[PATCH] D64630: [DebugInfo] Address performance regression with r364515

[Jeremy Morse via Phabricator via llvm-commits]

jmorse added a comment.

Ping -- this is the last thing (TM) blocking placeDbgValues being removed, more or less. I've edited the summary to make more sense; as a brief recap:

- D56151 <https://reviews.llvm.org/D56151> was about dropping variable locations where we couldn't guarantee that RegisterCoalescing would correctly preserve locations,
- The patch made asan builds extremely slow, and was reverted,
- This new patch re-implements the idea, avoiding those lookups.

More info in the summary.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D64630/new/

https://reviews.llvm.org/D64630