Re: [patch 10/10] debug-early merge: compiler proper

[Aldy Hernandez <aldyh at redhat dot com>]

On 05/29/2015 03:33 PM, Jason Merrill wrote:
> On 05/29/2015 03:26 PM, Richard Biener wrote:
> > ISTR I had to mark the gimple reg used for the bound as
> > non-DECL_IGNORED for the LTO stuff.
>
> Let's go with that, then.

Well, I did play around with that option originally, but temporaries do 
not end up in the symbol table, so we won't see them to feed them to 
late_global_decl.

We'd have to save them on the side to make them survive until late and 
then feed them to late_global_decl separately (which I'm sure Richi will 
hate), or we could drill down through the array type/domain to find the 
gimple register (which now has an early DIE) and call late_global_decl 
on it.  However, this last option sounds like a variant of my original 
idea-- fill the bound location later, with the unfortunate side-effect 
of having an additional DIE (the gimple register DIE).

I guess we could iterate through all the gimple registers late that have 
DECL_IGNORED_P == NULL and call late_global_decl on them, but I dislike 
this as well.  Actually, all ideas involving generating DIEs for 
temporaries involve an additional DIE we wouldn't otherwise get.

Can I clean up my original idea instead?

Aldy