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Fix spurious jnf underflows (bug 14155).

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This commit is contained in:
Joseph Myers
2013-09-02 14:51:24 +00:00
parent 8220f4f008
commit b7835e3223
6 changed files with 68 additions and 10 deletions
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19
math/libm-test.inc
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@@ -9913,8 +9913,14 @@ static const struct test_if_f_data jn_test_data[] =
TEST_if_f (jn, 8, 2.4048255576957729L, 0.92165786705344923232879022467054148E-4L),
TEST_if_f (jn, 9, 2.4048255576957729L, 0.12517270977961513005428966643852564E-4L),
/* Bug 14155: spurious exception may occur. */
TEST_if_f (jn, 2, 0x1.ffff62p+99L, -4.43860668048170034334926693188979974489e-16L, UNDERFLOW_EXCEPTION_OK),
TEST_if_f (jn, 2, 0x1.ffff62p+99L, -4.43860668048170034334926693188979974489e-16L),
TEST_if_f (jn, 2, 0x1p127L, -6.0784021821505059176832624052765568656702e-20L),
#ifndef TEST_FLOAT
TEST_if_f (jn, 2, 0x1p1023L, 1.5665258060609012834424478437196679802783e-155L),
#endif
#if defined TEST_LDOUBLE && LDBL_MAX_EXP >= 16384
TEST_if_f (jn, 2, 0x1p16383L, -9.5859502826270374691362975419147645151233e-2467L),
#endif
};
static void
@@ -14531,6 +14537,15 @@ static const struct test_if_f_data yn_test_data[] =
/* 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),
TEST_if_f (yn, 2, 0x1.ffff62p+99L, -5.5244413477397111790415387179517953221757e-16L),
TEST_if_f (yn, 2, 0x1p127L, 6.8569250690166637098111268958532649249771e-21L),
#ifndef TEST_FLOAT
TEST_if_f (yn, 2, 0x1p1023L, -8.2687542933709649327986678723012001545638e-155L),
#endif
#if defined TEST_LDOUBLE && LDBL_MAX_EXP >= 16384
TEST_if_f (yn, 2, 0x1p16383L, 3.8895531955766020648617743624167352352217e-2467L),
#endif
};
static void