diff options
| -rw-r--r-- | ChangeLog | 22 | ||||
| -rw-r--r-- | NEWS | 4 | ||||
| -rw-r--r-- | math/auto-libm-test-in | 4 | ||||
| -rw-r--r-- | math/auto-libm-test-out | 316 | ||||
| -rw-r--r-- | sysdeps/i386/fpu/libm-test-ulps | 4 | ||||
| -rw-r--r-- | sysdeps/ieee754/dbl-64/s_tanh.c | 10 | ||||
| -rw-r--r-- | sysdeps/ieee754/flt-32/s_tanhf.c | 8 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_tanhl.c | 10 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/s_tanhl.c | 8 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-96/s_tanhl.c | 8 |
10 files changed, 390 insertions, 4 deletions
@@ -1,3 +1,25 @@ +2015-08-13 Joseph Myers <joseph@codesourcery.com> + + [BZ #16520] + * sysdeps/ieee754/dbl-64/s_tanh.c: Include <float.h>. + (__tanh): Force underflow exception for arguments with small + absolute value. + * sysdeps/ieee754/flt-32/s_tanhf.c: Include <float.h>. + (__tanhf): Force underflow exception for arguments with small + absolute value. + * sysdeps/ieee754/ldbl-128/s_tanhl.c: Include <float.h>. + (__tanhl): Force underflow exception for arguments with small + absolute value. + * sysdeps/ieee754/ldbl-128ibm/s_tanhl.c: Include <float.h>. + (__tanhl): Force underflow exception for arguments with small + absolute value. + * sysdeps/ieee754/ldbl-96/s_tanhl.c: Include <float.h>. + (__tanhl): Force underflow exception for arguments with small + absolute value. + * math/auto-libm-test-in: Add more tests of tanh. + * math/auto-libm-test-out: Regenerated. + * sysdeps/i386/fpu/libm-test-ulps: Update. + 2015-08-13 H.J. Lu <hongjiu.lu@intel.com> * sysdeps/x86/cpu-features.c (init_cpu_features): Call @@ -9,8 +9,8 @@ Version 2.23 * The following bugs are resolved with this release: - 16517, 16519, 16734, 17905, 18086, 18265, 18480, 18525, 18618, 18647, - 18661, 18674, 18778, 18781, 18787, 18789, 18790, 18820. + 16517, 16519, 16520, 16734, 17905, 18086, 18265, 18480, 18525, 18618, + 18647, 18661, 18674, 18778, 18781, 18787, 18789, 18790, 18820. Version 2.22 diff --git a/math/auto-libm-test-in b/math/auto-libm-test-in index c32e436..b14146e 100644 --- a/math/auto-libm-test-in +++ b/math/auto-libm-test-in @@ -2779,6 +2779,10 @@ tanh -0x2.6082fp-4 tanh 0xe.05031p-16 tanh 0x3.c80eaa7adaa3p-4 tanh 0x2.00f9857616524p-4 +tanh min +tanh -min +tanh min_subnorm +tanh -min_subnorm tgamma 0.5 tgamma -0.5 diff --git a/math/auto-libm-test-out b/math/auto-libm-test-out index b4114be..4d8bcf2 100644 --- a/math/auto-libm-test-out +++ b/math/auto-libm-test-out @@ -205177,6 +205177,322 @@ tanh 0x2.00f9857616524p-4 = tanh tonearest ldbl-128ibm 0x2.00f9857616524p-4L : 0x1.fe4f3a8e0515344ff794387d93p-4L : inexact-ok = tanh towardzero ldbl-128ibm 0x2.00f9857616524p-4L : 0x1.fe4f3a8e0515344ff794387d928p-4L : inexact-ok = tanh upward ldbl-128ibm 0x2.00f9857616524p-4L : 0x1.fe4f3a8e0515344ff794387d93p-4L : inexact-ok +tanh min += tanh downward flt-32 0x4p-128f : 0x3.fffff8p-128f : inexact-ok underflow-ok errno-erange-ok += tanh tonearest flt-32 0x4p-128f : 0x4p-128f : inexact-ok underflow-ok errno-erange-ok += tanh towardzero flt-32 0x4p-128f : 0x3.fffff8p-128f : inexact-ok underflow-ok errno-erange-ok += tanh upward flt-32 0x4p-128f : 0x4p-128f : inexact-ok underflow-ok errno-erange-ok += tanh downward dbl-64 0x4p-128 : 0x3.ffffffffffffep-128 : inexact-ok += tanh tonearest dbl-64 0x4p-128 : 0x4p-128 : inexact-ok += tanh towardzero dbl-64 0x4p-128 : 0x3.ffffffffffffep-128 : inexact-ok += tanh upward dbl-64 0x4p-128 : 0x4p-128 : inexact-ok += tanh downward ldbl-96-intel 0x4p-128L : 0x3.fffffffffffffffcp-128L : inexact-ok += tanh tonearest ldbl-96-intel 0x4p-128L : 0x4p-128L : inexact-ok += tanh towardzero ldbl-96-intel 0x4p-128L : 0x3.fffffffffffffffcp-128L : inexact-ok += tanh upward ldbl-96-intel 0x4p-128L : 0x4p-128L : inexact-ok += tanh downward ldbl-96-m68k 0x4p-128L : 0x3.fffffffffffffffcp-128L : inexact-ok += tanh tonearest ldbl-96-m68k 0x4p-128L : 0x4p-128L : inexact-ok += tanh towardzero ldbl-96-m68k 0x4p-128L : 0x3.fffffffffffffffcp-128L : inexact-ok += tanh upward ldbl-96-m68k 0x4p-128L : 0x4p-128L : inexact-ok += tanh downward ldbl-128 0x4p-128L : 0x3.fffffffffffffffffffffffffffep-128L : inexact-ok += tanh tonearest ldbl-128 