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[Commits] r22773 - in /fsf/trunk/libc: ./ benchtests/ include/ manual/ math/ math/bits/ ports/ ports/sysdeps/hppa/ ports/sysdeps/mips/...



Author: eglibc
Date: Wed Apr  3 00:02:15 2013
New Revision: 22773

Log:
Import glibc-mainline for 2013-04-03

Added:
    fsf/trunk/libc/benchtests/sin-inputs
    fsf/trunk/libc/benchtests/slowexp-inputs
    fsf/trunk/libc/benchtests/slowexp.c
    fsf/trunk/libc/benchtests/slowpow-inputs
    fsf/trunk/libc/benchtests/slowpow.c
    fsf/trunk/libc/benchtests/slowsin-inputs
    fsf/trunk/libc/benchtests/slowsin.c
    fsf/trunk/libc/ports/sysdeps/hppa/math_private.h
    fsf/trunk/libc/ports/sysdeps/mips/math_private.h
    fsf/trunk/libc/sysdeps/ieee754/dbl-64/s_issignaling.c
    fsf/trunk/libc/sysdeps/ieee754/dbl-64/wordsize-64/s_issignaling.c
    fsf/trunk/libc/sysdeps/ieee754/flt-32/s_issignalingf.c
    fsf/trunk/libc/sysdeps/ieee754/ldbl-128/s_issignalingl.c
    fsf/trunk/libc/sysdeps/ieee754/ldbl-128ibm/s_issignalingl.c
    fsf/trunk/libc/sysdeps/ieee754/ldbl-96/s_issignalingl.c
    fsf/trunk/libc/sysdeps/powerpc/math-tests.h
Modified:
    fsf/trunk/libc/ChangeLog
    fsf/trunk/libc/NEWS
    fsf/trunk/libc/Versions.def
    fsf/trunk/libc/benchtests/Makefile
    fsf/trunk/libc/benchtests/exp-inputs
    fsf/trunk/libc/benchtests/pow-inputs
    fsf/trunk/libc/include/math.h
    fsf/trunk/libc/manual/arith.texi
    fsf/trunk/libc/manual/libm-err-tab.pl
    fsf/trunk/libc/math/Makefile
    fsf/trunk/libc/math/Versions
    fsf/trunk/libc/math/basic-test.c
    fsf/trunk/libc/math/bits/mathcalls.h
    fsf/trunk/libc/math/gen-libm-test.pl
    fsf/trunk/libc/math/libm-test.inc
    fsf/trunk/libc/math/math.h
    fsf/trunk/libc/math/s_cacosh.c
    fsf/trunk/libc/math/s_cacoshf.c
    fsf/trunk/libc/math/s_cacoshl.c
    fsf/trunk/libc/math/test-snan.c
    fsf/trunk/libc/ports/ChangeLog.hppa
    fsf/trunk/libc/ports/ChangeLog.mips
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/aarch64/nptl/libm.abilist
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/alpha/nptl/libm.abilist
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/arm/nptl/libm.abilist
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/ia64/nptl/libm.abilist
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/m68k/coldfire/nptl/libm.abilist
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/m68k/m680x0/nptl/libm.abilist
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/mips/mips32/nptl/libm.abilist
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/n32/nptl/libm.abilist
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/mips/mips64/n64/nptl/libm.abilist
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/libm.abilist
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/nptl/libm.abilist
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/nptl/libm.abilist
    fsf/trunk/libc/ports/sysdeps/unix/sysv/linux/tile/tilepro/nptl/libm.abilist
    fsf/trunk/libc/sysdeps/generic/math-tests.h
    fsf/trunk/libc/sysdeps/i386/fpu/libm-test-ulps
    fsf/trunk/libc/sysdeps/ieee754/dbl-64/mpa.h
    fsf/trunk/libc/sysdeps/ieee754/dbl-64/mpexp.c
    fsf/trunk/libc/sysdeps/unix/sysv/linux/i386/nptl/libm.abilist
    fsf/trunk/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl/libm.abilist
    fsf/trunk/libc/sysdeps/unix/sysv/linux/powerpc/powerpc64/nptl/libm.abilist
    fsf/trunk/libc/sysdeps/unix/sysv/linux/s390/s390-32/nptl/libm.abilist
    fsf/trunk/libc/sysdeps/unix/sysv/linux/s390/s390-64/nptl/libm.abilist
    fsf/trunk/libc/sysdeps/unix/sysv/linux/sh/nptl/libm.abilist
    fsf/trunk/libc/sysdeps/unix/sysv/linux/sparc/sparc32/nptl/libm.abilist
    fsf/trunk/libc/sysdeps/unix/sysv/linux/sparc/sparc64/nptl/libm.abilist
    fsf/trunk/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libm.abilist
    fsf/trunk/libc/sysdeps/unix/sysv/linux/x86_64/x32/nptl/libm.abilist
    fsf/trunk/libc/sysdeps/x86_64/fpu/libm-test-ulps

Modified: fsf/trunk/libc/ChangeLog
==============================================================================
--- fsf/trunk/libc/ChangeLog (original)
+++ fsf/trunk/libc/ChangeLog Wed Apr  3 00:02:15 2013
@@ -1,3 +1,79 @@
+2013-04-02  Joseph Myers  <joseph@xxxxxxxxxxxxxxxx>
+
+	[BZ #15327]
+	* math/s_cacosh.c (__cacosh): Implement for finite nonzero
+	arguments using __kernel_casinh.
+	* math/s_cacoshf.c (__cacoshf): Implement for finite nonzero
+	arguments using __kernel_casinhf.
+	* math/s_cacoshl.c (__cacoshl): Implement for finite nonzero
+	arguments using __kernel_casinhl.
+	* math/libm-test.inc (cacosh_test): Add more tests.
+	* sysdeps/i386/fpu/libm-test-ulps: Update.
+	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
+
+2013-04-02  Siddhesh Poyarekar  <siddhesh@xxxxxxxxxx>
+
+	* sysdeps/ieee754/dbl-64/mpa.h (HALFRAD): Define as TWO23.
+	* sysdeps/ieee754/dbl-64/mpexp.c (__mpexp): Use mantissa_t.
+
+	* bench/Makefile (bench): Add sin and slowsin.
+	* benchtests/sin-inputs: New file.
+	* benchtests/slowsin-inputs: New file.
+	* benchtests/slowsin.c: New file.
+
+	* benchtests/Makefile: Add benchmarks for slowpow and slowexp.
+	(bench): Add slowexp and slowpow.
+	(exp-ITER): Increase iterations.
+	(pow-ITER): Likewise.
+	* benchtests/exp-inputs: Change input.
+	* benchtests/pow-inputs: Likewise.
+	* benchtests/slowexp-inputs: New file.
+	* benchtests/slowexp.c: New file.
+	* benchtests/slowpow-inputs: New file.
+	* benchtests/slowpow.c: New file.
+
+2013-04-02  Adhemerval Zanella  <azanella@xxxxxxxxxxxxxxxxxx>
+
+	* sysdeps/powerpc/powerpc32/fpu/s_rint.S: Remove branch prediction
+	instructions.
+	* sysdeps/powerpc/powerpc32/fpu/s_rintf.S: Likewise.
+	* sysdeps/powerpc/powerpc64/fpu/s_rint.S: Likewise.
+	* sysdeps/powerpc/powerpc64/fpu/s_rintf.S: Likewise.
+	* benchtests/Makefile: Add rint benchtest.
+	* benchtests/rint-inputs: Input for rint benchtest.
+
+2013-04-02  Thomas Schwinge  <thomas@xxxxxxxxxxxxxxxx>
+
+	* Versions.def (libm): Add GLIBC_2.18.
+	* include/math.h [!_ISOMAC] (__issignaling, __issignalingf): Add
+	hidden libm prototypes.
+	[!_ISOMAC && !__NO_LONG_DOUBLE_MATH] (__issignalingl): Likewise.
+	* math/Makefile (libm-calls): Add s_issignaling.
+	* math/Versions (libm: GLIBC_2.18): Add __issignaling,
+	__issignalingf, __issignalingl.  Adjust all libm.abilist files.
+	* math/bits/mathcalls.h [__USE_GNU] (__issignaling): New prototype
+	declaration.
+	* math/math.h [__USE_GNU] (issignaling): New macro.
+	* sysdeps/ieee754/flt-32/s_issignalingf.c: New file.
+	* sysdeps/ieee754/dbl-64/s_issignaling.c: Likewise.
+	* sysdeps/ieee754/dbl-64/wordsize-64/s_issignaling.c: Likewise.
+	* sysdeps/ieee754/ldbl-96/s_issignalingl.c: Likewise.
+	* sysdeps/ieee754/ldbl-128/s_issignalingl.c: Likewise.
+	* sysdeps/ieee754/ldbl-128ibm/s_issignalingl.c: Likewise.
+	* manual/arith.texi (issignaling): New section.
+	* manual/libm-err-tab.pl (@all_functions): Update comment.
+	* math/gen-libm-test.pl (parse_args): Apply special handling for
+	issignaling.
+	* math/libm-test.inc (print_float, issignaling_test): New
+	functions.
+	(check_float_internal): Add issignaling checks.
+	* sysdeps/generic/math-tests.h (SNAN_TESTS_TYPE_CAST): Provide
+	default definition.
+	* sysdeps/powerpc/math-tests.h: New file.
+	* math/basic-test.c (TEST_FUNC, TEST_TRUNC): Add issignaling
+	tests.
+	* math/test-snan.c (TEST_FUNC): Likewise.
+
 2013-03-30  David S. Miller  <davem@xxxxxxxxxxxxx>
 
 	* po/de.po: Update from translation team.

Modified: fsf/trunk/libc/NEWS
==============================================================================
--- fsf/trunk/libc/NEWS (original)
+++ fsf/trunk/libc/NEWS Wed Apr  3 00:02:15 2013
@@ -12,7 +12,7 @@
   10357, 11120, 11561, 12723, 13550, 13889, 13951, 14142, 14176, 14200,
   14317, 14327, 14496, 14812, 14920, 14964, 14981, 14982, 14985, 14994,
   14996, 15003, 15006, 15020, 15023, 15036, 15054, 15055, 15062, 15078,
-  15160, 15214, 15232, 15234, 15283, 15285, 15287, 15304, 15307.
+  15160, 15214, 15232, 15234, 15283, 15285, 15287, 15304, 15307, 15327.
 
 * Add support for calling C++11 thread_local object destructors on thread
   and program exit.  This needs compiler support for offloading C++11
@@ -26,6 +26,8 @@
 
 * Added a benchmark framework to track performance of functions in glibc.
 
+* New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
+  It is based on draft TS 18661 and currently enabled as a GNU extension.
 
 Version 2.17
 

Modified: fsf/trunk/libc/Versions.def
==============================================================================
--- fsf/trunk/libc/Versions.def (original)
+++ fsf/trunk/libc/Versions.def Wed Apr  3 00:02:15 2013
@@ -58,6 +58,7 @@
   GLIBC_2.3.4
   GLIBC_2.4
   GLIBC_2.15
+  GLIBC_2.18
 }
 libnsl {
   GLIBC_2.0

Modified: fsf/trunk/libc/benchtests/Makefile
==============================================================================
--- fsf/trunk/libc/benchtests/Makefile (original)
+++ fsf/trunk/libc/benchtests/Makefile Wed Apr  3 00:02:15 2013
@@ -25,7 +25,9 @@
 
 # - Define foo-ITER with the number of iterations you want to run.  Keep it
 #   high enough that the overhead of clock_gettime is only a small fraction of
-#   the total run time of the test.
+#   the total run time of the test.  A good idea would be to keep the run time
+#   of each test at around 10 seconds for x86_64.  That is just a guideline,
+#   since some scenarios may require higher run times.
 
