On Thu, Aug 1, 2019 at 3:10 PM Martin Liška <mli...@suse.cz> wrote:
>
> Hi.
>
> In LTO WPA mode we don't have to append temp file name
> to the global cdtor function names.
Is that true? You can link with -r -flinker-output=rel and use
multiple WPA phases whose results you then finally link.
So I don't think it's that easy. You might be able to look at
all_translation_units, pick the one with a sensible name
(hmm, not sure if we actually have a name there) and the lowest
UID and use that? Thus, make the set of involved source files
known and pick one. Ah,
struct GTY(()) tree_translation_unit_decl {
struct tree_decl_common common;
/* Source language of this translation unit. Used for DWARF output. */
const char * GTY((skip(""))) language;
/* TODO: Non-optimization used to build this translation unit. */
/* TODO: Root of a partial DWARF tree for global types and decls. */
};
so you might be able to get at a filename via the decls location,
I'm not sure. Do we have any LTO records per "input file" where we
can stream main_input_filename to?
> It helps to have a reproducible
> builds with LTO mode.
>
> Patch can bootstrap on x86_64-linux-gnu and survives regression tests.
>
> Ready to be installed?
> Thanks,
> Martin
>
> gcc/ChangeLog:
>
> 2019-08-01 Martin Liska <mli...@suse.cz>
>
> PR lto/91307
> * tree.c (get_file_function_name): Use "wpa" when
> we are in WPA LTO mode.
> ---
> gcc/tree.c | 17 +++++++++++------
> 1 file changed, 11 insertions(+), 6 deletions(-)
>
>
