[PATCH] D117115: [llvm][ADT] Implement `BitVector::{pop_,}back`

[Jan Svoboda via Phabricator via llvm-commits]

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LLVM Programmer’s Manual strongly discourages the use of `std::vector<bool>` and suggests `llvm::BitVector` as a possible replacement.

Currently, some users of `std::vector<bool>` cannot switch to `llvm::BitVector` because it doesn't implement the `pop_back()` and `back()` functions.

To enable easy transition of `std::vector<bool>` users, this patch implements `llvm::BitVector::pop_back()` and `llvm::BitVector::back()`.

Depends on D117114 <https://reviews.llvm.org/D117114>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D117115

Files:
  llvm/include/llvm/ADT/BitVector.h
  llvm/include/llvm/ADT/SmallBitVector.h
  llvm/unittests/ADT/BitVectorTest.cpp

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