Christian Heimes <li...@cheimes.de> added the comment:
ICC 2021 has full support for stdatomic.h and compiles mimalloc just fine: $ CC="icc" ./configure -C --with-pydebug $ make $ ./python Python 3.11.0a5+ (main, Feb 9 2022, 15:57:40) [GCC Intel(R) C++ gcc 7.5 mode] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import sys >>> sys._malloc_info sys._malloc_info(allocator='mimalloc_debug', with_pymalloc=True, with_mimalloc=True, mimalloc_secure=4, mimalloc_debug=2) AIX xlc is still a problem. It does not support C11 stdatomic.h. But it comes with older GCC atomic memory access __sync function family, https://www.ibm.com/docs/en/xl-c-and-cpp-aix/13.1.3?topic=cbif-gcc-atomic-memory-access-built-in-functions-extension . It might be possible to re-implement mimalloc's atomics with __sync functions (e.g. https://gist.github.com/nhatminhle/5181506). The implementation would be less efficient, though. The __sync functions don't have memory order, atomic_load_explicit(v) becomes __sync_fetch_and_add(v, 0), and atomic_store_explicit() requires two full memory barriers. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46657> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
