This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug lto/45810] 40% slowdown when using LTO for a single-file program
- From: "hubicka at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 23 Jan 2011 17:58:17 +0000
- Subject: [Bug lto/45810] 40% slowdown when using LTO for a single-file program
- Auto-submitted: auto-generated
- References: <bug-45810-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45810
--- Comment #16 from Jan Hubicka <hubicka at gcc dot gnu.org> 2011-01-23 17:57:58 UTC ---
Also w/o inlining hookes_law but with inlining perida (by using
large-function-growth parameter only and the patch abov), I get 30% speedup,
not 50% as with inlining both, but it seems that we miss some optimization that
is independent on inlining w/o early FRE.