[flang-commits] [flang] [Flang] Add partial support for lowering procedure pointer assignment. (PR #70461)

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@@ -1158,6 +1181,7 @@ genUserCall(Fortran::lower::PreparedActualArguments &loweredActuals,
     case PassBy::CharBoxValueAttribute:
     case PassBy::Box:
     case PassBy::BaseAddress:
+    case PassBy::BoxProcRef:
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jeanPerier wrote:

No it would lead to the same LLVM as `fir.absent !fir.ref<!fir.boxproc<() -> ()>>`. I think you need to somehow create a `fir.emboxproc %null` (createNullBoxProc) in this case instead.

https://github.com/llvm/llvm-project/pull/70461