Re: lto1: internal compiler error: in lto_symtab_merge_decls_1, at lto-symtab.c:549

[Toon Moene <toon at moene dot org>]

Richard Guenther wrote:

> On Sat, Apr 24, 2010 at 3:28 PM, Toon Moene <toon@moene.org> wrote:

> > lto-symtab.c:549:
> >
> >    524
> >    525 /* Helper to process the decl chain for the symbol table entry *SLOT.
> >  */
> >    526
> >    527 static int
> >    528 lto_symtab_merge_decls_1 (void **slot, void *data ATTRIBUTE_UNUSED)
> >    ....
> >    545   /* Assert it's the only one.  */
> >    546   if (prevailing)
> >    547     for (e = prevailing->next; e; e = e->next)
> >    548       gcc_assert (e->resolution != LDPR_PREVAILING_DEF_IRONLY
> >    549                   && e->resolution != LDPR_PREVAILING_DEF);
> >
> > Of course, I'd like to make a test case out of this - but what is this
> > assert checking ?
>
> It is checking that for one symbol we only have one definition.
>
> You are using -fuse-linker-plugin?

Indeed, I do (all of our code ends up in libraries - .a files - so I 
have to, to make -flto -fwhole-program be meaningful).

Is it a problem with COMMON ?  Those typically have umpteen definitions, 
which all have to match ...

Thanks in advance,

--
Toon Moene - e-mail: toon@moene.org - phone: +31 346 214290
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