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[Bug tree-optimization/23821] [4.0/4.1/4.2/4.3 Regression] DOM and VRP creating harder to optimize code
- From: "spop 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 Jan 2008 00:09:08 -0000
- Subject: [Bug tree-optimization/23821] [4.0/4.1/4.2/4.3 Regression] DOM and VRP creating harder to optimize code
- References: <bug-23821-5077@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #13 from spop at gcc dot gnu dot org 2008-01-10 00:09 -------
Subject: Re: [4.0/4.1/4.2/4.3 Regression] DOM and VRP creating harder to
optimize code
For fixing this bug, one option is to disable symbolic propagations,
as in the patchlet that I sent before, and also in the DOM pass.
We have to show that there is no value in doing these transformations.
Sebastian
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23821