https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112415
--- Comment #28 from dave.anglin at bell dot net --- On 2023-11-08 7:07 p.m., law at gcc dot gnu.org wrote: > Do we already have a dump for the key function? Presumably f-m-o doesn't > trigger*that* much. And if this is triggering w/o LTO we can probably move > to > cross debugging and analysis of those dump files and assembly code with and > without f-m-o enabled, narrowing our focus on the key function. I tried looking at the difference with and without f-m-o and it was quite large. The difference with and without strict aliasing is much smaller. The main differences that I saw relate to the inlining of compiler_visit_expr and compiler_visit_expr1.