0x4p-128L : 0x4p-128L : inexact-ok += tanh towardzero ldbl-128 0x4p-128L : 0x3.fffffffffffffffffffffffffffep-128L : inexact-ok += tanh upward ldbl-128 0x4p-128L : 0x4p-128L : inexact-ok += tanh downward ldbl-128ibm 0x4p-128L : 0x3.ffffffffffffffffffffffffffp-128L : inexact-ok += tanh tonearest ldbl-128ibm 0x4p-128L : 0x4p-128L : inexact-ok += tanh towardzero ldbl-128ibm 0x4p-128L : 0x3.ffffffffffffffffffffffffffp-128L : inexact-ok += tanh upward ldbl-128ibm 0x4p-128L : 0x4p-128L : inexact-ok += tanh downward dbl-64 0x4p-1024 : 0x3.ffffffffffffcp-1024 : inexact-ok underflow-ok errno-erange-ok += tanh tonearest dbl-64 0x4p-1024 : 0x4p-1024 : inexact-ok underflow-ok errno-erange-ok += tanh towardzero dbl-64 0x4p-1024 : 0x3.ffffffffffffcp-1024 : inexact-ok underflow-ok errno-erange-ok += tanh upward dbl-64 0x4p-1024 : 0x4p-1024 : inexact-ok underflow-ok errno-erange-ok += tanh downward ldbl-96-intel 0x4p-1024L : 0x3.fffffffffffffffcp-1024L : inexact-ok += tanh tonearest ldbl-96-intel 0x4p-1024L : 0x4p-1024L : inexact-ok += tanh towardzero ldbl-96-intel 0x4p-1024L : 0x3.fffffffffffffffcp-1024L : inexact-ok += tanh upward ldbl-96-intel 0x4p-1024L : 0x4p-1024L : inexact-ok += tanh downward ldbl-96-m68k 0x4p-1024L : 0x3.fffffffffffffffcp-1024L : inexact-ok += tanh tonearest ldbl-96-m68k 0x4p-1024L : 0x4p-1024L : inexact-ok += tanh towardzero ldbl-96-m68k 0x4p-1024L : 0x3.fffffffffffffffcp-1024L : inexact-ok += tanh upward ldbl-96-m68k 0x4p-1024L : 0x4p-1024L : inexact-ok += tanh downward ldbl-128 0x4p-1024L : 0x3.fffffffffffffffffffffffffffep-1024L : inexact-ok += tanh tonearest ldbl-128 0x4p-1024L : 0x4p-1024L : inexact-ok += tanh towardzero ldbl-128 0x4p-1024L : 0x3.fffffffffffffffffffffffffffep-1024L : inexact-ok += tanh upward ldbl-128 0x4p-1024L : 0x4p-1024L : inexact-ok += tanh downward ldbl-128ibm 0x4p-1024L : 0x3.ffffffffffffcp-1024L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-128ibm 0x4p-1024L : 0x4p-1024L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-128ibm 0x4p-1024L : 0x3.ffffffffffffcp-1024L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-128ibm 0x4p-1024L : 0x4p-1024L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-96-intel 0x4p-16384L : 0x3.fffffffffffffff8p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh tonearest ldbl-96-intel 0x4p-16384L : 0x4p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh towardzero ldbl-96-intel 0x4p-16384L : 0x3.fffffffffffffff8p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh upward ldbl-96-intel 0x4p-16384L : 0x4p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh downward ldbl-96-m68k 0x4p-16384L : 0x3.fffffffffffffffcp-16384L : inexact-ok += tanh tonearest ldbl-96-m68k 0x4p-16384L : 0x4p-16384L : inexact-ok += tanh towardzero ldbl-96-m68k 0x4p-16384L : 0x3.fffffffffffffffcp-16384L : inexact-ok += tanh upward ldbl-96-m68k 0x4p-16384L : 0x4p-16384L : inexact-ok += tanh downward ldbl-128 0x4p-16384L : 0x3.fffffffffffffffffffffffffffcp-16384L : inexact-ok underflow-ok errno-erange-ok += tanh tonearest ldbl-128 0x4p-16384L : 0x4p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh towardzero ldbl-128 0x4p-16384L : 0x3.fffffffffffffffffffffffffffcp-16384L : inexact-ok underflow-ok errno-erange-ok += tanh upward ldbl-128 0x4p-16384L : 0x4p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh downward ldbl-96-intel 0x2p-16384L : 0x1.fffffffffffffff8p-16384L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-96-intel 0x2p-16384L : 0x2p-16384L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-96-intel 0x2p-16384L : 0x1.fffffffffffffff8p-16384L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-96-intel 0x2p-16384L : 0x2p-16384L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-96-m68k 0x2p-16384L : 0x1.fffffffffffffffcp-16384L : inexact-ok underflow-ok errno-erange-ok += tanh tonearest ldbl-96-m68k 0x2p-16384L : 0x2p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh towardzero ldbl-96-m68k 0x2p-16384L : 0x1.fffffffffffffffcp-16384L : inexact-ok underflow-ok errno-erange-ok += tanh upward ldbl-96-m68k 0x2p-16384L : 0x2p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh downward ldbl-128 0x2p-16384L : 