[Bug tree-optimization/104497] [11/12 Regression] Invalid gimple produced for (A?vect:vect)[i]

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104497

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Interestingly the C++ frontend handles the COND_EXPR like

  (void) (VIEW_CONVERT_EXPR<int[4]>(y)[i] = (i & 1) != 0 ?
VIEW_CONVERT_EXPR<int[4]>(inv)[i] : VIEW_CONVERT_EXPR<int[4]>(src)[i]) >>>>>;

avoiding this issue.