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Re: [OpenACC 1/11] UNIQUE internal function
- From: Nathan Sidwell <nathan at acm dot org>
- To: Richard Biener <richard dot guenther at gmail dot com>, Jakub Jelinek <jakub at redhat dot com>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Bernd Schmidt <bschmidt at redhat dot com>, Jason Merrill <jason at redhat dot com>, "Joseph S. Myers" <joseph at codesourcery dot com>
- Date: Thu, 22 Oct 2015 09:02:17 -0400
- Subject: Re: [OpenACC 1/11] UNIQUE internal function
- Authentication-results: sourceware.org; auth=none
- References: <5627DD78 dot 9040302 at acm dot org> <5627E0DF dot 9050507 at acm dot org> <20151022080444 dot GC478 at tucnak dot redhat dot com> <CAFiYyc09Kkx3uGPJWSYkuyRPEMLjY5Uk8r=72jp6L7kj84O9Dw at mail dot gmail dot com>
On 10/22/15 04:07, Richard Biener wrote:
On Thu, Oct 22, 2015 at 10:04 AM, Jakub Jelinek <jakub@redhat.com> wrote:
Do you have to scan the whole bb? E.g. don't or should not those
unique IFNs force end of bb?
Yeah, please make them either end or start a BB so we have to check
at most a single stmt. ECF_RETURNS_TWICE should achieve that,
it also makes it a code motion barrier.
Thanks, I'd not thought of doing it like that. Will try.
nathan