(1+7/2^-8))/2
+data8 0x862c7d0cefd54c5d , 0x00003ff9 //   log(1/frcpa(1+8/2^-8))/2
+data8 0x94aa63c65e70d499 , 0x00003ff9 //   log(1/frcpa(1+9/2^-8))/2
+data8 0xa54a696d4b62b382 , 0x00003ff9 //   log(1/frcpa(1+10/2^-8))/2
+//
+data8 0xb3e4a796a5dac208 , 0x00003ff9 //   log(1/frcpa(1+11/2^-8))/2
+data8 0xc28c45b1878340a9 , 0x00003ff9 //   log(1/frcpa(1+12/2^-8))/2
+data8 0xd35c55f39d7a6235 , 0x00003ff9 //   log(1/frcpa(1+13/2^-8))/2
+data8 0xe220f037b954f1f5 , 0x00003ff9 //   log(1/frcpa(1+14/2^-8))/2
+data8 0xf0f3389b036834f3 , 0x00003ff9 //   log(1/frcpa(1+15/2^-8))/2
+//
+data8 0xffd3488d5c980465 , 0x00003ff9 //   log(1/frcpa(1+16/2^-8))/2
+data8 0x87609ce2ed300490 , 0x00003ffa //   log(1/frcpa(1+17/2^-8))/2
+data8 0x8ede9321e8c85927 , 0x00003ffa //   log(1/frcpa(1+18/2^-8))/2
+data8 0x96639427f2f8e2f4 , 0x00003ffa //   log(1/frcpa(1+19/2^-8))/2
+data8 0x9defad3e8f73217b , 0x00003ffa //   log(1/frcpa(1+20/2^-8))/2
+//
+data8 0xa582ebd50097029c , 0x00003ffa //   log(1/frcpa(1+21/2^-8))/2
+data8 0xac06dbe75ab80fee , 0x00003ffa //   log(1/frcpa(1+22/2^-8))/2
+data8 0xb3a78449b2d3ccca , 0x00003ffa //   log(1/frcpa(1+23/2^-8))/2
+data8 0xbb4f79635ab46bb2 , 0x00003ffa //   log(1/frcpa(1+24/2^-8))/2
+data8 0xc2fec93a83523f3f , 0x00003ffa //   log(1/frcpa(1+25/2^-8))/2
+//
+data8 0xc99af2eaca4c4571 , 0x00003ffa //   log(1/frcpa(1+26/2^-8))/2
+data8 0xd1581106472fa653 , 0x00003ffa //   log(1/frcpa(1+27/2^-8))/2
+data8 0xd8002560d4355f2e , 0x00003ffa //   log(1/frcpa(1+28/2^-8))/2
+data8 0xdfcb43b4fe508632 , 0x00003ffa //   log(1/frcpa(1+29/2^-8))/2
+data8 0xe67f6dff709d4119 , 0x00003ffa //   log(1/frcpa(1+30/2^-8))/2
+//
+data8 0xed393b1c22351280 , 0x00003ffa //   log(1/frcpa(1+31/2^-8))/2
+data8 0xf5192bff087bcc35 , 0x00003ffa //   log(1/frcpa(1+32/2^-8))/2
+data8 0xfbdf4ff6dfef2fa3 , 0x00003ffa //   log(1/frcpa(1+33/2^-8))/2
+data8 0x81559a97f92f9cc7 , 0x00003ffb //   log(1/frcpa(1+34/2^-8))/2
+data8 0x84be72bce90266e8 , 0x00003ffb //   log(1/frcpa(1+35/2^-8))/2
+//
+data8 0x88bc74113f23def2 , 0x00003ffb //   log(1/frcpa(1+36/2^-8))/2
+data8 0x8c2ba3edf6799d11 , 0x00003ffb //   log(1/frcpa(1+37/2^-8))/2
+data8 0x8f9dc92f92ea08b1 , 0x00003ffb //   log(1/frcpa(1+38/2^-8))/2
+data8 0x9312e8f36efab5a7 , 0x00003ffb //   log(1/frcpa(1+39/2^-8))/2
+data8 0x968b08643409ceb6 , 0x00003ffb //   log(1/frcpa(1+40/2^-8))/2
+//
+data8 0x9a062cba08a1708c , 0x00003ffb //   log(1/frcpa(1+41/2^-8))/2
+data8 0x9d845b3abf95485c , 0x00003ffb //   log(1/frcpa(1+42/2^-8))/2
+data8 0xa06fd841bc001bb4 , 0x00003ffb //   log(1/frcpa(1+43/2^-8))/2
+data8 0xa3f3a74652fbe0db , 0x00003ffb //   log(1/frcpa(1+44/2^-8))/2
+data8 0xa77a8fb2336f20f5 , 0x00003ffb //   log(1/frcpa(1+45/2^-8))/2
+//
+data8 0xab0497015d28b0a0 , 0x00003ffb //   log(1/frcpa(1+46/2^-8))/2
+data8 0xae91c2be6ba6a615 , 0x00003ffb //   log(1/frcpa(1+47/2^-8))/2
+data8 0xb189d1b99aebb20b , 0x00003ffb //   log(1/frcpa(1+48/2^-8))/2
+data8 0xb51cced5de9c1b2c , 0x00003ffb //   log(1/frcpa(1+49/2^-8))/2
+data8 0xb819bee9e720d42f , 0x00003ffb //   log(1/frcpa(1+50/2^-8))/2
+//
+data8 0xbbb2a0947b093a5d , 0x00003ffb //   log(1/frcpa(1+51/2^-8))/2
+data8 0xbf4ec1505811684a , 0x00003ffb //   log(1/frcpa(1+52/2^-8))/2
+data8 0xc2535bacfa8975ff , 0x00003ffb //   log(1/frcpa(1+53/2^-8))/2
+data8 0xc55a3eafad187eb8 , 0x00003ffb //   log(1/frcpa(1+54/2^-8))/2
