[Bug target/114134] [14 Regression] Extra mov instructions for simple function compared with GCC13

[pilarlatiesa at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114134

--- Comment #3 from Pilar Latiesa <pilarlatiesa at gmail dot com> ---
(In reply to Richard Biener from comment #2)
> I guess the testcase can be simplified to just show the return value
> handling issue.

I think this suffices:

struct TVec3D { double x, y, z; };

struct TKey { int i, j, k; };

TKey Key(TVec3D const &r)
  { return {int(r.x), int(r.y), int(r.z)}; }