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Fix Bessel function error handling (bug 6807, bug 15901).

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This commit is contained in:
Joseph Myers 2013-12-04 14:39:37 +00:00
parent 5b118558f9
commit 699ff83712
17 changed files with 156 additions and 49 deletions
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28
ChangeLog
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@ -1,3 +1,31 @@
2013-12-04 Joseph Myers <joseph@codesourcery.com>
[BZ #6807]
[BZ #15901]
* math/w_j0.c (y0): Raise FE_DIVBYZERO on zero argument.
* math/w_j0f.c (y0f): Likewise.
* math/w_j0l.c (__y0l): Likewise.
* math/w_j1.c (y1): Likewise.
* math/w_j1f.c (y1f): Likewise.
* math/w_j1l.c (__y1l): Likewise
* math/w_jn.c (yn): Likewise.
* math/w_jnf.c (ynf): Likewise.
* sysdeps/ieee754/k_standard.c (__kernel_standard): Use ERANGE for
Bessel function pole errors in _POSIX_ mode. Use NAN as return
value for Bessel function domain errors outside _SVID_ mode.
Adjust sign of return value for yn (negative integer, 0).
* sysdeps/ieee754/ldbl-128/e_jnl.c (__ieee754_ynl): Use division
by zero in return for negative x and set sign appropriately for
negative n.
* sysdeps/ieee754/ldbl-128ibm/e_jnl.c (__ieee754_ynl): Likewise.
* sysdeps/ieee754/ldbl-96/e_jnl.c (__ieee754_ynl): Likewise.
* math/libm-test.inc (y0_test_data): Add more tests and adjust
expectations in error cases.
(y1_test_data): Likewise.
(yn_test_data): Likewise.
* sysdeps/i386/fpu/libm-test-ulps: Update.
* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2013-11-12 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* sysdeps/unix/sysv/linux/powerpc/Makefile (abi-variants): Rename

24
NEWS
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@ -9,18 +9,18 @@ Version 2.19
* The following bugs are resolved with this release:
156, 387, 431, 832, 2801, 6786, 6787, 7003, 9954, 10253, 10278, 11087,
11157, 11214, 13028, 13982, 13985, 14029, 14032, 14143, 14155, 14547,
14699, 14752, 14876, 14910, 15004, 15048, 15218, 15268, 15277, 15308,
15362, 15374, 15400, 15425, 15427, 15483, 15522, 15531, 15532, 15601,
15608, 15609, 15610, 15632, 15640, 15670, 15672, 15680, 15681, 15723,
15734, 15735, 15736, 15748, 15749, 15754, 15760, 15763, 15764, 15797,
15799, 15825, 15844, 15847, 15849, 15855, 15856, 15857, 15859, 15867,
15886, 15887, 15890, 15892, 15893, 15895, 15897, 15905, 15909, 15917,
15919, 15921, 15923, 15939, 15948, 15963, 15966, 15985, 15988, 15997,
16032, 16034, 16036, 16037, 16041, 16055, 16071, 16072, 16074, 16077,
16078, 16103, 16112, 16143, 16144, 16146, 16150, 16151, 16153, 16167,
16172, 16195, 16214, 16245, 16271, 16283, 16289.
156, 387, 431, 832, 2801, 6786, 6787, 6807, 7003, 9954, 10253, 10278,
11087, 11157, 11214, 13028, 13982, 13985, 14029, 14032, 14143, 14155,
14547, 14699, 14752, 14876, 14910, 15004, 15048, 15218, 15268, 15277,
15308, 15362, 15374, 15400, 15425, 15427, 15483, 15522, 15531, 15532,
15601, 15608, 15609, 15610, 15632, 15640, 15670, 15672, 15680, 15681,
15723, 15734, 15735, 15736, 15748, 15749, 15754, 15760, 15763, 15764,
15797, 15799, 15825, 15844, 15847, 15849, 15855, 15856, 15857, 15859,
15867, 15886, 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905,
15909, 15917, 15919, 15921, 15923, 15939, 15948, 15963, 15966, 15985,
15988, 15997, 16032, 16034, 16036, 16037, 16041, 16055, 16071, 16072,
16074, 16077, 16078, 16103, 16112, 16143, 16144, 16146, 16150, 16151,
16153, 16167, 16172, 16195, 16214, 16245, 16271, 16283, 16289.
* The public headers no longer use __unused nor __block. This change is to
support compiling programs that are derived from BSD sources and use

