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[Bug tree-optimization/23835] case where gcc 4.1.0 -O3 compile takes two times longer than gcc 3.4.3
- 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 23:29:22 -0000
- Subject: [Bug tree-optimization/23835] case where gcc 4.1.0 -O3 compile takes two times longer than gcc 3.4.3
- 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 23:29 -------
(In reply to comment #8)
> We have at least 50000 SSA_NAMEs, that is just huge. We have only V_MAY_DEFs for .GLOBAL_VAR
> and a TMT.
Over half, 40,000 are scalars registers.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23835