Re: [patch,openacc] Fix PR71959: lto dump of callee counts

[Julian Brown <julian@codesourcery.com>]

Hi Jakub,

Thanks for review!

On Fri, 21 Dec 2018 14:31:19 +0100
Jakub Jelinek <jakub@redhat.com> wrote:

> On Fri, Dec 21, 2018 at 01:23:03PM +0000, Julian Brown wrote:
> > 2018-xx-yy  Nathan Sidwell  <nathan@acm.org>
> > 
> >         PR lto/71959
> >         libgomp/
> >         * testsuite/libgomp.oacc-c++/pr71959-a.C: New.
> >         * testsuite/libgomp.oacc-c++/pr71959.C: New.  
> 
> Just nits, better use pr71959-aux.cc (*.cc files aren't considered as
> testcases by *.exp:
>     set tests [lsort [concat \
>                           [find $srcdir/$subdir *.C] \
>                           [find
> $srcdir/$subdir/../libgomp.oacc-c-c++-common *.c]]] ) and just a is
> weird.

Fixed.

> > commit c69dce8ba0ecd7ff620f4f1b8dacc94c61984107
> > Author: Julian Brown <julian@codesourcery.com>
> > Date:   Wed Dec 19 05:01:58 2018 -0800
> > 
> >     Add testcase from PR71959
> >     
> >     	libgomp/  
> 
> Please mention
> 	PR lto/71959
> here in the ChangeLog.

Fixed.

> >     	* testsuite/libgomp.oacc-c++/pr71959-a.C: New.
> >     	* testsuite/libgomp.oacc-c++/pr71959.C: New.  
> 
> > +void apply (int (*fn)(), Iter out) asm
> > ("_ZN5Apply5applyEPFivE4Iter");  
> 
> Will this work even on targets that use _ or other symbol prefixes?

I'd guess so, else there would be no portable way of using "asm" to
write pre-mangled C++ names. The only existing similar uses I could find
in the testsuite are for the ifunc attribute, not asm, though (e.g.
g++.dg/ext/attr-ifunc-*.C).

Anyway, OpenACC is only useful for a handful of targets at present,
neither of which use special symbol prefixes AFAIK.

> > --- /dev/null
> > +++ b/libgomp/testsuite/libgomp.oacc-c++/pr71959.C
> > @@ -0,0 +1,31 @@
> > +// { dg-additional-sources "pr71959-a.C" }
> > +
> > +// pr lto/71959 ICEd LTO due to mismatch between writing & reading
> > behaviour  
> 
> Capital PR instead of pr .

Fixed. OK now?

Thanks,

Julian