[llvm] [SLP] Increase UsesLimit to 64 (PR #99467)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> > https://llvm-compile-time-tracker.com/compare.php?from=da0c8b275564f814a53a5c19497669ae2d99538d&to=23a9e6da423b4c6a1fda68d3d497a32ff2b04ec0&stat=instructions:u
> 
> Looks good in general (?)

Yeah. Surprisingly it also improves the performance of clang stage2-build.


https://github.com/llvm/llvm-project/pull/99467