0x1.fffffffffffffffffffffffffffcp-16384L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-128 0x2p-16384L : 0x2p-16384L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-128 0x2p-16384L : 0x1.fffffffffffffffffffffffffffcp-16384L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-128 0x2p-16384L : 0x2p-16384L : inexact-ok underflow errno-erange-ok += tanh downward dbl-64 0x8p-972 : 0x7.ffffffffffffcp-972 : inexact-ok += tanh tonearest dbl-64 0x8p-972 : 0x8p-972 : inexact-ok += tanh towardzero dbl-64 0x8p-972 : 0x7.ffffffffffffcp-972 : inexact-ok += tanh upward dbl-64 0x8p-972 : 0x8p-972 : inexact-ok += tanh downward ldbl-96-intel 0x8p-972L : 0x7.fffffffffffffff8p-972L : inexact-ok += tanh tonearest ldbl-96-intel 0x8p-972L : 0x8p-972L : inexact-ok += tanh towardzero ldbl-96-intel 0x8p-972L : 0x7.fffffffffffffff8p-972L : inexact-ok += tanh upward ldbl-96-intel 0x8p-972L : 0x8p-972L : inexact-ok += tanh downward ldbl-96-m68k 0x8p-972L : 0x7.fffffffffffffff8p-972L : inexact-ok += tanh tonearest ldbl-96-m68k 0x8p-972L : 0x8p-972L : inexact-ok += tanh towardzero ldbl-96-m68k 0x8p-972L : 0x7.fffffffffffffff8p-972L : inexact-ok += tanh upward ldbl-96-m68k 0x8p-972L : 0x8p-972L : inexact-ok += tanh downward ldbl-128 0x8p-972L : 0x7.fffffffffffffffffffffffffffcp-972L : inexact-ok += tanh tonearest ldbl-128 0x8p-972L : 0x8p-972L : inexact-ok += tanh towardzero ldbl-128 0x8p-972L : 0x7.fffffffffffffffffffffffffffcp-972L : inexact-ok += tanh upward ldbl-128 0x8p-972L : 0x8p-972L : inexact-ok += tanh downward ldbl-128ibm 0x8p-972L : 0x7.fffffffffffffffffffffffffcp-972L : inexact-ok underflow-ok errno-erange-ok += tanh tonearest ldbl-128ibm 0x8p-972L : 0x8p-972L : inexact-ok underflow-ok errno-erange-ok += tanh towardzero ldbl-128ibm 0x8p-972L : 0x7.fffffffffffffffffffffffffcp-972L : inexact-ok underflow-ok errno-erange-ok += tanh upward ldbl-128ibm 0x8p-972L : 0x8p-972L : inexact-ok underflow-ok errno-erange-ok +tanh -min += tanh downward flt-32 -0x4p-128f : -0x4p-128f : inexact-ok underflow-ok errno-erange-ok += tanh tonearest flt-32 -0x4p-128f : -0x4p-128f : inexact-ok underflow-ok errno-erange-ok += tanh towardzero flt-32 -0x4p-128f : -0x3.fffff8p-128f : inexact-ok underflow-ok errno-erange-ok += tanh upward flt-32 -0x4p-128f : -0x3.fffff8p-128f : inexact-ok underflow-ok errno-erange-ok += tanh downward dbl-64 -0x4p-128 : -0x4p-128 : inexact-ok += tanh tonearest dbl-64 -0x4p-128 : -0x4p-128 : inexact-ok += tanh towardzero dbl-64 -0x4p-128 : -0x3.ffffffffffffep-128 : inexact-ok += tanh upward dbl-64 -0x4p-128 : -0x3.ffffffffffffep-128 : inexact-ok += tanh downward ldbl-96-intel -0x4p-128L : -0x4p-128L : inexact-ok += tanh tonearest ldbl-96-intel -0x4p-128L : -0x4p-128L : inexact-ok += tanh towardzero ldbl-96-intel -0x4p-128L : -0x3.fffffffffffffffcp-128L : inexact-ok += tanh upward ldbl-96-intel -0x4p-128L : -0x3.fffffffffffffffcp-128L : inexact-ok += tanh downward ldbl-96-m68k -0x4p-128L : -0x4p-128L : inexact-ok += tanh tonearest ldbl-96-m68k -0x4p-128L : -0x4p-128L : inexact-ok += tanh towardzero ldbl-96-m68k -0x4p-128L : -0x3.fffffffffffffffcp-128L : inexact-ok += tanh upward ldbl-96-m68k -0x4p-128L : -0x3.fffffffffffffffcp-128L : inexact-ok += tanh downward ldbl-128 -0x4p-128L : -0x4p-128L : inexact-ok += tanh tonearest ldbl-128 -0x4p-128L : -0x4p-128L : inexact-ok += tanh towardzero ldbl-128 -0x4p-128L : -0x3.fffffffffffffffffffffffffffep-128L : inexact-ok += tanh upward ldbl-128 -0x4p-128L : -0x3.fffffffffffffffffffffffffffep-128L : inexact-ok += tanh downward ldbl-128ibm -0x4p-128L : -0x4p-128L : inexact-ok += tanh tonearest ldbl-128ibm -0x4p-128L : -0x4p-128L : inexact-ok += tanh towardzero ldbl-128ibm -0x4p-128L : -0x3.ffffffffffffffffffffffffffp-128L : inexact-ok += tanh upward ldbl-128ibm -0x4p-128L : -0x3.ffffffffffffffffffffffffffp-128L : inexact-ok += tanh downward dbl-64 -0x4p-1024 : -0x4p-1024 : inexact-ok underflow-ok errno-erange-ok += tanh tonearest dbl-64 -0x4p-1024 : -0x4p-1024 : inexact-ok underflow-ok errno-erange-ok += tanh towardzero dbl-64 -0x4p-1024 : -0x3.ffffffffffffcp-1024 : inexact-ok underflow-ok errno-erange-ok += tanh upward dbl-64 -0x4p-1024 : -0x3.ffffffffffffcp-1024 : inexact-ok underflow-ok