 # - Define foo-ARGLIST as a colon separated list of types of the input
 #   arguments.  Use `void` if function does not take any inputs.  Put in quotes
@@ -43,14 +45,16 @@
 #   See pow-inputs for an example.
 
 subdir := benchtests
-bench := exp pow rint
+bench := exp pow rint sin slowexp slowpow slowsin
 
-exp-ITER = 100000
+# exp function fast path
+exp-ITER = 5e8
 exp-ARGLIST = double
 exp-RET = double
 LDFLAGS-bench-exp = -lm
 
-pow-ITER = 100000
+# pow function fast path
+pow-ITER = 2e8
 pow-ARGLIST = double:double
 pow-RET = double
 LDFLAGS-bench-pow = -lm
@@ -60,5 +64,32 @@
 rint-RET = double
 LDFLAGS-bench-rint = -lm
 
+# exp function slowest path
+slowexp-ITER = 3e5
+slowexp-ARGLIST = double
+slowexp-RET = double
+slowexp-INCLUDE = slowexp.c
+LDFLAGS-bench-slowexp = -lm
+
+# sin function fast path
+sin-ITER = 3e9
+sin-ARGLIST = double
+sin-RET = double
+LDFLAGS-bench-sin = -lm
+
+# pow function slowest path
+slowpow-ITER = 1e5
+slowpow-ARGLIST = double:double
+slowpow-RET = double
+slowpow-INCLUDE = slowpow.c
+LDFLAGS-bench-slowpow = -lm
+
+# sin function slowest path
+slowsin-ITER = 3e7
+slowsin-ARGLIST = double
+slowsin-RET = double
+slowsin-INCLUDE = slowsin.c
+LDFLAGS-bench-slowsin = -lm
+
 include ../Makeconfig
 include ../Rules

Modified: fsf/trunk/libc/benchtests/exp-inputs
==============================================================================
--- fsf/trunk/libc/benchtests/exp-inputs (original)
+++ fsf/trunk/libc/benchtests/exp-inputs Wed Apr  3 00:02:15 2013
@@ -1,1 +1,1 @@
-708.00096423260981737257679924368858
+42

Modified: fsf/trunk/libc/benchtests/pow-inputs
==============================================================================
--- fsf/trunk/libc/benchtests/pow-inputs (original)
+++ fsf/trunk/libc/benchtests/pow-inputs Wed Apr  3 00:02:15 2013
@@ -1,1 +1,1 @@
-1.0000000000000020, 1.5
+42.0, 42.0

Added: fsf/trunk/libc/benchtests/sin-inputs
==============================================================================
--- fsf/trunk/libc/benchtests/sin-inputs (added)
+++ fsf/trunk/libc/benchtests/sin-inputs Wed Apr  3 00:02:15 2013
@@ -1,0 +1,7 @@
+0.9
+2.3
+3.7
+3.9
+4.0
+4.7
+5.9

Added: fsf/trunk/libc/benchtests/slowexp-inputs
==============================================================================
--- fsf/trunk/libc/benchtests/slowexp-inputs (added)
+++ fsf/trunk/libc/benchtests/slowexp-inputs Wed Apr  3 00:02:15 2013
@@ -1,0 +1,1 @@
+708.00096423260981737257679924368858

Added: fsf/trunk/libc/benchtests/slowexp.c
==============================================================================
--- fsf/trunk/libc/benchtests/slowexp.c (added)
+++ fsf/trunk/libc/benchtests/slowexp.c Wed Apr  3 00:02:15 2013
@@ -1,0 +1,19 @@
+/* Define slowexp.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define slowexp exp

Added: fsf/trunk/libc/benchtests/slowpow-inputs
==============================================================================
--- fsf/trunk/libc/benchtests/slowpow-inputs (added)
+++ fsf/trunk/libc/benchtests/slowpow-inputs Wed Apr  3 00:02:15 2013
@@ -1,0 +1,1 @@
+1.0000000000000020, 1.5

Added: fsf/trunk/libc/benchtests/slowpow.c
==============================================================================
--- fsf/trunk/libc/benchtests/slowpow.c (added)
+++ fsf/trunk/libc/benchtests/slowpow.c Wed Apr  3 00:02:15 2013
@@ -1,0 +1,19 @@
+/* Define slowpow.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define slowpow pow

Added: fsf/trunk/libc/benchtests/slowsin-inputs
==============================================================================
--- fsf/trunk/libc/benchtests/slowsin-inputs (added)
+++ fsf/trunk/libc/benchtests/slowsin-inputs Wed Apr  3 00:02:15 2013
@@ -1,0 +1,7 @@
+0.93340582292648832662962377071381
+2.3328432680770916363144351635128
+3.7439477503636453548097051680088
+3.9225160069792437411706487182528
+4.0711651639931289992091478779912
+4.7858438478542097982426639646292
+5.9840767662578002727968851104379

Added: fsf/trunk/libc/benchtests/slowsin.c
==============================================================================
--- fsf/trunk/libc/benchtests/slowsin.c (added)
+++ fsf/trunk/libc/benchtests/slowsin.c Wed Apr  3 00:02:15 2013
@@ -1,0 +1,19 @@
+/* Define slowsin.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define slowsin sin

Modified: fsf/trunk/libc/include/math.h
==============================================================================
--- fsf/trunk/libc/include/math.h (original)
+++ fsf/trunk/libc/include/math.h Wed Apr  3 00:02:15 2013
@@ -23,11 +23,14 @@
 
 libm_hidden_proto (__fpclassify)
 libm_hidden_proto (__fpclassifyf)
+libm_hidden_proto (__issignaling)
+libm_hidden_proto (__issignalingf)
 libm_hidden_proto (__exp)
 libm_hidden_proto (__expf)
 
 # ifndef __NO_LONG_DOUBLE_MATH
 libm_hidden_proto (__fpclassifyl)
+libm_hidden_proto (__issignalingl)
 libm_hidden_proto (__expl)
 libm_hidden_proto (__expm1l)
 # endif

Modified: fsf/trunk/libc/manual/arith.texi
==============================================================================
--- fsf/trunk/libc/manual/arith.texi (original)
+++ fsf/trunk/libc/manual/arith.texi Wed Apr  3 00:02:15 2013
@@ -385,6 +385,14 @@
 @smallexample
 (fpclassify (x) == FP_NAN)
 @end smallexample
+@end deftypefn
+
+@comment math.h
+@comment GNU
+@deftypefn {Macro} int issignaling (@emph{float-type} @var{x})
+This macro returns a nonzero value if @var{x} is a signaling NaN
+(sNaN).  It is based on draft TS 18661 and currently enabled as a GNU
+extension.
 @end deftypefn
 
 Another set of floating-point classification functions was provided by

Modified: fsf/trunk/libc/manual/libm-err-tab.pl
==============================================================================
--- fsf/trunk/libc/manual/libm-err-tab.pl (original)
+++ fsf/trunk/libc/manual/libm-err-tab.pl Wed Apr  3 00:02:15 2013
@@ -77,7 +77,9 @@
     "remainder", "remquo", "rint", "round", "scalb", "scalbn", "scalbln",
     "sin", "sincos", "sinh", "sqrt", "tan", "tanh", "tgamma",
     "trunc", "y0", "y1", "yn" );
-# "fpclassify", "isfinite", "isnormal", "signbit" are not tabulated
+# fpclassify, isnormal, isfinite, isinf, isnan, issignaling, signbit,
+# isgreater, isgreaterequal, isless, islessequal, islessgreater, isunordered
+# are not tabulated.
 
 if ($#ARGV == 0) {
   $sources = $ARGV[0];

Modified: fsf/trunk/libc/math/Makefile
==============================================================================
--- fsf/trunk/libc/math/Makefile (original)
+++ fsf/trunk/libc/math/Makefile Wed Apr  3 00:02:15 2013
@@ -58,7 +58,7 @@
 	     s_catan s_casin s_ccos s_csin s_ctan s_ctanh s_cacos	\
 	     s_casinh s_cacosh s_catanh s_csqrt s_cpow s_cproj s_clog10 \
 	     s_fma s_lrint s_llrint s_lround s_llround e_exp10 w_log2	\
-	     s_isinf_ns $(calls:s_%=m_%) x2y2m1 k_casinh
+	     s_isinf_ns s_issignaling $(calls:s_%=m_%) x2y2m1 k_casinh
 
 include ../Makeconfig
 

Modified: fsf/trunk/libc/math/Versions
==============================================================================
--- fsf/trunk/libc/math/Versions (original)
+++ fsf/trunk/libc/math/Versions Wed Apr  3 00:02:15 2013
@@ -198,4 +198,7 @@
     __gamma_r_finite; __gammaf_r_finite; __gammal_r_finite;
     __exp_finite; __expf_finite; __expl_finite;
   }
+  GLIBC_2.18 {
+    __issignaling; __issignalingf; __issignalingl;
+  }
 }

Modified: fsf/trunk/libc/math/basic-test.c
==============================================================================
--- fsf/trunk/libc/math/basic-test.c (original)
+++ fsf/trunk/libc/math/basic-test.c Wed Apr  3 00:02:15 2013
@@ -19,6 +19,9 @@
 #include <math.h>
 #include <float.h>
 #include <stdio.h>
+
+#include <math-tests.h>
+
 
 static int errors = 0;
 
@@ -39,6 +42,10 @@
   /* Variables are declared volatile to forbid some compiler		      \
      optimizations.  */							      \
   volatile FLOAT Inf_var, qNaN_var, zero_var, one_var;			      \
+  /* A sNaN is only guaranteed to be representable in variables with */	      \
+  /* static (or thread-local) storage duration.  */			      \
+  static volatile FLOAT sNaN_var = __builtin_nans ## SUFFIX ("");	      \
+  static volatile FLOAT minus_sNaN_var = -__builtin_nans ## SUFFIX ("");      \
   FLOAT x1, x2;								      \
 									      \
   zero_var = 0.0;							      \
@@ -49,6 +56,8 @@
   (void) &zero_var;							      \
   (void) &one_var;							      \
   (void) &qNaN_var;							      \
+  (void) &sNaN_var;							      \
+  (void) &minus_sNaN_var;						      \
   (void) &Inf_var;							      \
 									      \
 									      \
@@ -56,16 +65,41 @@
   check (#FLOAT " isinf (-inf) == -1", isinf (-Inf_var) == -1);		      \
   check (#FLOAT " !isinf (1)", !(isinf (one_var)));			      \
   check (#FLOAT " !isinf (qNaN)", !(isinf (qNaN_var)));			      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " !isinf (sNaN)", !(isinf (sNaN_var)));		      \
 									      \
   check (#FLOAT " isnan (qNaN)", isnan (qNaN_var));			      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " isnan (sNaN)", isnan (sNaN_var));			      \
   check (#FLOAT " isnan (-qNaN)", isnan (-qNaN_var));			      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " isnan (-sNaN)", isnan (minus_sNaN_var));		      \
   check (#FLOAT " !isnan (1)", !(isnan (one_var)));			      \
   check (#FLOAT " !isnan (inf)", !(isnan (Inf_var)));			      \
+									      \
+  check (#FLOAT " !issignaling (qNaN)", !(issignaling (qNaN_var)));	      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " issignaling (sNaN)", issignaling (sNaN_var));	      \
+  check (#FLOAT " !issignaling (-qNaN)", !(issignaling (-qNaN_var)));	      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " issignaling (-sNaN)", issignaling (minus_sNaN_var));      \
+  check (#FLOAT " !issignaling (1)", !(issignaling (one_var)));		      \
+  check (#FLOAT " !issignaling (inf)", !(issignaling (Inf_var)));	      \
 									      \
   check (#FLOAT " inf == inf", Inf_var == Inf_var);			      \
   check (#FLOAT " -inf == -inf", -Inf_var == -Inf_var);			      \
   check (#FLOAT " inf != -inf", Inf_var != -Inf_var);			      \
   check (#FLOAT " qNaN != qNaN", qNaN_var != qNaN_var);			      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " sNaN != sNaN", sNaN_var != sNaN_var);		      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " qNaN != sNaN", qNaN_var != sNaN_var);		      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " -sNaN != -sNaN", minus_sNaN_var != minus_sNaN_var);	      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " sNaN != -sNaN", sNaN_var != minus_sNaN_var);	      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " qNaN != -sNaN", qNaN_var != minus_sNaN_var);	      \
 									      \
   /*									      \
      the same tests but this time with NAN from <bits/nan.h>		      \
@@ -76,6 +110,11 @@
   check (#FLOAT " !isinf (NAN)", !(isinf (NAN)));			      \
   check (#FLOAT " !isinf (-NAN)", !(isinf (-NAN)));			      \
   check (#FLOAT " NAN != NAN", NAN != NAN);				      \
+  check (#FLOAT " NAN != qNaN", NAN != qNaN_var);			      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " NAN != sNaN", NAN != sNaN_var);			      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " NAN != -sNaN", NAN != minus_sNaN_var);		      \
 									      \
   /*									      \
      And again with the value returned by the `nan' function.		      \
@@ -86,6 +125,12 @@
   check (#FLOAT " !isinf (-nan (\"\"))", !(isinf (-nan ## SUFFIX (""))));     \
   check (#FLOAT " nan (\"\") != nan (\"\")",				      \
 	 nan ## SUFFIX ("") != nan ## SUFFIX (""));			      \
+  check (#FLOAT " nan (\"\") != qNaN", nan ## SUFFIX ("") != qNaN_var);	      \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " nan (\"\") != sNaN", nan ## SUFFIX ("") != sNaN_var);     \
+  if (SNAN_TESTS (FLOAT))						      \
+    check (#FLOAT " nan (\"\") != -sNaN",				      \
+	   nan ## SUFFIX ("") != minus_sNaN_var);			      \
 									      \
   /* test if EPSILON is ok */						      \
   x1 = 1.0;								      \
@@ -108,6 +153,9 @@
 NAME (void)								      \
 {									      \
   volatile DOUBLE Inf_var, qNaN_var, zero_var, one_var;			      \
+  /* A sNaN is only guaranteed to be representable in variables with */	      \
+  /* static (or thread-local) storage duration.  */			      \
+  static volatile DOUBLE sNaN_var = __builtin_nans ## SUFFIX ("");	      \
   FLOAT x1, x2;								      \
 									      \
   zero_var = 0.0;							      \
@@ -116,10 +164,25 @@
   Inf_var = one_var / zero_var;						      \
 									      \
   (void) &qNaN_var;							      \
+  (void) &sNaN_var;							      \
   (void) &Inf_var;							      \
 									      \
   x1 = (FLOAT) qNaN_var;						      \
-  check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") qNaN", isnan (x1) != 0);	      \
+  check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") qNaN, isnan", isnan (x1));     \
+  check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") qNaN, !issignaling",	      \
+	 !issignaling (x1));						      \
+  if (SNAN_TESTS (FLOAT))						      \
+    {									      \
+      x1 = (FLOAT) sNaN_var;						      \
+      check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") sNaN, isnan", isnan (x1)); \
+      if (SNAN_TESTS_TYPE_CAST)						      \
+	{								      \
+	  /* Upon type conversion, a sNaN is converted into a qNaN plus an */ \
+	  /* INVALID exception (not checked here).  */			      \
+	  check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") sNaN, !issignaling",   \
+		 !issignaling (x1));					      \
+	}								      \
+      }									      \
   x2 = (FLOAT) Inf_var;							      \
   check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") Inf", isinf (x2) != 0);	      \
 }

