COMPILER DESIGN

Detailed explanation-1: -In software engineering, strength reduction is a compiler optimization where expensive operations are replaced with equivalent but less expensive operations.

Detailed explanation-2: -Strength reduction or reduction in strength is a technique in which we replace expensive operations with cheaper operations.

Detailed explanation-3: -2.9 Reduction in Strength: Reduction in strength replaces expensive operations by equivalent cheaper ones on the target machine.

Detailed explanation-4: -removing loop invariant computation. replacing run-time computation by compile time computation. replacing a costly operation by a relatively cheaper one. removing common sub-expressions.