+data8 0xc8ff2484b2c0da74 , 0x00003ffb //   log(1/frcpa(1+55/2^-8))/2
+//
+data8 0xcc0b1a008d53ab76 , 0x00003ffb //   log(1/frcpa(1+56/2^-8))/2
+data8 0xcfb6203844b3209b , 0x00003ffb //   log(1/frcpa(1+57/2^-8))/2
+data8 0xd2c73949a47a19f5 , 0x00003ffb //   log(1/frcpa(1+58/2^-8))/2
+data8 0xd5daae18b49d6695 , 0x00003ffb //   log(1/frcpa(1+59/2^-8))/2
+data8 0xd8f08248cf7e8019 , 0x00003ffb //   log(1/frcpa(1+60/2^-8))/2
+//
+data8 0xdca7749f1b3e540e , 0x00003ffb //   log(1/frcpa(1+61/2^-8))/2
+data8 0xdfc28e033aaaf7c7 , 0x00003ffb //   log(1/frcpa(1+62/2^-8))/2
+data8 0xe2e012a5f91d2f55 , 0x00003ffb //   log(1/frcpa(1+63/2^-8))/2
+data8 0xe600064ed9e292a8 , 0x00003ffb //   log(1/frcpa(1+64/2^-8))/2
+data8 0xe9226cce42b39f60 , 0x00003ffb //   log(1/frcpa(1+65/2^-8))/2
+//
+data8 0xec4749fd97a28360 , 0x00003ffb //   log(1/frcpa(1+66/2^-8))/2
+data8 0xef6ea1bf57780495 , 0x00003ffb //   log(1/frcpa(1+67/2^-8))/2
+data8 0xf29877ff38809091 , 0x00003ffb //   log(1/frcpa(1+68/2^-8))/2
+data8 0xf5c4d0b245cb89be , 0x00003ffb //   log(1/frcpa(1+69/2^-8))/2
+data8 0xf8f3afd6fcdef3aa , 0x00003ffb //   log(1/frcpa(1+70/2^-8))/2
+//
+data8 0xfc2519756be1abc7 , 0x00003ffb //   log(1/frcpa(1+71/2^-8))/2
+data8 0xff59119f503e6832 , 0x00003ffb //   log(1/frcpa(1+72/2^-8))/2
+data8 0x8147ce381ae0e146 , 0x00003ffc //   log(1/frcpa(1+73/2^-8))/2
+data8 0x82e45f06cb1ad0f2 , 0x00003ffc //   log(1/frcpa(1+74/2^-8))/2
+data8 0x842f5c7c573cbaa2 , 0x00003ffc //   log(1/frcpa(1+75/2^-8))/2
+//
+data8 0x85ce471968c8893a , 0x00003ffc //   log(1/frcpa(1+76/2^-8))/2
+data8 0x876e8305bc04066d , 0x00003ffc //   log(1/frcpa(1+77/2^-8))/2
+data8 0x891012678031fbb3 , 0x00003ffc //   log(1/frcpa(1+78/2^-8))/2
+data8 0x8a5f1493d766a05f , 0x00003ffc //   log(1/frcpa(1+79/2^-8))/2
+data8 0x8c030c778c56fa00 , 0x00003ffc //   log(1/frcpa(1+80/2^-8))/2
+//
+data8 0x8da85df17e31d9ae , 0x00003ffc //   log(1/frcpa(1+81/2^-8))/2
+data8 0x8efa663e7921687e , 0x00003ffc //   log(1/frcpa(1+82/2^-8))/2
+data8 0x90a22b6875c6a1f8 , 0x00003ffc //   log(1/frcpa(1+83/2^-8))/2
+data8 0x91f62cc8f5d24837 , 0x00003ffc //   log(1/frcpa(1+84/2^-8))/2
+data8 0x93a06cfc3857d980 , 0x00003ffc //   log(1/frcpa(1+85/2^-8))/2
+//
+data8 0x94f66d5e6fd01ced , 0x00003ffc //   log(1/frcpa(1+86/2^-8))/2
+data8 0x96a330156e6772f2 , 0x00003ffc //   log(1/frcpa(1+87/2^-8))/2
+data8 0x97fb3582754ea25b , 0x00003ffc //   log(1/frcpa(1+88/2^-8))/2
+data8 0x99aa8259aad1bbf2 , 0x00003ffc //   log(1/frcpa(1+89/2^-8))/2
+data8 0x9b0492f6227ae4a8 , 0x00003ffc //   log(1/frcpa(1+90/2^-8))/2
+//
+data8 0x9c5f8e199bf3a7a5 , 0x00003ffc //   log(1/frcpa(1+91/2^-8))/2
+data8 0x9e1293b9998c1daa , 0x00003ffc //   log(1/frcpa(1+92/2^-8))/2
+data8 0x9f6fa31e0b41f308 , 0x00003ffc //   log(1/frcpa(1+93/2^-8))/2
+data8 0xa0cda11eaf46390e , 0x00003ffc //   log(1/frcpa(1+94/2^-8))/2
+data8 0xa22c8f029cfa45aa , 0x00003ffc //   log(1/frcpa(1+95/2^-8))/2
+//
+data8 0xa3e48badb7856b34 , 0x00003ffc //   log(1/frcpa(1+96/2^-8))/2
+data8 0xa5459a0aa95849f9 , 0x00003ffc //   log(1/frcpa(1+97/2^-8))/2
+data8 0xa6a79c84480cfebd , 0x00003ffc //   log(1/frcpa(1+98/2^-8))/2
+data8 0xa80a946d0fcb3eb2 , 0x00003ffc //   log(1/frcpa(1+99/2^-8))/2
+data8 0xa96e831a3ea7b314 , 0x00003ffc //   log(1/frcpa(1+100/2^-8))/2
+//