Modified: fsf/trunk/libc/math/bits/mathcalls.h
==============================================================================
--- fsf/trunk/libc/math/bits/mathcalls.h (original)
+++ fsf/trunk/libc/math/bits/mathcalls.h Wed Apr  3 00:02:15 2013
@@ -360,6 +360,12 @@
 __END_NAMESPACE_C99
 #endif
 
+#ifdef __USE_GNU
+/* Test for signaling NaN.  */
+__MATHDECL_1 (int, __issignaling,, (_Mdouble_ __value))
+     __attribute__ ((__const__));
+#endif
+
 #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
 /* Return X times (2 to the Nth power).  */
 __MATHCALL (scalb,, (_Mdouble_ __x, _Mdouble_ __n));

Modified: fsf/trunk/libc/math/gen-libm-test.pl
==============================================================================
--- fsf/trunk/libc/math/gen-libm-test.pl (original)
+++ fsf/trunk/libc/math/gen-libm-test.pl Wed Apr  3 00:02:15 2013
@@ -322,7 +322,7 @@
   }
   # Special handling for some macros:
   $cline .= " (\"$str\", ";
-  if ($args[0] =~ /fpclassify|isnormal|isfinite|isinf|isnan|signbit
+  if ($args[0] =~ /fpclassify|isnormal|isfinite|isinf|isnan|issignaling|signbit
       |isgreater|isgreaterequal|isless|islessequal
       |islessgreater|isunordered/x) {
     $c_call = "$args[0] (";

Modified: fsf/trunk/libc/math/libm-test.inc
==============================================================================
--- fsf/trunk/libc/math/libm-test.inc (original)
+++ fsf/trunk/libc/math/libm-test.inc Wed Apr  3 00:02:15 2013
@@ -42,7 +42,7 @@
    cbrt, ceil, copysign, cos, cosh, erf, erfc, exp, exp10, exp2, expm1,
    fabs, fdim, finite, floor, fma, fmax, fmin, fmod, fpclassify,
    frexp, gamma, hypot,
-   ilogb, isfinite, isinf, isnan, isnormal,
+   ilogb, isfinite, isinf, isnan, isnormal, issignaling,
    isless, islessequal, isgreater, isgreaterequal, islessgreater, isunordered,
    j0, j1, jn,
    ldexp, lgamma, log, log10, log1p, log2, logb,
@@ -87,9 +87,8 @@
    aren't checked at the moment.
 
    NaN values: There exist signalling and quiet NaNs.  This implementation
-   only uses quiet NaN as parameter but does not differentiate
-   between the two kinds of NaNs as result.  Where the sign of a NaN is
-   significant, this is not tested.
+   only uses quiet NaN as parameter.  Where the sign of a NaN is
+   significant, this is not tested.  The payload of NaNs is not examined.
 
    Inline functions: Inlining functions should give an improvement in
    speed - but not in precission.  The inlined functions return
@@ -264,6 +263,19 @@
     *curr_max_error = current;
 }
 
+
+/* Print a FLOAT.  */
+static void
+print_float (FLOAT f)
+{
+  /* As printf doesn't differ between a sNaN and a qNaN, do this manually.  */
+  if (issignaling (f))
+    printf ("sNaN\n");
+  else if (isnan (f))
+    printf ("qNaN\n");
+  else
+    printf ("% .20" PRINTF_EXPR "  % .20" PRINTF_XEXPR "\n", f, f);
+}
 
 /* Should the message print to screen?  This depends on the verbose flag,
    and the test status.  */
@@ -534,7 +546,11 @@
   FLOAT ulp = 0;
 
