http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56807
--- Comment #23 from Anton Mitrofanov <BugMaster at narod dot ru> --- >Is it possible to write a test with eax_live == true and r10_live == true? I am really dunno. As I said I can't write sample which will trigger it (that is why it is only comment and not new bug report). But this code path exist so probably someone suggested that it can be triggered (otherwise what for to write it instead of some assert)? >That piece of code is only trigged by -mstack-arg-probe, which is specific to Windows Can it really be used only for Windows target? I am not very good with gcc on other targets so don't know if it have any effect on linux or anything other.