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constant folding
(redirected from Constant propagation)

   Also found in: Wikipedia 0.07 sec.
(compiler)constant folding - A compiler optimisation technique where constant subexpressions are evaluated at compile time. This is usually only applied to built-in numerical and boolean operators whereas partial evaluation is more general in that expressions involving user-defined functions may also be evaluated at compile time.


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Front-End Optimizations--Exercise constant propagation, strength reduction, common sub-expression elimination, loop unrolling, tail recursion, and more.
These include constant propagation during timing analysis, common path pessimism removal (CPPR), as well as additional timing checks.
Additional performance-boosting PowerPC compiler optimizations include: real-number manipulations, range tracking, constant propagation, constant folding, dead code elimination, and constant operations.
 
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