Homework: Reading questions

Submit two items to the submission website (see link in the navigation bar at the top of the page):

Submit your own question about the paper (e.g., what you find most confusing about the paper or the paper's general context/problem), before lecture (i.e., 1pm). You cannot use the question below. To the extent possible, during lecture we will try to answer questions submitted beforehand.
Submit your answer for the question below, before the beginning of the lecture.

Answer the following question:

Section 2 discusses different specifications that a compiler might have (definitions 1, 2, and 3). Think of an example of a program and its compilation that satisfies definition 3 but not 2, and an example of a program and its compilation that satisfies definition 2 but not 1.

Are there properties that you might want from a compiler that are not captured by definition 2?

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