[M3commit] CVS Update: cm3

[Jay K]

But I admit I'm nervous about removing all the volatile, esp. on stores.
We should have a bunch of tests using exceptions that access locals/parameters in except and finally blocks.
I'm willing to put back volatile on all stores.
Or even loads if there is justification.

I thought there'd be a setjmp in all functions with try/except/finally, and therefore the same
pessimization, but now I'm not sure of that.

 - Jay

----------------------------------------
> From: jay.krell at cornell.edu
> To: hosking at cs.purdue.edu; jkrell at elego.de
> Date: Wed, 7 Jul 2010 19:13:02 +0000
> CC: m3commit at elegosoft.com
> Subject: Re: [M3commit] CVS Update: cm3
>
>
> Back when all loads and stores were volatile!
> And the optimizer was severely hampered. Any optimized code I looked at was full of unnecessary code.
> Which do you prefer?
>
>  - Jay
>
> ----------------------------------------
> > From: hosking at cs.purdue.edu
> > Date: Wed, 7 Jul 2010 11:56:30 -0400
> > To: jkrell at elego.de
> > CC: m3commit at elegosoft.com
> > Subject: Re: [M3commit] CVS Update: cm3
> >
> > This is new. It used to work!
> >
> >
> > On 7 Jul 2010, at 08:20, Jay Krell wrote:
> >
> > > CVSROOT: /usr/cvs
> > > Changes by: jkrell at birch. 10/07/07 08:20:57
> > >
> > > Modified files:
> > > cm3/m3-sys/m3cc/gcc/gcc/m3cg/: parse.c
> > >
> > > Log message:
> > > partial redundancy elimination ('pre') also crashes compiling libm3/Formatter, add comment; remove all the other stuff about disabling optimizations
> >
>