[M3commit] CVS Update: cm3

[Jay]

Uh, any locals referenced in a finally block?

  And whatever locals are referenced by try/except/raise/lock?

If we have that capability easily.

Anyway, parse.c doesn't change much.

 

 - Jay
 


From: hosking at cs.purdue.edu
To: jay.krell at cornell.edu
Date: Mon, 11 May 2009 16:54:26 +1000
CC: m3commit at elegosoft.com
Subject: Re: [M3commit] CVS Update: cm3




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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