[flang-commits] [PATCH] D140143: [flang] Prevent crash in error case: elemental with alternate return

[Peter Klausler via Phabricator via flang-commits]

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When an ELEMENTAL subroutine is erroneously declared with alternate return
arguments, don't crash when checking the ranks of the actual arguments.


https://reviews.llvm.org/D140143

Files:
  flang/lib/Semantics/check-call.cpp


Index: flang/lib/Semantics/check-call.cpp
===================================================================
--- flang/lib/Semantics/check-call.cpp
+++ flang/lib/Semantics/check-call.cpp
@@ -891,7 +891,7 @@
   int index{0};
   bool hasArrayArg{false};
   for (const auto &arg : actuals) {
-    if (arg && arg.value().Rank() > 0) {
+    if (arg && !arg->isAlternateReturn() && arg->Rank() > 0) {
       hasArrayArg = true;
       break;
     }


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