TLDR: A survey of GNNs for learned program analyses
Program analysis aims to determine if a program’s behavior complies with some specification. Commonly, program analyses need to be defined and tuned by humans. This is a costly process. Recently, machine learning methods have shown promise for probabilistically realizing a wide range of program analyses. Given the structured nature of programs, and the commonality of graph representations in program analysis, graph neural networks (GNN) offer an elegant way to represent, learn, and reason about programs and are commonly used in machine learning-based program analyses. This chapter discusses the use of GNNs for program analysis, highlighting two practical use cases: variable misuse detection and type inference.