https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116088
--- Comment #9 from Petr Sumbera <sumbera at volny dot cz> --- Thread 2 received signal SIGILL, Illegal instruction. [Switching to Thread 1 (LWP 1)] 0x00007fd0fef67f3a in isl_hash_table_init () from /usr/lib/64/libisl.so.23 (gdb) x/i $pc => 0x7fd0fef67f3a <isl_hash_table_init+58>: blsr %eax,%eax
