Code Generation and Optimization GATE 2005 Question #7568 with Solution

GATE 2005

Compiler DesignCode Generation and OptimizationeasyMCQ1 mark

A Directed Acyclic Graph (DAG) for a basic block is primarily used to eliminate:

ALocal common subexpressions and dead codeBGlobal loop branchesCType checking errorsDStack memory frame allocation

Related Compiler Design PYQs

In bottom-up LR parsing, a 'handle' is defined as:

In a syntax tree, FOLLOW(A) for a non-terminal A contains '$' (endmarker) if:

During lexical analysis, which of the following is NOT treated as a white space character by default in ANSI C?

Which of the following parsers reads its input from left to right and produces a rightmost derivation in reverse?

Which of the following is a top-down parsing technique?

In regular expressions used for lexical analysis, the positive closure operator (+) applied to symbol 'a' (a+) is defined as:

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