66
math/libm-test.inc
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@ -14278,9 +14278,11 @@ trunc_test (void)
static const struct test_f_f_data y0_test_data[] =
{
/* y0 is the Bessel function of the second kind of order 0 */
TEST_f_f (y0, -1.0, minus_infty, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_f_f (y0, -max_value, minus_infty, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_f_f (y0, 0.0, minus_infty),
TEST_f_f (y0, -1.0, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_f_f (y0, -max_value, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_f_f (y0, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_f_f (y0, 0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_f_f (y0, -0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_f_f (y0, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
TEST_f_f (y0, plus_infty, 0),
@ -14329,9 +14331,11 @@ y0_test (void)
static const struct test_f_f_data y1_test_data[] =
{
/* y1 is the Bessel function of the second kind of order 1 */
TEST_f_f (y1, -1.0, minus_infty, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_f_f (y1, -max_value, minus_infty, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_f_f (y1, 0.0, minus_infty),
TEST_f_f (y1, -1.0, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_f_f (y1, -max_value, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_f_f (y1, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_f_f (y1, 0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_f_f (y1, -0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_f_f (y1, plus_infty, 0),
TEST_f_f (y1, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
@ -14381,9 +14385,11 @@ static const struct test_if_f_data yn_test_data[] =
{
/* yn is the Bessel function of the second kind of order n */
/* yn (0, x) == y0 (x) */
TEST_if_f (yn, 0, -1.0, minus_infty, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 0, -max_value, minus_infty, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 0, 0.0, minus_infty),
TEST_if_f (yn, 0, -1.0, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 0, -max_value, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 0, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 0, 0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_if_f (yn, 0, -0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_if_f (yn, 0, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
TEST_if_f (yn, 0, plus_infty, 0),
@ -14396,8 +14402,11 @@ static const struct test_if_f_data yn_test_data[] =
TEST_if_f (yn, 0, 10.0, 0.0556711672835993914244598774101900481L),
/* yn (1, x) == y1 (x) */
TEST_if_f (yn, 1, -1.0, minus_infty, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 1, 0.0, minus_infty),
TEST_if_f (yn, 1, -1.0, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 1, -max_value, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 1, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 1, 0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_if_f (yn, 1, -0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_if_f (yn, 1, plus_infty, 0),
TEST_if_f (yn, 1, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
@ -14409,7 +14418,40 @@ static const struct test_if_f_data yn_test_data[] =
TEST_if_f (yn, 1, 8.0, -0.158060461731247494255555266187483550L),
TEST_if_f (yn, 1, 10.0, 0.249015424206953883923283474663222803L),
/* yn (-1, x) == -y1 (x). */
TEST_if_f (yn, -1, -1.0, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, -1, -max_value, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, -1, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, -1, 0.0, plus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_if_f (yn, -1, -0.0, plus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_if_f (yn, -1, plus_infty, minus_zero),
TEST_if_f (yn, -1, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
TEST_if_f (yn, -1, 1.0, 0.781212821300288716547150000047964821L),
/* yn (2, x). */
TEST_if_f (yn, 2, -1.0, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 2, -max_value, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 2, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 2, 0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_if_f (yn, 2, -0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_if_f (yn, 2, plus_infty, 0),
TEST_if_f (yn, 2, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
/* yn (-2, x) == yn (2, x). */
TEST_if_f (yn, -2, -1.0, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, -2, -max_value, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, -2, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, -2, 0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_if_f (yn, -2, -0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_if_f (yn, -2, plus_infty, 0),
TEST_if_f (yn, -2, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
/* yn (3, x) */
TEST_if_f (yn, 3, -1.0, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 3, -max_value, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 3, minus_infty, qnan_value, INVALID_EXCEPTION|ERRNO_EDOM),
TEST_if_f (yn, 3, 0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_if_f (yn, 3, -0.0, minus_infty, DIVIDE_BY_ZERO_EXCEPTION|ERRNO_ERANGE),
TEST_if_f (yn, 3, plus_infty, 0),
TEST_if_f (yn, 3, qnan_value, qnan_value, NO_INEXACT_EXCEPTION),
@ -14429,6 +14471,8 @@ static const struct test_if_f_data yn_test_data[] =
TEST_if_f (yn, 10, 2.0, -129184.542208039282635913145923304214L),
TEST_if_f (yn, 10, 10.0, -0.359814152183402722051986577343560609L),
TEST_if_f (yn, -10, 1.0, -121618014.278689189288130426667971145L),
/* Check whether yn returns correct value for LDBL_MIN, DBL_MIN,
and FLT_MIN. See Bug 14173. */
TEST_if_f (yn, 10, min_value, minus_infty, OVERFLOW_EXCEPTION|ERRNO_ERANGE),

