[Bug rtl-optimization/70944] [7 Regression] ICE in immed_wide_int_const, at emit-rtl.c:606 with -O3

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70944

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Maybe disable make_compound_operation generally for vectors.