Memory management optimizations#22

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jonathanvdc wants to merge 23 commits into

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memory-management-optimizations

Commits on Nov 9, 2025

Optimize ENode memory management with an optional pooling mechanism
jonathanvdc
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Refactor ENode array allocation to use dedicated delegates
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Specify type for pooled ENode acquisition in ENodePoolTest
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Enhance CommandScheduleBuilder and PatternApplier to utilize ENode pooling for improved memory management
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Add methods to acquire and fill slot and call arrays from the pool
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Refactor candidate node acquisition to use acquireUnsafe and fill slot arrays
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Optimize memory management by replacing HashMap with fixed-size arrays for slot and call buckets in ENode pool
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Update symbolArrayFrom to utilize ENode pool for memory-efficient array allocation
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Refactor CommandScheduleBuilder and PatternApplier to utilize IntRef pooling for improved memory management
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Limit IntRef pool size to 64 for improved memory management and cache locality
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Implement object pooling for SimplifiedAddCommandInstantiator to enhance memory management and reduce garbage collection overhead
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Remove unused import in PatternApplier.scala to clean up code
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Refactor MutableMachineState to replace MixedTree with EClassCall for bound variables
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Refactor ApplierOps to use bind method for variable substitution
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Introduce specialized CallTree type
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Comment out array nullification in ENode to optimize memory management
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Add AbstractPatternMatch trait and refactor PatternMatch to extend it
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Refactor PatternMatch and PatternApplier to use AbstractPatternMatch and add get method
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Extend MutableMachineState to implement AbstractPatternMatch and add methods for variable and slot retrieval
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Add searchBorrowed method to CompiledPattern for e-graph pattern matching
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Add StateBorrowingMachineEClassSearcher for efficient pattern matching in e-graphs
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Add borrowing searcher and rules for pattern matching in e-graphs
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Refactor Rules to use AbstractPatternMatch and state-borrowing rules
jonathanvdc
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