[flang-commits] [flang] [Flang] Avoid crash on invalid EQUIVALENCE objects (PR #215979)

[Eugene Epshteyn via flang-commits]

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@@ -212,7 +212,9 @@ void ComputeOffsetsHelper::Compute(Scope &scope) {
   for (auto &[symbol, dep] : dependents_) {
     symbol->set_offset(dep.symbol->offset() + dep.offset);
     if (const auto *block{FindCommonBlockContaining(*dep.symbol)}) {
-      symbol->get<ObjectEntityDetails>().set_commonBlock(*block);
+      if (symbol->has<ObjectEntityDetails>()) {
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eugeneepshteyn wrote:

What about using `get_if<>` ?

https://github.com/llvm/llvm-project/pull/215979