[llvm] [IR] Implementation and lowering of bitinsert and bitextract (PR #200605)

[Pedro Lobo via llvm-commits]

pedroclobo wrote:

> Maybe worth having a few lines in ReleaseNotes.md for this change.

Added a line to the release notes in c801a8a35924.



https://github.com/llvm/llvm-project/pull/200605