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[Bug tree-optimization/27364] [4.1/4.2 Regression] VRP miscompiles some unsigned math
- 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: 30 Apr 2006 19:45:00 -0000
- Subject: [Bug tree-optimization/27364] [4.1/4.2 Regression] VRP miscompiles some unsigned math
- References: <bug-27364-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #12 from pinskia at gcc dot gnu dot org 2006-04-30 19:44 -------
The problem here is that 3321928 * 1294 wraps to 3607536 but VRP does not see
it because 3607536 > 3321928. Oh how I hate wrapping.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27364