Re: [tree-ssa] Lowering of VLA's, part 2

[Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>]

Hello,

> >> > On Fri, 2003-08-29 at 15:15, Zdenek Dvorak wrote:
> >> >
> >> >> size of x now depends on non-existent variable z.1, which causes a crash
> >> >> when an attempt to copy it before passing to foo is made.
> >> >> 
> >> > But this also means that we are still generating VLAs.  Shouldn't your
> >> > original change removed that?
> >> 
> >> No, the decl still has VLA type.
> >> 
> > So, we can't really expose all VLAs then?  I was hoping we could
> > eventually get rid of the 'has_hidden_uses' attribute.  Oh, well.

me too :-(

> Perhaps we want to make the copy explicit in the trees.

I have considered this; however it would probably need some hacking
into call expansion (no idea how difficult one).

Zdenek