STINNER Victor <vstin...@python.org> added the comment:
> For this particular case, I'd be fine with adding a special case for `x == y` > in the code (suitably commented to explain why the special case is there, and > under what conditions it can be removed). I proposed PR 18094. Because of your parenthesis, I chose to use "#if defined(_AIX)" with an an explicit comment on AIX version. For example, we may drop this workaround once we would like to drop support for AIX 7.1. > Actually, the cmath.exp failure looks a little odd to my eyes: it would be a > bit surprising to have cmath.exp fail if all of test_math passed. I suspect a > dodgy compiler optimisation. But that's another issue. Michael: would you mind to open a separated issue for "FAIL: test_specific_values (test.test_cmath.CMathTests)"? Is it on a buildbot? Please try to get the machine code of cmath_exp_impl() function. Example: objdump -d build/lib.linux-x86_64-3.9-pydebug/cmath.cpython-39d-x86_64-linux-gnu.so or try gdb: --- $ gdb ./python GNU gdb (GDB) Fedora 8.3.50.20190824-26.fc31 (gdb) run >>> import cmath <press CTRL+C> Program received signal SIGINT, Interrupt. (gdb) set pagination off (gdb) disassemble cmath_exp_impl --- ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue39396> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