errno-erange-ok += tanh downward ldbl-96-intel -0x4p-1024L : -0x4p-1024L : inexact-ok += tanh tonearest ldbl-96-intel -0x4p-1024L : -0x4p-1024L : inexact-ok += tanh towardzero ldbl-96-intel -0x4p-1024L : -0x3.fffffffffffffffcp-1024L : inexact-ok += tanh upward ldbl-96-intel -0x4p-1024L : -0x3.fffffffffffffffcp-1024L : inexact-ok += tanh downward ldbl-96-m68k -0x4p-1024L : -0x4p-1024L : inexact-ok += tanh tonearest ldbl-96-m68k -0x4p-1024L : -0x4p-1024L : inexact-ok += tanh towardzero ldbl-96-m68k -0x4p-1024L : -0x3.fffffffffffffffcp-1024L : inexact-ok += tanh upward ldbl-96-m68k -0x4p-1024L : -0x3.fffffffffffffffcp-1024L : inexact-ok += tanh downward ldbl-128 -0x4p-1024L : -0x4p-1024L : inexact-ok += tanh tonearest ldbl-128 -0x4p-1024L : -0x4p-1024L : inexact-ok += tanh towardzero ldbl-128 -0x4p-1024L : -0x3.fffffffffffffffffffffffffffep-1024L : inexact-ok += tanh upward ldbl-128 -0x4p-1024L : -0x3.fffffffffffffffffffffffffffep-1024L : inexact-ok += tanh downward ldbl-128ibm -0x4p-1024L : -0x4p-1024L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-128ibm -0x4p-1024L : -0x4p-1024L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-128ibm -0x4p-1024L : -0x3.ffffffffffffcp-1024L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-128ibm -0x4p-1024L : -0x3.ffffffffffffcp-1024L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-96-intel -0x4p-16384L : -0x4p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh tonearest ldbl-96-intel -0x4p-16384L : -0x4p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh towardzero ldbl-96-intel -0x4p-16384L : -0x3.fffffffffffffff8p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh upward ldbl-96-intel -0x4p-16384L : -0x3.fffffffffffffff8p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh downward ldbl-96-m68k -0x4p-16384L : -0x4p-16384L : inexact-ok += tanh tonearest ldbl-96-m68k -0x4p-16384L : -0x4p-16384L : inexact-ok += tanh towardzero ldbl-96-m68k -0x4p-16384L : -0x3.fffffffffffffffcp-16384L : inexact-ok += tanh upward ldbl-96-m68k -0x4p-16384L : -0x3.fffffffffffffffcp-16384L : inexact-ok += tanh downward ldbl-128 -0x4p-16384L : -0x4p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh tonearest ldbl-128 -0x4p-16384L : -0x4p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh towardzero ldbl-128 -0x4p-16384L : -0x3.fffffffffffffffffffffffffffcp-16384L : inexact-ok underflow-ok errno-erange-ok += tanh upward ldbl-128 -0x4p-16384L : -0x3.fffffffffffffffffffffffffffcp-16384L : inexact-ok underflow-ok errno-erange-ok += tanh downward ldbl-96-intel -0x2p-16384L : -0x2p-16384L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-96-intel -0x2p-16384L : -0x2p-16384L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-96-intel -0x2p-16384L : -0x1.fffffffffffffff8p-16384L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-96-intel -0x2p-16384L : -0x1.fffffffffffffff8p-16384L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-96-m68k -0x2p-16384L : -0x2p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh tonearest ldbl-96-m68k -0x2p-16384L : -0x2p-16384L : inexact-ok underflow-ok errno-erange-ok += tanh towardzero ldbl-96-m68k -0x2p-16384L : -0x1.fffffffffffffffcp-16384L : inexact-ok underflow-ok errno-erange-ok += tanh upward ldbl-96-m68k -0x2p-16384L : -0x1.fffffffffffffffcp-16384L : inexact-ok underflow-ok errno-erange-ok += tanh downward ldbl-128 -0x2p-16384L : -0x2p-16384L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-128 -0x2p-16384L : -0x2p-16384L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-128 -0x2p-16384L : -0x1.fffffffffffffffffffffffffffcp-16384L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-128 -0x2p-16384L : -0x1.fffffffffffffffffffffffffffcp-16384L : inexact-ok underflow errno-erange-ok += tanh downward dbl-64 -0x8p-972 : -0x8p-972 : inexact-ok += tanh tonearest dbl-64 -0x8p-972 : -0x8p-972 : inexact-ok += tanh towardzero dbl-64 -0x8p-972 : -0x7.ffffffffffffcp-972 : inexact-ok += tanh upward dbl-64 -0x8p-972 : -0x7.ffffffffffffcp-972 : inexact-ok += tanh downward ldbl-96-intel -0x8p-972L : -0x8p-972L : inexact-ok += tanh tonearest ldbl-96-intel -0x8p-972L : -0x8p-972L : inexact-ok += tanh towardzero ldbl-96-intel -0x8p-972L : -0x7.fffffffffffffff8p-972L : inexact-ok += tanh upward ldbl-96-intel -0x8p-972L : -0x7.fffffffffffffff8p-972L : inexact-ok += tanh downward ldbl-96-m68k -0x8p-972L : -0x8p-972L : inexact-ok += tanh tonearest ldbl-96-m68k -0x8p-972L : -0x8p-972L : inexact-ok += tanh towardzero ldbl-96-m68k -0x8p-972L : -0x7.fffffffffffffff8p-972L : inexact-ok += tanh upward ldbl-96-m68k -0x8p-972L : -0x7.fffffffffffffff8p-972L : inexact-ok += tanh downward ldbl-128 -0x8p-972L : -0x8p-972L : inexact-ok += tanh tonearest ldbl-128 -0x8p-972L : -0x8p-972L : inexact-ok += tanh towardzero ldbl-128 -0x8p-972L : -0x7.fffffffffffffffffffffffffffcp-972L : inexact-ok += tanh upward ldbl-128 -0x8p-972L : -0x7.fffffffffffffffffffffffffffcp-972L : inexact-ok += tanh downward ldbl-128ibm -0x8p-972L : -0x8p-972L : inexact-ok underflow-ok errno-erange-ok += tanh tonearest ldbl-128ibm -0x8p-972L : -0x8p-972L : inexact-ok underflow-ok errno-erange-ok += tanh towardzero ldbl-128ibm -0x8p-972L : -0x7.fffffffffffffffffffffffffcp-972L : inexact-ok underflow-ok errno-erange-ok += tanh upward ldbl-128ibm -0x8p-972L : -0x7.fffffffffffffffffffffffffcp-972L : inexact-ok underflow-ok errno-erange-ok +tanh min_subnorm += tanh downward flt-32 0x8p-152f : 0x0p+0f : inexact-ok underflow errno-erange-ok += tanh tonearest flt-32 0x8p-152f : 0x8p-152f : inexact-ok underflow errno-erange-ok += tanh towardzero flt-32 0x8p-152f : 0x0p+0f : inexact-ok underflow errno-erange-ok += tanh upward flt-32 0x8p-152f : 0x8p-152f : inexact-ok underflow errno-erange-ok += tanh downward dbl-64 0x8p-152 : 0x7.ffffffffffffcp-152 : inexact-ok += tanh tonearest dbl-64 0x8p-152 : 0x8p-152 : inexact-ok += tanh towardzero dbl-64 0x8p-152 : 0x7.ffffffffffffcp-152 : inexact-ok += tanh upward dbl-64 0x8p-152 : 0x8p-152 : inexact-ok += tanh downward ldbl-96-intel 0x8p-152L : 0x7.fffffffffffffff8p-152L : inexact-ok += tanh tonearest ldbl-96-intel 0x8p-152L : 0x8p-152L : inexact-ok += tanh towardzero ldbl-96-intel 0x8p-152L : 0x7.fffffffffffffff8p-152L : inexact-ok += tanh upward ldbl-96-intel 0x8p-152L : 0x8p-152L : inexact-ok += tanh downward ldbl-96-m68k 0x8p-152L : 0x7.fffffffffffffff8p-152L : inexact-ok += tanh tonearest ldbl-96-m68k 0x8p-152L : 0x8p-152L : inexact-ok += tanh towardzero ldbl-96-m68k 0x8p-152L : 0x7.fffffffffffffff8p-152L : inexact-ok += tanh upward ldbl-96-m68k 0x8p-152L : 0x8p-152L : inexact-ok += tanh downward ldbl-128 0x8p-152L : 0x7.fffffffffffffffffffffffffffcp-152L : inexact-ok += tanh tonearest ldbl-128 0x8p-152L : 0x8p-152L : inexact-ok += tanh towardzero ldbl-128 0x8p-152L : 0x7.fffffffffffffffffffffffffffcp-152L : inexact-ok += tanh upward ldbl-128 0x8p-152L : 0x8p-152L : inexact-ok += tanh downward ldbl-128ibm 0x8p-152L : 0x7.fffffffffffffffffffffffffep-152L : inexact-ok += tanh tonearest ldbl-128ibm 0x8p-152L : 0x8p-152L : inexact-ok += tanh towardzero ldbl-128ibm 0x8p-152L : 0x7.fffffffffffffffffffffffffep-152L : inexact-ok += tanh upward ldbl-128ibm 0x8p-152L : 0x8p-152L : inexact-ok += tanh downward dbl-64 0x4p-1076 : 0x0p+0 : inexact-ok underflow errno-erange-ok += tanh tonearest dbl-64 0x4p-1076 : 0x4p-1076 : inexact-ok underflow errno-erange-ok += tanh towardzero dbl-64 0x4p-1076 : 0x0p+0 : inexact-ok underflow errno-erange-ok += tanh upward dbl-64 0x4p-1076 : 0x4p-1076 : inexact-ok underflow errno-erange-ok += tanh downward ldbl-96-intel 0x4p-1076L : 0x3.fffffffffffffffcp-1076L : inexact-ok += tanh tonearest ldbl-96-intel 0x4p-1076L : 0x4p-1076L : inexact-ok += tanh towardzero ldbl-96-intel 0x4p-1076L : 0x3.fffffffffffffffcp-1076L : inexact-ok += tanh upward ldbl-96-intel 0x4p-1076L : 0x4p-1076L : inexact-ok += tanh downward ldbl-96-m68k 0x4p-1076L : 0x3.fffffffffffffffcp-1076L : inexact-ok += tanh tonearest ldbl-96-m68k 0x4p-1076L : 0x4p-1076L : inexact-ok += tanh towardzero ldbl-96-m68k 0x4p-1076L : 0x3.fffffffffffffffcp-1076L : inexact-ok += tanh upward ldbl-96-m68k 0x4p-1076L : 0x4p-1076L : inexact-ok += tanh downward ldbl-128 0x4p-1076L : 0x3.fffffffffffffffffffffffffffep-1076L : inexact-ok += tanh tonearest ldbl-128 0x4p-1076L : 0x4p-1076L : inexact-ok += tanh towardzero ldbl-128 0x4p-1076L : 0x3.fffffffffffffffffffffffffffep-1076L : inexact-ok += tanh upward ldbl-128 0x4p-1076L : 0x4p-1076L : inexact-ok += tanh downward ldbl-128ibm 0x4p-1076L : 0x0p+0L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-128ibm 0x4p-1076L : 0x4p-1076L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-128ibm 0x4p-1076L : 0x0p+0L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-128ibm 0x4p-1076L : 0x4p-1076L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-96-intel 0x8p-16448L : 0x0p+0L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-96-intel 0x8p-16448L : 0x8p-16448L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-96-intel 0x8p-16448L : 0x0p+0L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-96-intel 0x8p-16448L : 0x8p-16448L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-96-m68k 0x8p-16448L : 0x4p-16448L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-96-m68k 0x8p-16448L : 0x8p-16448L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-96-m68k 0x8p-16448L : 0x4p-16448L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-96-m68k 0x8p-16448L : 0x8p-16448L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-128 0x8p-16448L : 0x7.fffffffffffcp-16448L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-128 0x8p-16448L : 0x8p-16448L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-128 0x8p-16448L : 0x7.fffffffffffcp-16448L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-128 0x8p-16448L : 0x8p-16448L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-96-m68k 0x4p-16448L : 0x0p+0L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-96-m68k 0x4p-16448L : 0x4p-16448L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-96-m68k 0x4p-16448L : 0x0p+0L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-96-m68k 0x4p-16448L : 0x4p-16448L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-128 0x4p-16448L : 0x3.fffffffffffcp-16448L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-128 0x4p-16448L : 0x4p-16448L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-128 0x4p-16448L : 0x3.fffffffffffcp-16448L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-128 0x4p-16448L : 0x4p-16448L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-128 0x4p-16496L : 0x0p+0L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-128 0x4p-16496L : 0x4p-16496L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-128 0x4p-16496L : 0x0p+0L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-128 0x4p-16496L : 0x4p-16496L : inexact-ok underflow errno-erange-ok +tanh -min_subnorm += tanh downward flt-32 -0x8p-152f : -0x8p-152f : inexact-ok underflow errno-erange-ok += tanh tonearest flt-32 -0x8p-152f : -0x8p-152f : inexact-ok underflow errno-erange-ok += tanh towardzero flt-32 -0x8p-152f : -0x0p+0f : inexact-ok underflow errno-erange-ok += tanh upward flt-32 -0x8p-152f : -0x0p+0f : inexact-ok underflow errno-erange-ok += tanh downward dbl-64 -0x8p-152 : -0x8p-152 : inexact-ok += tanh tonearest dbl-64 -0x8p-152 : -0x8p-152 : inexact-ok += tanh towardzero dbl-64 -0x8p-152 : -0x7.ffffffffffffcp-152 : inexact-ok += tanh upward dbl-64 -0x8p-152 : -0x7.ffffffffffffcp-152 : inexact-ok += tanh downward ldbl-96-intel -0x8p-152L : -0x8p-152L : inexact-ok += tanh tonearest ldbl-96-intel -0x8p-152L : -0x8p-152L : inexact-ok += tanh towardzero ldbl-96-intel -0x8p-152L : -0x7.fffffffffffffff8p-152L : inexact-ok += tanh upward ldbl-96-intel -0x8p-152L : -0x7.fffffffffffffff8p-152L : inexact-ok += tanh downward ldbl-96-m68k -0x8p-152L : -0x8p-152L : inexact-ok += tanh tonearest ldbl-96-m68k -0x8p-152L : -0x8p-152L : inexact-ok += tanh towardzero ldbl-96-m68k -0x8p-152L : -0x7.fffffffffffffff8p-152L : inexact-ok += tanh upward ldbl-96-m68k -0x8p-152L : -0x7.fffffffffffffff8p-152L : inexact-ok += tanh downward ldbl-128 -0x8p-152L : -0x8p-152L : inexact-ok += tanh tonearest ldbl-128 -0x8p-152L : -0x8p-152L : inexact-ok += tanh towardzero ldbl-128 -0x8p-152L : -0x7.fffffffffffffffffffffffffffcp-152L : inexact-ok += tanh upward ldbl-128 -0x8p-152L : -0x7.fffffffffffffffffffffffffffcp-152L : inexact-ok += tanh downward ldbl-128ibm -0x8p-152L : -0x8p-152L : inexact-ok += tanh tonearest ldbl-128ibm -0x8p-152L : -0x8p-152L : inexact-ok += tanh towardzero