3
math/w_j0.c
View File

@ -51,8 +51,11 @@ y0 (double x)
return __kernel_standard (x, x, 9);
}
else if (x == 0.0)
{
/* d = -one/(x-x) */
feraiseexcept (FE_DIVBYZERO);
return __kernel_standard (x, x, 8);
}
else if (_LIB_VERSION != _POSIX_)
/* y0(x>X_TLOSS) */
return __kernel_standard (x, x, 35);

3
math/w_j0f.c
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@ -49,8 +49,11 @@ y0f (float x)
return __kernel_standard_f (x, x, 109);
}
else if (x == 0.0f)
{
/* d = -one/(x-x) */
feraiseexcept (FE_DIVBYZERO);
return __kernel_standard_f (x, x, 108);
}
else if (_LIB_VERSION != _POSIX_)
/* y0(x>X_TLOSS) */
return __kernel_standard_f (x, x, 135);

3
math/w_j0l.c
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@ -49,8 +49,11 @@ __y0l (long double x)
return __kernel_standard_l (x, x, 209);
}
else if (x == 0.0L)
{
/* d = -one/(x-x) */
feraiseexcept (FE_DIVBYZERO);
return __kernel_standard_l (x, x, 208);
}
else if (_LIB_VERSION != _POSIX_)
/* y0(x>X_TLOSS) */
return __kernel_standard_l (x, x, 235);

3
math/w_j1.c
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@ -51,8 +51,11 @@ y1 (double x)
return __kernel_standard (x, x, 11);
}
else if (x == 0.0)
{
/* d = -one/(x-x) */
feraiseexcept (FE_DIVBYZERO);
return __kernel_standard (x, x, 10);
}
else if (_LIB_VERSION != _POSIX_)
/* y1(x>X_TLOSS) */
return __kernel_standard (x, x, 37);

3
math/w_j1f.c
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@ -49,8 +49,11 @@ y1f (float x)
return __kernel_standard_f (x, x, 111);
}
else if (x == 0.0f)
{
/* d = -one/(x-x) */
feraiseexcept (FE_DIVBYZERO);
return __kernel_standard_f (x, x, 110);
}
else if (_LIB_VERSION != _POSIX_)
/* y1(x>X_TLOSS) */
return __kernel_standard_f (x, x, 137);

3
math/w_j1l.c
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@ -49,8 +49,11 @@ __y1l (long double x)
return __kernel_standard_l (x, x, 211);
}
else if (x == 0.0L)
{
/* d = -one/(x-x) */
feraiseexcept (FE_DIVBYZERO);
return __kernel_standard_l (x, x, 210);
}
else if (_LIB_VERSION != _POSIX_)
/* y1(x>X_TLOSS) */
return __kernel_standard_l (x, x, 237);

3
math/w_jn.c
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@ -51,8 +51,11 @@ yn (int n, double x)
return __kernel_standard (n, x, 13);
}
else if (x == 0.0)
{
/* d = -one/(x-x) */
feraiseexcept (FE_DIVBYZERO);
return __kernel_standard (n, x, 12);
}
else if (_LIB_VERSION != _POSIX_)
/* yn(n,x>X_TLOSS) */
return __kernel_standard (n, x, 39);

3
math/w_jnf.c
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@ -49,8 +49,11 @@ ynf (int n, float x)
return __kernel_standard_f (n, x, 113);
}
else if (x == 0.0)
{
/* d = -one/(x-x) */
feraiseexcept (FE_DIVBYZERO);
return __kernel_standard_f (n, x, 112);
}
else if (_LIB_VERSION != _POSIX_)
/* yn(n,x>X_TLOSS) */
return __kernel_standard_f (n, x, 139);

3
sysdeps/i386/fpu/libm-test-ulps
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@ -7563,6 +7563,9 @@ float: 2
ifloat: 2
# yn
Test "yn (-10, 1.0)":
float: 2
ifloat: 2
Test "yn (0, 0.125)":
ildouble: 1
ldouble: 1

