------- Comment #16 from zadeck at naturalbridge dot com 2007-10-24 12:14 ------- Subject: Re: inf loop/long compile time, time spent in var-tracking.c
rguenth at gcc dot gnu dot org wrote: > ------- Comment #15 from rguenth at gcc dot gnu dot org 2007-10-24 12:01 > ------- > Btw, I can no longer reproduce the problem. var-tracking is not fast, but > even a cc1 compiled with checking and -O0 does not take multiple hours to > compile this (but just a minute): > > variable tracking : 11.34 (23%) usr 0.20 (12%) sys 11.54 (23%) wall > 46131 kB (25%) ggc > TOTAL : 48.36 1.66 50.07 > 183405 kB > > > I think that given the most likely cause of the problem, the problem is just hiding. My guess is that the problem is that there is an oddball case where the dataflow equations do not converge and we will see this again. But it is clearly very rare. kenny -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31412
