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Running the testsuite on sparc64, I get lots of serious failures while
testing the long double functions (see below). Are these known
problems or might this be a compiler bug in the handling of long
doubles (I've tried gcc 2.96 RH)?
Jakub, what are your results on sparc64?
Andreas
phex:/usr/src/packages/BUILD/glibc-2.2/cc # cat math/test-ldouble.out
testing long double (without inline functions)
Failure: Test: acos (1) == 0
Result:
is: 3.14159265358979323846e+00 0x1.921fb54442d18469898dp+1
should be: 0.00000000000000000000e+00 0x0.00000000000000000000p+0
difference: 3.14159265358979323846e+00 0x1.921fb54442d18469898dp+1
ulp : 16312081666030376401667486162748272.0000
max.ulp : 0.0000
Failure: Test: acos (-1) == pi
Result:
is: 0.00000000000000000000e+00 0x0.00000000000000000000p+0
should be: 3.14159265358979323846e+00 0x1.921fb54442d18469898dp+1
difference: 3.14159265358979323846e+00 0x1.921fb54442d18469898dp+1
ulp : 8156040833015188200833743081374136.0000
max.ulp : 0.0000
Failure: Test: acos (0.7) == 0.79539883018414355549096833892476432
Result:
is: 7.95398830184143555491e-01 0x1.973e83f5d5c9aaf84fcap-1
should be: 7.95398830184143555491e-01 0x1.973e83f5d5c9aaf84fcap-1
difference: 9.62964972193617926528e-35 0x1.00000000000000000000p-113
ulp : 1.0000
max.ulp : 0.0000
Maximal error of `acos'
is : 16312081666030376401667486162748272.0000 ulp
accepted: 0.0000 ulp
Failure: Test: asinh (0.7) == 0.652666566082355786
Result:
is: 6.52666566082355786809e-01 0x1.4e2a4fe9085dd731ba02p-1
should be: 6.52666566082355786000e-01 0x1.4e2a4fe9085dd713e42ep-1
difference: 8.08686344109675845571e-19 0x1.dd5d39a4c60190000000p-61
ulp : 8397879128121369.0000
max.ulp : 0.0000
Maximal error of `asinh'
is : 8397879128121369.0000 ulp
accepted: 0.0000 ulp
Failure: Test: cosh (0.7) == 1.255169005630943018
Result:
is: 1.25516900563094301816e+00 0x1.4152c1862342ef8e074bp+0
should be: 1.25516900563094301800e+00 0x1.4152c1862342ef8afda4p+0
difference: 1.64674740990296899314e-19 0x1.84d3c5ea963980000000p-63
ulp : 855040140323955.0000
max.ulp : 0.0000
Maximal error of `cosh'
is : 855040140323955.0000 ulp
accepted: 0.0000 ulp
Failure: Test: sinh (0.7) == 0.75858370183953350346
Result:
is: 7.58583701839533503460e-01 0x1.8465153d5bdbd0df16f9p-1
should be: 7.58583701839533503460e-01 0x1.8465153d5bdbd0df1828p-1
difference: 1.25352407231905242755e-22 0x1.2f1561c8900000000000p-73
ulp : 1301733820560.0000
max.ulp : 0.0000
Maximal error of `sinh'
is : 1301733820560.0000 ulp
accepted: 0.0000 ulp
Failure: Test: tanh (0.7) == 0.60436777711716349631
Result:
is: 6.04367777117163496309e-01 0x1.356fb17af2e9100a0837p-1
should be: 6.04367777117163496310e-01 0x1.356fb17af2e9100a149dp-1
difference: 1.31281689617357568517e-21 0x1.8cc64999b26000000000p-70
ulp : 13633070091667.0000
max.ulp : 0.0000
Failure: Test: tanh (-0.7) == -0.60436777711716349631
Result:
is: -6.04367777117163496309e-01 -0x1.356fb17af2e9100a0837p-1
should be: -6.04367777117163496310e-01 -0x1.356fb17af2e9100a149dp-1
difference: 1.31281689617357568517e-21 0x1.8cc64999b26000000000p-70