+data8 0xaad369e3dc544e3b , 0x00003ffc //   log(1/frcpa(1+101/2^-8))/2
+data8 0xac92e9588952c815 , 0x00003ffc //   log(1/frcpa(1+102/2^-8))/2
+data8 0xadfa035aa1ed8fdc , 0x00003ffc //   log(1/frcpa(1+103/2^-8))/2
+data8 0xaf6219eae1ad6e34 , 0x00003ffc //   log(1/frcpa(1+104/2^-8))/2
+data8 0xb0cb2e6d8160f753 , 0x00003ffc //   log(1/frcpa(1+105/2^-8))/2
+//
+data8 0xb2354249ad950f72 , 0x00003ffc //   log(1/frcpa(1+106/2^-8))/2
+data8 0xb3a056e98ef4a3b4 , 0x00003ffc //   log(1/frcpa(1+107/2^-8))/2
+data8 0xb50c6dba52c6292a , 0x00003ffc //   log(1/frcpa(1+108/2^-8))/2
+data8 0xb679882c33876165 , 0x00003ffc //   log(1/frcpa(1+109/2^-8))/2
+data8 0xb78c07429785cedc , 0x00003ffc //   log(1/frcpa(1+110/2^-8))/2
+//
+data8 0xb8faeb8dc4a77d24 , 0x00003ffc //   log(1/frcpa(1+111/2^-8))/2
+data8 0xba6ad77eb36ae0d6 , 0x00003ffc //   log(1/frcpa(1+112/2^-8))/2
+data8 0xbbdbcc915e9bee50 , 0x00003ffc //   log(1/frcpa(1+113/2^-8))/2
+data8 0xbd4dcc44f8cf12ef , 0x00003ffc //   log(1/frcpa(1+114/2^-8))/2
+data8 0xbec0d81bf5b531fa , 0x00003ffc //   log(1/frcpa(1+115/2^-8))/2
+//
+data8 0xc034f19c139186f4 , 0x00003ffc //   log(1/frcpa(1+116/2^-8))/2
+data8 0xc14cb69f7c5e55ab , 0x00003ffc //   log(1/frcpa(1+117/2^-8))/2
+data8 0xc2c2abbb6e5fd56f , 0x00003ffc //   log(1/frcpa(1+118/2^-8))/2
+data8 0xc439b2c193e6771e , 0x00003ffc //   log(1/frcpa(1+119/2^-8))/2
+data8 0xc553acb9d5c67733 , 0x00003ffc //   log(1/frcpa(1+120/2^-8))/2
+//
+data8 0xc6cc96e441272441 , 0x00003ffc //   log(1/frcpa(1+121/2^-8))/2
+data8 0xc8469753eca88c30 , 0x00003ffc //   log(1/frcpa(1+122/2^-8))/2
+data8 0xc962cf3ce072b05c , 0x00003ffc //   log(1/frcpa(1+123/2^-8))/2
+data8 0xcadeba8771f694aa , 0x00003ffc //   log(1/frcpa(1+124/2^-8))/2
+data8 0xcc5bc08d1f72da94 , 0x00003ffc //   log(1/frcpa(1+125/2^-8))/2
+//
+data8 0xcd7a3f99ea035c29 , 0x00003ffc //   log(1/frcpa(1+126/2^-8))/2
+data8 0xcef93860c8a53c35 , 0x00003ffc //   log(1/frcpa(1+127/2^-8))/2
+data8 0xd0192f68a7ed23df , 0x00003ffc //   log(1/frcpa(1+128/2^-8))/2
+data8 0xd19a201127d3c645 , 0x00003ffc //   log(1/frcpa(1+129/2^-8))/2
+data8 0xd2bb92f4061c172c , 0x00003ffc //   log(1/frcpa(1+130/2^-8))/2
+//
+data8 0xd43e80b2ee8cc8fc , 0x00003ffc //   log(1/frcpa(1+131/2^-8))/2
+data8 0xd56173601fc4ade4 , 0x00003ffc //   log(1/frcpa(1+132/2^-8))/2
+data8 0xd6e6637efb54086f , 0x00003ffc //   log(1/frcpa(1+133/2^-8))/2
+data8 0xd80ad9f58f3c8193 , 0x00003ffc //   log(1/frcpa(1+134/2^-8))/2
+data8 0xd991d1d31aca41f8 , 0x00003ffc //   log(1/frcpa(1+135/2^-8))/2
+//
+data8 0xdab7d02231484a93 , 0x00003ffc //   log(1/frcpa(1+136/2^-8))/2
+data8 0xdc40d532cde49a54 , 0x00003ffc //   log(1/frcpa(1+137/2^-8))/2
+data8 0xdd685f79ed8b265e , 0x00003ffc //   log(1/frcpa(1+138/2^-8))/2
+data8 0xde9094bbc0e17b1d , 0x00003ffc //   log(1/frcpa(1+139/2^-8))/2
+data8 0xe01c91b78440c425 , 0x00003ffc //   log(1/frcpa(1+140/2^-8))/2
+//
+data8 0xe14658f26997e729 , 0x00003ffc //   log(1/frcpa(1+141/2^-8))/2
+data8 0xe270cdc2391e0d23 , 0x00003ffc //   log(1/frcpa(1+142/2^-8))/2
+data8 0xe3ffce3a2aa64922 , 0x00003ffc //   log(1/frcpa(1+143/2^-8))/2
+data8 0xe52bdb274ed82887 , 0x00003ffc //   log(1/frcpa(1+144/2^-8))/2
+data8 0xe6589852e75d7df6 , 0x00003ffc //   log(1/frcpa(1+145/2^-8))/2
+//
+data8 0xe786068c79937a7d , 0x00003ffc //   log(1/frcpa(1+146/2^-8))/2
