[Mlir-commits] [clang] [llvm] [mlir] [mlir] Don't assume non-erased DenseMap entries remain valid after erase. NFC (PR #199365)

[Mehdi Amini]

joker-eph wrote:

> The algorithm change that drops lazy deletion (tombstone) for TAOCP Algorithm 6.4R, relocating surviving entries to fill the hole/gap.

Right, this is what I twas asking about: updating the code by adding extra copies in MLIR should come with the end-game plan to justify it. 
Is the PR up for this?

(thanks for improving LLVM core data structure!)

https://github.com/llvm/llvm-project/pull/199365