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[Bug c/23577] suprious warnings about unhanled cases in switches
- 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: 26 Aug 2005 13:02:35 -0000
- Subject: [Bug c/23577] suprious warnings about unhanled cases in switches
- References: <20050826125315.23577.dps@simpson.demon.co.uk>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-08-26 13:02 -------
The warning is done without flow control.
The optmization needs a "full" VRP which keeps of track of discontinuous ranges which is too expensive
really.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23577