[Mlir-commits] [mlir] [MLIR][OpenMP] Add the host_eval clause (PR #116048)

[Sergio Afonso]

================
@@ -444,6 +444,44 @@ class OpenMP_HintClauseSkip<
 
 def OpenMP_HintClause : OpenMP_HintClauseSkip<>;
 
+//===----------------------------------------------------------------------===//
+// Not in the spec: Clause-like structure to hold host-evaluated values.
+//===----------------------------------------------------------------------===//
+
+class OpenMP_HostEvalClauseSkip<
+    bit traits = false, bit arguments = false, bit assemblyFormat = false,
+    bit description = false, bit extraClassDeclaration = false
+  > : OpenMP_Clause<traits, arguments, assemblyFormat, description,
+                    extraClassDeclaration> {
+  let traits = [
+    BlockArgOpenMPOpInterface
+  ];
+
+  let arguments = (ins
+    Variadic<AnyType>:$host_eval_vars
+  );
+
+  let extraClassDeclaration = [{
+    unsigned numHostEvalBlockArgs() {
+      return getHostEvalVars().size();
+    }
+  }];
+
+  let description = [{
+    The optional `host_eval_vars` holds values defined outside of the region of
+    the `IsolatedFromAbove` operation for which a corresponding entry block
----------------
skatrak wrote:

I added the trait to the clause, which will have the effect that any operation including this clause will also be `IsolatedFromAbove`, unless it includes it with `OpenMP_HostEvalClauseSkip<traits = true>`.

https://github.com/llvm/llvm-project/pull/116048