+data8 0xe91903adad100911 , 0x00003ffc //   log(1/frcpa(1+147/2^-8))/2
+data8 0xea481236f7d35bb0 , 0x00003ffc //   log(1/frcpa(1+148/2^-8))/2
+data8 0xeb77d48c692e6b14 , 0x00003ffc //   log(1/frcpa(1+149/2^-8))/2
+data8 0xeca84b83d7297b87 , 0x00003ffc //   log(1/frcpa(1+150/2^-8))/2
+//
+data8 0xedd977f4962aa158 , 0x00003ffc //   log(1/frcpa(1+151/2^-8))/2
+data8 0xef7179a22f257754 , 0x00003ffc //   log(1/frcpa(1+152/2^-8))/2
+data8 0xf0a450d139366ca7 , 0x00003ffc //   log(1/frcpa(1+153/2^-8))/2
+data8 0xf1d7e0524ff9ffdb , 0x00003ffc //   log(1/frcpa(1+154/2^-8))/2
+data8 0xf30c29036a8b6cae , 0x00003ffc //   log(1/frcpa(1+155/2^-8))/2
+//
+data8 0xf4412bc411ea8d92 , 0x00003ffc //   log(1/frcpa(1+156/2^-8))/2
+data8 0xf576e97564c8619d , 0x00003ffc //   log(1/frcpa(1+157/2^-8))/2
+data8 0xf6ad62fa1b5f172f , 0x00003ffc //   log(1/frcpa(1+158/2^-8))/2
+data8 0xf7e499368b55c542 , 0x00003ffc //   log(1/frcpa(1+159/2^-8))/2
+data8 0xf91c8d10abaffe22 , 0x00003ffc //   log(1/frcpa(1+160/2^-8))/2
+//
+data8 0xfa553f7018c966f3 , 0x00003ffc //   log(1/frcpa(1+161/2^-8))/2
+data8 0xfb8eb13e185d802c , 0x00003ffc //   log(1/frcpa(1+162/2^-8))/2
+data8 0xfcc8e3659d9bcbed , 0x00003ffc //   log(1/frcpa(1+163/2^-8))/2
+data8 0xfe03d6d34d487fd2 , 0x00003ffc //   log(1/frcpa(1+164/2^-8))/2
+data8 0xff3f8c7581e9f0ae , 0x00003ffc //   log(1/frcpa(1+165/2^-8))/2
+//
+data8 0x803e029e280173ae , 0x00003ffd //   log(1/frcpa(1+166/2^-8))/2
+data8 0x80dca10cc52d0757 , 0x00003ffd //   log(1/frcpa(1+167/2^-8))/2
+data8 0x817ba200632755a1 , 0x00003ffd //   log(1/frcpa(1+168/2^-8))/2
+data8 0x821b05f3b01d6774 , 0x00003ffd //   log(1/frcpa(1+169/2^-8))/2
+data8 0x82bacd623ff19d06 , 0x00003ffd //   log(1/frcpa(1+170/2^-8))/2
+//
+data8 0x835af8c88e7a8f47 , 0x00003ffd //   log(1/frcpa(1+171/2^-8))/2
+data8 0x83c5f8299e2b4091 , 0x00003ffd //   log(1/frcpa(1+172/2^-8))/2
+data8 0x8466cb43f3d87300 , 0x00003ffd //   log(1/frcpa(1+173/2^-8))/2
+data8 0x850803a67c80ca4b , 0x00003ffd //   log(1/frcpa(1+174/2^-8))/2
+data8 0x85a9a1d11a23b461 , 0x00003ffd //   log(1/frcpa(1+175/2^-8))/2
+//
+data8 0x864ba644a18e6e05 , 0x00003ffd //   log(1/frcpa(1+176/2^-8))/2
+data8 0x86ee1182dcc432f7 , 0x00003ffd //   log(1/frcpa(1+177/2^-8))/2
+data8 0x875a925d7e48c316 , 0x00003ffd //   log(1/frcpa(1+178/2^-8))/2
+data8 0x87fdaa109d23aef7 , 0x00003ffd //   log(1/frcpa(1+179/2^-8))/2
+data8 0x88a129ed4becfaf2 , 0x00003ffd //   log(1/frcpa(1+180/2^-8))/2
+//
+data8 0x89451278ecd7f9cf , 0x00003ffd //   log(1/frcpa(1+181/2^-8))/2
+data8 0x89b29295f8432617 , 0x00003ffd //   log(1/frcpa(1+182/2^-8))/2
+data8 0x8a572ac5a5496882 , 0x00003ffd //   log(1/frcpa(1+183/2^-8))/2
+data8 0x8afc2d0ce3b2dadf , 0x00003ffd //   log(1/frcpa(1+184/2^-8))/2
+data8 0x8b6a69c608cfd3af , 0x00003ffd //   log(1/frcpa(1+185/2^-8))/2
+//
+data8 0x8c101e106e899a83 , 0x00003ffd //   log(1/frcpa(1+186/2^-8))/2
+data8 0x8cb63de258f9d626 , 0x00003ffd //   log(1/frcpa(1+187/2^-8))/2
+data8 0x8d2539c5bd19e2b1 , 0x00003ffd //   log(1/frcpa(1+188/2^-8))/2
+data8 0x8dcc0e064b29e6f1 , 0x00003ffd //   log(1/frcpa(1+189/2^-8))/2
+data8 0x8e734f45d88357ae , 0x00003ffd //   log(1/frcpa(1+190/2^-8))/2
+//
+data8 0x8ee30cef034a20db , 0x00003ffd //   log(1/frcpa(1+191/2^-8))/2
+data8 0x8f8b0515686d1d06 , 0x00003ffd //   log(1/frcpa(1+192/2^-8))/2
+data8 0x90336bba039bf32f , 0x00003ffd //   log(1/frcpa(1+193/2^-8))/2
