[flang-commits] [flang] [mlir] [MLIR][OpenMP] Add `private` clause to `omp.parallel` (PR #81452)

[Sergio Afonso via flang-commits]

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@@ -1070,14 +1103,63 @@ void ParallelOp::build(OpBuilder &builder, OperationState &state,
       builder, state, /*if_expr_var=*/nullptr, /*num_threads_var=*/nullptr,
       /*allocate_vars=*/ValueRange(), /*allocators_vars=*/ValueRange(),
       /*reduction_vars=*/ValueRange(), /*reductions=*/nullptr,
-      /*proc_bind_val=*/nullptr);
+      /*proc_bind_val=*/nullptr, /*private_vars=*/ValueRange(),
+      /*privatizers=*/nullptr);
   state.addAttributes(attributes);
 }
 
+static LogicalResult verifyPrivateVarList(ParallelOp &op) {
+  auto privateVars = op.getPrivateVars();
+  auto privatizers = op.getPrivatizersAttr();
+
+  if (privateVars.empty() && (privatizers == nullptr || privatizers.empty()))
+    return success();
+
+  auto numPrivateVars = privateVars.size();
+  auto numPrivatizers = (privatizers == nullptr) ? 0 : privatizers.size();
+
+  if (numPrivateVars != numPrivatizers)
+    return op.emitError() << "inconsistent number of private variables and "
+                             "privatizer op symbols, private vars: "
+                          << numPrivateVars
+                          << " vs. privatizer op symbols: " << numPrivatizers;
+
+  for (auto privateVarInfo : llvm::zip(privateVars, privatizers)) {
----------------
skatrak wrote:

```suggestion
  for (auto privateVarInfo : llvm::zip_equal(privateVars, privatizers)) {
```

https://github.com/llvm/llvm-project/pull/81452