   test_exceptions (test_name, exceptions);
-  if (isnan (computed) && isnan (expected))
+  if (issignaling (computed) && issignaling (expected))
+    ok = 1;
+  else if (issignaling (computed) || issignaling (expected))
+    ok = 0;
+  else if (isnan (computed) && isnan (expected))
     ok = 1;
   else if (isinf (computed) && isinf (expected))
     {
@@ -548,8 +564,9 @@
       else
 	ok = 1;
     }
-  /* Don't calc ulp for NaNs or infinities.  */
-  else if (isinf (computed) || isnan (computed) || isinf (expected) || isnan (expected))
+  /* Don't calculate ULPs for infinities or any kind of NaNs.  */
+  else if (isinf (computed) || isnan (computed)
+	   || isinf (expected) || isnan (expected))
     ok = 0;
   else
     {
@@ -594,10 +611,10 @@
 	printf ("Failure: ");
       printf ("Test: %s\n", test_name);
       printf ("Result:\n");
-      printf (" is:         % .20" PRINTF_EXPR "  % .20" PRINTF_XEXPR "\n",
-	      computed, computed);
-      printf (" should be:  % .20" PRINTF_EXPR "  % .20" PRINTF_XEXPR "\n",
-	      expected, expected);
+      printf (" is:         ");
+      print_float (computed);
+      printf (" should be:  ");
+      print_float (expected);
       if (print_diff)
 	{
 	  printf (" difference: % .20" PRINTF_EXPR "  % .20" PRINTF_XEXPR
@@ -2148,6 +2165,606 @@
   TEST_c_c (cacosh, 1.0L, minus_zero, plus_zero, minus_zero);
   TEST_c_c (cacosh, 1.5L, plus_zero, 0.9624236501192068949955178268487368462704L, plus_zero);
   TEST_c_c (cacosh, 1.5L, minus_zero, 0.9624236501192068949955178268487368462704L, minus_zero);
+
+  TEST_c_c (cacosh, 0x1p50L, 1.0L, 3.535050620855721078027883819436720218708e1L, 8.881784197001252323389053344727730248720e-16L);
+  TEST_c_c (cacosh, 0x1p50L, -1.0L, 3.535050620855721078027883819436720218708e1L, -8.881784197001252323389053344727730248720e-16L);
+  TEST_c_c (cacosh, -0x1p50L, 1.0L, 3.535050620855721078027883819436720218708e1L, 3.141592653589792350284223683154270545292L);
+  TEST_c_c (cacosh, -0x1p50L, -1.0L, 3.535050620855721078027883819436720218708e1L, -3.141592653589792350284223683154270545292L);
+  TEST_c_c (cacosh, 1.0L, 0x1p50L, 3.535050620855721078027883819436759661753e1L, 1.570796326794895731052901991514519103193L);
+  TEST_c_c (cacosh, -1.0L, 0x1p50L, 3.535050620855721078027883819436759661753e1L, 1.570796326794897507409741391764983781004L);
+  TEST_c_c (cacosh, 1.0L, -0x1p50L, 3.535050620855721078027883819436759661753e1L, -1.570796326794895731052901991514519103193L);
+  TEST_c_c (cacosh, -1.0L, -0x1p50L, 3.535050620855721078027883819436759661753e1L, -1.570796326794897507409741391764983781004L);
+#ifndef TEST_FLOAT
+  TEST_c_c (cacosh, 0x1p500L, 1.0L, 3.472667374605326000180332928505464606058e2L, 3.054936363499604682051979393213617699789e-151L);
+  TEST_c_c (cacosh, 0x1p500L, -1.0L, 3.472667374605326000180332928505464606058e2L, -3.054936363499604682051979393213617699789e-151L);
+  TEST_c_c (cacosh, -0x1p500L, 1.0L, 3.472667374605326000180332928505464606058e2L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, -0x1p500L, -1.0L, 3.472667374605326000180332928505464606058e2L, -3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 1.0L, 0x1p500L, 3.472667374605326000180332928505464606058e2L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -1.0L, 0x1p500L, 3.472667374605326000180332928505464606058e2L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 1.0L, -0x1p500L, 3.472667374605326000180332928505464606058e2L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -1.0L, -0x1p500L, 3.472667374605326000180332928505464606058e2L, -1.570796326794896619231321691639751442099L);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MAX_EXP >= 16384
+  TEST_c_c (cacosh, 0x1p5000L, 1.0L, 3.466429049980286492395577839412341016946e3L, 7.079811261048172892385615158694057552948e-1506L);
+  TEST_c_c (cacosh, 0x1p5000L, -1.0L, 3.466429049980286492395577839412341016946e3L, -7.079811261048172892385615158694057552948e-1506L);
+  TEST_c_c (cacosh, -0x1p5000L, 1.0L, 3.466429049980286492395577839412341016946e3L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, -0x1p5000L, -1.0L, 3.466429049980286492395577839412341016946e3L, -3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 1.0L, 0x1p5000L, 3.466429049980286492395577839412341016946e3L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -1.0L, 0x1p5000L, 3.466429049980286492395577839412341016946e3L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 1.0L, -0x1p5000L, 3.466429049980286492395577839412341016946e3L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -1.0L, -0x1p5000L, 3.466429049980286492395577839412341016946e3L, -1.570796326794896619231321691639751442099L);
+#endif
+  TEST_c_c (cacosh, 0x1.fp127L, 0x1.fp127L, 8.973081118419833726837456344608533993585e1L, 7.853981633974483096156608458198757210493e-1L);
+#ifndef TEST_FLOAT
+  TEST_c_c (cacosh, 0x1.fp1023L, 0x1.fp1023L, 7.107906849659093345062145442726115449315e2L, 7.853981633974483096156608458198757210493e-1L);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MAX_EXP >= 16384
+  TEST_c_c (cacosh, 0x1.fp16383L, 0x1.fp16383L, 1.135753137836666928715489992987020363057e4L, 7.853981633974483096156608458198757210493e-1L);
+#endif
+  TEST_c_c (cacosh, 0x1.fp-129L, 1.5L, 1.194763217287109304111930828519090523536L, 1.570796326794896619231321691639751442097L);
+  TEST_c_c (cacosh, 0x1.fp-129L, -1.5L, 1.194763217287109304111930828519090523536L, -1.570796326794896619231321691639751442097L);
+  TEST_c_c (cacosh, -0x1.fp-129L, 1.5L, 1.194763217287109304111930828519090523536L, 1.570796326794896619231321691639751442100L);
+  TEST_c_c (cacosh, -0x1.fp-129L, -1.5L, 1.194763217287109304111930828519090523536L, -1.570796326794896619231321691639751442100L);
+  TEST_c_c (cacosh, 1.5L, 0x1.fp-129L, 9.624236501192068949955178268487368462704e-1L, 2.546345110742945032959687790021055102355e-39L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, -1.5L, 0x1.fp-129L, 9.624236501192068949955178268487368462704e-1L, 3.141592653589793238462643383279502884195L);
+  TEST_c_c (cacosh, 1.5L, -0x1.fp-129L, 9.624236501192068949955178268487368462704e-1L, -2.546345110742945032959687790021055102355e-39L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, -1.5L, -0x1.fp-129L, 9.624236501192068949955178268487368462704e-1L, -3.141592653589793238462643383279502884195L);
+#ifndef TEST_FLOAT
+  TEST_c_c (cacosh, 0x1.fp-1025L, 1.5L, 1.194763217287109304111930828519090523536L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, -1.5L, 1.194763217287109304111930828519090523536L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, 1.5L, 1.194763217287109304111930828519090523536L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, -1.5L, 1.194763217287109304111930828519090523536L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 1.5L, 0x1.fp-1025L, 9.624236501192068949955178268487368462704e-1L, 4.819934639999230680322935210539402497827e-309L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, -1.5L, 0x1.fp-1025L, 9.624236501192068949955178268487368462704e-1L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 1.5L, -0x1.fp-1025L, 9.624236501192068949955178268487368462704e-1L, -4.819934639999230680322935210539402497827e-309L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, -1.5L, -0x1.fp-1025L, 9.624236501192068949955178268487368462704e-1L, -3.141592653589793238462643383279502884197L);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MIN_EXP <= -16381
+  TEST_c_c (cacosh, 0x1.fp-16385L, 1.5L, 1.194763217287109304111930828519090523536L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-16385L, -1.5L, 1.194763217287109304111930828519090523536L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, 1.5L, 1.194763217287109304111930828519090523536L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, -1.5L, 1.194763217287109304111930828519090523536L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 1.5L, 0x1.fp-16385L, 9.624236501192068949955178268487368462704e-1L, 7.282957076134209141226696333885150260319e-4933L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (cacosh, -1.5L, 0x1.fp-16385L, 9.624236501192068949955178268487368462704e-1L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 1.5L, -0x1.fp-16385L, 9.624236501192068949955178268487368462704e-1L, -7.282957076134209141226696333885150260319e-4933L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (cacosh, -1.5L, -0x1.fp-16385L, 9.624236501192068949955178268487368462704e-1L, -3.141592653589793238462643383279502884197L);
+#endif
+  TEST_c_c (cacosh, 0.5L, 1.0L, 9.261330313501824245501244453057873152694e-1L, 1.221357263937683325603909865564381489366L);
+  TEST_c_c (cacosh, 0.5L, -1.0L, 9.261330313501824245501244453057873152694e-1L, -1.221357263937683325603909865564381489366L);
+  TEST_c_c (cacosh, -0.5L, 1.0L, 9.261330313501824245501244453057873152694e-1L, 1.920235389652109912858733517715121394831L);
+  TEST_c_c (cacosh, -0.5L, -1.0L, 9.261330313501824245501244453057873152694e-1L, -1.920235389652109912858733517715121394831L);
+  TEST_c_c (cacosh, 1.0L, 0.5L, 7.328576759736452608886724437653071523305e-1L, 6.748888455860063801646649673121744318756e-1L);
+  TEST_c_c (cacosh, -1.0L, 0.5L, 7.328576759736452608886724437653071523305e-1L, 2.466703808003786858297978415967328452322L);
+  TEST_c_c (cacosh, 1.0L, -0.5L, 7.328576759736452608886724437653071523305e-1L, -6.748888455860063801646649673121744318756e-1L);
+  TEST_c_c (cacosh, -1.0L, -0.5L, 7.328576759736452608886724437653071523305e-1L, -2.466703808003786858297978415967328452322L);
+  TEST_c_c (cacosh, 0.25L, 1.0L, 8.924633639033482359562124741744951972772e-1L, 1.394493894017929688812643125003661339452L);
+  TEST_c_c (cacosh, 0.25L, -1.0L, 8.924633639033482359562124741744951972772e-1L, -1.394493894017929688812643125003661339452L);
+  TEST_c_c (cacosh, -0.25L, 1.0L, 8.924633639033482359562124741744951972772e-1L, 1.747098759571863549650000258275841544745L);
+  TEST_c_c (cacosh, -0.25L, -1.0L, 8.924633639033482359562124741744951972772e-1L, -1.747098759571863549650000258275841544745L);
+  TEST_c_c (cacosh, 1.0L, 0.25L, 5.097911466811016354623559941115413499164e-1L, 4.890443302710802929202843732146540079124e-1L);
+  TEST_c_c (cacosh, -1.0L, 0.25L, 5.097911466811016354623559941115413499164e-1L, 2.652548323318712945542359010064848876285L);
+  TEST_c_c (cacosh, 1.0L, -0.25L, 5.097911466811016354623559941115413499164e-1L, -4.890443302710802929202843732146540079124e-1L);
+  TEST_c_c (cacosh, -1.0L, -0.25L, 5.097911466811016354623559941115413499164e-1L, -2.652548323318712945542359010064848876285L);
+  TEST_c_c (cacosh, 0x1.fp-10L, 1.0L, 8.813742198809567991336704287826445879025e-1L, 1.569458417435338878318763342108699202986L);
+  TEST_c_c (cacosh, 0x1.fp-10L, -1.0L, 8.813742198809567991336704287826445879025e-1L, -1.569458417435338878318763342108699202986L);
+  TEST_c_c (cacosh, -0x1.fp-10L, 1.0L, 8.813742198809567991336704287826445879025e-1L, 1.572134236154454360143880041170803681211L);
+  TEST_c_c (cacosh, -0x1.fp-10L, -1.0L, 8.813742198809567991336704287826445879025e-1L, -1.572134236154454360143880041170803681211L);
+  TEST_c_c (cacosh, 1.0L, 0x1.fp-10L, 4.350501469856803800217957402220976497152e-2L, 4.349129763101882771258049954181971959031e-2L);
+  TEST_c_c (cacosh, -1.0L, 0x1.fp-10L, 4.350501469856803800217957402220976497152e-2L, 3.098101355958774410750062883737683164607L);
+  TEST_c_c (cacosh, 1.0L, -0x1.fp-10L, 4.350501469856803800217957402220976497152e-2L, -4.349129763101882771258049954181971959031e-2L);
+  TEST_c_c (cacosh, -1.0L, -0x1.fp-10L, 4.350501469856803800217957402220976497152e-2L, -3.098101355958774410750062883737683164607L);
+  TEST_c_c (cacosh, 0x1.fp-30L, 1.0L, 8.813735870195430258081932989769495326854e-1L, 1.570796325518966635014803151387033957091L);
+  TEST_c_c (cacosh, 0x1.fp-30L, -1.0L, 8.813735870195430258081932989769495326854e-1L, -1.570796325518966635014803151387033957091L);
+  TEST_c_c (cacosh, -0x1.fp-30L, 1.0L, 8.813735870195430258081932989769495326854e-1L, 1.570796328070826603447840231892468927106L);
+  TEST_c_c (cacosh, -0x1.fp-30L, -1.0L, 8.813735870195430258081932989769495326854e-1L, -1.570796328070826603447840231892468927106L);
+  TEST_c_c (cacosh, 1.0L, 0x1.fp-30L, 4.247867098745151888768727039216644758847e-5L, 4.247867097467650115899790787875186617316e-5L);
+  TEST_c_c (cacosh, -1.0L, 0x1.fp-30L, 4.247867098745151888768727039216644758847e-5L, 3.141550174918818561961484385371624132331L);
+  TEST_c_c (cacosh, 1.0L, -0x1.fp-30L, 4.247867098745151888768727039216644758847e-5L, -4.247867097467650115899790787875186617316e-5L);
+  TEST_c_c (cacosh, -1.0L, -0x1.fp-30L, 4.247867098745151888768727039216644758847e-5L, -3.141550174918818561961484385371624132331L);
+  TEST_c_c (cacosh, 0x1.fp-100L, 1.0L, 8.813735870195430252326093249797923090282e-1L, 1.570796326794896619231321691638670687364L);
+  TEST_c_c (cacosh, 0x1.fp-100L, -1.0L, 8.813735870195430252326093249797923090282e-1L, -1.570796326794896619231321691638670687364L);
+  TEST_c_c (cacosh, -0x1.fp-100L, 1.0L, 8.813735870195430252326093249797923090282e-1L, 1.570796326794896619231321691640832196834L);
+  TEST_c_c (cacosh, -0x1.fp-100L, -1.0L, 8.813735870195430252326093249797923090282e-1L, -1.570796326794896619231321691640832196834L);
+  TEST_c_c (cacosh, 1.0L, 0x1.fp-100L, 1.236292038260260888664514866457202186027e-15L, 1.236292038260260888664514866456887257525e-15L);
+  TEST_c_c (cacosh, -1.0L, 0x1.fp-100L, 1.236292038260260888664514866457202186027e-15L, 3.141592653589792002170605123018614219682L);
+  TEST_c_c (cacosh, 1.0L, -0x1.fp-100L, 1.236292038260260888664514866457202186027e-15L, -1.236292038260260888664514866456887257525e-15L);
+  TEST_c_c (cacosh, -1.0L, -0x1.fp-100L, 1.236292038260260888664514866457202186027e-15L, -3.141592653589792002170605123018614219682L);
+  TEST_c_c (cacosh, 0x1.fp-129L, 1.0L, 8.813735870195430252326093249797923090282e-1L, 1.570796326794896619231321691639751442097L);
