[PATCH] D25645: [ADT] Add CachedHashString.

[Justin Lebar via llvm-commits]

jlebar created this revision.
jlebar added a reviewer: timshen.
jlebar added a subscriber: llvm-commits.

This is like CachedHashStringRef, but owns its data.

This lets us use strings inside of DenseMaps.


https://reviews.llvm.org/D25645

Files:
  llvm/include/llvm/ADT/CachedHashString.h

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