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[Bug tree-optimization/30318] VRP does not create ANTI_RANGEs on overflow
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 28 Dec 2006 20:32:52 -0000
- Subject: [Bug tree-optimization/30318] VRP does not create ANTI_RANGEs on overflow
- References: <bug-30318-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from rguenth at gcc dot gnu dot org 2006-12-28 20:32 -------
Doesn't seem to work. gcc.c-torture/execute/vrp-5.c fails because
[5, +INF] + [5, +INF] is combined to [10, +INF-1] (and 5 + +INF-5 is zero
anyways).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30318