By Jens Knoop

Starting from the intraprocedural uncomplicated case, this monograph specializes in interprocedural optimization. It emphasizes the analogies and crucial ameliorations among intraprocedural and interprocedural optimization, and gives cookbook type aid for developing the underlying algorithms. it truly is geared toward compiler constructors and researchers drawn to the systematic move of intraprocedural optimizations to the interprocedural atmosphere, in addition to scholars looking a steady creation to the field.

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A transformation Tr ∈ T is O ≤T -optimal, if for all Tr ∈ T holds: GTr ≤T GTr 12 In general, ≤T will be a pre-order. 3 A Cookbook for “Intraprocedural Optimization” 27 Fixing the Optimal Program Transformation. Next, the (optimal) program transformation must be defined. : Define . . 4. the program transformation Tr opt of interest in terms of a subset ΦT ⊆ Φ Subsequently, we have to prove that Tr opt is a member of the transformation class under consideration and satisfies the optimality criterion of interest.

Based on the technique of accompanying parameters of [La2], there is an effective procedure that transforms an Algol-like program with a regular formal call tree into a formally equivalent Algol-like program without statically nested procedures [Ol1]. 12 Summarizing, the advantages of focusing IDFA on sfmr-programs are as follows: 1. HO-DFA can be organized as a preprocess which can be hidden from IDFA: Formal procedure calls do not affect the construction and the efficiency of IDFA-applications. 2.

Insert CM (pi ) ∧ Transp ∀ ( p[i, λp [ ) In the intraprocedural setting, there is no difference between safety and strong safety. 2 Intraprocedural Code Motion Transformations 35 safety and strong safety. The converse implication is essentially a consequence of the fact that we are only considering nondeterministic branching, which makes the set of all paths in G a regular set. , by every path in PG [n, e]. In particular, each path violating the up-safety condition at a node n, can be linked to every path violating the down-safety condition at this node.

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Optimal Interprocedural Program Optimization: A New by Jens Knoop
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