Index: mlir/include/mlir/Dialect/CMakeLists.txt
===================================================================
--- mlir/include/mlir/Dialect/CMakeLists.txt
+++ mlir/include/mlir/Dialect/CMakeLists.txt
@@ -4,6 +4,7 @@
 add_subdirectory(Linalg)
 add_subdirectory(LLVMIR)
 add_subdirectory(LoopOps)
+add_subdirectory(OpenMP)
 add_subdirectory(QuantOps)
 add_subdirectory(SPIRV)
 add_subdirectory(StandardOps)
Index: mlir/include/mlir/Dialect/OpenMP/CMakeLists.txt
===================================================================
--- /dev/null
+++ mlir/include/mlir/Dialect/OpenMP/CMakeLists.txt
@@ -0,0 +1 @@
+add_mlir_dialect(OpenMPOps OpenMPOps)
Index: mlir/include/mlir/Dialect/OpenMP/OpenMPDialect.h
===================================================================
--- /dev/null
+++ mlir/include/mlir/Dialect/OpenMP/OpenMPDialect.h
@@ -0,0 +1,26 @@
+#ifndef MLIR_DIALECT_OPENMP_OPENMPDIALECT_H_
+#define MLIR_DIALECT_OPENMP_OPENMPDIALECT_H_
+
+#include "mlir/IR/Dialect.h"
+#include "mlir/IR/OpDefinition.h"
+#include "mlir/IR/FunctionSupport.h"
+#include "mlir/IR/OpImplementation.h"
+
+
+namespace mlir {
+namespace omp {
+
+#define GET_OP_CLASSES
+#include "mlir/Dialect/OpenMP/OpenMPOps.h.inc"
+
+class OpenMPDialect : public Dialect {
+public:
+  explicit OpenMPDialect(MLIRContext *context);
+
+  static StringRef getDialectNamespace() { return "omp"; }
+};
+
+} // namespace openmp
+} // namespace mlir
+
+#endif /* MLIR_DIALECT_OPENMP_OPENMPDIALECT_H_ */
Index: mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td
===================================================================
--- /dev/null
+++ mlir/include/mlir/Dialect/OpenMP/OpenMPOps.td
@@ -0,0 +1,24 @@
+#ifndef OPENMP_OPS
+#define OPENMP_OPS
+
+include "mlir/IR/OpBase.td"
+
+def OpenMP_Dialect : Dialect {
+  let name = "omp";
+}
+
+class OpenMP_Op<string mnemonic, list<OpTrait> traits = []> :
+      Op<OpenMP_Dialect, mnemonic, traits>;
+
+def BarrierOp : OpenMP_Op<"barrier"> {
+  let summary = "barrier construct";
+  let description = [{
+    The barrier construct specifies an explicit barrier at the point at which
+    the construct appears.
+  }];
+
+  let parser = [{ return success(); }];
+  let printer = [{ p << getOperationName(); }];
+}
+
+#endif //OPENMP_OPS
Index: mlir/lib/Dialect/CMakeLists.txt
===================================================================
--- mlir/lib/Dialect/CMakeLists.txt
+++ mlir/lib/Dialect/CMakeLists.txt
@@ -4,6 +4,7 @@
 add_subdirectory(Linalg)
 add_subdirectory(LLVMIR)
 add_subdirectory(LoopOps)
+add_subdirectory(OpenMP)
 add_subdirectory(QuantOps)
 add_subdirectory(SDBM)
 add_subdirectory(SPIRV)
Index: mlir/lib/Dialect/OpenMP/CMakeLists.txt
===================================================================
--- /dev/null
+++ mlir/lib/Dialect/OpenMP/CMakeLists.txt
@@ -0,0 +1,8 @@
+add_llvm_library(MLIROpenMP
+  IR/OpenMPDialect.cpp
+
+  ADDITIONAL_HEADER_DIRS
+  ${MLIR_MAIN_INCLUDE_DIR}/mlir/Dialect/OpenMP
+  )
+
+add_dependencies(MLIROpenMP MLIROpenMPOpsIncGen)
Index: mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
===================================================================
--- /dev/null
+++ mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
@@ -0,0 +1,22 @@
+#include "mlir/Dialect/OpenMP/OpenMPDialect.h"
+#include "mlir/IR/MLIRContext.h"
+#include "mlir/IR/Operation.h"
+#include "mlir/IR/OperationSupport.h"
+
+namespace mlir {
+namespace omp {
+
+OpenMPDialect::OpenMPDialect(MLIRContext *context) : Dialect("omp", context) {
+  addOperations<
+#define GET_OP_LIST
+#include "mlir/Dialect/OpenMP/OpenMPOps.cpp.inc"
+      >();
+}
+
+#define GET_OP_CLASSES
+#include "mlir/Dialect/OpenMP/OpenMPOps.cpp.inc"
+
+static DialectRegistration<OpenMPDialect> openmpDialect;
+
+} // namespace openmp
+} // namespace mlir
Index: mlir/test/Dialect/OpenMP/ops.mlir
===================================================================
--- /dev/null
+++ mlir/test/Dialect/OpenMP/ops.mlir
@@ -0,0 +1,7 @@
+// RUN: mlir-opt -verify-diagnostics %s | FileCheck %s
+
+func @omp_barrier() -> () {
+  // CHECK: omp.barrier
+  omp.barrier
+  return
+}
Index: mlir/tools/mlir-opt/CMakeLists.txt
===================================================================
--- mlir/tools/mlir-opt/CMakeLists.txt
+++ mlir/tools/mlir-opt/CMakeLists.txt
@@ -33,6 +33,7 @@
   MLIRLLVMIR
   MLIRLoopOps
   MLIRNVVMIR
+  MLIROpenMP
   MLIROptMain
   MLIRParser
   MLIRPass