## Uses of Class
org.apache.sysds.hops.rewrite.StatementBlockRewriteRule

Packages that use StatementBlockRewriteRule
org.apache.sysds.hops.rewrite

### Uses of StatementBlockRewriteRule in org.apache.sysds.hops.rewrite

Subclasses of StatementBlockRewriteRule in org.apache.sysds.hops.rewrite
`class` `MarkForLineageReuse`
`class` `RewriteCompressedReblock` Rule: Compressed Re block if config compressed.linalg is enabled, we inject compression directions after read of matrices if number of rows is above 1000 and cols at least 1.
`class` `RewriteForLoopVectorization` Rule: Simplify program structure by pulling if or else statement body out (removing the if statement block ifself) in order to allow intra-procedure analysis to propagate exact statistics.
`class` `RewriteHoistLoopInvariantOperations` Rule: Simplify program structure by hoisting loop-invariant operations out of while, for, or parfor loops.
`class` `RewriteInjectSparkLoopCheckpointing` Rule: Insert checkpointing operations for caching purposes.
`class` `RewriteMarkLoopVariablesUpdateInPlace` Rule: Mark loop variables that are only read/updated through cp left indexing for update in-place.
`class` `RewriteMergeBlockSequence` Rule: Simplify program structure by merging sequences of last-level statement blocks in order to create optimization opportunities.
`class` `RewriteRemoveEmptyBasicBlocks` Rule: Simplify program structure by removing empty last-level blocks, which may originate from the original program or due to a sequence of rewrites (e.g., checkpoint injection and subsequent IPA).
`class` `RewriteRemoveForLoopEmptySequence` Rule: Simplify program structure by removing (par)for statements iterating over an empty sequence, i.e., (par)for-loops without a single iteration.
`class` `RewriteRemoveUnnecessaryBranches` Rule: Simplify program structure by pulling if or else statement body out (removing the if statement block ifself) in order to allow intra-procedure analysis to propagate exact statistics.
`class` `RewriteSplitDagDataDependentOperators` Rule: Split Hop DAG after specific data-dependent operators.
`class` `RewriteSplitDagUnknownCSVRead` Rule: Split Hop DAG after CSV reads with unknown size.

Method parameters in org.apache.sysds.hops.rewrite with type arguments of type StatementBlockRewriteRule
`void` ProgramRewriter.`removeStatementBlockRewrite​(Class<? extends StatementBlockRewriteRule> clazz)`

Constructors in org.apache.sysds.hops.rewrite with parameters of type StatementBlockRewriteRule
`ProgramRewriter​(StatementBlockRewriteRule... rewrites)` Construct a program rewriter for a given rewrite which is passed from outside.