------- Comment #10 from rguenth at gcc dot gnu dot org 2008-01-06 10:38 ------- This one:
http://gcc.gnu.org/ml/gcc-patches/2006-02/msg01762.html basically it mentiones async I/O as a reason to not do it, but instead the callee can copy the I/O structure in that case instead (it probably needs to anyway, as currently those structures live on the stack, so with async I/O you'd need otherwise to guarantee that the I/O finished before the current frame is left). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34683