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[Bug tree-optimization/23835] case where gcc 4.1.0 -O3 compile takes 4 times longer than gcc 3.4.3, on ia64
- 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 22:18:52 -0000
- Subject: [Bug tree-optimization/23835] case where gcc 4.1.0 -O3 compile takes 4 times longer than gcc 3.4.3, on ia64
- 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 22:18 -------
tree alias analysis : 5.56 (17%) usr 0.07 ( 8%) sys 5.66 (17%) wall 13812 kB ( 3%) ggc
tree SSA incremental : 3.15 (10%) usr 0.01 ( 2%) sys 3.18 (10%) wall 8152 kB ( 2%) ggc
hmm, we most likely just have too many VOPS but I don't know for sure yet.
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What |Removed |Added
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Component|middle-end |tree-optimization
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23835