LLVM 19.0.0git
Classes | Namespaces
IntEqClasses.h File Reference

Equivalence classes for small integers. More...

#include "llvm/ADT/SmallVector.h"

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class  llvm::IntEqClasses


namespace  llvm
 This is an optimization pass for GlobalISel generic memory operations.

Detailed Description

Equivalence classes for small integers.

This is a mapping of the integers 0 .. N-1 into M equivalence classes numbered 0 .. M-1.

Initially each integer has its own equivalence class. Classes are joined by passing a representative member of each class to join().

Once the classes are built, compress() will number them 0 .. M-1 and prevent further changes.

Definition in file IntEqClasses.h.