+data8 0x90a3edd23d1c9d58 , 0x00003ffd //   log(1/frcpa(1+194/2^-8))/2
+data8 0x914d0de2f5d61b32 , 0x00003ffd //   log(1/frcpa(1+195/2^-8))/2
+//
+data8 0x91be0c20d28173b5 , 0x00003ffd //   log(1/frcpa(1+196/2^-8))/2
+data8 0x9267e737c06cd34a , 0x00003ffd //   log(1/frcpa(1+197/2^-8))/2
+data8 0x92d962ae6abb1237 , 0x00003ffd //   log(1/frcpa(1+198/2^-8))/2
+data8 0x9383fa6afbe2074c , 0x00003ffd //   log(1/frcpa(1+199/2^-8))/2
+data8 0x942f0421651c1c4e , 0x00003ffd //   log(1/frcpa(1+200/2^-8))/2
+//
+data8 0x94a14a3845bb985e , 0x00003ffd //   log(1/frcpa(1+201/2^-8))/2
+data8 0x954d133857f861e7 , 0x00003ffd //   log(1/frcpa(1+202/2^-8))/2
+data8 0x95bfd96468e604c4 , 0x00003ffd //   log(1/frcpa(1+203/2^-8))/2
+data8 0x9632d31cafafa858 , 0x00003ffd //   log(1/frcpa(1+204/2^-8))/2
+data8 0x96dfaabd86fa1647 , 0x00003ffd //   log(1/frcpa(1+205/2^-8))/2
+//
+data8 0x9753261fcbb2a594 , 0x00003ffd //   log(1/frcpa(1+206/2^-8))/2
+data8 0x9800c11b426b996d , 0x00003ffd //   log(1/frcpa(1+207/2^-8))/2
+data8 0x9874bf4d45ae663c , 0x00003ffd //   log(1/frcpa(1+208/2^-8))/2
+data8 0x99231f5ee9a74f79 , 0x00003ffd //   log(1/frcpa(1+209/2^-8))/2
+data8 0x9997a18a56bcad28 , 0x00003ffd //   log(1/frcpa(1+210/2^-8))/2
+//
+data8 0x9a46c873a3267e79 , 0x00003ffd //   log(1/frcpa(1+211/2^-8))/2
+data8 0x9abbcfc621eb6cb6 , 0x00003ffd //   log(1/frcpa(1+212/2^-8))/2
+data8 0x9b310cb0d354c990 , 0x00003ffd //   log(1/frcpa(1+213/2^-8))/2
+data8 0x9be14cf9e1b3515c , 0x00003ffd //   log(1/frcpa(1+214/2^-8))/2
+data8 0x9c5710b8cbb73a43 , 0x00003ffd //   log(1/frcpa(1+215/2^-8))/2
+//
+data8 0x9ccd0abd301f399c , 0x00003ffd //   log(1/frcpa(1+216/2^-8))/2
+data8 0x9d7e67f3bdce8888 , 0x00003ffd //   log(1/frcpa(1+217/2^-8))/2
+data8 0x9df4ea81a99daa01 , 0x00003ffd //   log(1/frcpa(1+218/2^-8))/2
+data8 0x9e6ba405a54514ba , 0x00003ffd //   log(1/frcpa(1+219/2^-8))/2
+data8 0x9f1e21c8c7bb62b3 , 0x00003ffd //   log(1/frcpa(1+220/2^-8))/2
+//
+data8 0x9f956593f6b6355c , 0x00003ffd //   log(1/frcpa(1+221/2^-8))/2
+data8 0xa00ce1092e5498c3 , 0x00003ffd //   log(1/frcpa(1+222/2^-8))/2
+data8 0xa0c08309c4b912c1 , 0x00003ffd //   log(1/frcpa(1+223/2^-8))/2
+data8 0xa1388a8c6faa2afa , 0x00003ffd //   log(1/frcpa(1+224/2^-8))/2
+data8 0xa1b0ca7095b5f985 , 0x00003ffd //   log(1/frcpa(1+225/2^-8))/2
+//
+data8 0xa22942eb47534a00 , 0x00003ffd //   log(1/frcpa(1+226/2^-8))/2
+data8 0xa2de62326449d0a3 , 0x00003ffd //   log(1/frcpa(1+227/2^-8))/2
+data8 0xa357690f88bfe345 , 0x00003ffd //   log(1/frcpa(1+228/2^-8))/2
+data8 0xa3d0a93f45169a4b , 0x00003ffd //   log(1/frcpa(1+229/2^-8))/2
+data8 0xa44a22f7ffe65f30 , 0x00003ffd //   log(1/frcpa(1+230/2^-8))/2
+//
+data8 0xa500c5e5b4c1aa36 , 0x00003ffd //   log(1/frcpa(1+231/2^-8))/2
+data8 0xa57ad064eb2ebbc2 , 0x00003ffd //   log(1/frcpa(1+232/2^-8))/2
+data8 0xa5f5152dedf4384e , 0x00003ffd //   log(1/frcpa(1+233/2^-8))/2
+data8 0xa66f9478856233ec , 0x00003ffd //   log(1/frcpa(1+234/2^-8))/2
+data8 0xa6ea4e7cca02c32e , 0x00003ffd //   log(1/frcpa(1+235/2^-8))/2
+//
+data8 0xa765437325341ccf , 0x00003ffd //   log(1/frcpa(1+236/2^-8))/2
+data8 0xa81e21e6c75b4020 , 0x00003ffd //   log(1/frcpa(1+237/2^-8))/2
+data8 0xa899ab333fe2b9ca , 0x00003ffd //   log(1/frcpa(1+238/2^-8))/2
+data8 0xa9157039c51ebe71 , 0x00003ffd //   log(1/frcpa(1+239/2^-8))/2
