https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108696
--- Comment #3 from rguenther at suse dot de <rguenther at suse dot de> --- > Am 08.02.2023 um 18:50 schrieb amacleod at redhat dot com > <gcc-bugzi...@gcc.gnu.org>: > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108696 > > --- Comment #2 from Andrew Macleod <amacleod at redhat dot com> --- > Created attachment 54437 > --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54437&action=edit > possible patch > > This patch should successfully short circuit unnecessary checks. untested in > compiler.i > > Where did you get a 17% time in DOM? When using -O1 as recommended for this kind of testcase. > when I run compiler.i I get > dominator optimization : 38.28 ( 2%) > where most of the time is in > machine dep reorg :1447.64 ( 60%) Ah. Another thing to investigate… > > I'll check this patch for correctness and to see if it generally makes any > time > improvements that are measurable elsewhere. > > -- > You are receiving this mail because: > You reported the bug.
