Leonard Chan 58c5f50f4c Reapply "[llvm] Teach GlobalDCE about dso_local_equivalent"
Also reapply "[llvm] Teach whole program devirtualization about
relative vtables"

This reverts commit 1c604a9780fcfe92a99d539913553f0835b81de3 and
474f5efebed24547e76d022f0c5ffcc9db97ce6f.
2024-04-15 11:40:23 -07:00
..