[Bug c++/47749] Wrong function return value

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47749

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-15 
11:18:45 UTC ---
does adding

extern "C" void abort (void);
int main() { if (!fn_bad (true)) abort(); return 0; }

cause the testcase to abort at runtime?  Which flags are you using for
compiling?