question on verify_ssa failure due to ccp in dom3 (PR30784)

[Ian Lance Taylor]

Dorit Nuzman <DORIT@il.ibm.com> writes:

>       D.2103_79 = BIT_FIELD_REF <{2, 2}, 64, 0>;
> 
> 
> ...which causes he following ICE:
> "
>    bug.c:8: error: invalid reference prefix
>    {2, 2}
>    bug.c:8: internal compiler error: verify_stmts failed
> "

Maybe fold-const.c needs to recognize this case?  Actually it seems
like it already does.  Why didn't it get folded by
substitute_and_fold?

Ian