Auto merge of #41739 - TimNN:update-llvm, r=aturon
Auto merge of #41739 - TimNN:update-llvm, r=aturon

Update llvm to pull in various backports

Fixes #41672
Fixes #41630
Fixes #41685

GBGamer/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust,GBGamer/rust,graydon/rust,GBGamer/rust,GBGamer/rust,aidancully/rust,GBGamer/rust,graydon/rust,graydon/rust,aidancully/rust,GBGamer/rust,aidancully/rust,aidancully/rust,graydon/rust,GBGamer/rust,GBGamer/rust