✨ Add direct OpenQASM to QC translation

mlir/include/mlir/Dialect/QC/Translation/TranslateQASM3ToQC.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2023 - 2026 Chair for Design Automation, TUM
+ * Copyright (c) 2025 - 2026 Munich Quantum Software Company GmbH
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Licensed under the MIT License
+ */
+
+#pragma once
+
+#include <mlir/IR/BuiltinOps.h>
+#include <mlir/IR/MLIRContext.h>
+
+#include <iosfwd>
+#include <string>
+
+namespace mlir::qc {
+
+/**
+ * @brief Import a QASM3 program directly into the QC dialect.
+ *
+ * @details Bypasses qc::QuantumComputation: the parser produces an AST walked
+ * by an InstVisitor that emits QC dialect ops via QCProgramBuilder.
+ * Returns nullptr on failure (diagnostics written to llvm::errs()).
+ */
+[[nodiscard]] OwningOpRef<ModuleOp>
+translateQASM3ToQC(MLIRContext* context, const std::string& filename);
+
+[[nodiscard]] OwningOpRef<ModuleOp> translateQASM3ToQC(MLIRContext* context,
+                                                       std::istream& input);
+
+} // namespace mlir::qc

mlir/lib/Dialect/QC/Translation/CMakeLists.txt

@@ -9,13 +9,15 @@
 add_mlir_library(
   MLIRQCTranslation
   TranslateQuantumComputationToQC.cpp
+  TranslateQASM3ToQC.cpp
   LINK_LIBS
   MLIRArithDialect
   MLIRFuncDialect
   MLIRSCFDialect
   MLIRQCDialect
   MLIRQCProgramBuilder
-  MQT::CoreIR)
+  MQT::CoreIR
+  MQT::CoreQASM)
 
 mqt_mlir_target_use_project_options(MLIRQCTranslation)