Richard Guenther <richard.guent...@gmail.com> writes: > On Fri, Sep 10, 2010 at 4:06 PM, Paulo J. Matos <pocma...@gmail.com> wrote: >> >> Or I could move the pass to be executed before the CFG is created. Would >> there be any issues with this? > > Yes. Profile information is not available at that point. >
Thanks. Makes sense if I intend to use the profile information in the future, which I currently don't. Back to fixing it! :) >> Regarding passes execution order. It seems on one hand that passes >> execution order would be determined by GCC during runtime depending on >> the properties required and provided by each pass. But on the other >> passes.c seem to schedule the passes explicitly through NEXT_PASS(). >> Could you just briefly tell me how passes are actually scheduled? > > They are scheduled statically specified by the schedule initialized > in passes.c. > I see, and then the properties provided and required are checked for. If they don't agree with the current position of the pass in the scheduling table, the thing breaks. -- PMatos
