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[Bug lto/49700] LTO compile time hog
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 11 Jul 2011 09:21:00 +0000
- Subject: [Bug lto/49700] LTO compile time hog
- Auto-submitted: auto-generated
- References: <bug-49700-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49700
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-07-11 09:20:37 UTC ---
The
phase parsing :5086.93 (100%) usr 9.45 (100%) sys5213.35 (100%)
wall 1072513 kB (100%) ggc
line looks completely odd ;) It would be interesting to know what broke the
LTO I/O type/merging accounting.
Honza? The above is from LTRANS phase, so maybe there's some timevar
pushing missing? It looks like materialize_cgraph is suspicious.
No, the ltrans object file is of no use.
Joost, can you point us to a source tarball? Does the issue reproduce
with simpler flags (plain -O2 or plain -O3? Esp. w/o -march=native?)