ulp : 13633070091667.0000
max.ulp : 0.0000
Failure: Test: tanh (1.0) == 0.7615941559557648881194582826047935904
Result:
is: 7.61594155955764888119e-01 0x1.85efab514f394558632cp-1
should be: 7.61594155955764888119e-01 0x1.85efab514f394558632cp-1
difference: 9.62964972193617926528e-35 0x1.00000000000000000000p-113
ulp : 1.0000
max.ulp : 0.0000
Failure: Test: tanh (-1.0) == -0.7615941559557648881194582826047935904
Result:
is: -7.61594155955764888119e-01 -0x1.85efab514f394558632cp-1
should be: -7.61594155955764888119e-01 -0x1.85efab514f394558632cp-1
difference: 9.62964972193617926528e-35 0x1.00000000000000000000p-113
ulp : 1.0000
max.ulp : 0.0000
Maximal error of `tanh'
is : 13633070091667.0000 ulp
accepted: 0.0000 ulp
Failure: Test: expm1 (-0) == -0
Result:
is: 0.00000000000000000000e+00 0x0.00000000000000000000p+0
should be: -0.00000000000000000000e+00 -0x0.00000000000000000000p+0
difference: 0.00000000000000000000e+00 0x0.00000000000000000000p+0
ulp : 0.0000
max.ulp : 0.0000
Failure: expm1 (NaN) == NaN: Exception "Invalid operation" set
Failure: Test: expm1 (1) == M_El - 1.0
Result:
is: 1.71828182845904523536e+00 0x1.b7e151628aed2a6abf71p+0
should be: 1.71828182845904523536e+00 0x1.b7e151628aed2a6abf71p+0
difference: 1.92592994438723585306e-34 0x1.00000000000000000000p-112
ulp : 1.0000
max.ulp : 0.0000
Failure: Test: expm1 (0.7) == 1.0137527074704765216
Result:
is: 1.01375270747047652162e+00 0x1.03854c24d130d7fd92c8p+0
should be: 1.01375270747047652160e+00 0x1.03854c24d130d7fd1edap+0
difference: 2.45493885830653538343e-20 0x1.cfb98f1123c400000000p-66
ulp : 127467713218801.0000
max.ulp : 0.0000
Maximal error of `expm1'
is : 127467713218801.0000 ulp
accepted: 0.0000 ulp
Failure: Test: log1p (-0) == -0
Result:
is: 0.00000000000000000000e+00 0x0.00000000000000000000p+0
should be: -0.00000000000000000000e+00 -0x0.00000000000000000000p+0
difference: 0.00000000000000000000e+00 0x0.00000000000000000000p+0
ulp : 0.0000
max.ulp : 0.0000
Failure: log1p (-1) == -inf plus division by zero exception: Exception "Divide by zero" not set
Failure: log1p (NaN) == NaN: Exception "Invalid operation" set
Failure: Test: log1p (M_El - 1.0) == 1
Result:
is: 1.00000000000000000000e-00 0x2.00000000000000000000p-1
should be: 1.00000000000000000000e+00 0x1.00000000000000000000p+0
difference: 9.62964972193617926528e-35 0x1.00000000000000000000p-113
ulp : 0.5000
max.ulp : 0.0000
Failure: Test: log1p (-0.3) == -0.35667494393873237891263871124118447
Result:
is: -3.56674943938732378913e-01 -0x1.6d3c324e13f4ec52cb1bp-2
should be: -3.56674943938732378913e-01 -0x1.6d3c324e13f4ec52cb1bp-2
difference: 4.81482486096808963264e-35 0x1.00000000000000000000p-114
ulp : 1.0000
max.ulp : 0.0000
Maximal error of `log1p'
is : 1.0000 ulp
accepted: 0.0000 ulp
Failure: Test: Real part of: ccos (0.7 + 1.2 i) == 1.3848657645312111080 - 0.97242170335830028619 i
Result:
is: 1.38486576453121110799e+00 0x1.6286901002f7766f09ffp+0
should be: 1.38486576453121110800e+00 0x1.6286901002f7766f2d4dp+0
difference: 7.47636787767084019408e-21 0x1.1a72fe49d40800000000p-67
ulp : 38819521444481.0000
max.ulp : 0.0000
