[flang-commits] [flang] [mlir] [flang] Add debug information for module variables. (PR #91582)

[Kiran Chandramohan via flang-commits]

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@@ -1030,10 +1030,15 @@ LogicalResult ModuleTranslation::convertGlobals() {
       llvm::DIGlobalVariable *diGlobalVar = diGlobalExpr->getVariable();
       var->addDebugInfo(diGlobalExpr);
 
+      // For fortran, the scope hierarchy can be
+      // variable -> module -> compile unit
+      llvm::DIScope *scope = diGlobalVar->getScope();
+      if (llvm::DIModule *mod = dyn_cast_if_present<llvm::DIModule>(scope))
+        scope = mod->getScope();
+
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kiranchandramohan wrote:

Changes to MLIR should go in as a separate patch. And a test is required for the MLIR changes in I guess `mlir/test/Target/LLVMIR/llvmir-debug.mlir`.

https://github.com/llvm/llvm-project/pull/91582