Re: [tree-ssa] Tree Browser

[Daniel Berlin <dberlin at dberlin dot org>]

On Wednesday, November 27, 2002, at 03:46  PM, Pop Sébastian wrote:

> On Wed, Nov 27, 2002 at 03:27:10PM -0500, Daniel Berlin wrote:
> > On Wednesday, November 27, 2002, at 02:46  PM, Pop Sébastian wrote:
> >
> > > On Wed, Nov 27, 2002 at 08:56:21AM -0500, Diego Novillo wrote:
> > > > Out of curiosity, why 'while (24)' in browse_tree()?
> > > It was just for fun :).
> > > Is 'while (1)' the canonical way to say infinite loop?
> > > Or maybe I have to change this into a 'label+goto': this would
> > > make a good test case for the jump elimination pass :-)
> > >
> > > By the way is there any interest in the rewriting of the
> > > - jump elimination pass?
> > Yes.
> >
> > > - switch to if/binary-search pass?
> > Yes
> >
> > Did you ever include those patches i had sent you to speed it up?
> Yep, but I changed more things from then.  I have it in a local tree.
> I will send it to gcc-patches once I teach it how to deal with gimple
> stmts.
>
> (I don't remember if you sent me the patch that disables computed 
> gotos,
> but I think that's easy to rewrite it if it's missing.)
You can actually eliminate computed gotos, transforming them into 
switches.

CIL does it.
See http://www.cs.berkeley.edu/~necula/cil/index.html
> > I want to benchmark it so we can determine when to apply it.
> Yep, this could help improving code quality when used with DCE,
> (and even when we have a goto loop with an induction variable...)