[Bug libgomp/64672] ICEs in libgomp.oacc-fortran when using the '-g -flto' options in the test suite.

[rguenther at suse dot de]

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.