https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108757
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://gcc.gnu.org/bugzill | |a/show_bug.cgi?id=37451 Component|tree-optimization |rtl-optimization --- Comment #14 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Oh yes pr 37451 . There are a few other related ones referenced now too. But basically it is doloop which is introducing this. The original example does not correspond to the example in given by the eigen folks either..