Message 306157 - Python tracker

Same bug, again,  AMD64 Debian PGO 3.x, so I reopen the issue:

http://buildbot.python.org/all/#/builders/47/builds/159

Python/compile.c: In function ‘compiler_sync_comprehension_generator’:
Python/compile.c:5457:1: internal compiler error: in create_edge, at cgraph.c:850
 }
 ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-6/README.Bugs> for instructions.