Stratego Optimization

The StrategoCompiler performs a number of transformations/optimizations including the following:

• Pattern match merging
• Symbol caching
• Simplification
• Desugaring

The following optimizations are supported experimentally, but implementation should be improved:

• DefinitionInlining^?
• InnermostFusion
• BuildMatchFusion

New optimizations that could beneficial

• MatchingOnlyCongruence^?
• EffectsAnalysis
• ConstantTermCaching

To measure the effect of optimizations set up

• StrategoBench^?

-- EelcoVisser - 08 Dec 2001

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• Control what kind of object files (dbg, opt, prof) are linked
  • use gcc lib as standard (is optimized O4)

• F(id,\ H(x) -> G(x,x) \, id) is equivalent to \ F(a, H(x), b) -> F(a, G(x,x), b)
• set up benchmarks and reggression tests
  • propositional formulae
  • sieve
  • note: the compiler itself is of course the real regression test although it does not cover all aspects/constructs of the language

• Make a set of benchmarks that can function as reference for optimizations

• Do effects analysis on strategy expressions; distinghuish the following effects: no effect, transformation effect, variable binding effect, failure effect

• Also inline sums of rules if they occur inside a sum

• Generate congruence definition by need in the same style as threading and distributing congruences.

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CategoryToDo^? | ToDo