[M3commit] CVS Update: cm3

[Tony Hosking]

On 11 May 2009, at 16:49, Jay wrote:

> It is, you know, a reasonable message.

I know.

> One might wonder how we avoided it?

I don't recall seeing it before and wonder if something has changed in  
the way locals are handled since last I tried -O3.

> Mark all locals volatile in functions with try/raise/fatal?

I suppose, though I think we'd like to be smarter.

>
>
>  - Jay
>
>
> From: jay.krell at cornell.edu
> To: hosking at cs.purdue.edu
> Date: Mon, 11 May 2009 06:47:49 +0000
> CC: m3commit at elegosoft.com
> Subject: Re: [M3commit] CVS Update: cm3
>
> I don't think so.
>
>   - Jay
>
> From: hosking at cs.purdue.edu
> To: hosking at cs.purdue.edu
> Date: Mon, 11 May 2009 15:19:31 +1000
> CC: m3commit at elegosoft.com; jay.krell at cornell.edu
> Subject: Re: [M3commit] CVS Update: cm3
>
> Jay,
>
> Have you changed something about how the compiler invokes setjmp/ 
> longjmp for exception handling?
>
> -- Tony
>
> On 11 May 2009, at 15:18, Tony Hosking wrote:
>
> We didn't used to get these errors with -O3.  I don't know what has  
> changed with the compiler backend, but something new is happening.   
> We should check the logs to see the last time I pushed through -O3,  
> and figure out what changed since.
>
> On 11 May 2009, at 14:48, Jay wrote:
>
> I got a lot of those warnings when I tried -O3.
> And one error running the result that I didn't look into.
>
>  - Jay
>
>
> > Date: Mon, 11 May 2009 05:24:22 +0000
> > To: m3commit at elegosoft.com
> > From: hosking at elego.de
> > Subject: [M3commit] CVS Update: cm3
> >
> > CVSROOT: /usr/cvs
> > Changes by: hosking at birch. 09/05/11 05:24:22
> >
> > Modified files:
> > cm3/m3-libs/m3core/src/runtime/POSIX/: RTPerfTool.m3
> >
> > Log message:
> > Avoid warning:
> >
> > ../src/runtime/POSIX/RTPerfTool.m3: In function  
> 'RTPerfTool__StartTool':
> > ../src/runtime/POSIX/RTPerfTool.m3:125: warning: variable  
> 'M3_AcxOUs_execResult' might be clobbered by 'longjmp' or 'vfork'
> >
>
>
>

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