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[Bug libgomp/64672] ICEs in libgomp.oacc-fortran when using the '-g -flto' options in the test suite.
- From: "rguenther at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 21 Jan 2015 13:17:33 +0000
- Subject: [Bug libgomp/64672] ICEs in libgomp.oacc-fortran when using the '-g -flto' options in the test suite.
- Auto-submitted: auto-generated
- References: <bug-64672-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64672
--- Comment #15 from rguenther at suse dot de <rguenther at suse dot de> ---
On Wed, 21 Jan 2015, vries at gcc dot gnu.org wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64672
>
> --- Comment #14 from vries at gcc dot gnu.org ---
> (In reply to rguenther@suse.de from comment #13)
> > But I prever -fopenmp/-fopenacc as LTO
> > options.
> >
>
> What is the rationale for the preference ?
Might be required for -fparallelize-loops or vectorization to work (not
sure)?
> If we go with -fopenmp/-fopenacc as LTO options, we still have to address what
> happens when combining different settings for -fopenmp/-fopenacc in lto. AFAIU,
> we have to add handling them as 'union' options in lto-wrapper.c.
Yes.