This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: Drop target_option_node reconstruction logic.


> On 2014.11.14 at 20:13 +0100, Jan Hubicka wrote:
> > this patch kills lto's code to rebuilt DECL_FUNCTION_SPECIFIC_TARGET from target
> > attributes.  This code was never complete and it should be no-op now when we save
> > tehe target nodes.
> > It also makes free_land_data_in_decl to actually anotate all function bodies with
> > a default option node.  The reason is that when LTOint units, one compiled with
> > default settings and one, say with -msse3, we want ot keep these functions preserved.
> 
> FYI this patch finally fixes: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60607

Yes, properly combining different target flags was the main motivation (so we
get correct LTO for firefox :) Still hope to be able to finish the
optimization_node part, so combining other flags will work as expected.

If you could turn this into a testcase, it would be cool.

Honza
> 
> Thanks.
> -- 
> Markus


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]