[debug-early, jit] Port of jit to debug-early

[David Malcolm]

On Fri, 2015-06-05 at 15:37 -0400, Aldy Hernandez wrote:
> On 06/05/2015 03:00 PM, David Malcolm wrote:
> > "jit" isn't part of "all" languages, and currently fails to build on
> > the aldyh/debug-early branch:
> 
> The debug-early work is now in mainline.  Feel free to commit when you 
> deem appropriate, since you are the jit maintainer ;-).

Given that it fixes the build of the jit, I've gone ahead and committed
the patch as-is to trunk (r224170).

> >   static void
> > -jit_langhook_write_globals (void)
> > +jit_langhook_post_compilation_parsing_cleanups (void)
> >   {
> >     gcc::jit::playback::context *ctxt = gcc::jit::active_playback_ctxt;
> >     gcc_assert (ctxt);
> >     JIT_LOG_SCOPE (ctxt->get_logger ());
> >
> > -  ctxt->write_global_decls_1 ();
> > -
> > -  /* This is the hook that runs the middle and backends: */
> > -  symtab->finalize_compilation_unit ();
> > -
> > -  ctxt->write_global_decls_2 ();
> > +  ctxt->finalize_global_decls ();
> 
> This hook gets called after the compilation proper has run, and we're 
> trying to avoid it.  We're trying to get all the front-ends to finish 
> their thing and avoid depending on the compilation proper.
> 
> Can you not get this to work without running finalize_global_decls after 
> the compilation proper?  If not, then I see no problem with your 
> patch....after all, C++ is still using this hook :(.

Am investigating.

Thanks
Dave