+  TEST_c_c (cacosh, 0x1.fp-129L, -1.0L, 8.813735870195430252326093249797923090282e-1L, -1.570796326794896619231321691639751442097L);
+  TEST_c_c (cacosh, -0x1.fp-129L, 1.0L, 8.813735870195430252326093249797923090282e-1L, 1.570796326794896619231321691639751442101L);
+  TEST_c_c (cacosh, -0x1.fp-129L, -1.0L, 8.813735870195430252326093249797923090282e-1L, -1.570796326794896619231321691639751442101L);
+  TEST_c_c (cacosh, 1.0L, 0x1.fp-129L, 5.335635276982233498398987585285818977933e-20L, 5.335635276982233498398987585285818977930e-20L);
+  TEST_c_c (cacosh, -1.0L, 0x1.fp-129L, 5.335635276982233498398987585285818977933e-20L, 3.141592653589793238409287030509680549213L);
+  TEST_c_c (cacosh, 1.0L, -0x1.fp-129L, 5.335635276982233498398987585285818977933e-20L, -5.335635276982233498398987585285818977930e-20L);
+  TEST_c_c (cacosh, -1.0L, -0x1.fp-129L, 5.335635276982233498398987585285818977933e-20L, -3.141592653589793238409287030509680549213L);
+#ifndef TEST_FLOAT
+  TEST_c_c (cacosh, 0x1.fp-1000L, 1.0L, 8.813735870195430252326093249797923090282e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-1000L, -1.0L, 8.813735870195430252326093249797923090282e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1000L, 1.0L, 8.813735870195430252326093249797923090282e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1000L, -1.0L, 8.813735870195430252326093249797923090282e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 1.0L, 0x1.fp-1000L, 4.252291453851660175550490409247739011867e-151L, 4.252291453851660175550490409247739011867e-151L);
+  TEST_c_c (cacosh, -1.0L, 0x1.fp-1000L, 4.252291453851660175550490409247739011867e-151L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 1.0L, -0x1.fp-1000L, 4.252291453851660175550490409247739011867e-151L, -4.252291453851660175550490409247739011867e-151L);
+  TEST_c_c (cacosh, -1.0L, -0x1.fp-1000L, 4.252291453851660175550490409247739011867e-151L, -3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, 1.0L, 8.813735870195430252326093249797923090282e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, -1.0L, 8.813735870195430252326093249797923090282e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, 1.0L, 8.813735870195430252326093249797923090282e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, -1.0L, 8.813735870195430252326093249797923090282e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 1.0L, 0x1.fp-1025L, 7.340879205566679497036857179189356754017e-155L, 7.340879205566679497036857179189356754017e-155L);
+  TEST_c_c (cacosh, -1.0L, 0x1.fp-1025L, 7.340879205566679497036857179189356754017e-155L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 1.0L, -0x1.fp-1025L, 7.340879205566679497036857179189356754017e-155L, -7.340879205566679497036857179189356754017e-155L);
+  TEST_c_c (cacosh, -1.0L, -0x1.fp-1025L, 7.340879205566679497036857179189356754017e-155L, -3.141592653589793238462643383279502884197L);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MIN_EXP <= -16381
+  TEST_c_c (cacosh, 0x1.fp-10000L, 1.0L, 8.813735870195430252326093249797923090282e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-10000L, -1.0L, 8.813735870195430252326093249797923090282e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-10000L, 1.0L, 8.813735870195430252326093249797923090282e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-10000L, -1.0L, 8.813735870195430252326093249797923090282e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 1.0L, 0x1.fp-10000L, 9.854680208706673586644342922051388714633e-1506L, 9.854680208706673586644342922051388714633e-1506L);
+  TEST_c_c (cacosh, -1.0L, 0x1.fp-10000L, 9.854680208706673586644342922051388714633e-1506L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 1.0L, -0x1.fp-10000L, 9.854680208706673586644342922051388714633e-1506L, -9.854680208706673586644342922051388714633e-1506L);
+  TEST_c_c (cacosh, -1.0L, -0x1.fp-10000L, 9.854680208706673586644342922051388714633e-1506L, -3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0x1.fp-16385L, 1.0L, 8.813735870195430252326093249797923090282e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-16385L, -1.0L, 8.813735870195430252326093249797923090282e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, 1.0L, 8.813735870195430252326093249797923090282e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, -1.0L, 8.813735870195430252326093249797923090282e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 1.0L, 0x1.fp-16385L, 9.023632056840860275214893047597614177639e-2467L, 9.023632056840860275214893047597614177639e-2467L);
+  TEST_c_c (cacosh, -1.0L, 0x1.fp-16385L, 9.023632056840860275214893047597614177639e-2467L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 1.0L, -0x1.fp-16385L, 9.023632056840860275214893047597614177639e-2467L, -9.023632056840860275214893047597614177639e-2467L);
+  TEST_c_c (cacosh, -1.0L, -0x1.fp-16385L, 9.023632056840860275214893047597614177639e-2467L, -3.141592653589793238462643383279502884197L);
+#endif
+  TEST_c_c (cacosh, 0x1p-23L, 0x1.000002p0L, 8.813736713132400470205730751186547909968e-1L, 1.570796242501204621739026081991856762292L);
+  TEST_c_c (cacosh, 0x1p-23L, -0x1.000002p0L, 8.813736713132400470205730751186547909968e-1L, -1.570796242501204621739026081991856762292L);
+  TEST_c_c (cacosh, -0x1p-23L, 0x1.000002p0L, 8.813736713132400470205730751186547909968e-1L, 1.570796411088588616723617301287646121905L);
+  TEST_c_c (cacosh, -0x1p-23L, -0x1.000002p0L, 8.813736713132400470205730751186547909968e-1L, -1.570796411088588616723617301287646121905L);
+  TEST_c_c (cacosh, 0x1.000002p0L, 0x1p-23L, 5.364668491573609633134147164031476452679e-4L, 2.222118384408546368406374049167636760903e-4L);
+  TEST_c_c (cacosh, -0x1.000002p0L, 0x1p-23L, 5.364668491573609633134147164031476452679e-4L, 3.141370441751352383825802745874586120521L);
+  TEST_c_c (cacosh, 0x1.000002p0L, -0x1p-23L, 5.364668491573609633134147164031476452679e-4L, -2.222118384408546368406374049167636760903e-4L);
+  TEST_c_c (cacosh, -0x1.000002p0L, -0x1p-23L, 5.364668491573609633134147164031476452679e-4L, -3.141370441751352383825802745874586120521L);
+  TEST_c_c (cacosh, 0x1.fp-129L, 0x1.000002p0L, 8.813736713132375348727889167749389235161e-1L, 1.570796326794896619231321691639751442097L);
+  TEST_c_c (cacosh, 0x1.fp-129L, -0x1.000002p0L, 8.813736713132375348727889167749389235161e-1L, -1.570796326794896619231321691639751442097L);
+  TEST_c_c (cacosh, -0x1.fp-129L, 0x1.000002p0L, 8.813736713132375348727889167749389235161e-1L, 1.570796326794896619231321691639751442101L);
+  TEST_c_c (cacosh, -0x1.fp-129L, -0x1.000002p0L, 8.813736713132375348727889167749389235161e-1L, -1.570796326794896619231321691639751442101L);
+  TEST_c_c (cacosh, 0x1.000002p0L, 0x1.fp-129L, 4.882812451493617206486388134172712975070e-4L, 5.830451806317544230969669308596361881467e-36L);
+  TEST_c_c (cacosh, -0x1.000002p0L, 0x1.fp-129L, 4.882812451493617206486388134172712975070e-4L, 3.141592653589793238462643383279502878367L);
+  TEST_c_c (cacosh, 0x1.000002p0L, -0x1.fp-129L, 4.882812451493617206486388134172712975070e-4L, -5.830451806317544230969669308596361881467e-36L);
+  TEST_c_c (cacosh, -0x1.000002p0L, -0x1.fp-129L, 4.882812451493617206486388134172712975070e-4L, -3.141592653589793238462643383279502878367L);
+  TEST_c_c (cacosh, 0.0L, 0x1.000002p0L, 8.813736713132375348727889167749389235161e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.0L, -0x1.000002p0L, 8.813736713132375348727889167749389235161e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, 0x1.000002p0L, 8.813736713132375348727889167749389235161e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, -0x1.000002p0L, 8.813736713132375348727889167749389235161e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.000002p0L, 0.0L, 4.882812451493617206486388134172712975070e-4L, 0.0L);
+  TEST_c_c (cacosh, -0x1.000002p0L, 0.0L, 4.882812451493617206486388134172712975070e-4L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0x1.000002p0L, -0.0L, 4.882812451493617206486388134172712975070e-4L, -0.0L);
+  TEST_c_c (cacosh, -0x1.000002p0L, -0.0L, 4.882812451493617206486388134172712975070e-4L, -3.141592653589793238462643383279502884197L);
+#ifndef TEST_FLOAT
+  TEST_c_c (cacosh, 0x1p-52L, 0x1.0000000000001p0L, 8.813735870195431822418551933572982483664e-1L, 1.570796326794896462222075823262262934288L);
+  TEST_c_c (cacosh, 0x1p-52L, -0x1.0000000000001p0L, 8.813735870195431822418551933572982483664e-1L, -1.570796326794896462222075823262262934288L);
+  TEST_c_c (cacosh, -0x1p-52L, 0x1.0000000000001p0L, 8.813735870195431822418551933572982483664e-1L, 1.570796326794896776240567560017239949909L);
+  TEST_c_c (cacosh, -0x1p-52L, -0x1.0000000000001p0L, 8.813735870195431822418551933572982483664e-1L, -1.570796326794896776240567560017239949909L);
+  TEST_c_c (cacosh, 0x1.0000000000001p0L, 0x1p-52L, 2.315303644582684770975188768022139415020e-8L, 9.590301705980041385828904092662391018164e-9L);
+  TEST_c_c (cacosh, -0x1.0000000000001p0L, 0x1p-52L, 2.315303644582684770975188768022139415020e-8L, 3.141592643999491532482601997450598791535L);
+  TEST_c_c (cacosh, 0x1.0000000000001p0L, -0x1p-52L, 2.315303644582684770975188768022139415020e-8L, -9.590301705980041385828904092662391018164e-9L);
+  TEST_c_c (cacosh, -0x1.0000000000001p0L, -0x1p-52L, 2.315303644582684770975188768022139415020e-8L, -3.141592643999491532482601997450598791535L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, 0x1.0000000000001p0L, 8.813735870195431822418551933572895326024e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, -0x1.0000000000001p0L, 8.813735870195431822418551933572895326024e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, 0x1.0000000000001p0L, 8.813735870195431822418551933572895326024e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, -0x1.0000000000001p0L, 8.813735870195431822418551933572895326024e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.0000000000001p0L, 0x1.fp-1025L, 2.107342425544701550354780375182800088393e-8L, 2.557178503953494342609835913586108008322e-301L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (cacosh, -0x1.0000000000001p0L, 0x1.fp-1025L, 2.107342425544701550354780375182800088393e-8L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0x1.0000000000001p0L, -0x1.fp-1025L, 2.107342425544701550354780375182800088393e-8L, -2.557178503953494342609835913586108008322e-301L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (cacosh, -0x1.0000000000001p0L, -0x1.fp-1025L, 2.107342425544701550354780375182800088393e-8L, -3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0.0L, 0x1.0000000000001p0L, 8.813735870195431822418551933572895326024e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.0L, -0x1.0000000000001p0L, 8.813735870195431822418551933572895326024e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, 0x1.0000000000001p0L, 8.813735870195431822418551933572895326024e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, -0x1.0000000000001p0L, 8.813735870195431822418551933572895326024e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.0000000000001p0L, 0.0L, 2.107342425544701550354780375182800088393e-8L, 0.0L);
+  TEST_c_c (cacosh, -0x1.0000000000001p0L, 0.0L, 2.107342425544701550354780375182800088393e-8L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0x1.0000000000001p0L, -0.0L, 2.107342425544701550354780375182800088393e-8L, -0.0L);
+  TEST_c_c (cacosh, -0x1.0000000000001p0L, -0.0L, 2.107342425544701550354780375182800088393e-8L, -3.141592653589793238462643383279502884197L);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MANT_DIG >= 64
+  TEST_c_c (cacosh, 0x1p-63L, 0x1.0000000000000002p0L, 8.813735870195430253092739958139610131001e-1L, 1.570796326794896619154657020805582738031L);
+  TEST_c_c (cacosh, 0x1p-63L, -0x1.0000000000000002p0L, 8.813735870195430253092739958139610131001e-1L, -1.570796326794896619154657020805582738031L);
+  TEST_c_c (cacosh, -0x1p-63L, 0x1.0000000000000002p0L, 8.813735870195430253092739958139610131001e-1L, 1.570796326794896619307986362473920146166L);
+  TEST_c_c (cacosh, -0x1p-63L, -0x1.0000000000000002p0L, 8.813735870195430253092739958139610131001e-1L, -1.570796326794896619307986362473920146166L);
+  TEST_c_c (cacosh, 0x1.0000000000000002p0L, 0x1p-63L, 5.116146586219826555037807251857670783420e-10L, 2.119177303101063432592523199680782317447e-10L);
+  TEST_c_c (cacosh, -0x1.0000000000000002p0L, 0x1p-63L, 5.116146586219826555037807251857670783420e-10L, 3.141592653377875508152537040020250564229L);
+  TEST_c_c (cacosh, 0x1.0000000000000002p0L, -0x1p-63L, 5.116146586219826555037807251857670783420e-10L, -2.119177303101063432592523199680782317447e-10L);
+  TEST_c_c (cacosh, -0x1.0000000000000002p0L, -0x1p-63L, 5.116146586219826555037807251857670783420e-10L, -3.141592653377875508152537040020250564229L);
+# if LDBL_MIN_EXP <= -16381
+  TEST_c_c (cacosh, 0x1.fp-16385L, 0x1.0000000000000002p0L, 8.813735870195430253092739958139610130980e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-16385L, -0x1.0000000000000002p0L, 8.813735870195430253092739958139610130980e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, 0x1.0000000000000002p0L, 8.813735870195430253092739958139610130980e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, -0x1.0000000000000002p0L, 8.813735870195430253092739958139610130980e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.0000000000000002p0L, 0x1.fp-16385L, 4.656612873077392578082927418388212703712e-10L, 1.748608650034385653922359120438227480943e-4923L);
+  TEST_c_c (cacosh, -0x1.0000000000000002p0L, 0x1.fp-16385L, 4.656612873077392578082927418388212703712e-10L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0x1.0000000000000002p0L, -0x1.fp-16385L, 4.656612873077392578082927418388212703712e-10L, -1.748608650034385653922359120438227480943e-4923L);