Failure: Test: Imaginary part of: ccos (0.7 + 1.2 i) == 1.3848657645312111080 - 0.97242170335830028619 i
Result:
is: -9.72421703358300286193e-01 -0x1.f1e141ebb064055d790ap-1
should be: -9.72421703358300286190e-01 -0x1.f1e141ebb064055d5ca4p-1
difference: 3.00683508283153742657e-21 0x1.c6614c5313d000000000p-69
ulp : 31224760709437.0000
max.ulp : 0.0000
Failure: Test: Real part of: ccos (-2 - 3 i) == -4.1896256909688072301 - 9.1092278937553365979 i
Result:
is: -4.18962569096880723013e+00 -0x1.0c22d3cb4c50c447f284p+2
should be: -4.18962569096880723010e+00 -0x1.0c22d3cb4c50c447cc15p+2
difference: 3.25550196159744832644e-20 0x1.33793521943800000000p-65
ulp : 42258831520391.0000
max.ulp : 0.0000
Failure: Test: Imaginary part of: ccos (-2 - 3 i) == -4.1896256909688072301 - 9.1092278937553365979 i
Result:
is: -9.10922789375533659798e+00 -0x1.237ecb7eefaf2c0f2d69p+3
should be: -9.10922789375533659790e+00 -0x1.237ecb7eefaf2c0efea9p+3
difference: 7.91972627788630793578e-20 0x1.75ff9da620f000000000p-64
ulp : 51401962341406.0000
max.ulp : 0.0000
Maximal error of real part of: ccos
is : 42258831520391.0000 ulp
accepted: 0.0000 ulp
Maximal error of imaginary part of: ccos
is : 51401962341406.0000 ulp
accepted: 0.0000 ulp
Failure: Test: Real part of: ccosh (0.7 + 1.2 i) == 0.4548202223691477654 + 0.7070296600921537682 i
Result:
is: 4.54820222369147765419e-01 0x1.d1bc64728a2d005e4e19p-2
should be: 4.54820222369147765400e-01 0x1.d1bc64728a2d005ce68ep-2
difference: 1.90339416362119856540e-20 0x1.678a7e74f69b00000000p-66
ulp : 395319501452955.0000
max.ulp : 0.0000
Failure: Test: Imaginary part of: ccosh (0.7 + 1.2 i) == 0.4548202223691477654 + 0.7070296600921537682 i
Result:
is: 7.07029660092153768241e-01 0x1.69ffcaa6cbac0507f7fep-1
should be: 7.07029660092153768200e-01 0x1.69ffcaa6cbac050673dcp-1
difference: 4.10955359795455808950e-20 0x1.8422e8b6657f00000000p-65
ulp : 426760444732799.0000
max.ulp : 0.0000
Failure: Test: Real part of: ccosh (-2 - 3 i) == -3.7245455049153225654 + 0.5118225699873846088 i
Result:
is: -3.72454550491532256547e+00 -0x1.dcbde838099d74abb58cp+1
should be: -3.72454550491532256540e+00 -0x1.dcbde838099d74ab06e3p+1
difference: 7.39707032559728934121e-20 0x1.5d5117d2dbd000000000p-64
ulp : 192038925069800.0000
max.ulp : 0.0000
Failure: Test: Imaginary part of: ccosh (-2 - 3 i) == -3.7245455049153225654 + 0.5118225699873846088 i
Result:
is: 5.11822569987384608834e-01 0x1.060d9b9ee6a65de2db56p-1
should be: 5.11822569987384608800e-01 0x1.060d9b9ee6a65de195d6p-1
difference: 3.44638498018757310698e-20 0x1.458079c9f0bf00000000p-65
ulp : 357893078118591.0000
max.ulp : 0.0000
Maximal error of real part of: ccosh
is : 395319501452955.0000 ulp
accepted: 0.0000 ulp
Maximal error of imaginary part of: ccosh
is : 426760444732799.0000 ulp
accepted: 0.0000 ulp
Failure: Test: Real part of: csin (0.7 + 1.2 i) == 1.1664563419657581376 + 1.1544997246948547371 i
Result:
is: 1.16645634196575813756e+00 0x1.2a9ce200f468c3436a7cp+0
should be: 1.16645634196575813760e+00 0x1.2a9ce200f468c34428dap+0
difference: 4.03112213244929697153e-20 0x1.7cba8d747da600000000p-65
