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[Bug tree-optimization/16913] [4.0 Regression] restrict does not make a difference
- From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Feb 2005 10:51:04 -0000
- Subject: [Bug tree-optimization/16913] [4.0 Regression] restrict does not make a difference
- References: <20040807114151.16913.martin@mpa-garching.mpg.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From steven at gcc dot gnu dot org 2005-02-10 10:50 -------
The real problem here is that the tree alias analyses do not take full
advantage of 'restrict'. There are more PRs about this, and it is also *the*
major source of regressions in a well-known commercial benchmark.
But this is not fixable for GCC 4.0, it's too late for that now I think.
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CC| |dnovillo at gcc dot gnu dot
| |org, mark at codesourcery
| |dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16913