From: Anthony Tavener <anthony.tavener@gmail.com>
To: Gabriel Kerneis <kerneis@pps.jussieu.fr>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Re: ocaml 3.12.1 and delimcc
Date: Thu, 25 Oct 2012 21:47:54 -0600 [thread overview]
Message-ID: <CAN=ouMTwppjOe9JSLCyev7uWuoK2QhUGPa+=DhYwBEL7vrd3nA@mail.gmail.com> (raw)
In-Reply-To: <20121019103535.GA3865@kerneis.info>
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It turns out there is one specific optimization to disable with gcc 4.7.x:
-fno-ipa-sra
So stacks-native.c can be compiled with -O2 -fno-ipa-sra.
The reason I continued to have a problem even after -O0, as Oleg found
out, is that testd0opt would link to my bad system-installed library
rather than the new one in the current directory. *facepalm*
On Fri, Oct 19, 2012 at 4:35 AM, Gabriel Kerneis <kerneis@pps.jussieu.fr>wrote:
> On Fri, Oct 19, 2012 at 02:20:56AM -0000, oleg@okmij.org wrote:
> > I'll see if I could find a pragma or other way to disable undesirable
> > optimizations.
>
> No tested, but you could try -fno-optimize-sibling-calls:
> $ gcc --help=optimizers|grep "tail recursive"
> -foptimize-sibling-calls Optimize sibling and tail recursive calls
>
> Best,
> --
> Gabriel
>
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prev parent reply other threads:[~2012-10-26 3:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-16 7:06 oleg
2012-10-16 14:59 ` Anthony Tavener
2012-10-19 2:20 ` oleg
2012-10-19 10:35 ` Gabriel Kerneis
2012-10-20 17:25 ` Anthony Tavener
2012-10-26 3:47 ` Anthony Tavener [this message]
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