| Class | Description | 
|---|---|
| FunctionCallGraph | |
| FunctionCallSizeInfo | Auxiliary data structure to hold function call summaries in terms
 of information about number of function calls, consistent dimensions,
 consistent sparsity, and dimension-preserving functions. | 
| InterProceduralAnalysis | This Inter Procedural Analysis (IPA) serves two major purposes:
   1) Inter-Procedure Analysis: propagate statistics from calling program into 
      functions and back into main program. | 
| IPAPass | Base class for all IPA passes. | 
| IPAPassApplyStaticAndDynamicHopRewrites | This rewrite applies static hop dag and statement block
 rewrites such as constant folding and branch removal
 in order to simplify statistic propagation. | 
| IPAPassCompressionWorkloadAnalysis | This rewrite obtains workload summaries for all hops candidates amenable for compression as a basis for
 workload-aware compression planning. | 
| IPAPassEliminateDeadCode | This rewrite eliminates unnecessary sub-DAGs that produce
 transient write outputs which are never consumed subsequently. | 
| IPAPassFlagFunctionsRecompileOnce | This rewrite marks functions with loops as recompile once
 in order to reduce recompilation overhead. | 
| IPAPassFlagNonDeterminism | |
| IPAPassForwardFunctionCalls | This rewrite forwards a function call to a function with a simple
 function call that only consumes function parameters and literals
 into the original call location. | 
| IPAPassInlineFunctions | This rewrite inlines single statement block functions, which have fewer 
 operations than an internal threshold. | 
| IPAPassPropagateReplaceLiterals | This rewrite propagates and replaces literals into functions
 in order to enable subsequent rewrites such as branch removal. | 
| IPAPassRemoveConstantBinaryOps | This rewrite identifies binary operations with constant matrices 
 such as X * ones, where ones might be created as a vector of ones
 before a loop. | 
| IPAPassRemoveUnnecessaryCheckpoints | This rewrite identifies and removes unnecessary checkpoints, i.e.,
 persisting of Spark RDDs into a given storage level. | 
| IPAPassRemoveUnusedFunctions | This rewrite identifies and removes unused functions in order
 to reduce compilation overhead and other overheads such as 
 parfor worker creation, where we construct function copies. | 
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