+  TEST_c_c (cacosh, -0x1.0000000000000002p0L, -0x1.fp-16385L, 4.656612873077392578082927418388212703712e-10L, -3.141592653589793238462643383279502884197L);
+# endif
+  TEST_c_c (cacosh, 0.0L, 0x1.0000000000000002p0L, 8.813735870195430253092739958139610130980e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.0L, -0x1.0000000000000002p0L, 8.813735870195430253092739958139610130980e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, 0x1.0000000000000002p0L, 8.813735870195430253092739958139610130980e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, -0x1.0000000000000002p0L, 8.813735870195430253092739958139610130980e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.0000000000000002p0L, 0.0L, 4.656612873077392578082927418388212703712e-10L, 0.0L);
+  TEST_c_c (cacosh, -0x1.0000000000000002p0L, 0.0L, 4.656612873077392578082927418388212703712e-10L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0x1.0000000000000002p0L, -0.0L, 4.656612873077392578082927418388212703712e-10L, -0.0L);
+  TEST_c_c (cacosh, -0x1.0000000000000002p0L, -0.0L, 4.656612873077392578082927418388212703712e-10L, -3.141592653589793238462643383279502884197L);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MANT_DIG >= 106
+  TEST_c_c (cacosh, 0x1p-106L, 0x1.000000000000000000000000008p0L, 8.813735870195430252326093249798097405561e-1L, 1.570796326794896619231321691639742726335L);
+  TEST_c_c (cacosh, 0x1p-106L, -0x1.000000000000000000000000008p0L, 8.813735870195430252326093249798097405561e-1L, -1.570796326794896619231321691639742726335L);
+  TEST_c_c (cacosh, -0x1p-106L, 0x1.000000000000000000000000008p0L, 8.813735870195430252326093249798097405561e-1L, 1.570796326794896619231321691639760157863L);
+  TEST_c_c (cacosh, -0x1p-106L, -0x1.000000000000000000000000008p0L, 8.813735870195430252326093249798097405561e-1L, -1.570796326794896619231321691639760157863L);
+  TEST_c_c (cacosh, 0x1.000000000000000000000000008p0L, 0x1p-106L, 2.285028863093221674154232933662774454211e-16L, 5.394221422390606848017034778914096659726e-17L);
+  TEST_c_c (cacosh, -0x1.000000000000000000000000008p0L, 0x1p-106L, 2.285028863093221674154232933662774454211e-16L, 3.141592653589793184520429159373434404027L);
+  TEST_c_c (cacosh, 0x1.000000000000000000000000008p0L, -0x1p-106L, 2.285028863093221674154232933662774454211e-16L, -5.394221422390606848017034778914096659726e-17L);
+  TEST_c_c (cacosh, -0x1.000000000000000000000000008p0L, -0x1p-106L, 2.285028863093221674154232933662774454211e-16L, -3.141592653589793184520429159373434404027L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, 0x1.000000000000000000000000008p0L, 8.813735870195430252326093249798097405561e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, -0x1.000000000000000000000000008p0L, 8.813735870195430252326093249798097405561e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, 0x1.000000000000000000000000008p0L, 8.813735870195430252326093249798097405561e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, -0x1.000000000000000000000000008p0L, 8.813735870195430252326093249798097405561e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.000000000000000000000000008p0L, 0x1.fp-1025L, 2.220446049250313080847263336181636063482e-16L, 2.426922623448365473354662093431821897807e-293L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (cacosh, -0x1.000000000000000000000000008p0L, 0x1.fp-1025L, 2.220446049250313080847263336181636063482e-16L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0x1.000000000000000000000000008p0L, -0x1.fp-1025L, 2.220446049250313080847263336181636063482e-16L, -2.426922623448365473354662093431821897807e-293L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (cacosh, -0x1.000000000000000000000000008p0L, -0x1.fp-1025L, 2.220446049250313080847263336181636063482e-16L, -3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0.0L, 0x1.000000000000000000000000008p0L, 8.813735870195430252326093249798097405561e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.0L, -0x1.000000000000000000000000008p0L, 8.813735870195430252326093249798097405561e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, 0x1.000000000000000000000000008p0L, 8.813735870195430252326093249798097405561e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, -0x1.000000000000000000000000008p0L, 8.813735870195430252326093249798097405561e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.000000000000000000000000008p0L, 0.0L, 2.220446049250313080847263336181636063482e-16L, 0.0L);
+  TEST_c_c (cacosh, -0x1.000000000000000000000000008p0L, 0.0L, 2.220446049250313080847263336181636063482e-16L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0x1.000000000000000000000000008p0L, -0.0L, 2.220446049250313080847263336181636063482e-16L, -0.0L);
+  TEST_c_c (cacosh, -0x1.000000000000000000000000008p0L, -0.0L, 2.220446049250313080847263336181636063482e-16L, -3.141592653589793238462643383279502884197L);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MANT_DIG >= 113
+  TEST_c_c (cacosh, 0x1p-113L, 0x1.0000000000000000000000000001p0L, 8.813735870195430252326093249797924452120e-1L, 1.570796326794896619231321691639751374007L);
+  TEST_c_c (cacosh, 0x1p-113L, -0x1.0000000000000000000000000001p0L, 8.813735870195430252326093249797924452120e-1L, -1.570796326794896619231321691639751374007L);
+  TEST_c_c (cacosh, -0x1p-113L, 0x1.0000000000000000000000000001p0L, 8.813735870195430252326093249797924452120e-1L, 1.570796326794896619231321691639751510190L);
+  TEST_c_c (cacosh, -0x1p-113L, -0x1.0000000000000000000000000001p0L, 8.813735870195430252326093249797924452120e-1L, -1.570796326794896619231321691639751510190L);
+  TEST_c_c (cacosh, 0x1.0000000000000000000000000001p0L, 0x1p-113L, 2.019699255375255198156433710951064632386e-17L, 4.767863183742677481693563511435642755521e-18L);
+  TEST_c_c (cacosh, -0x1.0000000000000000000000000001p0L, 0x1p-113L, 2.019699255375255198156433710951064632386e-17L, 3.141592653589793233694780199536825402504L);
+  TEST_c_c (cacosh, 0x1.0000000000000000000000000001p0L, -0x1p-113L, 2.019699255375255198156433710951064632386e-17L, -4.767863183742677481693563511435642755521e-18L);
+  TEST_c_c (cacosh, -0x1.0000000000000000000000000001p0L, -0x1p-113L, 2.019699255375255198156433710951064632386e-17L, -3.141592653589793233694780199536825402504L);
+  TEST_c_c (cacosh, 0x1.fp-16385L, 0x1.0000000000000000000000000001p0L, 8.813735870195430252326093249797924452120e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-16385L, -0x1.0000000000000000000000000001p0L, 8.813735870195430252326093249797924452120e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, 0x1.0000000000000000000000000001p0L, 8.813735870195430252326093249797924452120e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, -0x1.0000000000000000000000000001p0L, 8.813735870195430252326093249797924452120e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.0000000000000000000000000001p0L, 0x1.fp-16385L, 1.962615573354718824241727964954454332780e-17L, 4.148847925325683229178506116378864361396e-4916L);
+  TEST_c_c (cacosh, -0x1.0000000000000000000000000001p0L, 0x1.fp-16385L, 1.962615573354718824241727964954454332780e-17L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0x1.0000000000000000000000000001p0L, -0x1.fp-16385L, 1.962615573354718824241727964954454332780e-17L, -4.148847925325683229178506116378864361396e-4916L);
+  TEST_c_c (cacosh, -0x1.0000000000000000000000000001p0L, -0x1.fp-16385L, 1.962615573354718824241727964954454332780e-17L, -3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0.0L, 0x1.0000000000000000000000000001p0L, 8.813735870195430252326093249797924452120e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.0L, -0x1.0000000000000000000000000001p0L, 8.813735870195430252326093249797924452120e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, 0x1.0000000000000000000000000001p0L, 8.813735870195430252326093249797924452120e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, -0x1.0000000000000000000000000001p0L, 8.813735870195430252326093249797924452120e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.0000000000000000000000000001p0L, 0.0L, 1.962615573354718824241727964954454332780e-17L, 0.0L);
+  TEST_c_c (cacosh, -0x1.0000000000000000000000000001p0L, 0.0L, 1.962615573354718824241727964954454332780e-17L, 3.141592653589793238462643383279502884197L);
+  TEST_c_c (cacosh, 0x1.0000000000000000000000000001p0L, -0.0L, 1.962615573354718824241727964954454332780e-17L, -0.0L);
+  TEST_c_c (cacosh, -0x1.0000000000000000000000000001p0L, -0.0L, 1.962615573354718824241727964954454332780e-17L, -3.141592653589793238462643383279502884197L);
+#endif
+  TEST_c_c (cacosh, 0x1p-23L, 0x0.ffffffp0L, 8.813735448726963984495965873956465777250e-1L, 1.570796242501197085295336701632142060969L);
+  TEST_c_c (cacosh, 0x1p-23L, -0x0.ffffffp0L, 8.813735448726963984495965873956465777250e-1L, -1.570796242501197085295336701632142060969L);
+  TEST_c_c (cacosh, -0x1p-23L, 0x0.ffffffp0L, 8.813735448726963984495965873956465777250e-1L, 1.570796411088596153167306681647360823228L);
+  TEST_c_c (cacosh, -0x1p-23L, -0x0.ffffffp0L, 8.813735448726963984495965873956465777250e-1L, -1.570796411088596153167306681647360823228L);
+  TEST_c_c (cacosh, 0x0.ffffffp0L, 0x1p-23L, 2.714321200917194650737217746780928423385e-4L, 4.391863861910487109445187743978204002614e-4L);
+  TEST_c_c (cacosh, -0x0.ffffffp0L, 0x1p-23L, 2.714321200917194650737217746780928423385e-4L, 3.141153467203602189751698864505105063797L);
+  TEST_c_c (cacosh, 0x0.ffffffp0L, -0x1p-23L, 2.714321200917194650737217746780928423385e-4L, -4.391863861910487109445187743978204002614e-4L);
+  TEST_c_c (cacosh, -0x0.ffffffp0L, -0x1p-23L, 2.714321200917194650737217746780928423385e-4L, -3.141153467203602189751698864505105063797L);
+  TEST_c_c (cacosh, 0x1.fp-129L, 0x0.ffffffp0L, 8.813735448726938863015878255140556727969e-1L, 1.570796326794896619231321691639751442097L);
+  TEST_c_c (cacosh, 0x1.fp-129L, -0x0.ffffffp0L, 8.813735448726938863015878255140556727969e-1L, -1.570796326794896619231321691639751442097L);
+  TEST_c_c (cacosh, -0x1.fp-129L, 0x0.ffffffp0L, 8.813735448726938863015878255140556727969e-1L, 1.570796326794896619231321691639751442101L);
+  TEST_c_c (cacosh, -0x1.fp-129L, -0x0.ffffffp0L, 8.813735448726938863015878255140556727969e-1L, -1.570796326794896619231321691639751442101L);
+  TEST_c_c (cacosh, 0x0.ffffffp0L, 0x1.fp-129L, 8.245504387859737323891843603996428534945e-36L, 3.452669847162035876032494826387364972849e-4L);
+  TEST_c_c (cacosh, -0x0.ffffffp0L, 0x1.fp-129L, 8.245504387859737323891843603996428534945e-36L, 3.141247386605077034875040133796864147700L);
+  TEST_c_c (cacosh, 0x0.ffffffp0L, -0x1.fp-129L, 8.245504387859737323891843603996428534945e-36L, -3.452669847162035876032494826387364972849e-4L);
+  TEST_c_c (cacosh, -0x0.ffffffp0L, -0x1.fp-129L, 8.245504387859737323891843603996428534945e-36L, -3.141247386605077034875040133796864147700L);
+  TEST_c_c (cacosh, 0.0L, 0x0.ffffffp0L, 8.813735448726938863015878255140556727969e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.0L, -0x0.ffffffp0L, 8.813735448726938863015878255140556727969e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, 0x0.ffffffp0L, 8.813735448726938863015878255140556727969e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, -0x0.ffffffp0L, 8.813735448726938863015878255140556727969e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x0.ffffffp0L, 0.0L, 0.0L, 3.452669847162035876032494826387364972849e-4L);
+  TEST_c_c (cacosh, -0x0.ffffffp0L, 0.0L, 0.0L, 3.141247386605077034875040133796864147700L);
+  TEST_c_c (cacosh, 0x0.ffffffp0L, -0.0L, 0.0L, -3.452669847162035876032494826387364972849e-4L);
+  TEST_c_c (cacosh, -0x0.ffffffp0L, -0.0L, 0.0L, -3.141247386605077034875040133796864147700L);
+  TEST_c_c (cacosh, 0x1p-23L, 0.5L, 4.812118250596059896127318386463676808798e-1L, 1.570796220170866625230343643673321150378L);
+  TEST_c_c (cacosh, 0x1p-23L, -0.5L, 4.812118250596059896127318386463676808798e-1L, -1.570796220170866625230343643673321150378L);
+  TEST_c_c (cacosh, -0x1p-23L, 0.5L, 4.812118250596059896127318386463676808798e-1L, 1.570796433418926613232299739606181733819L);
+  TEST_c_c (cacosh, -0x1p-23L, -0.5L, 4.812118250596059896127318386463676808798e-1L, -1.570796433418926613232299739606181733819L);
+  TEST_c_c (cacosh, 0.5L, 0x1p-23L, 1.376510308240943236356088341381173571841e-7L, 1.047197551196603215914744618665204532273L);
+  TEST_c_c (cacosh, -0.5L, 0x1p-23L, 1.376510308240943236356088341381173571841e-7L, 2.094395102393190022547898764614298351924L);
+  TEST_c_c (cacosh, 0.5L, -0x1p-23L, 1.376510308240943236356088341381173571841e-7L, -1.047197551196603215914744618665204532273L);
+  TEST_c_c (cacosh, -0.5L, -0x1p-23L, 1.376510308240943236356088341381173571841e-7L, -2.094395102393190022547898764614298351924L);
+  TEST_c_c (cacosh, 0x1.fp-129L, 0.5L, 4.812118250596034474977589134243684231352e-1L, 1.570796326794896619231321691639751442096L);
+  TEST_c_c (cacosh, 0x1.fp-129L, -0.5L, 4.812118250596034474977589134243684231352e-1L, -1.570796326794896619231321691639751442096L);
+  TEST_c_c (cacosh, -0x1.fp-129L, 0.5L, 4.812118250596034474977589134243684231352e-1L, 1.570796326794896619231321691639751442101L);
+  TEST_c_c (cacosh, -0x1.fp-129L, -0.5L, 4.812118250596034474977589134243684231352e-1L, -1.570796326794896619231321691639751442101L);
+  TEST_c_c (cacosh, 0.5L, 0x1.fp-129L, 3.287317402534702257036015056278368274737e-39L, 1.047197551196597746154214461093167628066L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, -0.5L, 0x1.fp-129L, 3.287317402534702257036015056278368274737e-39L, 2.094395102393195492308428922186335256131L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, 0.5L, -0x1.fp-129L, 3.287317402534702257036015056278368274737e-39L, -1.047197551196597746154214461093167628066L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, -0.5L, -0x1.fp-129L, 3.287317402534702257036015056278368274737e-39L, -2.094395102393195492308428922186335256131L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, 0x1p-23L, 0x1p-23L, 1.192092895507818146886315028596704749235e-7L, 1.570796207585607068450636380271254316214L);