ldbl-128ibm -0x8p-152L : -0x7.fffffffffffffffffffffffffep-152L : inexact-ok += tanh upward ldbl-128ibm -0x8p-152L : -0x7.fffffffffffffffffffffffffep-152L : inexact-ok += tanh downward dbl-64 -0x4p-1076 : -0x4p-1076 : inexact-ok underflow errno-erange-ok += tanh tonearest dbl-64 -0x4p-1076 : -0x4p-1076 : inexact-ok underflow errno-erange-ok += tanh towardzero dbl-64 -0x4p-1076 : -0x0p+0 : inexact-ok underflow errno-erange-ok += tanh upward dbl-64 -0x4p-1076 : -0x0p+0 : inexact-ok underflow errno-erange-ok += tanh downward ldbl-96-intel -0x4p-1076L : -0x4p-1076L : inexact-ok += tanh tonearest ldbl-96-intel -0x4p-1076L : -0x4p-1076L : inexact-ok += tanh towardzero ldbl-96-intel -0x4p-1076L : -0x3.fffffffffffffffcp-1076L : inexact-ok += tanh upward ldbl-96-intel -0x4p-1076L : -0x3.fffffffffffffffcp-1076L : inexact-ok += tanh downward ldbl-96-m68k -0x4p-1076L : -0x4p-1076L : inexact-ok += tanh tonearest ldbl-96-m68k -0x4p-1076L : -0x4p-1076L : inexact-ok += tanh towardzero ldbl-96-m68k -0x4p-1076L : -0x3.fffffffffffffffcp-1076L : inexact-ok += tanh upward ldbl-96-m68k -0x4p-1076L : -0x3.fffffffffffffffcp-1076L : inexact-ok += tanh downward ldbl-128 -0x4p-1076L : -0x4p-1076L : inexact-ok += tanh tonearest ldbl-128 -0x4p-1076L : -0x4p-1076L : inexact-ok += tanh towardzero ldbl-128 -0x4p-1076L : -0x3.fffffffffffffffffffffffffffep-1076L : inexact-ok += tanh upward ldbl-128 -0x4p-1076L : -0x3.fffffffffffffffffffffffffffep-1076L : inexact-ok += tanh downward ldbl-128ibm -0x4p-1076L : -0x4p-1076L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-128ibm -0x4p-1076L : -0x4p-1076L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-128ibm -0x4p-1076L : -0x0p+0L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-128ibm -0x4p-1076L : -0x0p+0L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-96-intel -0x8p-16448L : -0x8p-16448L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-96-intel -0x8p-16448L : -0x8p-16448L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-96-intel -0x8p-16448L : -0x0p+0L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-96-intel -0x8p-16448L : -0x0p+0L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-96-m68k -0x8p-16448L : -0x8p-16448L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-96-m68k -0x8p-16448L : -0x8p-16448L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-96-m68k -0x8p-16448L : -0x4p-16448L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-96-m68k -0x8p-16448L : -0x4p-16448L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-128 -0x8p-16448L : -0x8p-16448L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-128 -0x8p-16448L : -0x8p-16448L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-128 -0x8p-16448L : -0x7.fffffffffffcp-16448L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-128 -0x8p-16448L : -0x7.fffffffffffcp-16448L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-96-m68k -0x4p-16448L : -0x4p-16448L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-96-m68k -0x4p-16448L : -0x4p-16448L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-96-m68k -0x4p-16448L : -0x0p+0L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-96-m68k -0x4p-16448L : -0x0p+0L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-128 -0x4p-16448L : -0x4p-16448L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-128 -0x4p-16448L : -0x4p-16448L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-128 -0x4p-16448L : -0x3.fffffffffffcp-16448L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-128 -0x4p-16448L : -0x3.fffffffffffcp-16448L : inexact-ok underflow errno-erange-ok += tanh downward ldbl-128 -0x4p-16496L : -0x4p-16496L : inexact-ok underflow errno-erange-ok += tanh tonearest ldbl-128 -0x4p-16496L : -0x4p-16496L : inexact-ok underflow errno-erange-ok += tanh towardzero ldbl-128 -0x4p-16496L : -0x0p+0L : inexact-ok underflow errno-erange-ok += tanh upward ldbl-128 -0x4p-16496L : -0x0p+0L : inexact-ok underflow errno-erange-ok tgamma 0.5 = tgamma downward flt-32 0x8p-4f : 0x1.c5bf88p+0f : inexact-ok = tgamma tonearest flt-32 0x8p-4f : 0x1.c5bf8ap+0f : inexact-ok diff --git a/sysdeps/i386/fpu/libm-test-ulps b/sysdeps/i386/fpu/libm-test-ulps index 