ulp : 209307827846867.0000
max.ulp : 0.0000
Failure: Test: Imaginary part of: csin (0.7 + 1.2 i) == 1.1664563419657581376 + 1.1544997246948547371 i
Result:
is: 1.15449972469485473706e+00 0x1.278d4b40ce2f0033ddafp+0
should be: 1.15449972469485473710e+00 0x1.278d4b40ce2f00348631p+0
difference: 3.56827762193615058161e-20 0x1.5103a8b2891000000000p-65
ulp : 185275566867592.0000
max.ulp : 0.0000
Failure: Test: Real part of: csin (-2 - 3 i) == -9.1544991469114295734 + 4.1689069599665643507 i
Result:
is: -9.15449914691142957347e+00 -0x1.24f1a831e7d2db7d75a5p+3
should be: -9.15449914691142957340e+00 -0x1.24f1a831e7d2db7d4debp+3
difference: 6.72995446098336976393e-20 0x1.3dd028397be000000000p-64
ulp : 43679901757308.0000
max.ulp : 0.0000
Failure: Test: Imaginary part of: csin (-2 - 3 i) == -9.1544991469114295734 + 4.1689069599665643507 i
Result:
is: 4.16890695996656435075e+00 0x1.0acf5f2347e219fb76dfp+2
should be: 4.16890695996656435070e+00 0x1.0acf5f2347e219fb3629p+2
difference: 5.48130588537556343472e-20 0x1.02d8ec0ec4f000000000p-64
ulp : 71151418323260.0000
max.ulp : 0.0000
Maximal error of real part of: csin
is : 209307827846867.0000 ulp
accepted: 0.0000 ulp
Maximal error of imaginary part of: csin
is : 185275566867592.0000 ulp
accepted: 0.0000 ulp
Failure: Test: Real part of: csinh (0.7 + 1.2 i) == 0.27487868678117583582 + 1.1698665727426565139 i
Result:
is: 2.74878686781175835815e-01 0x1.1979cc685eccb1d6d6a7p-2
should be: 2.74878686781175835820e-01 0x1.1979cc685eccb1d72bfap-2
difference: 4.51705520690466925452e-21 0x1.554c8e004bf800000000p-68
ulp : 93815566242558.0000
max.ulp : 0.0000
Failure: Test: Imaginary part of: csinh (0.7 + 1.2 i) == 0.27487868678117583582 + 1.1698665727426565139 i
Result:
is: 1.16986657274265651387e+00 0x1.2b7c602e9d02320ec0b7p+0
should be: 1.16986657274265651390e+00 0x1.2b7c602e9d02320f40ecp+0
difference: 2.71487451592385631293e-20 0x1.0069a35311aa00000000p-65
ulp : 140964344203477.0000
max.ulp : 0.0000
Failure: Test: Real part of: csinh (-2 - 3 i) == 3.5905645899857799520 - 0.5309210862485198052 i
Result:
is: 3.59056458998577995201e+00 0x1.cb979ed81510c2c39f97p+1
should be: 3.59056458998577995200e+00 0x1.cb979ed81510c2c381ecp+1
difference: 1.25654477948170603913e-20 0x1.dab58ddf9e4000000000p-67
ulp : 32621767555556.0000
max.ulp : 0.0000
Failure: Test: Imaginary part of: csinh (-2 - 3 i) == 3.5905645899857799520 - 0.5309210862485198052 i
Result:
is: -5.30921086248519805267e-01 -0x1.0fd4e37c636c986b1916p-1
should be: -5.30921086248519805200e-01 -0x1.0fd4e37c636c98689fe9p-1
difference: 6.70400906606765716814e-20 0x1.3c967f1dd5c900000000p-64
ulp : 696184104266642.0000
max.ulp : 0.0000
Maximal error of real part of: csinh
is : 93815566242558.0000 ulp
accepted: 0.0000 ulp
Maximal error of imaginary part of: csinh
is : 696184104266642.0000 ulp
accepted: 0.0000 ulp
Failure: Test: Real part of: ctan (0.7 + 1.2 i) == 0.1720734197630349001 + 0.9544807059989405538 i
Result:
is: 1.72073419763034900130e-01 0x1.606807732519758c3801p-3
should be: 1.72073419763034900100e-01 0x1.6068077325197587cd7ap-3
difference: 2.99248446332855293596e-20 0x1.1aa1d5aba3de80000000p-65
