[flang-commits] [flang] [flang][OpenMP] Fix privatization of threadprivate common block (PR #77821)

[Kiran Chandramohan via flang-commits]

https://github.com/kiranchandramohan approved this pull request.

In general, having symbols created correctly helps the frontend perform semantic checks accurately. Originally, it was also supposed to help lowering, but at some point lowering started using nested symbol tables instead of relying on separate symbols per region. I cant think of anything that we might fail to catch.

The patch definitely looks simpler than https://reviews.llvm.org/D145684 and we can go ahead with it.

https://github.com/llvm/llvm-project/pull/77821