[Bug lto/50494] gcc.dg/vect/vect-reduc-2char.c fails spuriously on ppc with -flto

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50494

--- Comment #23 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2013-03-04 16:10:53 UTC ---
> How can the patch cause a name collision when all the patch does is
> avoid creating a new decl...?  They are static and thus should be
> mangled.

They clearly aren't.

> Well, and if we want a new decl just to re-assign a unique name here
> then we want to copy over alignment information.  That is, LTO should
> handle constant-pool entries by _not_ streaming the decl then.  Honza,
> how are those supposed to make the symtab -> WPA -> LTRANS transition
> anyway?

The irony being that the initial implementation didn't stream the DECL but was
changed because the varpool was just starting to being streamed as well. :-)