This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH] Don't cross-jump in between frame related and non-frame related insns (PR target/80102, take 3)
- From: Jakub Jelinek <jakub at redhat dot com>
- To: Jeff Law <law at redhat dot com>
- Cc: Richard Henderson <rth at redhat dot com>, gcc-patches at gcc dot gnu dot org
- Date: Fri, 24 Mar 2017 14:35:24 +0100
- Subject: Re: [PATCH] Don't cross-jump in between frame related and non-frame related insns (PR target/80102, take 3)
- Authentication-results: sourceware.org; auth=none
- Authentication-results: ext-mx09.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com
- Authentication-results: ext-mx09.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=jakub at redhat dot com
- Dkim-filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 54E304E327
- Dmarc-filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 54E304E327
- References: <20170320211520.GO11094@tucnak> <ad6188d1-9413-35e9-3d1e-1edcd7b06bf6@redhat.com> <20170321074143.GT11094@tucnak> <20170321175334.GY11094@tucnak> <20170321202146.GA11094@tucnak> <3dea59bf-656e-beeb-fc7b-f5e796ba167b@redhat.com> <20170324130442.GJ11094@tucnak>
- Reply-to: Jakub Jelinek <jakub at redhat dot com>
On Fri, Mar 24, 2017 at 02:04:42PM +0100, Jakub Jelinek wrote:
> On Fri, Mar 24, 2017 at 06:37:10AM -0600, Jeff Law wrote:
> > > 2017-03-21 Jakub Jelinek <jakub@redhat.com>
> > >
> > > PR target/80102
> > > * cfgcleanup.c (old_insns_match_p): Don't cross-jump in between /f
> > > and non-/f instructions. If both i1 and i2 are frame related,
> > > verify all CFA notes, their order and content.
> > >
> > > * g++.dg/opt/pr80102.C: New test.
> > Presumably this didn't ICE at some point in the past, so it's a regression?
> > (it's not marked as such in the BZ).
>
> It doesn't ICE for me with r238210 and ICEs with current trunk, I don't have
> too many ppc64le compilers around though.
GCC 4.8 doesn't ICE either.
Jakub