16
sysdeps/ieee754/k_standard.c
View File

@ -248,7 +248,7 @@ __kernel_standard(double x, double y, int type)
else
exc.retval = -HUGE_VAL;
if (_LIB_VERSION == _POSIX_)
__set_errno (EDOM);
__set_errno (ERANGE);
else if (!matherr(&exc)) {
if (_LIB_VERSION == _SVID_) {
(void) WRITE2("y0: DOMAIN error\n", 17);
@ -265,7 +265,7 @@ __kernel_standard(double x, double y, int type)
if (_LIB_VERSION == _SVID_)
exc.retval = -HUGE;
else
exc.retval = -HUGE_VAL;
exc.retval = NAN;
if (_LIB_VERSION == _POSIX_)
__set_errno (EDOM);
else if (!matherr(&exc)) {
@ -286,7 +286,7 @@ __kernel_standard(double x, double y, int type)
else
exc.retval = -HUGE_VAL;
if (_LIB_VERSION == _POSIX_)
__set_errno (EDOM);
__set_errno (ERANGE);
else if (!matherr(&exc)) {
if (_LIB_VERSION == _SVID_) {
(void) WRITE2("y1: DOMAIN error\n", 17);
@ -303,7 +303,7 @@ __kernel_standard(double x, double y, int type)
if (_LIB_VERSION == _SVID_)
exc.retval = -HUGE;
else
exc.retval = -HUGE_VAL;
exc.retval = NAN;
if (_LIB_VERSION == _POSIX_)
__set_errno (EDOM);
else if (!matherr(&exc)) {
@ -322,9 +322,11 @@ __kernel_standard(double x, double y, int type)
if (_LIB_VERSION == _SVID_)
exc.retval = -HUGE;
else
exc.retval = -HUGE_VAL;
exc.retval = ((x < 0 && ((int) x & 1) != 0)
? HUGE_VAL
: -HUGE_VAL);
if (_LIB_VERSION == _POSIX_)
__set_errno (EDOM);
__set_errno (ERANGE);
else if (!matherr(&exc)) {
if (_LIB_VERSION == _SVID_) {
(void) WRITE2("yn: DOMAIN error\n", 17);
@ -341,7 +343,7 @@ __kernel_standard(double x, double y, int type)
if (_LIB_VERSION == _SVID_)
exc.retval = -HUGE;
else
exc.retval = -HUGE_VAL;
exc.retval = NAN;
if (_LIB_VERSION == _POSIX_)
__set_errno (EDOM);
else if (!matherr(&exc)) {

2
sysdeps/ieee754/ldbl-128/e_jnl.c
View File

@ -316,7 +316,7 @@ __ieee754_ynl (int n, long double x)
if (x <= 0.0L)
{
if (x == 0.0L)
return -HUGE_VALL + x;
return ((n < 0 && (n & 1) != 0) ? 1.0L : -1.0L) / 0.0L;
if (se & 0x80000000)
return zero / (zero * x);
}

2
sysdeps/ieee754/ldbl-128ibm/e_jnl.c
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@ -316,7 +316,7 @@ __ieee754_ynl (int n, long double x)
if (x <= 0.0L)
{
if (x == 0.0L)
return -HUGE_VALL + x;
return ((n < 0 && (n & 1) != 0) ? 1.0L : -1.0L) / 0.0L;
if (se & 0x80000000)
return zero / (zero * x);
}

3
sysdeps/ieee754/ldbl-96/e_jnl.c
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@ -302,7 +302,8 @@ __ieee754_ynl (int n, long double x)
if (__builtin_expect ((ix == 0x7fff) && ((i0 & 0x7fffffff) != 0), 0))
return x + x;
if (__builtin_expect ((ix | i0 | i1) == 0, 0))
return -HUGE_VALL + x; /* -inf and overflow exception. */
/* -inf or inf and divide-by-zero exception. */
return ((n < 0 && (n & 1) != 0) ? 1.0L : -1.0L) / 0.0L;
if (__builtin_expect (se & 0x8000, 0))
return zero / (zero * x);
sign = 1;

5
sysdeps/x86_64/fpu/libm-test-ulps
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@ -8615,6 +8615,11 @@ idouble: 1
ifloat: 2
# yn
Test "yn (-10, 1.0)":
double: 1
float: 2
idouble: 1
ifloat: 2
Test "yn (0, 0.125)":
ildouble: 1
ldouble: 1