llvm-project

5129b3c4 - [BOLT] Make FoldedIntoFunction always point to root parent (#180855)

[BOLT] Make FoldedIntoFunction always point to root parent (#180855) After ICF folds functions, FoldedIntoFunction may point to a function that was also folded. Add a post-processing step at the end of ICF to flatten all chains so FoldedIntoFunction always points to the ultimate root parent (a function that is not itself folded).