+  TEST_c_c (cacosh, 0x1p-23L, -0x1p-23L, 1.192092895507818146886315028596704749235e-7L, -1.570796207585607068450636380271254316214L);
+  TEST_c_c (cacosh, -0x1p-23L, 0x1p-23L, 1.192092895507818146886315028596704749235e-7L, 1.570796446004186170012007003008248567984L);
+  TEST_c_c (cacosh, -0x1p-23L, -0x1p-23L, 1.192092895507818146886315028596704749235e-7L, -1.570796446004186170012007003008248567984L);
+  TEST_c_c (cacosh, 0x1.fp-129L, 0x1p-23L, 1.192092895507809676556842485683592032154e-7L, 1.570796326794896619231321691639751442096L);
+  TEST_c_c (cacosh, 0x1.fp-129L, -0x1p-23L, 1.192092895507809676556842485683592032154e-7L, -1.570796326794896619231321691639751442096L);
+  TEST_c_c (cacosh, -0x1.fp-129L, 0x1p-23L, 1.192092895507809676556842485683592032154e-7L, 1.570796326794896619231321691639751442101L);
+  TEST_c_c (cacosh, -0x1.fp-129L, -0x1p-23L, 1.192092895507809676556842485683592032154e-7L, -1.570796326794896619231321691639751442101L);
+  TEST_c_c (cacosh, 0x1p-23L, 0x1.fp-129L, 2.846900380897747786805634596726756660388e-39L, 1.570796207585607068449789347324000006847L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, -0x1p-23L, 0x1.fp-129L, 2.846900380897747786805634596726756660388e-39L, 1.570796446004186170012854035955502877351L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, 0x1p-23L, -0x1.fp-129L, 2.846900380897747786805634596726756660388e-39L, -1.570796207585607068449789347324000006847L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, -0x1p-23L, -0x1.fp-129L, 2.846900380897747786805634596726756660388e-39L, -1.570796446004186170012854035955502877351L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, 0.0L, 0x1p-23L, 1.192092895507809676556842485683592032154e-7L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.0L, -0x1p-23L, 1.192092895507809676556842485683592032154e-7L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, 0x1p-23L, 1.192092895507809676556842485683592032154e-7L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, -0x1p-23L, 1.192092895507809676556842485683592032154e-7L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1p-23L, 0.0L, 0.0L, 1.570796207585607068449789347324000006847L);
+  TEST_c_c (cacosh, -0x1p-23L, 0.0L, 0.0L, 1.570796446004186170012854035955502877351L);
+  TEST_c_c (cacosh, 0x1p-23L, -0.0L, 0.0L, -1.570796207585607068449789347324000006847L);
+  TEST_c_c (cacosh, -0x1p-23L, -0.0L, 0.0L, -1.570796446004186170012854035955502877351L);
+  TEST_c_c (cacosh, 0x1.fp-129L, 0x1.fp-129L, 2.846900380897727558361783801085126250967e-39L, 1.570796326794896619231321691639751442096L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, 0x1.fp-129L, -0x1.fp-129L, 2.846900380897727558361783801085126250967e-39L, -1.570796326794896619231321691639751442096L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, -0x1.fp-129L, 0x1.fp-129L, 2.846900380897727558361783801085126250967e-39L, 1.570796326794896619231321691639751442101L, UNDERFLOW_EXCEPTION_FLOAT);
+  TEST_c_c (cacosh, -0x1.fp-129L, -0x1.fp-129L, 2.846900380897727558361783801085126250967e-39L, -1.570796326794896619231321691639751442101L, UNDERFLOW_EXCEPTION_FLOAT);
+#ifndef TEST_FLOAT
+  TEST_c_c (cacosh, 0x1p-52L, 0x0.fffffffffffff8p0L, 8.813735870195429467279863907910458761820e-1L, 1.570796326794896462222075823262236786996L);
+  TEST_c_c (cacosh, 0x1p-52L, -0x0.fffffffffffff8p0L, 8.813735870195429467279863907910458761820e-1L, -1.570796326794896462222075823262236786996L);
+  TEST_c_c (cacosh, -0x1p-52L, 0x0.fffffffffffff8p0L, 8.813735870195429467279863907910458761820e-1L, 1.570796326794896776240567560017266097201L);
+  TEST_c_c (cacosh, -0x1p-52L, -0x0.fffffffffffff8p0L, 8.813735870195429467279863907910458761820e-1L, -1.570796326794896776240567560017266097201L);
+  TEST_c_c (cacosh, 0x0.fffffffffffff8p0L, 0x1p-52L, 1.171456840272878582596796205397918831268e-8L, 1.895456983915074112227925127005564372844e-8L);
+  TEST_c_c (cacosh, -0x0.fffffffffffff8p0L, 0x1p-52L, 1.171456840272878582596796205397918831268e-8L, 3.141592634635223399311902261000251614142L);
+  TEST_c_c (cacosh, 0x0.fffffffffffff8p0L, -0x1p-52L, 1.171456840272878582596796205397918831268e-8L, -1.895456983915074112227925127005564372844e-8L);
+  TEST_c_c (cacosh, -0x0.fffffffffffff8p0L, -0x1p-52L, 1.171456840272878582596796205397918831268e-8L, -3.141592634635223399311902261000251614142L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, 0x0.fffffffffffff8p0L, 8.813735870195429467279863907910371604180e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, -0x0.fffffffffffff8p0L, 8.813735870195429467279863907910371604180e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, 0x0.fffffffffffff8p0L, 8.813735870195429467279863907910371604180e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, -0x0.fffffffffffff8p0L, 8.813735870195429467279863907910371604180e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x0.fffffffffffff8p0L, 0x1.fp-1025L, 3.616396521699973256461764099945789620604e-301L, 1.490116119384765638786343542550461592240e-8L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (cacosh, -0x0.fffffffffffff8p0L, 0x1.fp-1025L, 3.616396521699973256461764099945789620604e-301L, 3.141592638688632044614986995416067458693L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (cacosh, 0x0.fffffffffffff8p0L, -0x1.fp-1025L, 3.616396521699973256461764099945789620604e-301L, -1.490116119384765638786343542550461592240e-8L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (cacosh, -0x0.fffffffffffff8p0L, -0x1.fp-1025L, 3.616396521699973256461764099945789620604e-301L, -3.141592638688632044614986995416067458693L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (cacosh, 0.0L, 0x0.fffffffffffff8p0L, 8.813735870195429467279863907910371604180e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.0L, -0x0.fffffffffffff8p0L, 8.813735870195429467279863907910371604180e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, 0x0.fffffffffffff8p0L, 8.813735870195429467279863907910371604180e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, -0x0.fffffffffffff8p0L, 8.813735870195429467279863907910371604180e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x0.fffffffffffff8p0L, 0.0L, 0.0L, 1.490116119384765638786343542550461592240e-8L);
+  TEST_c_c (cacosh, -0x0.fffffffffffff8p0L, 0.0L, 0.0L, 3.141592638688632044614986995416067458693L);
+  TEST_c_c (cacosh, 0x0.fffffffffffff8p0L, -0.0L, 0.0L, -1.490116119384765638786343542550461592240e-8L);
+  TEST_c_c (cacosh, -0x0.fffffffffffff8p0L, -0.0L, 0.0L, -3.141592638688632044614986995416067458693L);
+#endif
+  TEST_c_c (cacosh, 0x1p-52L, 0.5L, 4.812118250596034474977589134243772428682e-1L, 1.570796326794896420628589431857911675917L);
+  TEST_c_c (cacosh, 0x1p-52L, -0.5L, 4.812118250596034474977589134243772428682e-1L, -1.570796326794896420628589431857911675917L);
+  TEST_c_c (cacosh, -0x1p-52L, 0.5L, 4.812118250596034474977589134243772428682e-1L, 1.570796326794896817834053951421591208280L);
+  TEST_c_c (cacosh, -0x1p-52L, -0.5L, 4.812118250596034474977589134243772428682e-1L, -1.570796326794896817834053951421591208280L);
+  TEST_c_c (cacosh, 0.5L, 0x1p-52L, 2.563950248511418570403591756798643804971e-16L, 1.047197551196597746154214461093186605110L);
+  TEST_c_c (cacosh, -0.5L, 0x1p-52L, 2.563950248511418570403591756798643804971e-16L, 2.094395102393195492308428922186316279087L);
+  TEST_c_c (cacosh, 0.5L, -0x1p-52L, 2.563950248511418570403591756798643804971e-16L, -1.047197551196597746154214461093186605110L);
+  TEST_c_c (cacosh, -0.5L, -0x1p-52L, 2.563950248511418570403591756798643804971e-16L, -2.094395102393195492308428922186316279087L);
+#ifndef TEST_FLOAT
+  TEST_c_c (cacosh, 0x1.fp-1025L, 0.5L, 4.812118250596034474977589134243684231352e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, -0.5L, 4.812118250596034474977589134243684231352e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, 0.5L, 4.812118250596034474977589134243684231352e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, -0.5L, 4.812118250596034474977589134243684231352e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.5L, 0x1.fp-1025L, 6.222508863508420569166420770843207333493e-309L, 1.047197551196597746154214461093167628066L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, -0.5L, 0x1.fp-1025L, 6.222508863508420569166420770843207333493e-309L, 2.094395102393195492308428922186335256131L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, 0.5L, -0x1.fp-1025L, 6.222508863508420569166420770843207333493e-309L, -1.047197551196597746154214461093167628066L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, -0.5L, -0x1.fp-1025L, 6.222508863508420569166420770843207333493e-309L, -2.094395102393195492308428922186335256131L, UNDERFLOW_EXCEPTION_DOUBLE);
+#endif
+  TEST_c_c (cacosh, 0x1p-52L, 0x1p-52L, 2.220446049250313080847263336181677117148e-16L, 1.570796326794896397186716766608443357372L);
+  TEST_c_c (cacosh, 0x1p-52L, -0x1p-52L, 2.220446049250313080847263336181677117148e-16L, -1.570796326794896397186716766608443357372L);
+  TEST_c_c (cacosh, -0x1p-52L, 0x1p-52L, 2.220446049250313080847263336181677117148e-16L, 1.570796326794896841275926616671059526825L);
+  TEST_c_c (cacosh, -0x1p-52L, -0x1p-52L, 2.220446049250313080847263336181677117148e-16L, -1.570796326794896841275926616671059526825L);
+#ifndef TEST_FLOAT
+  TEST_c_c (cacosh, 0x1.fp-1025L, 0x1p-52L, 2.220446049250313080847263336181622378926e-16L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, -0x1p-52L, 2.220446049250313080847263336181622378926e-16L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, 0x1p-52L, 2.220446049250313080847263336181622378926e-16L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, -0x1p-52L, 2.220446049250313080847263336181622378926e-16L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1p-52L, 0x1.fp-1025L, 5.388850751072128349671657362289548938458e-309L, 1.570796326794896397186716766608443357372L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, -0x1p-52L, 0x1.fp-1025L, 5.388850751072128349671657362289548938458e-309L, 1.570796326794896841275926616671059526825L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, 0x1p-52L, -0x1.fp-1025L, 5.388850751072128349671657362289548938458e-309L, -1.570796326794896397186716766608443357372L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, -0x1p-52L, -0x1.fp-1025L, 5.388850751072128349671657362289548938458e-309L, -1.570796326794896841275926616671059526825L, UNDERFLOW_EXCEPTION_DOUBLE);
+#endif
+  TEST_c_c (cacosh, 0.0L, 0x1p-52L, 2.220446049250313080847263336181622378926e-16L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.0L, -0x1p-52L, 2.220446049250313080847263336181622378926e-16L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, 0x1p-52L, 2.220446049250313080847263336181622378926e-16L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, -0x1p-52L, 2.220446049250313080847263336181622378926e-16L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1p-52L, 0.0L, 0.0L, 1.570796326794896397186716766608443357372L);
+  TEST_c_c (cacosh, -0x1p-52L, 0.0L, 0.0L, 1.570796326794896841275926616671059526825L);
+  TEST_c_c (cacosh, 0x1p-52L, -0.0L, 0.0L, -1.570796326794896397186716766608443357372L);
+  TEST_c_c (cacosh, -0x1p-52L, -0.0L, 0.0L, -1.570796326794896841275926616671059526825L);
+#ifndef TEST_FLOAT
+  TEST_c_c (cacosh, 0x1.fp-1025L, 0x1.fp-1025L, 5.388850751072128349671657362289416093031e-309L, 1.570796326794896619231321691639751442099L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, 0x1.fp-1025L, -0x1.fp-1025L, 5.388850751072128349671657362289416093031e-309L, -1.570796326794896619231321691639751442099L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, -0x1.fp-1025L, 0x1.fp-1025L, 5.388850751072128349671657362289416093031e-309L, 1.570796326794896619231321691639751442099L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, -0x1.fp-1025L, -0x1.fp-1025L, 5.388850751072128349671657362289416093031e-309L, -1.570796326794896619231321691639751442099L, UNDERFLOW_EXCEPTION_DOUBLE);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MANT_DIG >= 64
+  TEST_c_c (cacosh, 0x1p-63L, 0x0.ffffffffffffffffp0L, 8.813735870195430251942769895627079569937e-1L, 1.570796326794896619154657020805582738025L);
+  TEST_c_c (cacosh, 0x1p-63L, -0x0.ffffffffffffffffp0L, 8.813735870195430251942769895627079569937e-1L, -1.570796326794896619154657020805582738025L);
+  TEST_c_c (cacosh, -0x1p-63L, 0x0.ffffffffffffffffp0L, 8.813735870195430251942769895627079569937e-1L, 1.570796326794896619307986362473920146173L);
+  TEST_c_c (cacosh, -0x1p-63L, -0x0.ffffffffffffffffp0L, 8.813735870195430251942769895627079569937e-1L, -1.570796326794896619307986362473920146173L);
+  TEST_c_c (cacosh, 0x0.ffffffffffffffffp0L, 0x1p-63L, 2.588578361325995866221775673638805081337e-10L, 4.188407771167967636741951941902992986043e-10L);
+  TEST_c_c (cacosh, -0x0.ffffffffffffffffp0L, 0x1p-63L, 2.588578361325995866221775673638805081337e-10L, 3.141592653170952461345846619605307690007L);
+  TEST_c_c (cacosh, 0x0.ffffffffffffffffp0L, -0x1p-63L, 2.588578361325995866221775673638805081337e-10L, -4.188407771167967636741951941902992986043e-10L);
+  TEST_c_c (cacosh, -0x0.ffffffffffffffffp0L, -0x1p-63L, 2.588578361325995866221775673638805081337e-10L, -3.141592653170952461345846619605307690007L);
+# if LDBL_MIN_EXP <= -16381
+  TEST_c_c (cacosh, 0x1.fp-16385L, 0x0.ffffffffffffffffp0L, 8.813735870195430251942769895627079569917e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-16385L, -0x0.ffffffffffffffffp0L, 8.813735870195430251942769895627079569917e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, 0x0.ffffffffffffffffp0L, 8.813735870195430251942769895627079569917e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, -0x0.ffffffffffffffffp0L, 8.813735870195430251942769895627079569917e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x0.ffffffffffffffffp0L, 0x1.fp-16385L, 2.472906068161537187835415298076415423459e-4923L, 3.292722539913596233371825532007990724506e-10L);
