Dfa optimizations only one valueset #4399
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- For certain clazzes, do not create ValueSet but, in case of a set, use one
global set for all sets.
- For cetain clazzes, do not create separate Instances depending on context, but
create only one single instance
- Do not create ValueSets of RefValue of the same clazz, but instead create
RefValue of ValueSet, i.e., instead of
{boxed(v1), boxed(v2)}
create
boxed({v1,v2})
All these can be enabled by static fields in DFA
static boolean ONLY_ONE_VALUE_SET = false;
static boolean ONLY_ONE_INSTANCE = false;
static boolean NO_SET_OF_REFS = false;
_universe is used only to hold fields of the universe.
First time I see HelloWorld <800ms
Many calls used to be created due to many different environments, even if effects form those different environments were never used. For a simle HelloWorld, this redecues the number of calls form 965 to 546. I expect a higher reduction for larger examples.
This currently results in endless runtime of DFA due to changes to `Sequence.concat`.
There are two possible traces at this point.
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