Please cherry-pick rG41206b61e30c into the release-10 branch #44159
Description
| Bugzilla Link | 44814 |
| Resolution | FIXED |
| Resolved on | Feb 12, 2020 05:10 |
| Version | 10.0 |
| OS | Linux |
| Blocks | #43900 #44227 |
| CC | @gregbedwell,@zmodem,@pogo59 |
Extended Description
Hi Hans,
Could you please cherry pick rG41206b61e30c into the release-10 branch. This cleanly cherry-picks and passes check-llvm on amd64 Ubuntu 18. The patch fixes a performance regression where in certain circumstances, debugging information could grow quadratically with the size of a basic block. This behaviour was introduced in llvm 9, it'd be great to fix it for llvm 10.