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[Bug tree-optimization/21959] [4.1 Regression] vrp miscompiles Ada front-end, drops loop exit test in well-defined wrap-around circumstances
- 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: 17 Jun 2005 20:54:32 -0000
- Subject: [Bug tree-optimization/21959] [4.1 Regression] vrp miscompiles Ada front-end, drops loop exit test in well-defined wrap-around circumstances
- References: <20050608123145.21959.pinskia@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-06-17 20:54 -------
Why does ivcanon/tree-ssa-loop-niter gets this correct (at 128) but VRP cannot.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21959