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[Bug tree-optimization/26854] Inordinate compile times on large routines
- From: "lucier at math dot purdue dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 11 Dec 2006 06:27:49 -0000
- Subject: [Bug tree-optimization/26854] Inordinate compile times on large routines
- References: <bug-26854-271@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #23 from lucier at math dot purdue dot edu 2006-12-11 06:27 -------
Subject: Re: Inordinate compile times on large routines
After Andrew MacLeod's changes here
http://gcc.gnu.org/ml/gcc-patches/2006-12/msg00691.html
I see
tree SSA to normal : 5.23 ( 1%) usr 0.06 ( 0%) sys 5.30
( 1%) wall 52594 kB ( 7%) ggc
instead of
tree SSA to normal : 30.22 ( 7%) usr 0.07 ( 1%) sys 30.74
( 6%) wall 54480 kB ( 7%) ggc
Very nice.
Other passes with noticeable run times remaining are
tree alias analysis : 125.17 (28%) usr 0.52 ( 4%) sys 126.90
(27%) wall 18481 kB ( 3%) ggc
tree FRE : 207.84 (46%) usr 0.19 ( 1%) sys 208.56
(45%) wall 23470 kB ( 3%) ggc
Brad
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26854