https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100582
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |missed-optimization Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org Last reconfirmed| |2021-05-17 Ever confirmed|0 |1 Status|UNCONFIRMED |ASSIGNED --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- First of all we fail to if-convert because we think iftmp.0_9 = VIEW_CONVERT_EXPR<unsigned char[32]>(a)[i_15]; tree could trap... which is because we're concerned about out-of-bound access of 'a' and treat this as a array-at-struct-end.