------- Comment #6 from rguenther at suse dot de 2008-01-08 12:21 ------- Subject: Re: Inlining heuristics issue
On Tue, 8 Jan 2008, hubicka at ucw dot cz wrote: > ------- Comment #5 from hubicka at ucw dot cz 2008-01-08 12:15 ------- > Subject: Re: Inlining heuristics issue > > > I think we want to account PHI nodes as real copies instead (d->count += > > PHI_NUM_ARGS (...)) -- if they involve real operands (not VOPs). > > We ignore cost of MODIFY_EXPR in assumption that it will get quite > likely optimized out (that is important for simple containers). So > ignoring PHI nodes is consistent in this manner, but on the other hand > PHIs are less often in containers and more likely to stay after > inlining. I will add code for that. Well, while register copies are likely to be optimized out, by definition a PHI node copy cannot be optimized out (unless, of course, clever optimization applies). Richard. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34708
