[Mlir-commits] [mlir] [mlir][OpenMP] Convert omp.cancel parallel to LLVMIR (PR #137192)

[Sergio Afonso]

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@@ -1580,6 +1587,21 @@ cleanupPrivateVars(llvm::IRBuilderBase &builder,
   return success();
 }
 
+/// Returns true if the construct contains omp.cancel or omp.cancellation_point
+static bool constructIsCancellable(Operation *op) {
+  // omp.cancel must be "closely nested" so it will be visible and not inside of
+  // funcion calls. This is enforced by the verifier.
+  bool containsCancel = false;
+  op->walk([&containsCancel](Operation *child) {
+    if (mlir::isa<omp::CancelOp>(child)) {
+      containsCancel = true;
+      return WalkResult::interrupt();
+    }
+    return WalkResult::advance();
+  });
+  return containsCancel;
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skatrak wrote:

Nit: This can be simplified a bit by doing `return op->walk(...).wasInterrupted();` and remove `containsCancel`.

https://github.com/llvm/llvm-project/pull/137192