llvm-project

91531f32 - [ThinLTO] Fix parsing null aliasee in alias summary (#169490)

[ThinLTO] Fix parsing null aliasee in alias summary (#169490) In https://github.com/llvm/llvm-project/commit/f8182f1aef5b6ec74cbe2c1618e759f0113921ba, we add support for printing "null" aliasee in AsmWriter, but missing support in LLParser.