+data8 0xa991713433c2b999 , 0x00003ffd //   log(1/frcpa(1+240/2^-8))/2
+//
+data8 0xaa0dae5cbcc048b3 , 0x00003ffd //   log(1/frcpa(1+241/2^-8))/2
+data8 0xaa8a27ede5eb13ad , 0x00003ffd //   log(1/frcpa(1+242/2^-8))/2
+data8 0xab06de228a9e3499 , 0x00003ffd //   log(1/frcpa(1+243/2^-8))/2
+data8 0xab83d135dc633301 , 0x00003ffd //   log(1/frcpa(1+244/2^-8))/2
+data8 0xac3fb076adc7fe7a , 0x00003ffd //   log(1/frcpa(1+245/2^-8))/2
+//
+data8 0xacbd3cbbe47988f1 , 0x00003ffd //   log(1/frcpa(1+246/2^-8))/2
+data8 0xad3b06b1a5dc57c3 , 0x00003ffd //   log(1/frcpa(1+247/2^-8))/2
+data8 0xadb90e94af887717 , 0x00003ffd //   log(1/frcpa(1+248/2^-8))/2
+data8 0xae3754a218f7c816 , 0x00003ffd //   log(1/frcpa(1+249/2^-8))/2
+data8 0xaeb5d9175437afa2 , 0x00003ffd //   log(1/frcpa(1+250/2^-8))/2
+//
+data8 0xaf349c322e9c7cee , 0x00003ffd //   log(1/frcpa(1+251/2^-8))/2
+data8 0xafb39e30d1768d1c , 0x00003ffd //   log(1/frcpa(1+252/2^-8))/2
+data8 0xb032df51c2c93116 , 0x00003ffd //   log(1/frcpa(1+253/2^-8))/2
+data8 0xb0b25fd3e6035ad9 , 0x00003ffd //   log(1/frcpa(1+254/2^-8))/2
+data8 0xb1321ff67cba178c , 0x00003ffd //   log(1/frcpa(1+255/2^-8))/2
+LOCAL_OBJECT_END(atanh_data_3)
+
+
+
+.section .text
+GLOBAL_LIBM_ENTRY(atanh)
+
+{ .mfi
+      getf.exp      rArgSExpb = f8                  // Must recompute if x unorm
+      fclass.m      p13,p0 = f8, 0x0b               // is arg denormal ?
+      mov           rExpbMask = 0x1ffff
+}
+{ .mfi
+      addl          DataPtr = @ltoff(atanh_data), gp
+      fnma.s1       fOneMx = f8, f1, f1             // fOneMx = 1 - x
+      mov           rBias = 0xffff
+}
+;;
+
+{ .mfi
+      mov           rNearZeroBound = 0xfffd         // biased exp of 1/4
+      fclass.m      p12,p0 = f8, 0xc7               // is arg NaN or +/-0 ?
+      nop.i         0
+}
+{ .mfi
+      ld8           DataPtr = [DataPtr]
+      fma.s1        fOnePx = f8, f1, f1             // fOnePx = 1 + x
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fcmp.lt.s1    p10,p11 = f8,f0                 // is x < 0 ?
+      nop.i         0
+}
+{ .mfb
+      nop.m         0
+      fnorm.s1      fNormX = f8                     // Normalize x
+(p13) br.cond.spnt  ATANH_UNORM                     // Branch if x=unorm
+}
+;;
+
+ATANH_COMMON:
+// Return here if x=unorm and not denorm
+{ .mfi
+      adds          Data2Ptr = 0x50, DataPtr
+      fma.s1        fX2 = f8, f8, f0                // x^2
+      nop.i         0
+}
+{ .mfb
+      adds          Data3Ptr = 0xC0, DataPtr
+(p12) fma.d.s0      f8 = f8,f1,f8                   // NaN or +/-0
+(p12) br.ret.spnt   b0                              // Exit for x Nan or zero
+}
+;;
+
+{ .mfi
+      ldfe          fC9 = [Data2Ptr], 16
+(p11) frcpa.s1      fRcp0, p0 = f1, fOneMx
+      nop.i         0
+}
+;;
+
+{ .mfi
+      ldfe          fC8 = [Data2Ptr], 16
+(p10) frcpa.s1      fRcp0n, p0 = f1, fOnePx
+      and           rArgExpb = rArgSExpb, rExpbMask // biased exponent
+}
+{ .mfi
+      nop.m         0
+(p10) fma.s1        fOneMx = fOnePx, f1, f0         // fOnePx = 1 - |x|
+      nop.i         0
+}
+;;
+
+{ .mfi
+      ldfe          fC7 = [Data2Ptr], 16
+(p10) fnma.s1       fOnePx = fNormX, f1, f1         // fOnePx = 1 + |x|
+      cmp.ge        p6,p0 = rArgExpb, rBias         // is Expb(Arg) >= Expb(1) ?
