[tree-ssa] Walking blocks in reverse

[Diego Novillo]

On Fri, 2003-04-04 at 17:18, Andrew MacLeod wrote:

> Live range stuff will need to walk every stmt... 
>
Right.

> I suppose you could use the same routines in rewrite_block to push just
> the iterators you do care about, and pop them off later...
>
Well, it's still cheaper to only push the bits I need (namely, the
defs).  Otherwise, we would have to pull the defs and vdefs out of the
statements as we walked the stack back.


Diego.