Machine Independent Code Optimization | Compiler Design

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code optimization techniques || machine independent code optimization || loop jamming || loop unrolling || strength reduction || aljebraic simplification || dead code elimination || code optimization technique in compiler design || code optimisation || Machine Independent Optimization || Variable Propagation || Code Motion || Induction Variable || Common Subexpression elimination || Copy Propagation || Algebraic expression simplification || Redundancy Elimination || loop optimization in compiler design

Machine Independent code optimization aims to improve the efficiency of intermediate code by transforming code sections that don't involve hardware components like CPU registers or absolute memory locations. It eliminates redundancies, reduces lines, eliminates useless code, and reduces the frequency of repeated code. Common subexpression elimination, constant folding, constant propagation, dead code elimination, and copy propagation are techniques used to optimize code.
Loop optimization is necessary to get an optimal and efficient code, as it determines the time complexity of the program. To apply loop optimization, control flow analysis and a program flow graph are used. A cycle in a program flow graph indicates the presence of a loop, but identifying loops in a three-address format is difficult.

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