Re: [tree-ssa] fix opt/13798

[Dale Johannesen <dalej at apple dot com>]

On Jan 28, 2004, at 4:33 AM, Jan Hubicka wrote:
> I think the proper sollution would be to simply deal with local static
> variables as if they were global by frontends, but I didn't get across
> to implement this yet.

Please don't do this for scalars.  I'm looking at the reverse 
transformation,
changing local statics to automatics.  Should be a win in the rare cases
where it's possible:
- Static's address is  not taken
- Static is stored into before being loaded, on all paths through the 
code
- Function is a leaf whose address is not taken.  Or it's Fortran or 
other
language that doesn't have recursion.  (Or you can figure out from the
callgraph it's not called recursively, even indirectly, but that's 
harder.)
Am I missing anything?