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[Bug tree-optimization/23835] case where gcc 4.1.0 -O3 compile takes two times longer than gcc 3.4.3
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 Sep 2005 23:13:17 -0000
- Subject: [Bug tree-optimization/23835] case where gcc 4.1.0 -O3 compile takes two times longer than gcc 3.4.3
- References: <20050912163013.23835.jaffe@broad.mit.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-13 23:13 -------
We have at least 50000 SSA_NAMEs, that is just huge. We have only V_MAY_DEFs for .GLOBAL_VAR and
a TMT.
This happens on all targets and not just ia64.
--
What |Removed |Added
----------------------------------------------------------------------------
GCC build triplet|ia64-unknown-linux-gnu |
GCC host triplet|ia64-unknown-linux-gnu |
GCC target triplet|ia64-unknown-linux-gnu |
Summary|case where gcc 4.1.0 -O3 |case where gcc 4.1.0 -O3
|compile takes two times |compile takes two times
|longer than gcc 3.4.3, on |longer than gcc 3.4.3
|ia64 |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23835