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[Bug optimization/13219] -fgcse pessimizes double complex calculation
- 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: 29 Nov 2003 02:39:51 -0000
- Subject: [Bug optimization/13219] -fgcse pessimizes double complex calculation
- References: <20031128171739.13219.coyote@coyotegulch.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2003-11-29 02:39 -------
-fnew-ra also helps me on PPC, also the tree-ssa also has the same problem.
The problem is that GCSE creates new temps and that causes problems for the current register
allocator.
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What |Removed |Added
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Severity|normal |enhancement
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13219