[flang-commits] [flang] [flang][OpenMP] Make lastprivate work with reallocated variables (PR #106559)

[Tom Eccles via flang-commits]

https://github.com/tblah requested changes to this pull request.

I think something in this PR has broken firstprivate with an unallocated variable:
```
program repo
  integer, allocatable :: b

  !$omp parallel firstprivate(b)
  b = 1
  !$omp end parallel
end program
```

For me this now produces a segfault, whereas it used to work correctly before this PR. I wonder if the `if` statement we removed from copyVarHLFIR was guarding this case in firstprivate. I think the right solution is to emit the if only for firstprivate.

https://github.com/llvm/llvm-project/pull/106559