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Fix remainder exceptions and directed-rounding results (bugs 15480, 15485).

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This commit is contained in:
Joseph Myers
2013-05-17 19:04:08 +00:00
parent a00bdcf0e0
commit bb38759d6d
4 changed files with 181 additions and 8 deletions
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169
math/libm-test.inc
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@@ -12276,13 +12276,12 @@ static const struct test_ff_f_data remainder_test_data[] =
TEST_ff_f (remainder, 7.0, plus_infty, 7.0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 7.0, minus_infty, 7.0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
/* Bug 15480: spurious "inexact" exception may occur. */
TEST_ff_f (remainder, 1.625, 1.0, -0.375),
TEST_ff_f (remainder, -1.625, 1.0, 0.375),
TEST_ff_f (remainder, 1.625, -1.0, -0.375),
TEST_ff_f (remainder, -1.625, -1.0, 0.375),
TEST_ff_f (remainder, 5.0, 2.0, 1.0),
TEST_ff_f (remainder, 3.0, 2.0, -1.0),
TEST_ff_f (remainder, 1.625, 1.0, -0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, -1.625, 1.0, 0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 1.625, -1.0, -0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, -1.625, -1.0, 0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 5.0, 2.0, 1.0, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 3.0, 2.0, -1.0, NO_INEXACT_EXCEPTION),
END_DATA (remainder)
};
@@ -12294,6 +12293,158 @@ remainder_test (void)
END (remainder);
}
static const struct test_ff_f_data remainder_tonearest_test_data[] =
{
START_DATA (remainder_tonearest),
TEST_ff_f (remainder, 1, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, 1, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, 1, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, 2, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, 1, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, 2, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 0, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, qnan_value, 0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 7.0, plus_infty, 7.0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 7.0, minus_infty, 7.0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 1.625, 1.0, -0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, -1.625, 1.0, 0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 1.625, -1.0, -0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, -1.625, -1.0, 0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 5.0, 2.0, 1.0, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 3.0, 2.0, -1.0, NO_INEXACT_EXCEPTION),
END_DATA (remainder_tonearest)
};
static void
remainder_test_tonearest (void)
{
START (remainder_tonearest);
RUN_TEST_LOOP_ff_f (remainder, remainder_tonearest_test_data, FE_TONEAREST);
END (remainder_tonearest);
}
static const struct test_ff_f_data remainder_towardzero_test_data[] =
{
START_DATA (remainder_towardzero),
TEST_ff_f (remainder, 1, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, 1, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, 1, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, 2, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, 1, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, 2, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 0, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, qnan_value, 0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 7.0, plus_infty, 7.0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 7.0, minus_infty, 7.0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 1.625, 1.0, -0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, -1.625, 1.0, 0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 1.625, -1.0, -0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, -1.625, -1.0, 0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 5.0, 2.0, 1.0, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 3.0, 2.0, -1.0, NO_INEXACT_EXCEPTION),
END_DATA (remainder_towardzero)
};
static void
remainder_test_towardzero (void)
{
START (remainder_towardzero);
RUN_TEST_LOOP_ff_f (remainder, remainder_towardzero_test_data, FE_TOWARDZERO);
END (remainder_towardzero);
}
static const struct test_ff_f_data remainder_downward_test_data[] =
{
START_DATA (remainder_downward),
TEST_ff_f (remainder, 1, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, 1, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, 1, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, 2, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, 1, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, 2, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 0, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, qnan_value, 0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 7.0, plus_infty, 7.0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 7.0, minus_infty, 7.0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 1.625, 1.0, -0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, -1.625, 1.0, 0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 1.625, -1.0, -0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, -1.625, -1.0, 0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 5.0, 2.0, 1.0, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 3.0, 2.0, -1.0, NO_INEXACT_EXCEPTION),
END_DATA (remainder_downward)
};
static void
remainder_test_downward (void)
{
START (remainder_downward);
RUN_TEST_LOOP_ff_f (remainder, remainder_downward_test_data, FE_DOWNWARD);
END (remainder_downward);
}
static const struct test_ff_f_data remainder_upward_test_data[] =
{
START_DATA (remainder_upward),
TEST_ff_f (remainder, 1, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, 1, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, 1, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, plus_infty, 2, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, minus_zero, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, 0, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, 1, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, minus_infty, 2, qnan_value, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
TEST_ff_f (remainder, qnan_value, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 0, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, qnan_value, 0, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 7.0, plus_infty, 7.0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 7.0, minus_infty, 7.0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
TEST_ff_f (remainder, 1.625, 1.0, -0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, -1.625, 1.0, 0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 1.625, -1.0, -0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, -1.625, -1.0, 0.375, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 5.0, 2.0, 1.0, NO_INEXACT_EXCEPTION),
TEST_ff_f (remainder, 3.0, 2.0, -1.0, NO_INEXACT_EXCEPTION),
END_DATA (remainder_upward)
};
static void
remainder_test_upward (void)
{
START (remainder_upward);
RUN_TEST_LOOP_ff_f (remainder, remainder_upward_test_data, FE_UPWARD);
END (remainder_upward);
}
static const struct test_ffI_f1_data remquo_test_data[] =
{
START_DATA (remquo),
@@ -14766,6 +14917,10 @@ main (int argc, char **argv)
/* Remainder functions: */
fmod_test ();
remainder_test ();
remainder_test_tonearest ();
remainder_test_towardzero ();
remainder_test_downward ();
remainder_test_upward ();
remquo_test ();
/* Manipulation functions: */