[flang-commits] [flang] [flang][debug] Handle allocatable strings. (PR #95906)

[Abid Qadeer via flang-commits]

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@@ -205,16 +205,38 @@ mlir::LLVM::DITypeAttr DebugTypeGenerator::convertCharacterType(
   if (charTy.getFKind() != 1)
     encoding = llvm::dwarf::DW_ATE_UCS;
 
+  uint64_t sizeInBits = 0;
+  mlir::LLVM::DIExpressionAttr lenExpr = nullptr;
+  mlir::LLVM::DIExpressionAttr locExpr = nullptr;
+
+  if (allocatable) {
+    llvm::SmallVector<mlir::LLVM::DIExpressionElemAttr> ops;
+    auto addOp = [&](unsigned opc, llvm::ArrayRef<uint64_t> vals) {
+      ops.push_back(mlir::LLVM::DIExpressionElemAttr::get(context, opc, vals));
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abidh wrote:

This look concise. I tired to use it but it gives build error. It may be that we are calling `DIExpressionElemAttr::get` and not its constructor so `emplace_back` would not work.

https://github.com/llvm/llvm-project/pull/95906