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[Bug tree-optimization/18694] [4.0 regression] loop miscompilation at -O1 (-ftree-ch)
- From: "kazu at cs dot umass dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Dec 2004 02:14:26 -0000
- Subject: [Bug tree-optimization/18694] [4.0 regression] loop miscompilation at -O1 (-ftree-ch)
- References: <20041127224610.18694.falk@debian.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From kazu at cs dot umass dot edu 2004-12-09 02:14 -------
DOM1 is translating tmp_4 < d_5 (in L2:) into d23_2 < d23_2,
which would be false.
So the threader itself doesn't seem to be broken. Something else is.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18694