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[Bug tree-optimization/17528] [4.0 Regression] tree optimization incorrectly optimizes away entire function (incorrect aliasing detection?)
- 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: 16 Sep 2004 22:10:02 -0000
- Subject: [Bug tree-optimization/17528] [4.0 Regression] tree optimization incorrectly optimizes away entire function (incorrect aliasing detection?)
- References: <20040916215056.17528.rearnsha@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-09-16 22:10 -------
hmm, DCE is removing a COND_EXPR and some BB for some reason:
if (D.19406_5 != 0B) goto <L0>; else goto <L2>;
I cannot figure out why yet.
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |critical
Summary|tree optimization |[4.0 Regression] tree
|incorrectly optimizes away |optimization incorrectly
|entire function (incorrect |optimizes away entire
|aliasing detection?) |function (incorrect aliasing
| |detection?)
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17528