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Re: Also test -O0 for OpenACC C, C++ offloading test cases
- From: Jakub Jelinek <jakub at redhat dot com>
- To: Thomas Schwinge <thomas at codesourcery dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Wed, 23 Mar 2016 20:02:01 +0100
- Subject: Re: Also test -O0 for OpenACC C, C++ offloading test cases
- Authentication-results: sourceware.org; auth=none
- References: <87mvpqrets dot fsf at kepler dot schwinge dot homeip dot net>
- Reply-to: Jakub Jelinek <jakub at redhat dot com>
On Tue, Mar 22, 2016 at 11:23:43AM +0100, Thomas Schwinge wrote:
> As discussed in
> <http://news.gmane.org/find-root.php?message_id=%3C87oaj3z280.fsf%40schwinge.name%3E>
> (and similar to what we're already doing for Fortran, and similar to what
> recently got committed to libgomp/testsuite/libgomp.hsa.c/c.exp), it has
> been helpful to also run C, C++ offloading test cases with -O0 in
> addition to the -O2 default. Making my earlier gomp-4_0-branch patch
> conceptually simpler, I came up with the following; OK for trunk?
How big difference in make check-target-libgomp time is that?
Without PTX offloading I bet zero, but with PTX offloading configured, is it
10% or 50% slower?
Jakub