[m-rev.] for review: redefinition of optimization levels 4 and 5.

[Fergus Henderson]

On 26-Apr-2001, Zoltan Somogyi <zs at cs.mu.OZ.AU> wrote:
> Reorganize optimization levels 4 and 5, to use --no-lazy-code, --use-local-vars
> and --delay-construct instead of --lazy-code and --optimize-value-number.
> 
> The new meanings of those optimization levels are the following:
> 
> 	opt_level(4, _, [
> 		use_local_vars		-	bool(yes),
> 		inline_simple_threshold	-	int(8),
> 		inline_compound_threshold -	int(20),
> 		higher_order_size_limit -	int(30)
> 	]).
> 
> 	opt_level(5, _, [
> 		optimize_repeat		-	int(5),
> 		delay_construct		-	bool(yes),
> 		inline_compound_threshold -	int(100),
> 		higher_order_size_limit -	int(40)
> 	]).
> 
> compiler/options.m:
> 	Implement the new scheme for optimization levels 4 and 5.

That looks fine.

Does this mean we can nuke value numbering now?

-- 
Fergus Henderson <fjh at cs.mu.oz.au>  |  "I have always known that the pursuit
                                    |  of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh>  |     -- the last words of T. S. Garp.
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