diff --git a/flang/lib/Lower/OpenMP.cpp b/flang/lib/Lower/OpenMP.cpp
--- a/flang/lib/Lower/OpenMP.cpp
+++ b/flang/lib/Lower/OpenMP.cpp
@@ -611,6 +611,21 @@
                std::get_if<Fortran::parser::OmpClause::Copyin>(&clause.u)) {
       // Privatisation and copyin clauses are handled elsewhere.
       continue;
+    } else if (std::get_if<Fortran::parser::OmpClause::Shared>(&clause.u)) {
+      // Shared is the default behavior in the IR, so no handling is required.
+      continue;
+    } else if (const auto &defaultClause =
+                   std::get_if<Fortran::parser::OmpClause::Default>(
+                       &clause.u)) {
+      if ((defaultClause->v.v ==
+           Fortran::parser::OmpDefaultClause::Type::Shared) ||
+          (defaultClause->v.v ==
+           Fortran::parser::OmpDefaultClause::Type::None)) {
+        // Default clause with shared or none do not require any handling since
+        // Shared is the default behavior in the IR and None is only required
+        // for semantic checks.
+        continue;
+      }
     } else if (std::get_if<Fortran::parser::OmpClause::Threads>(&clause.u)) {
       // Nothing needs to be done for threads clause.
       continue;