[flang-commits] [flang] [flang][cuda] Preserve array lower bounds in implicit device-to-host transfer (PR #227824)

[via flang-commits]

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@@ -5694,9 +5557,32 @@ class FirConverter : public Fortran::lower::AbstractConverter {
             else
               temps.push_back(temp);
           }
-          addSymbol(sym,
-                    hlfir::translateToExtendedValue(loc, builder, temp).first,
-                    /*forced=*/true);
+
+          // Translate the temporary to an ExtendedValue and rebind it with
+          // the original lower bounds.  fir::updateRuntimeLBounds covers all
+          // array representations (ArrayBoxValue, BoxValue, MutableBoxValue,
+          // CharArrayBoxValue) while preserving the temp's storage/extents and
+          // dropping the CUDA device data attribute.
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jeanPerier wrote:

nit: same here, the first sentence is sufficient.

https://github.com/llvm/llvm-project/pull/227824