In compiler terminology reduction in strength means-----...

MCQ

In compiler terminology reduction in strength means-----

Replacing run time computation by compile time computation

Removing loop invariant computation

Removing common subexpressions

replacing a costly operation by a relatively cheaper one

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A compiler for a high-level language that runs on one machine and produces code for a different machine is called

optimizing compiler

one pass compiler

cross compiler

multipass compiler

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MCQ

Dead-code elimination in machine code optimization refersto -----------

Removal of all labels.

Removal of values that never get used.

Removal of function which are not involved.

Removal of a module after its use.

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MCQ

Which of the following statement is false?

Flow graph is used to represent DAG.

Three address code is the input to the code generator.

The first statement of three address code is always leader of the first basic block.

Transformation of block is needed for code optimization.

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MCQ

Substitution of values for names (whose values are constants) is done in----------

Local optimization

Loop optimization

Constant folding

Strength reduction

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In analyzing the compilation of PL/I program, the term Machine independent optimization is assosiated with

creation of more optical matrix

recognition of basic elements and creation of uniform symbols

recognization of basic syntactic construction through reductionsc

use of macro-processor to produce more optimal assembly code

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Non Deterministic Finite Automata

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Compiler Design Basics

Non Deterministic Finite Automata

Lexical Analysis

Regular Expressions

Finite Automata

Syntax Analyser

Semantic Analyser

Run Time Environment

Code Generation

Code Optimization

Parsing

Transformation from NFA to DFA

Cross Compiler

Epsilon Moves

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