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Strength reduction

In compiler construction, strength reduction is a compiler optimization where expensive operations are replaced with equivalent but less expensive operations. The classic example of strength reduction converts strong multiplications inside a loop into weaker additions – something that frequently occurs in array addressing.(Cooper, Simpson & Vick 1995, p. 1)

Induction variable (orphan), Other strength reduction operations & Strength reduction example

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Induction variable (orphan)

Induction variableProcedural programming languageDeclarative languageRecursive function
4 related topics

Other strength reduction operations

Mathematical identitiesArithmetic shiftLogical shift
3 related topics

Strength reduction example

Identity matrixHoisted
2 related topics

Code analysis

Hot spot
1 related topics

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Code analysis

  • Hot spot Hot spot (computer programming)

Strength reduction example

Other strength reduction operations

Induction variable (orphan)

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Strength reduction

Nodes20
Edges19
Triples61
Avg. degree1.9
Density0.1
Components1

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Strength reduction

Top relations

related to References · 42
Strength reduction → ACM, Addison-Wesley Publishing Company, Aho, Alfred, An, Applications, April, Christopher, Cocke, Communications, Compilers, Francis, ISBN, Jeffrey, John, Jones, Keith, Ken, Kennedy, Munchnik
related to Many optimizations · 8
Strength reduction → Constants, Expressions, Instead, Recognition, Register, That, The, There
related to Other strength reduction operations · 4
Strength reduction → CPU, Operator, The, This
related to Induction variable (orphan) · 3
Strength reduction → For, In, Induction
related to Code analysis · 2
Strength reduction → For, Most
is a · 1
Strength reduction → compiler optimization where expensive operations are replaced with equivalent but less expensive operations

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Important terminology

loop strength reduction within induction variable register r8 time r2 compiler reduced r1 multiplications multiplication multiply example invariant constant incremented

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Strength reductionis acompiler optimization where expensive operations are replaced with equivalent but less expensive operations0.90text
r40instance ofso r1 can be replaced by a different induction variable0.80text
Strength reductionrelated to Code analysisMost0.60section
Strength reductionrelated to Code analysisFor0.60section
Strength reductionrelated to Induction variable (orphan)Induction0.60section
Strength reductionrelated to Induction variable (orphan)In0.60section
Strength reductionrelated to Induction variable (orphan)For0.60section
Strength reductionrelated to Many optimizationsThe0.60section
Strength reductionrelated to Many optimizationsExpressions0.60section
Strength reductionrelated to Many optimizationsConstants0.60section
Strength reductionrelated to Many optimizationsRecognition0.60section
Strength reductionrelated to Many optimizationsThere0.60section

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