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- Sparse_conditional_constant_propagation abstract "In computer science, sparse conditional constant propagation is an optimization frequently applied in compilers after conversion to static single assignment form (SSA). It simultaneously removes some kinds of dead code and propagates constants throughout a program. Moreover, it is strictly more powerful than applying dead code elimination and constant propagation in any order or any number of repetitions.The algorithm operates by performing abstract interpretation of the code in SSA form. During abstract interpretation, it typically uses a flat lattice of constants for values and a global environment mapping SSA variables to values in this lattice. The crux of the algorithm comes in how it handles the interpretation of branch instructions. When encountered, the condition for a branch is evaluated as best possible given the precision of the abstract values bound to variables in the condition. It may be the case that the values are perfectly precise (neither top nor bottom) and hence, abstract execution can decide in which direction to branch. If the values are not constant, or a variable in the condition is undefined, then both branch directions must be taken to remain conservative.Upon completion of the abstract interpretation, instructions which were never reached are marked as dead code. SSA variables found to have constant values may then be inlined at (propagated to) their point of use.".
- Sparse_conditional_constant_propagation wikiPageID "1836610".
- Sparse_conditional_constant_propagation wikiPageRevisionID "580135299".
- Sparse_conditional_constant_propagation hasPhotoCollection Sparse_conditional_constant_propagation.
- Sparse_conditional_constant_propagation subject Category:Compiler_optimizations.
- Sparse_conditional_constant_propagation type Abstraction100002137.
- Sparse_conditional_constant_propagation type Act100030358.
- Sparse_conditional_constant_propagation type Action100037396.
- Sparse_conditional_constant_propagation type Change100191142.
- Sparse_conditional_constant_propagation type ChangeOfState100199130.
- Sparse_conditional_constant_propagation type CompilerOptimizations.
- Sparse_conditional_constant_propagation type Event100029378.
- Sparse_conditional_constant_propagation type Improvement100248977.
- Sparse_conditional_constant_propagation type Optimization100260051.
- Sparse_conditional_constant_propagation type PsychologicalFeature100023100.
- Sparse_conditional_constant_propagation type YagoPermanentlyLocatedEntity.
- Sparse_conditional_constant_propagation comment "In computer science, sparse conditional constant propagation is an optimization frequently applied in compilers after conversion to static single assignment form (SSA). It simultaneously removes some kinds of dead code and propagates constants throughout a program. Moreover, it is strictly more powerful than applying dead code elimination and constant propagation in any order or any number of repetitions.The algorithm operates by performing abstract interpretation of the code in SSA form.".
- Sparse_conditional_constant_propagation label "Sparse conditional constant propagation".
- Sparse_conditional_constant_propagation label "疎な条件分岐を考慮した定数伝播".
- Sparse_conditional_constant_propagation label "稀疏有條件的常數傳播".
- Sparse_conditional_constant_propagation sameAs 疎な条件分岐を考慮した定数伝播.
- Sparse_conditional_constant_propagation sameAs m.05_v1p.
- Sparse_conditional_constant_propagation sameAs Q7573791.
- Sparse_conditional_constant_propagation sameAs Q7573791.
- Sparse_conditional_constant_propagation sameAs Sparse_conditional_constant_propagation.
- Sparse_conditional_constant_propagation wasDerivedFrom Sparse_conditional_constant_propagation?oldid=580135299.
- Sparse_conditional_constant_propagation isPrimaryTopicOf Sparse_conditional_constant_propagation.