[llvm-branch-commits] [flang] [flang][OpenMP] Add version checks for clauses (PR #110015)

[Sergio Afonso via llvm-branch-commits]

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@@ -163,6 +163,43 @@ class AssociatedLoopChecker {
   std::map<std::string, std::int64_t> constructNamesAndLevels_;
 };
 
+bool OmpStructureChecker::CheckAllowedClause(llvmOmpClause clause) {
+  unsigned version{context_.langOptions().OpenMPVersion};
+  DirectiveContext &dirCtx = GetContext();
+  llvm::omp::Directive dir{dirCtx.directive};
+
+  if (!llvm::omp::isAllowedClauseForDirective(dir, clause, version)) {
+    unsigned allowedInVersion{[&] {
+      for (unsigned v : {45, 50, 51, 52, 60}) {
+        if (v <= version) {
+          continue;
+        }
+        if (llvm::omp::isAllowedClauseForDirective(dir, clause, v)) {
+          return v;
+        }
+      }
+      return 0u;
+    }()};
+
+    auto clauseName{parser::ToUpperCaseLetters(getClauseName(clause).str())};
+    auto dirName{parser::ToUpperCaseLetters(getDirectiveName(dir).str())};
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skatrak wrote:

Nit: Perhaps move this into the `if` below to avoid evaluating it when it's not going to be needed.

https://github.com/llvm/llvm-project/pull/110015