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[Bug tree-optimization/23604] [4.1 Regression] wrong code due to VRP
- From: "jakub 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 Sep 2005 13:24:32 -0000
- Subject: [Bug tree-optimization/23604] [4.1 Regression] wrong code due to VRP
- References: <20050828194312.23604.pinskia@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From jakub at gcc dot gnu dot org 2005-09-30 13:24 -------
Jim's patch certainly worked for me. But the question is if we can do more.
If not anti-range and limit_vr->min == limit_vr->max, then we at least can
create anti-range from TYPE_MIN_VALUE to TYPE_MAX_VALUE.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23604