From: "Richard W.M. Jones" <rich@annexia.org>
To: Xavier Leroy <Xavier.Leroy@inria.fr>
Cc: caml users <caml-list@inria.fr>
Subject: Re: [Caml-list] ppc64le behaviour of Int64.min_int ÷ -1
Date: Mon, 29 Jun 2015 19:15:42 +0100 [thread overview]
Message-ID: <20150629181542.GF31462@annexia.org> (raw)
In-Reply-To: <20150629180839.GB4876@annexia.org>
On Mon, Jun 29, 2015 at 07:08:39PM +0100, Richard W.M. Jones wrote:
> On Mon, Jun 29, 2015 at 08:00:30PM +0200, Xavier Leroy wrote:
> > Hi Richard,
> >
> > You need to put "let division_crashes_on_overflow = true" in asmcomp/$ARCH/
> > arch.ml, just like in asmcomp/power/arch.ml. The name of the variable is
> > perhaps counterintuitive but means "min_int / -1 doesn't do what we want,
> > so add tests (in cmmgen) for this case".
>
> Thanks - I will try that.
And in fact it works too - great!
Rich.
prev parent reply other threads:[~2015-06-29 18:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-29 17:50 Richard W.M. Jones
2015-06-29 18:00 ` Xavier Leroy
2015-06-29 18:08 ` Richard W.M. Jones
2015-06-29 18:15 ` Richard W.M. Jones [this message]
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