[flang-commits] [flang] [flang] Implemented a warning about contiguity of compile time constant values (PR #161084)

[Peter Klausler via flang-commits]

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@@ -799,12 +799,20 @@ Expr<Type<TypeCategory::Logical, KIND>> FoldIntrinsicFunction(
     }
   } else if (name == "is_contiguous") {
     if (args.at(0)) {
+      auto warnContiguous = [&]() {
+        if (auto source{args[0]->sourceLocation()}) {
+          context.Warn(common::UsageWarning::ConstantIsContiguous, *source,
+              "constant values constructed at compile time are likely to be contiguous"_warn_en_US);
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klausler wrote:

The text of this message isn't really actionable; what should the programmer do?

https://github.com/llvm/llvm-project/pull/161084