+  TEST_c_c (cacosh, -0x0.ffffffffffffffffp0L, 0x1.fp-16385L, 2.472906068161537187835415298076415423459e-4923L, 3.141592653260520984471283759942320330996L);
+  TEST_c_c (cacosh, 0x0.ffffffffffffffffp0L, -0x1.fp-16385L, 2.472906068161537187835415298076415423459e-4923L, -3.292722539913596233371825532007990724506e-10L);
+  TEST_c_c (cacosh, -0x0.ffffffffffffffffp0L, -0x1.fp-16385L, 2.472906068161537187835415298076415423459e-4923L, -3.141592653260520984471283759942320330996L);
+# endif
+  TEST_c_c (cacosh, 0.0L, 0x0.ffffffffffffffffp0L, 8.813735870195430251942769895627079569917e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.0L, -0x0.ffffffffffffffffp0L, 8.813735870195430251942769895627079569917e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, 0x0.ffffffffffffffffp0L, 8.813735870195430251942769895627079569917e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, -0x0.ffffffffffffffffp0L, 8.813735870195430251942769895627079569917e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x0.ffffffffffffffffp0L, 0.0L, 0.0L, 3.292722539913596233371825532007990724506e-10L);
+  TEST_c_c (cacosh, -0x0.ffffffffffffffffp0L, 0.0L, 0.0L, 3.141592653260520984471283759942320330996L);
+  TEST_c_c (cacosh, 0x0.ffffffffffffffffp0L, -0.0L, 0.0L, -3.292722539913596233371825532007990724506e-10L);
+  TEST_c_c (cacosh, -0x0.ffffffffffffffffp0L, -0.0L, 0.0L, -3.141592653260520984471283759942320330996L);
+#endif
+  TEST_c_c (cacosh, 0x1p-63L, 0.5L, 4.812118250596034474977589134243684231373e-1L, 1.570796326794896619134347701278529840650L);
+  TEST_c_c (cacosh, 0x1p-63L, -0.5L, 4.812118250596034474977589134243684231373e-1L, -1.570796326794896619134347701278529840650L);
+  TEST_c_c (cacosh, -0x1p-63L, 0.5L, 4.812118250596034474977589134243684231373e-1L, 1.570796326794896619328295682000973043547L);
+  TEST_c_c (cacosh, -0x1p-63L, -0.5L, 4.812118250596034474977589134243684231373e-1L, -1.570796326794896619328295682000973043547L);
+  TEST_c_c (cacosh, 0.5L, 0x1p-63L, 1.251928832280966098829878787499365228659e-19L, 1.047197551196597746154214461093167628070L);
+  TEST_c_c (cacosh, -0.5L, 0x1p-63L, 1.251928832280966098829878787499365228659e-19L, 2.094395102393195492308428922186335256127L);
+  TEST_c_c (cacosh, 0.5L, -0x1p-63L, 1.251928832280966098829878787499365228659e-19L, -1.047197551196597746154214461093167628070L);
+  TEST_c_c (cacosh, -0.5L, -0x1p-63L, 1.251928832280966098829878787499365228659e-19L, -2.094395102393195492308428922186335256127L);
+#if defined TEST_LDOUBLE && LDBL_MIN_EXP <= -16381
+  TEST_c_c (cacosh, 0x1.fp-16385L, 0.5L, 4.812118250596034474977589134243684231352e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-16385L, -0.5L, 4.812118250596034474977589134243684231352e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, 0.5L, 4.812118250596034474977589134243684231352e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, -0.5L, 4.812118250596034474977589134243684231352e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.5L, 0x1.fp-16385L, 9.402257155670418112159334875199821342890e-4933L, 1.047197551196597746154214461093167628066L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (cacosh, -0.5L, 0x1.fp-16385L, 9.402257155670418112159334875199821342890e-4933L, 2.094395102393195492308428922186335256131L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (cacosh, 0.5L, -0x1.fp-16385L, 9.402257155670418112159334875199821342890e-4933L, -1.047197551196597746154214461093167628066L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (cacosh, -0.5L, -0x1.fp-16385L, 9.402257155670418112159334875199821342890e-4933L, -2.094395102393195492308428922186335256131L, UNDERFLOW_EXCEPTION);
+#endif
+  TEST_c_c (cacosh, 0x1p-63L, 0x1p-63L, 1.084202172485504434007452800869941711430e-19L, 1.570796326794896619122901474391200998698L);
+  TEST_c_c (cacosh, 0x1p-63L, -0x1p-63L, 1.084202172485504434007452800869941711430e-19L, -1.570796326794896619122901474391200998698L);
+  TEST_c_c (cacosh, -0x1p-63L, 0x1p-63L, 1.084202172485504434007452800869941711430e-19L, 1.570796326794896619339741908888301885499L);
+  TEST_c_c (cacosh, -0x1p-63L, -0x1p-63L, 1.084202172485504434007452800869941711430e-19L, -1.570796326794896619339741908888301885499L);
+#if defined TEST_LDOUBLE && LDBL_MIN_EXP <= -16381
+  TEST_c_c (cacosh, 0x1.fp-16385L, 0x1p-63L, 1.084202172485504434007452800869941711424e-19L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-16385L, -0x1p-63L, 1.084202172485504434007452800869941711424e-19L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, 0x1p-63L, 1.084202172485504434007452800869941711424e-19L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-16385L, -0x1p-63L, 1.084202172485504434007452800869941711424e-19L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1p-63L, 0x1.fp-16385L, 8.142593549724601460479922838826119584465e-4933L, 1.570796326794896619122901474391200998698L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (cacosh, -0x1p-63L, 0x1.fp-16385L, 8.142593549724601460479922838826119584465e-4933L, 1.570796326794896619339741908888301885499L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (cacosh, 0x1p-63L, -0x1.fp-16385L, 8.142593549724601460479922838826119584465e-4933L, -1.570796326794896619122901474391200998698L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (cacosh, -0x1p-63L, -0x1.fp-16385L, 8.142593549724601460479922838826119584465e-4933L, -1.570796326794896619339741908888301885499L, UNDERFLOW_EXCEPTION);
+#endif
+  TEST_c_c (cacosh, 0.0L, 0x1p-63L, 1.084202172485504434007452800869941711424e-19L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.0L, -0x1p-63L, 1.084202172485504434007452800869941711424e-19L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, 0x1p-63L, 1.084202172485504434007452800869941711424e-19L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, -0x1p-63L, 1.084202172485504434007452800869941711424e-19L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1p-63L, 0.0L, 0.0L, 1.570796326794896619122901474391200998698L);
+  TEST_c_c (cacosh, -0x1p-63L, 0.0L, 0.0L, 1.570796326794896619339741908888301885499L);
+  TEST_c_c (cacosh, 0x1p-63L, -0.0L, 0.0L, -1.570796326794896619122901474391200998698L);
+  TEST_c_c (cacosh, -0x1p-63L, -0.0L, 0.0L, -1.570796326794896619339741908888301885499L);
+#if defined TEST_LDOUBLE && LDBL_MIN_EXP <= -16381
+  TEST_c_c (cacosh, 0x1.fp-16385L, 0x1.fp-16385L, 8.142593549724601460479922838826119584417e-4933L, 1.570796326794896619231321691639751442099L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (cacosh, 0x1.fp-16385L, -0x1.fp-16385L, 8.142593549724601460479922838826119584417e-4933L, -1.570796326794896619231321691639751442099L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (cacosh, -0x1.fp-16385L, 0x1.fp-16385L, 8.142593549724601460479922838826119584417e-4933L, 1.570796326794896619231321691639751442099L, UNDERFLOW_EXCEPTION);
+  TEST_c_c (cacosh, -0x1.fp-16385L, -0x1.fp-16385L, 8.142593549724601460479922838826119584417e-4933L, -1.570796326794896619231321691639751442099L, UNDERFLOW_EXCEPTION);
+#endif
+#if defined TEST_LDOUBLE && LDBL_MANT_DIG >= 106
+  TEST_c_c (cacosh, 0x1p-105L, 0x0.ffffffffffffffffffffffffffcp0L, 8.813735870195430252326093249797835932642e-1L, 1.570796326794896619231321691639734010571L);
+  TEST_c_c (cacosh, 0x1p-105L, -0x0.ffffffffffffffffffffffffffcp0L, 8.813735870195430252326093249797835932642e-1L, -1.570796326794896619231321691639734010571L);
+  TEST_c_c (cacosh, -0x1p-105L, 0x0.ffffffffffffffffffffffffffcp0L, 8.813735870195430252326093249797835932642e-1L, 1.570796326794896619231321691639768873627L);
+  TEST_c_c (cacosh, -0x1p-105L, -0x0.ffffffffffffffffffffffffffcp0L, 8.813735870195430252326093249797835932642e-1L, -1.570796326794896619231321691639768873627L);
+  TEST_c_c (cacosh, 0x0.ffffffffffffffffffffffffffcp0L, 0x1p-105L, 1.234330349600789959989661887846005659983e-16L, 1.997188458999618357060632049675702684031e-16L);
+  TEST_c_c (cacosh, -0x0.ffffffffffffffffffffffffffcp0L, 0x1p-105L, 1.234330349600789959989661887846005659983e-16L, 3.141592653589793038743797483317667178134L);
+  TEST_c_c (cacosh, 0x0.ffffffffffffffffffffffffffcp0L, -0x1p-105L, 1.234330349600789959989661887846005659983e-16L, -1.997188458999618357060632049675702684031e-16L);
+  TEST_c_c (cacosh, -0x0.ffffffffffffffffffffffffffcp0L, -0x1p-105L, 1.234330349600789959989661887846005659983e-16L, -3.141592653589793038743797483317667178134L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, 0x0.ffffffffffffffffffffffffffcp0L, 8.813735870195430252326093249797835932642e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, -0x0.ffffffffffffffffffffffffffcp0L, 8.813735870195430252326093249797835932642e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, 0x0.ffffffffffffffffffffffffffcp0L, 8.813735870195430252326093249797835932642e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, -0x0.ffffffffffffffffffffffffffcp0L, 8.813735870195430252326093249797835932642e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x0.ffffffffffffffffffffffffffcp0L, 0x1.fp-1025L, 3.432186888910770473784103112009399360940e-293L, 1.570092458683775059393382371963565104164e-16L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (cacosh, -0x0.ffffffffffffffffffffffffffcp0L, 0x1.fp-1025L, 3.432186888910770473784103112009399360940e-293L, 3.141592653589793081453397514901996944859L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (cacosh, 0x0.ffffffffffffffffffffffffffcp0L, -0x1.fp-1025L, 3.432186888910770473784103112009399360940e-293L, -1.570092458683775059393382371963565104164e-16L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (cacosh, -0x0.ffffffffffffffffffffffffffcp0L, -0x1.fp-1025L, 3.432186888910770473784103112009399360940e-293L, -3.141592653589793081453397514901996944859L, UNDERFLOW_EXCEPTION_LDOUBLE_IBM);
+  TEST_c_c (cacosh, 0.0L, 0x0.ffffffffffffffffffffffffffcp0L, 8.813735870195430252326093249797835932642e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0.0L, -0x0.ffffffffffffffffffffffffffcp0L, 8.813735870195430252326093249797835932642e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, 0x0.ffffffffffffffffffffffffffcp0L, 8.813735870195430252326093249797835932642e-1L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0.0L, -0x0.ffffffffffffffffffffffffffcp0L, 8.813735870195430252326093249797835932642e-1L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x0.ffffffffffffffffffffffffffcp0L, 0.0L, 0.0L, 1.570092458683775059393382371963565104164e-16L);
+  TEST_c_c (cacosh, -0x0.ffffffffffffffffffffffffffcp0L, 0.0L, 0.0L, 3.141592653589793081453397514901996944859L);
+  TEST_c_c (cacosh, 0x0.ffffffffffffffffffffffffffcp0L, -0.0L, 0.0L, -1.570092458683775059393382371963565104164e-16L);
+  TEST_c_c (cacosh, -0x0.ffffffffffffffffffffffffffcp0L, -0.0L, 0.0L, -3.141592653589793081453397514901996944859L);
+#endif
+  TEST_c_c (cacosh, 0x1p-105L, 0.5L, 4.812118250596034474977589134243684231352e-1L, 1.570796326794896619231321691639729392766L);
+  TEST_c_c (cacosh, 0x1p-105L, -0.5L, 4.812118250596034474977589134243684231352e-1L, -1.570796326794896619231321691639729392766L);
+  TEST_c_c (cacosh, -0x1p-105L, 0.5L, 4.812118250596034474977589134243684231352e-1L, 1.570796326794896619231321691639773491431L);
+  TEST_c_c (cacosh, -0x1p-105L, -0.5L, 4.812118250596034474977589134243684231352e-1L, -1.570796326794896619231321691639773491431L);
+  TEST_c_c (cacosh, 0.5L, 0x1p-105L, 2.846556599890768890940941645338546615370e-32L, 1.047197551196597746154214461093167628066L);
+  TEST_c_c (cacosh, -0.5L, 0x1p-105L, 2.846556599890768890940941645338546615370e-32L, 2.094395102393195492308428922186335256131L);
+  TEST_c_c (cacosh, 0.5L, -0x1p-105L, 2.846556599890768890940941645338546615370e-32L, -1.047197551196597746154214461093167628066L);
+  TEST_c_c (cacosh, -0.5L, -0x1p-105L, 2.846556599890768890940941645338546615370e-32L, -2.094395102393195492308428922186335256131L);
+  TEST_c_c (cacosh, 0x1p-105L, 0x1p-105L, 2.465190328815661891911651766508706967729e-32L, 1.570796326794896619231321691639726790195L);
+  TEST_c_c (cacosh, 0x1p-105L, -0x1p-105L, 2.465190328815661891911651766508706967729e-32L, -1.570796326794896619231321691639726790195L);
+  TEST_c_c (cacosh, -0x1p-105L, 0x1p-105L, 2.465190328815661891911651766508706967729e-32L, 1.570796326794896619231321691639776094002L);
+  TEST_c_c (cacosh, -0x1p-105L, -0x1p-105L, 2.465190328815661891911651766508706967729e-32L, -1.570796326794896619231321691639776094002L);
+#ifndef TEST_FLOAT
+  TEST_c_c (cacosh, 0x1.fp-1025L, 0x1p-105L, 2.465190328815661891911651766508706967729e-32L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1.fp-1025L, -0x1p-105L, 2.465190328815661891911651766508706967729e-32L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, 0x1p-105L, 2.465190328815661891911651766508706967729e-32L, 1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, -0x1.fp-1025L, -0x1p-105L, 2.465190328815661891911651766508706967729e-32L, -1.570796326794896619231321691639751442099L);
+  TEST_c_c (cacosh, 0x1p-105L, 0x1.fp-1025L, 5.388850751072128349671657362289416093031e-309L, 1.570796326794896619231321691639726790195L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, -0x1p-105L, 0x1.fp-1025L, 5.388850751072128349671657362289416093031e-309L, 1.570796326794896619231321691639776094002L, UNDERFLOW_EXCEPTION_DOUBLE);
+  TEST_c_c (cacosh, 0x1p-105L, -0x1.fp-1025L, 5.388850751072128349671657362289416093031e-309L, -1.570796326794896619231321691639726790195L, UNDERFLOW_EXCEPTION_DOUBLE);

[... 3120 lines stripped ...]
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