llvm-project

7c946f04 - [GlobalOpt] Don't resolve aliased ifuncs with undefined resolvees. (#96220)

[GlobalOpt] Don't resolve aliased ifuncs with undefined resolvees. (#96220) Fixes https://github.com/llvm/llvm-project/issues/96197. A global alias should always point to a definition. Ifuncs are definitions, so far so good. However an ifunc may be statically resolved to a function that is declared but not defined in the translation unit. With this patch we perform static resolution if: * the resolvee is defined, else if * none of the ifunc users is a global alias