On Mon, Mar 30, 2015 at 07:06:39PM +0200, Jan Hubicka wrote:
> > On Mon, Mar 30, 2015 at 05:02:57 +0200, Jan Hubicka wrote:
> > > * lto-symtab.c (lto_symtab_merge_decls_2): Silence warnings on
> > > artificial decls.
> >
> > Shouldn't this patch fix libgomp.c++/target-3.C in an offloading-enabled
> > configuration? It still fails...
> >
> > libgomp/testsuite/libgomp.c++/../libgomp.c/target-2.c:27:13: warning: type
> > 'struct .omp_data_s.7' violates one definition rule [-Wodr]
> > #pragma omp parallel for reduction(+:s)
> > ^
> > #pragma omp parallel for reduction(+:s)
> > ^
> > double b[3 * x], c[3 * x], d[3 * x], e[3 * x];
> > ^
> > double b[3 * x], c[3 * x], d[3 * x], e[3 * x];
> > ^
>
> No, that is an different warning. Why those types are different? Is this a
> full warning output?
.omp_data_s.7 is a name of a really unnamed struct (DECL_NAMELESS) and also
DECL_ARTIFICIAL, contains compiler generated fields and should never be
checked for ODR violations.
I wonder if you have any DECL_ARTIFICIAL structs you want to warn on, if
yes, then at least ignore DECL_NAMELESS ones.
Jakub
