Question: The Abstract-Syntax Trees (ASTs), Three-Address Code (3AC), and Control-Flow Graphs (CFGs), are intermediate representations of a source program. Why might a compiler use all three

The Abstract-Syntax Trees (ASTs), Three-Address Code (3AC), and Control-Flow Graphs (CFGs), are intermediate representations of a source program. Why might a compiler use all three of these IRs in sequence? What is a benefit of each of these IRs?

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