ulp : 1243029414252410.0000
max.ulp : 0.0000
Failure: Test: Imaginary part of: ctan (0.7 + 1.2 i) == 0.1720734197630349001 + 0.9544807059989405538 i
Result:
is: 9.54480705998940553818e-01 0x1.e8b1b1f1db5c93f997f7p-1
should be: 9.54480705998940553800e-01 0x1.e8b1b1f1db5c93f8f197p-1
difference: 1.76153916578609461805e-20 0x1.4cbecea415f000000000p-66
ulp : 182928685533944.0000
max.ulp : 0.0000
Failure: Test: Real part of: ctan (-2 - 3 i) == 0.0037640256415042482 - 1.0032386273536098014 i
Result:
is: 3.76402564150424829275e-03 0x1.ed5bbe102970caf35086p-9
should be: 3.76402564150424820000e-03 0x1.ed5bbe102970c7874dd5p-9
difference: 9.27512211303226914083e-20 0x1.b60158951c13a2800000p-64
ulp : 246575039539324741.0000
max.ulp : 0.0000
Failure: Test: Imaginary part of: ctan (-2 - 3 i) == 0.0037640256415042482 - 1.0032386273536098014 i
Result:
is: -1.00323862735360980145e+00 -0x1.00d43f269153cff541f8p+0
should be: -1.00323862735360980140e+00 -0x1.00d43f269153cff4670cp+0
difference: 4.63585978219273727559e-20 0x1.b5d83634569200000000p-65
ulp : 240707601836873.0000
max.ulp : 0.0000
Maximal error of real part of: ctan
is : 246575039539324741.0000 ulp
accepted: 0.0000 ulp
Maximal error of imaginary part of: ctan
is : 240707601836873.0000 ulp
accepted: 0.0000 ulp
Failure: Test: Real part of: ctanh (0.7 + 1.2 i) == 1.3472197399061191630 + 0.4778641038326365540 i
Result:
is: 1.34721973990611916300e+00 0x1.58e364936c22ecd622f7p+0
should be: 1.34721973990611916300e+00 0x1.58e364936c22ecd60f39p+0
difference: 4.18064448364791006814e-21 0x1.3be16cc9098000000000p-68
ulp : 21707147219096.0000
max.ulp : 0.0000
Failure: Test: Imaginary part of: ctanh (0.7 + 1.2 i) == 1.3472197399061191630 + 0.4778641038326365540 i
Result:
is: 4.77864103832636554031e-01 0x1.e955352792f77fa0888ep-2
should be: 4.77864103832636554000e-01 0x1.e955352792f77f9e430ep-2
difference: 3.07843344242600000865e-20 0x1.22bff415514580000000p-65
ulp : 639365611692683.0000
max.ulp : 0.0000
Failure: Test: Real part of: ctanh (-2 - 3 i) == -0.9653858790221331242 + 0.0098843750383224937 i
Result:
is: -9.65385879022133124278e-01 -0x1.ee470ed4d72e2f093fe1p-1
should be: -9.65385879022133124200e-01 -0x1.ee470ed4d72e2f065aa7p-1
difference: 7.84802693945607960525e-20 0x1.729cd2f1c16900000000p-64
ulp : 814985712468690.0000
max.ulp : 0.0000
Failure: Test: Imaginary part of: ctanh (-2 - 3 i) == -0.9653858790221331242 + 0.0098843750383224937 i
Result:
is: 9.88437503832249372031e-03 0x1.43e425c3f79b5196f5bep-7
should be: 9.88437503832249370000e-03 0x1.43e425c3f79b5166fea9p-7
difference: 2.03140343035012093862e-20 0x1.7fb8a46c78f838000000p-66
ulp : 13500991551774471.0000
max.ulp : 0.0000
Maximal error of real part of: ctanh
is : 814985712468690.0000 ulp
accepted: 0.0000 ulp
Maximal error of imaginary part of: ctanh
is : 13500991551774471.0000 ulp
accepted: 0.0000 ulp
Test suite completed:
2052 test cases plus 1869 tests for exception flags executed.
56 errors occurred.
--
Andreas Jaeger
SuSE Labs aj@suse.de
private aj@arthur.inka.de
http://www.suse.de/~aj
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