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Everything about Live-variable analysis

Compiler optimization

In compilers, live variable analysis is a classic data-flow analysis to calculate the variables that are live at each point in the program. A variable is live at some point if it holds a value that may be needed in the future, or equivalently if its value may be read before the next time the variable is written to. Wikipedia →

đź§­ Start here: a 6-step reading path

  1. Read the overview: Live-variable analysisA 5-minute orientation
  2. Pick up a classic book: Cartesian meditationsThe most-reprinted book on the subject
  3. Read the landmark paper: A comparison of some algorithms for live variable analysisCited 2 times
  4. Go sideways: Reaching definitionA closely related topic
  5. Go sideways: Data-flow analysisA closely related topic

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