https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103500
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target| |aarch64 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- IIRC on x86 we are using callee copying to put stack arguments into an appropriately aligned local stack slot because the ABI does not pass over-aligned types differently from naturally aligned types. Note that is IIRC not for reference passing but for passing on the stack.