SSA operand interface change proposal

[Zdenek Dvorak]

Hello,

> > how are the immediate uses of the ssa name represented?
> > 
> 
> The use operands have immeidate_use nodes which are doubly linked list
> off the SSA_NAME node. So linking in and out is fast and painless.

do they provide just a pointer to the statement where they are used,
or also to use_operand_ptr? The later would be very nice, for the
performance reasons.

Zdenek