https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118739
--- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> --- So indeed the bisected revision just restored a previous change which was originally done by Segher, r14-9692-g839bc42772ba7a, not sure if the issue would reproduce between that and the initial reversion in r14-9885-g109f1b28fc94c9 I don't know much of combines CCmode handling nor of CC vs CCNO to be of any help here, but it does look like a genuine combine issue.
