From: Arnaud Charlet <charlet@adacore.com>
To: Jakub Jelinek <jakub@redhat.com>
Cc: Jeff Law <law@redhat.com>, Richard Biener <rguenther@suse.de>,
Eric Botcazou <ebotcazou@adacore.com>,
gcc-patches@gcc.gnu.org
Subject: Re: [PATCH] Don't DCE const/pure calls that can throw if cfg can't be altered (PR rtl-optimization/88870)
Date: Thu, 17 Jan 2019 07:59:00 -0000 [thread overview]
Message-ID: <20190117075926.GA30471@adacore.com> (raw)
In-Reply-To: <20190116225104.GC30353@tucnak>
> > > PR rtl-optimization/88870
> > > * dce.c (deletable_insn_p): Never delete const/pure calls that can
> > > throw if we can't alter the cfg or delete dead exceptions.
> > > (mark_insn): Don't call find_call_stack_args for such calls.
> > >
> > > * gcc.dg/pr88870.c: New test.
> > OK. Though I wonder if we want to continue to support
> > -fnon-call-exceptions. With GCJ gone is there any value left in that
> > capability? There's little doubt in my mind other parts of GCC are not
> > -fnon-call-exception safe.
>
> AFAIK Ada and Go use -fnon-call-exceptions by default and heavily rely on
> it.
Agreed.
next prev parent reply other threads:[~2019-01-17 7:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-16 22:43 Jakub Jelinek
2019-01-16 22:48 ` Jeff Law
2019-01-16 22:51 ` Jakub Jelinek
2019-01-17 7:59 ` Arnaud Charlet [this message]
2019-01-17 11:27 ` Eric Botcazou
2019-01-17 11:33 ` Jakub Jelinek
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