Uninitialized variable warnings

[Joern Rennecke]

> I didn't know that either.  Is there a difference between
> (reg_equiv_mem[i] || reg_equiv_address[i]) and
> reg_equiv_memory_loc[i]?  If not, why is there a separate table?

reg_equiv_memory_loc gets set first.  later reload decides if to set
reg_equiv_mem or reg_equiv_address.

>         else if (GET_CODE (value.base) == LABEL_REF)
...
> If GET_CODE (value.base) is not SYMBOL_REF or LABEL_REF, hi is used
> unintialized.  Maybe that never happens with correct RTL, but we ought

Oops, I missed the 'if' in the 'else if',