[Bug target/120839] [16 Regression] Incorrect alignment for arguments on stack

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120839

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
We expand this as

(insn 5 2 6 2 (set (reg:XF 100)
        (mem/c:XF (reg/f:DI 16 argp) [1 f.a+0 S16 A256])) "t.c":5:20 172
{*movxf_internal}
     (nil))

and it seems the caller properly aligns the argument on the stack (but I do not
remember the psABI actually saying it has to).