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| author | Ulrich Drepper <drepper@redhat.com> | 2004-07-20 07:06:48 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-07-20 07:06:48 +0000 |
| commit | 164f863efd3c4fa9183ab85f2af82583c88ae90d (patch) | |
| tree | 967a8dd5467587fc409e9f5f41b203368ebd41ae /math | |
| parent | c747e725e310d16c40aa815ed9e3e9f2805351e7 (diff) | |
| download | glibc-164f863efd3c4fa9183ab85f2af82583c88ae90d.zip glibc-164f863efd3c4fa9183ab85f2af82583c88ae90d.tar.gz glibc-164f863efd3c4fa9183ab85f2af82583c88ae90d.tar.bz2 | |
[BZ #258]
Update.
2004-07-19 Jakub Jelinek <jakub@redhat.com>
[BZ #258]
* math/libm-test.inc (max_value, min_value): New variables.
(initialize): Initialize them.
(pow_test): Add a couple of new tests.
* sysdeps/i386/fpu/e_powf.S (__ieee754_powf): Don't generate invalid
exception if |y| >= 1U<<31.
* sysdeps/i386/fpu/e_pow.S (__ieee754_pow): Don't generate invalid
exception if |y| >= 1L<<63.
* sysdeps/i386/fpu/e_powl.S (__ieee754_powl): Likewise.
If y*log2(x) overflows to +-inf, return still +inf/+0 instead of NaN.
* sysdeps/x86_64/fpu/e_powl.S (__ieee754_powl): Likewise.
Diffstat (limited to 'math')
| -rw-r--r-- | math/libm-test.inc | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc index bad3948..729fce9 100644 --- a/math/libm-test.inc +++ b/math/libm-test.inc @@ -169,7 +169,7 @@ static int output_points; /* Should the single function results printed? */ static int ignore_max_ulp; /* Should we ignore max_ulp? */ static FLOAT minus_zero, plus_zero; -static FLOAT plus_infty, minus_infty, nan_value; +static FLOAT plus_infty, minus_infty, nan_value, max_value, min_value; static FLOAT max_error, real_max_error, imag_max_error; @@ -3593,6 +3593,28 @@ pow_test (void) TEST_ff_f (pow, -1, plus_infty, 1); TEST_ff_f (pow, 1, minus_infty, 1); TEST_ff_f (pow, -1, minus_infty, 1); + TEST_ff_f (pow, 1, 1, 1); + TEST_ff_f (pow, 1, -1, 1); + TEST_ff_f (pow, 1, 1.25, 1); + TEST_ff_f (pow, 1, -1.25, 1); + TEST_ff_f (pow, 1, 0x1p62L, 1); + TEST_ff_f (pow, 1, 0x1p63L, 1); + TEST_ff_f (pow, 1, 0x1p64L, 1); + TEST_ff_f (pow, 1, 0x1p72L, 1); + + /* pow (x, +-0) == 1. */ + TEST_ff_f (pow, plus_infty, 0, 1); + TEST_ff_f (pow, plus_infty, minus_zero, 1); + TEST_ff_f (pow, minus_infty, 0, 1); + TEST_ff_f (pow, minus_infty, minus_zero, 1); + TEST_ff_f (pow, 32.75L, 0, 1); + TEST_ff_f (pow, 32.75L, minus_zero, 1); + TEST_ff_f (pow, -32.75L, 0, 1); + TEST_ff_f (pow, -32.75L, minus_zero, 1); + TEST_ff_f (pow, 0x1p72L, 0, 1); + TEST_ff_f (pow, 0x1p72L, minus_zero, 1); + TEST_ff_f (pow, 0x1p-72L, 0, 1); + TEST_ff_f (pow, 0x1p-72L, minus_zero, 1); TEST_ff_f (pow, -0.1L, 1.1L, nan_value, INVALID_EXCEPTION); TEST_ff_f (pow, -0.1L, -1.1L, nan_value, INVALID_EXCEPTION); @@ -3609,6 +3631,10 @@ pow_test (void) TEST_ff_f (pow, minus_zero, -2, plus_infty, DIVIDE_BY_ZERO_EXCEPTION); TEST_ff_f (pow, minus_zero, -11.1L, plus_infty, DIVIDE_BY_ZERO_EXCEPTION); + TEST_ff_f (pow, 0x1p72L, 0x1p72L, plus_infty); + TEST_ff_f (pow, 10, -0x1p72L, 0); + TEST_ff_f (pow, max_value, max_value, plus_infty); + TEST_ff_f (pow, 10, -max_value, 0); TEST_ff_f (pow, 0, 1, 0); TEST_ff_f (pow, 0, 11, 0); @@ -3623,6 +3649,8 @@ pow_test (void) TEST_ff_f (pow, minus_zero, 2, 0); TEST_ff_f (pow, minus_zero, 11.1L, 0); + TEST_ff_f (pow, 0, plus_infty, 0); + TEST_ff_f (pow, minus_zero, plus_infty, 0); #ifndef TEST_INLINE /* pow (x, +inf) == +inf for |x| > 1. */ @@ -3667,6 +3695,11 @@ pow_test (void) /* pow (-0, y) == +0 for y > 0 and not an odd integer. */ TEST_ff_f (pow, minus_zero, 4, 0.0); + TEST_ff_f (pow, 16, 0.25L, 2); + TEST_ff_f (pow, 0x1p64L, 0.125L, 256); + TEST_ff_f (pow, 2, 4, 16); + TEST_ff_f (pow, 256, 8, 0x1p64L); + TEST_ff_f (pow, 0.75L, 1.25L, 0.697953644326574699205914060237425566L); #if defined TEST_DOUBLE || defined TEST_LDOUBLE @@ -4312,12 +4345,18 @@ initialize (void) HUGE_VALL, HUGE_VAL, HUGE_VALF); minus_infty = CHOOSE (-HUGE_VALL, -HUGE_VAL, -HUGE_VALF, -HUGE_VALL, -HUGE_VAL, -HUGE_VALF); + max_value = CHOOSE (LDBL_MAX, DBL_MAX, FLT_MAX, + LDBL_MAX, DBL_MAX, FLT_MAX); + min_value = CHOOSE (LDBL_MIN, DBL_MIN, FLT_MIN, + LDBL_MIN, DBL_MIN, FLT_MIN); (void) &plus_zero; (void) &nan_value; (void) &minus_zero; (void) &plus_infty; (void) &minus_infty; + (void) &max_value; + (void) &min_value; /* Clear all exceptions. From now on we must not get random exceptions. */ feclearexcept (FE_ALL_EXCEPT); |