+}
+{ .mfb
+      nop.m         0
+      nop.f         0
+(p6)  br.cond.spnt  atanh_ge_one                    // Branch if |x| >=1.0
+}
+;;
+
+{ .mfi
+      ldfe          fC6 = [Data2Ptr], 16
+      nop.f         0
+      nop.i         0
+}
+;;
+
+{ .mfi
+      ldfe          fC5 = [Data2Ptr], 16
+      fma.s1        fX4 = fX2, fX2, f0              // x^4
+      cmp.gt        p8,p0 = rNearZeroBound, rArgExpb
+}
+{ .mfb
+      ldfe          fC2 = [Data3Ptr], 16
+      fma.s1        fX3 = fX2, fNormX, f0           // x^3
+(p8)  br.cond.spnt  atanh_near_zero                 // Exit if 0 < |x| < 0.25
+}
+;;
+
+// Main path: 0.25 <= |x| < 1.0
+// NR method: iteration #1
+.pred.rel "mutex",p11,p10
+{ .mfi
+      ldfpd         fP5, fP4 = [DataPtr], 16
+(p11) fnma.s1       fRcp1 = fRcp0, fOneMx, f1       // t = 1 - r0*x
+      nop.i         0
+}
+{ .mfi
+      nop.m         0
+(p10) fnma.s1       fRcp1 = fRcp0n, fOneMx, f1      // t = 1 - r0*x
+      nop.i         0
+}
+;;
+
+{ .mfi
+      ldfpd         fP3, fP2 = [DataPtr], 16
+      // r1 = r0 + r0*t = r0 + r0*(1 - r0*x)
+(p11) fma.s1        fRcp1 = fRcp0, fRcp1, fRcp0
+      nop.i         0
+}
+{ .mfi
+      nop.m         0
+      // r1 = r0 + r0*t = r0 + r0*(1 - r0*x)
+(p10) fma.s1        fRcp1 = fRcp0n, fRcp1, fRcp0n
+      nop.i         0
+}
+;;
+
+// NR method: iteration #2
+{ .mfi
+      ldfd          fP1 = [DataPtr], 16
+      fnma.s1       fRcp2 = fRcp1, fOneMx, f1       // t = 1 - r1*x
+      nop.i         0
+}
+;;
+
+{ .mfi
+      ldfe          fLog2 = [DataPtr], 16
+      // r2 = r1 + r1*t = r1 + r1*(1 - r1*x)
+      fma.s1        fRcp2 = fRcp1, fRcp2, fRcp1
+      nop.i         0
+}
+;;
+
+// NR method: iteration #3
+{ .mfi
+      adds          RcpTablePtr = 0xB0, DataPtr
+      fnma.s1       fRcp3 = fRcp2, fOneMx, f1       // t = 1 - r2*x
+      nop.i         0
+}
+{ .mfi
+      nop.m         0
+      fma.s1        fY4Rcp = fRcp2, fOnePx, f0      // fY4Rcp = r2*(1 + x)
+      nop.i         0
+}
+;;
+
+// polynomial approximation & final reconstruction
+{ .mfi
+      nop.m         0
+      frcpa.s1      fRcp, p0 = f1, fY4Rcp
+      nop.i         0
+}
+{ .mfi
+      nop.m         0
+      // y = r2 * (1 + x) + r2 * (1 + x) * t = (1 + x) * (r2 + r2*(1 - r2*x))
+      fma.s1        fY = fY4Rcp, fRcp3, fY4Rcp
+      nop.i         0
+}
+;;
+
+{ .mmi
+      getf.exp      rSExpb = fY4Rcp                 // biased exponent and sign
+;;
+      getf.sig      rSig = fY4Rcp                   // significand
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fms.s1        fR = fY, fRcp, f1               // fR = fY * fRcp - 1
+      nop.i         0
+}
+;;
+
+{ .mmi
+      and           rExpb = rSExpb, rExpbMask
+;;
+      sub           rN = rExpb, rBias               // exponent
+      extr.u        rInd = rSig,55,8                // Extract 8 bits
+}
+;;
+
+{ .mmi
+      setf.sig      fN4Cvt = rN
+      shladd        RcpTablePtr = rInd, 4, RcpTablePtr
+      nop.i         0
+}
+;;
+
+{ .mfi
+      ldfe          fLogT = [RcpTablePtr]
+      fma.s1        fR2 = fR, fR, f0                // r^2
+      nop.i         0
+}
+{
+      nop.m         0
+      fma.s1        fP54 = fP5, fR, fP4             // P5*r + P4
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fma.s1        fP32 = fP3, fR, fP2             // P3*r + P2
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fma.s1        fR3 = fR2, fR, f0               // r^3
+      nop.i         0
+}
+{ .mfi
+      nop.m         0
+      fma.s1        fP10 = fP1, fR2, fR             // P1*r^2 + r
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fcvt.xf       fN = fN4Cvt
+      nop.i         0
+}
+{ .mfi
+      nop.m         0
+      fma.s1        fP54 = fP54, fR2, fP32      // (P5*r + P4)*r^2 + P3*r + P2
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fma.s1        fLogT_N = fN, fLog2, fLogT      // N*Log2 + LogT
+      nop.i         0
+}
+{ .mfi
+      nop.m         0
+      // ((P5*r + P4)*r^2 + P3*r + P2)*r^3 + P1*r^2 + r
+      fma.s1        fP54 = fP54, fR3, fP10
+      nop.i         0
+}
+;;
+
+.pred.rel "mutex",p11,p10
+{ .mfi
+      nop.m         0
+      // 0.5*(((P5*r + P4)*r^2 + P3*r + P2)*r^3 + P1*r^2 + r) + 0.5*(N*Log2 + T)
+(p11) fnma.d.s0     f8 = fP54, fP1, fLogT_N
+      nop.i         0
+}
+{ .mfb
+      nop.m         0
+     // -0.5*(((P5*r + P4)*r^2 + P3*r + P2)*r^3 + P1*r^2 + r) - 0.5*(N*Log2 + T)
+(p10) fms.d.s0      f8 = fP54, fP1, fLogT_N
+      br.ret.sptk   b0                          // Exit for 0.25 <= |x| < 1.0
+}
+;;
+
+// Here if 0 < |x| < 0.25
+atanh_near_zero:
+{ .mfi
+      ldfe          fC4 = [Data2Ptr], 16
+      fma.s1        fP98 = fC9, fX2, fC8           // C9*x^2 + C8
+      nop.i         0
+}
+{ .mfi
+      ldfe          fC1 = [Data3Ptr], 16
+      fma.s1        fP76 = fC7, fX2, fC6           // C7*x^2 + C6
+      nop.i         0
+}
+;;
+
+{ .mfi
+      ldfe          fC3 = [Data2Ptr], 16
+      fma.s1        fX8 = fX4, fX4, f0             // x^8
