'Live variable analysis' diaporamas de présentation

Lecture 11: Code Optimization

Lecture 11: Code Optimization. CS 540 George Mason University. Code Optimization. REQUIREMENTS: Meaning must be preserved (correctness) Speedup must occur on average. Work done must be worth the effort. OPPORTUNITIES: Programmer (algorithm, directives) Intermediate code Target code.

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CS 201 Compiler Construction

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Lecture 29: Control Flow Analysis 11 Apr 05

CS412/413. Introduction to Compilers Nate Nystrom. Lecture 29: Control Flow Analysis 11 Apr 05. Problem 4: Constant Folding. Compute constant variables at each program point Constant variable = variable having a constant value on all program executions

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1. Reaching Definitions

1. Reaching Definitions. Definition d of variable v : a statement d that assigns a value to v. Use of variable v : reference to value of v in an expression evaluation.

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