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Alias analysis attempts to determine

  • A.the widths of the types declared in the program
  • B.which names may refer to the same storage location
  • C.which variables are live at each point in the program
  • D.the number of times a loop will execute at run time

Answer: B

Two names that may alias cannot be treated independently. The analysis is conservative, reporting a possible alias whenever it cannot prove the absence of one. An unproven possibility must be treated exactly as a certainty would be.

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