+      nop.i         0
+}
+{ .mfi
+      ldfe          fC0 = [Data3Ptr], 16
+      nop.f         0
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fma.s1        fP98 = fP98, fX4, fP76     // C9*x^6 + C8*x^4 + C7*x^2 + C6
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fma.s1        fP54 = fC5, fX2, fC4           // C5*x^2 + C4
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fma.s1        fP32 = fC3, fX2, fC2           // C3*x^2 + C2
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fma.s1        fP10 = fC1, fX2, fC0           // C1*x^2 + C0
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fma.s1        fP54 = fP54, fX4, fP32      // C5*x^6 + C4*x^4 + C3*x^2 + C2
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      // C9*x^14 + C8*x^12 + C7*x^10 + C6*x^8 + C5*x^6 + C4*x^4 + C3*x^2 + C2
+      fma.s1        fP98 = fP98, fX8, fP54
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      // C9*x^18 + C8*x^16 + C7*x^14 + C6*x^12 + C5*x^10 + C4*x^8 + C3*x^6 +
+      // C2*x^4 + C1*x^2 + C0
+      fma.s1        fP98 = fP98, fX4, fP10
+      nop.i         0
+}
+;;
+
+{ .mfb
+      nop.m         0
+      // C9*x^21 + C8*x^19 + C7*x^17 + C6*x^15 + C5*x^13 + C4*x^11 + C3*x^9 +
+      // C2*x^7 + C1*x^5 + C0*x^3 + x
+      fma.d.s0      f8 = fP98, fX3, fNormX
+      br.ret.sptk   b0                           // Exit for 0 < |x| < 0.25
+}
+;;
+
+ATANH_UNORM:
+// Here if x=unorm
+{ .mfi
+      getf.exp      rArgSExpb = fNormX           // Recompute if x unorm
+      fclass.m      p0,p13 = fNormX, 0x0b        // Test x denorm
+      nop.i         0
+}
+;;
+
+{ .mfb
+      nop.m         0
+      fcmp.eq.s0    p7,p0 = f8, f0        // Dummy to set denormal flag
+(p13) br.cond.sptk  ATANH_COMMON          // Continue if x unorm and not denorm
+}
+;;
+
+.pred.rel "mutex",p10,p11
+{ .mfi
+      nop.m         0
+(p10) fnma.d.s0     f8 = f8,f8,f8                // Result x-x^2 if x=-denorm
+      nop.i         0
+}
+{ .mfb
+      nop.m         0
+(p11) fma.d.s0      f8 = f8,f8,f8                // Result x+x^2 if x=+denorm
+      br.ret.spnt   b0                           // Exit if denorm
+}
+;;
+
+// Here if |x| >= 1.0
+atanh_ge_one:
+{ .mfi
+      alloc         r32 = ar.pfs,1,3,4,0
+      fmerge.s      fAbsX = f0, f8          // Form |x|
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fmerge.s      f10 = f8, f8            // Save input for error call
+      nop.i         0
+}
+;;
+
+{ .mfi
+      nop.m         0
+      fcmp.eq.s1    p6,p7 = fAbsX, f1       // Test for |x| = 1.0
+      nop.i         0
+}
+;;
+
+// Set error tag and result, and raise invalid flag if |x| > 1.0
+{ .mfi
+(p7)  mov           atanh_GR_tag = 131
+(p7)  frcpa.s0      f8, p0 = f0, f0         // Get QNaN, and raise invalid
+      nop.i         0
+}
+;;
+
+// Set error tag and result, and raise Z flag if |x| = 1.0
+{ .mfi
+      nop.m         0
+(p6)  frcpa.s0      fRcp, p0 = f1, f0       // Get inf, and raise Z flag
+      nop.i         0
+}
+;;
+
+{ .mfb
+(p6)  mov           atanh_GR_tag = 132
+(p6)  fmerge.s      f8 = f8, fRcp           // result is +-inf
+      br.cond.sptk  __libm_error_region     // Exit if |x| >= 1.0
+}
+;;
+
+GLOBAL_LIBM_END(atanh)
+
+LOCAL_LIBM_ENTRY(__libm_error_region)
+.prologue
+
+{ .mfi
+      add           GR_Parameter_Y=-32,sp        // Parameter 2 value
+      nop.f         0
+.save   ar.pfs,GR_SAVE_PFS
+      mov           GR_SAVE_PFS=ar.pfs           // Save ar.pfs
+}
+{ .mfi
+.fframe 64
+      add sp=-64,sp                              // Create new stack
+      nop.f 0
+      mov GR_SAVE_GP=gp                          // Save gp
+};;
+
+{ .mmi
+      stfd [GR_Parameter_Y] = f1,16              // STORE Parameter 2 on stack
+      add GR_Parameter_X = 16,sp                 // Parameter 1 address
+.save   b0, GR_SAVE_B0
+      mov GR_SAVE_B0=b0                          // Save b0
+};;
+
+.body
+{ .mib
+      stfd [GR_Parameter_X] = f10                // STORE Parameter 1 on stack
+      add   GR_Parameter_RESULT = 0,GR_Parameter_Y  // Parameter 3 address
+      nop.b 0
+}
+{ .mib
+      stfd [GR_Parameter_Y] = f8                 // STORE Parameter 3 on stack
+      add   GR_Parameter_Y = -16,GR_Parameter_Y
+      br.call.sptk b0=__libm_error_support#      // Call error handling function
+};;
+
+{ .mmi
+      add   GR_Parameter_RESULT = 48,sp
+      nop.m 0
+      nop.i 0
+};;
+
+{ .mmi
+      ldfd  f8 = [GR_Parameter_RESULT]           // Get return result off stack
+.restore sp
+      add   sp = 64,sp                           // Restore stack pointer
+      mov   b0 = GR_SAVE_B0                      // Restore return address
+};;
+
+{ .mib
+      mov   gp = GR_SAVE_GP                      // Restore gp
+      mov   ar.pfs = GR_SAVE_PFS                 // Restore ar.pfs
+      br.ret.sptk     b0                         // Return
+};;
+
+LOCAL_LIBM_END(__libm_error_region)
+
+
+.type   __libm_error_support#,@function
+.global __libm_error_support#