https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61943
--- Comment #2 from Vittorio Zecca <zeccav at gmail dot com> --- gcc was compiled with -fsanitize=undefined option. Call it gcc-sanitized. Then I did gcc-sanitized -S gccerr13.c -O where gccerr13.c is the sample C code I sent bugzilla The option -O is necessary to reproduce the bug. Error message from the sanitizer ../../gcc-4.9.1/gcc/tree-ssa-loop-ivopts.c:4148:24: runtime error: signed integer overflow: 4 * 4611686018427387903 cannot be represented in type 'long int'
