SYNTAX ANALYSIS
ROLE OF THE PARSER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Directed Acyclic Graph (DAG) representation of a basic block allows ____
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Automatic detection of local common sub expressions
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Detection of induction variables
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Automatic detection of loop variant
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None of these
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Explanation:
Detailed explanation-1: -The Directed Acyclic Graph (DAG) facilitates the transformation of basic blocks. DAG is an efficient method for identifying common sub-expressions. It demonstrates how the statement’s computed value is used in subsequent statements.
Detailed explanation-2: -1 Answer. For explanation I would say: It detects local sub expression.
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