3603765..de53451 100644 --- a/sysdeps/i386/fpu/libm-test-ulps +++ b/sysdeps/i386/fpu/libm-test-ulps @@ -1988,12 +1988,16 @@ ldouble: 4 Function: "tanh_towardzero": double: 1 float: 1 +idouble: 1 +ifloat: 1 ildouble: 3 ldouble: 3 Function: "tanh_upward": double: 1 float: 1 +idouble: 1 +ifloat: 1 ildouble: 5 ldouble: 4 diff --git a/sysdeps/ieee754/dbl-64/s_tanh.c b/sysdeps/ieee754/dbl-64/s_tanh.c index 23cfcde..4f9fcfd 100644 --- a/sysdeps/ieee754/dbl-64/s_tanh.c +++ b/sysdeps/ieee754/dbl-64/s_tanh.c @@ -38,6 +38,7 @@ static char rcsid[] = "$NetBSD: s_tanh.c,v 1.7 1995/05/10 20:48:22 jtc Exp $"; * only tanh(0)=0 is exact for finite argument. */ +#include <float.h> #include <math.h> #include <math_private.h> @@ -68,7 +69,14 @@ __tanh (double x) if ((ix | lx) == 0) return x; /* x == +-0 */ if (ix < 0x3c800000) /* |x|<2**-55 */ - return x * (one + x); /* tanh(small) = small */ + { + if (fabs (x) < DBL_MIN) + { + double force_underflow = x * x; + math_force_eval (force_underflow); + } + return x * (one + x); /* tanh(small) = small */ + } if (ix >= 0x3ff00000) /* |x|>=1 */ { t = __expm1 (two * fabs (x)); diff --git a/sysdeps/ieee754/flt-32/s_tanhf.c b/sysdeps/ieee754/flt-32/s_tanhf.c index dc96da9..5b48fb2 100644 --- a/sysdeps/ieee754/flt-32/s_tanhf.c +++ b/sysdeps/ieee754/flt-32/s_tanhf.c @@ -17,6 +17,7 @@ static char rcsid[] = "$NetBSD: s_tanhf.c,v 1.4 1995/05/10 20:48:24 jtc Exp $"; #endif +#include <float.h> #include <math.h> #include <math_private.h> @@ -41,7 +42,14 @@ float __tanhf(float x) if (ix == 0) return x; /* x == +-0 */ if (ix<0x24000000) /* |x|<2**-55 */ + { + if (fabsf (x) < FLT_MIN) + { + float force_underflow = x * x; + math_force_eval (force_underflow); + } return x*(one+x); /* tanh(small) = small */ + } if (ix>=0x3f800000) { /* |x|>=1 */ t = __expm1f(two*fabsf(x)); z = one - two/(t+two); diff --git a/sysdeps/ieee754/ldbl-128/s_tanhl.c b/sysdeps/ieee754/ldbl-128/s_tanhl.c index 129735b..8b1706f 100644 --- a/sysdeps/ieee754/ldbl-128/s_tanhl.c +++ b/sysdeps/ieee754/ldbl-128/s_tanhl.c @@ -41,6 +41,7 @@ * only tanhl(0)=0 is exact for finite argument. */ +#include <float.h> #include <math.h> #include <math_private.h> @@ -73,7 +74,14 @@ __tanhl (long double x) if (u.value == 0) return x; /* x == +- 0 */ if (ix < 0x3fc60000) /* |x| < 2^-57 */ - return x * (one + tiny); /* tanh(small) = small */ + { + if (fabsl (x) < LDBL_MIN) + { + long double force_underflow = x * x; + math_force_eval (force_underflow); + } + return x * (one + tiny); /* tanh(small) = small */ + } u.parts32.w0 = ix; /* Absolute value of x. */ if (ix >= 0x3fff0000) { /* |x| >= 1 */ diff --git a/sysdeps/ieee754/ldbl-128ibm/s_tanhl.c b/sysdeps/ieee754/ldbl-128ibm/s_tanhl.c index fe396e9..5342a8b 100644 --- a/sysdeps/ieee754/ldbl-128ibm/s_tanhl.c +++ b/sysdeps/ieee754/ldbl-128ibm/s_tanhl.c @@ -38,6 +38,7 @@ static char rcsid[] = "$NetBSD: s_tanh.c,v 1.7 1995/05/10 20:48:22 jtc Exp $"; * only tanh(0)=0 is exact for finite argument. */ +#include <float.h> #include <math.h> #include <math_private.h> #include <math_ldbl_opt.h> @@ -66,7 +67,14 @@ long double __tanhl(long double x) if (ix == 0) return x; /* x == +-0 */ if (ix<0x3c60000000000000LL) /* |x|<2**-57 */ + { + if (fabsl (x) < LDBL_MIN) + { + long double force_underflow = x * x; + math_force_eval (force_underflow); + } return x*(one+x); /* tanh(small) = small */ + } if (ix>=0x3ff0000000000000LL) { /* |x|>=1 */ t = __expm1l(two*fabsl(x)); z = one - two/(t+two); diff --git a/sysdeps/ieee754/ldbl-96/s_tanhl.c b/sysdeps/ieee754/ldbl-96/s_tanhl.c index 7ec6247..035037c 100644 --- a/sysdeps/ieee754/ldbl-96/s_tanhl.c +++ b/sysdeps/ieee754/ldbl-96/s_tanhl.c @@ -42,6 +42,7 @@ static char rcsid[] = "$NetBSD: $"; * only tanhl(0)=0 is exact for finite argument. */ +#include <float.h> #include <math.h> #include <math_private.h> @@ -69,7 +70,14 @@ long double __tanhl(long double x) if ((ix|j0|j1) == 0) return x; /* x == +- 0 */ if (ix<0x3fc8) /* |x|<2**-55 */ + { + if (fabsl (x) < LDBL_MIN) + { + long double force_underflow = x * x; + math_force_eval (force_underflow); + } return x*(one+tiny); /* tanh(small) = small */ + } if (ix>=0x3fff) { /* |x|>=1 */ t = __expm1l(two*fabsl(x)); z = one - two/(t+two); |