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[Bug tree-optimization/18800] [4.0 Regression] ivopt missed
- From: "rakdver at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Dec 2004 22:12:07 -0000
- Subject: [Bug tree-optimization/18800] [4.0 Regression] ivopt missed
- References: <20041202215439.18800.pinskia@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From rakdver at gcc dot gnu dot org 2004-12-12 22:12 -------
The problem is unrelated to the fact that the array is local. It is a problem
in the algorithm that tries to find a suitable set of ivs -- it gets stuck in a
local optimum, thus causing a suboptimal code as a result. I am testing a patch.
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rakdver at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Summary|[4.0 Regression] ivopt |[4.0 Regression] ivopt
|missed, local array |missed
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18800