[Bug c++/63419] verify_gimple failed: "vector CONSTRUCTOR element is not a GIMPLE value"

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63419

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 33682
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33682&action=edit
autoreduced testcase

Fix in testing, autoreduced testcase attached (still too big for my taste).