This paper reports on the formalization and proof of soundness, using the Coq proof assistant, of an alias analysis: a static analysis that approximates the flow of pointer values. The alias analysis considered is of the points-to kind and is intraprocedural, flow-sensitive, field-sensitive, and untyped. Its soundness proof follows the general style of abstract interpretation. The analysis is designed to fit in the CompCert C verified compiler, supporting future aggressive optimizations over memory accesses.
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