[Sim] Extract common logic of ProceduralizeSim for reuse

include/circt/Dialect/Sim/SimTransforms.h

@@ -0,0 +1,44 @@
+//===- SimTransforms.h - Sim transform helpers -----------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This header declares reusable transformation helpers for the Sim dialect.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CIRCT_DIALECT_SIM_SIMTRANSFORMS_H
+#define CIRCT_DIALECT_SIM_SIMTRANSFORMS_H
+
+#include "mlir/IR/Builders.h"
+#include "llvm/ADT/ArrayRef.h"
+
+namespace circt {
+namespace sim {
+
+struct PrintProceduralizationRequest {
+  mlir::Location loc;
+  mlir::Value input;
+  mlir::Value condition;
+  mlir::Value stream;
+
+  /// Operation used for diagnostics, if any.
+  mlir::Operation *anchorOp = nullptr;
+
+  /// Operation to erase once the request has been proceduralized, if any.
+  mlir::Operation *cleanupRoot = nullptr;
+};
+
+/// Lower a list of same-clock print requests into a shared `hw.triggered`
+/// region containing `sim.proc.print` operations.
+mlir::LogicalResult proceduralizePrintsForClock(
+    mlir::OpBuilder &builder, mlir::Value clock,
+    llvm::ArrayRef<PrintProceduralizationRequest> printRequests);
+
+} // namespace sim
+} // namespace circt
+
+#endif // CIRCT_DIALECT_SIM_SIMTRANSFORMS_H