[Bug tree-optimization/96818] [11 Regression] ICE: in decompose, at wide-int.h:984 at -O since r11-2883

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96818

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
I only see downsides forcing the same type in the IL, it makes propagation of
for example widening cast sources into switches much harder (need to convert
all case labels).