https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68010
--- Comment #9 from Stephan Rudlof <sr at evolgo dot de> --- There is another - short - code snippet triggering this bug; see attachment src.c . Session: +++ sr@free:/tmp$ gcc --version gcc (Debian 4.9.2-10) 4.9.2 Copyright (C) 2014 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. sr@free:/tmp$ gcc -c src.c sr@free:/tmp$ gcc -O -c src.c src.c: In function ‘String_new’: src.c:29:1: internal compiler error: in tree_to_shwi, at tree.h:3661 } ^ Please submit a full bug report, with preprocessed source if appropriate. See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions. Preprocessed source stored into /tmp/ccAnah8K.out file, please attach this to your bugreport. sr@free:/tmp$ +++
