Titlebook: Compiling Natural Semantics; Mikael Pettersson Book 1999 Springer-Verlag Berlin Heidelberg 1999 C programming language.Natural.compiler.pr

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Animesh Bahadur,Kunal Kamal Kumarby finite automata theory, addresses these problems and solves them to some extent. It does so by viewing patterns as regular expressions and optimizing the finite automaton that is built to recognize them. It also makes checking patterns for . and . cheap operations, since this information is apparent in the automaton.

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2 Preliminaries,ractical value, perhaps for a number of user categories. This chapter starts with a small section that motivates this assumption, followed by an overview of some of the formalisms that have been used for programming languages to date. It ends with a more detailed overview of our formalism of choice,

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3 The Design of RML,guage is often influenced by several different sources: intended application areas, existing languages, experiences from early implementation efforts, and experiences from attempting to (perhaps formally) specify it. Ignoring any one of these influences can lead to serious deficiencies in the langua

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7 Compiling Pattern Matching, callers use it to inspect results from successful calls. This chapter presents an algorithm for compiling term pattern-matching. Earlier algorithms may produce duplicated code, and redundant or sub-optimal discrimination tests for certain combinations of patterns. Our algorithm, which was inspired

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9 Simulating Tailcalls in C, and efficiency of the generated code, some features are difficult to express correctly, portably, and efficiently in C. One such feature is the ., which is present in most functional and logic programming languages. This chapter describes and evaluates a number of techniques for simulating tailcall

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10 Performance Evaluation,of runtime structures are described. Then the effects of different optimization levels in the . compiler are evaluated, followed by some comparisons between RML, Typol, two commercial Prolog compilers, and one commercial Pascal compiler.