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| author | Joseph Myers <joseph@codesourcery.com> | 2014-03-26 18:59:08 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2014-03-26 18:59:08 +0000 |
| commit | 9be36fb8cb5bcdab5bbbc7a36388dc9a3d1cc397 (patch) | |
| tree | 2cc35309dc7cb65fbe9f8fe46762edf8a50a7f02 /math/w_pow.c | |
| parent | 60a2f3c166cebf56048d00cee47b9ed1969844d6 (diff) | |
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Make x86_64 fegetenv preserve exception mask (bug 16198).
Bug 16198 is x86_64 fegetenv wrongly masking exceptions for which
traps are enabled, because that's a side-effect of the fnstenv
instruction. This patch fixes it to use fldenv immediately after
fnstenv, like the i386 version. Tested x86_64 and x86.
[BZ #16198]
* sysdeps/x86_64/fpu/fegetenv.c (fegetenv): Use fldenv after
fnstenv.
* math/test-fenv-preserve.c: New file.
* math/Makefile (tests): Add test-fenv-preserve.
Diffstat (limited to 'math/w_pow.c')
0 files changed, 0 insertions, 0 deletions