Marcin MirosÅaw <marcin@xxxxxxxx> writes: > I'm not sure this bug should be posted here, in gcc/bugzilla or should i > write to libtommath's upstream. When a program crashes, it is normally a bug in the program, not a bug in the compiler. You should report this to libtommath. Only report a bug against gcc if you are convinced that the compiler is mishandling valid code. Ian