New submission from William Scullin <wscul...@gmail.com>: When building Python 3.6.X and later with icc (18.0.0.128 or 18.0.1.163), there's an error building the _sha3 module with any optimization level other than -O0:
building '_sha3' extension icc -pthread -fPIC -Wsign-compare -Wunreachable-code -DNDEBUG -g -O3 -Wall -Wstrict-prototypes -std=c99 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -fp-model strict -I./Include -I. -I/usr/local/include -I/derp/Python-3.6.4/Include -I/derp/Python-3.6.4 -c /derp/Python-3.6.4/Modules/_sha3/ sha3module.c -o build/temp.linux-x86_64-3.6/derp/Python-3.6.4/Modules/_sha3/sha3module.o ": internal error: ** The compiler has encountered an unexpected problem. ** Segmentation violation signal raised. ** Access violation or stack overflow. Please contact Intel Support for assistance. compilation aborted for /derp/Python-3.6.4/Modules/_sha3/sha3module.c (code 4) ... [ jlselogin2: Python-3.6.4 ]$ if I drop to -O0, compilation works every time. I haven't found disabling any particular set of optimizations to be useful in obtaining a successful build. ... [ jlselogin2: Python-3.6.4 ]$ dropping to -O0, compilation works every time. I haven't found disabling any particular set of optimizations to be useful in obtaining a successful build with icc. Intel has been notified and a bug filed as this is really a compiler bug. On the Python side, it does not appear possible to use Modules/Setup to drop the optimization level for just _sha3 and I'm hunting for a workaround. ---------- components: Installation messages: 314619 nosy: wscullin priority: normal severity: normal status: open title: error building the _sha3 module with Intel 2018 compilers type: compile error versions: Python 3.6 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue33174> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
