W dniu 2011-06-16 18:30, Ian Lance Taylor pisze: > 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. Hi, thanks for the reply! I have to admit i'm still don't sure. Problem described earlier appears only with optimalization "-O2 -fgraphite-identity", with e.g. "-O1 -fgraphite-identity" or "-O0 -fgraphite-identity" i don't have such problem. So i've suspected problem with gcc. Thanks, Marcin