What happens in common expression elimination?
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In compiler theory, common subexpression elimination (CSE) is a compiler optimization that searches for instances of identical expressions (i.e., they all evaluate to the same value), and analyzes whether it is worthwhile replacing them with a single variable holding the computed value.
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Common subexpression elimination(CSE) is a compiler optimization technique of finding redundant expression evaluations, and replacing them with a single computation . This saves the time overhead resulted by evaluating the expression for more than once . We will have a look into this phenomenon by considering a simple code and again taking a walk through its assembly code .
Common subexpression elimination(CSE) is a compiler optimization technique of finding redundant expression evaluations, and replacing them with a single computation . This saves the time overhead resulted by evaluating the expression for more than once . We will have a look into this phenomenon by considering a simple code and again taking a walk through its assembly code .
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