diff options
| author | Joseph Myers <joseph@codesourcery.com> | 2012-03-21 12:14:57 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2012-03-21 12:16:00 +0000 |
| commit | 2460d3aa21f04cdf28497683bd3e29183189f779 (patch) | |
| tree | d01d4f4002b56099e0f8959e39aa5eee7dc1db10 /ChangeLog | |
| parent | eb96ffb07d0b1b23ecfaf9520d6757c7dbea0bd1 (diff) | |
| download | glibc-2460d3aa21f04cdf28497683bd3e29183189f779.zip glibc-2460d3aa21f04cdf28497683bd3e29183189f779.tar.gz glibc-2460d3aa21f04cdf28497683bd3e29183189f779.tar.bz2 | |
Fix pow of zero and infinity to large powers.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 21 |
1 files changed, 21 insertions, 0 deletions
@@ -1,3 +1,24 @@ +2012-03-20 Joseph Myers <joseph@codesourcery.com> + + [BZ #3866] + * sysdeps/i386/fpu/e_pow.S (__ieee754_pow): Test for y outside the + range of signed 64-bit integers before using fistpll. Remove + checks for whether integers fit in mantissa bits. + * sysdeps/i386/fpu/e_powf.S (__ieee754_powf): Test for y outside + the range of signed 32-bit integers before using fistpl. Remove + checks for whether integers fit in mantissa bits. + * sysdeps/i386/fpu/e_powl.S (p64): New object. + (__ieee754_powl): Test for y outside the range of signed 64-bit + integers before using fistpll. Reduce 64-bit values to 63-bit + ones as needed. + * sysdeps/ieee754/dbl-64/e_pow.c (__ieee754_pow): Ensure + divide-by-zero is raised for zero to large negative powers. + * sysdeps/x86_64/fpu/e_powl.S (p64): New object. + (__ieee754_powl): Test for y outside the range of signed 64-bit + integers before using fistpll. Reduce 64-bit values to 63-bit + ones as needed. + * math/libm-test.inc (pow_test): Add more tests. + 2012-03-20 H.J. Lu <hongjiu.lu@intel.com> * debug/backtracesymsfd.c: Include <_itoa.h> instead of |