https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116831
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- > I'm not sure why that's created That reminds me the -folding option to the dump option is not documented (PR 114892) but if you use -all, you would have gotten the dump where it says was gimple_simplified to that and which match pattern was happening there.