diff --git a/include/imex/Dialect/XeGPU/IR/XeGPUOps.td b/include/imex/Dialect/XeGPU/IR/XeGPUOps.td
index 3c8c9018f..b2baf565c 100644
--- a/include/imex/Dialect/XeGPU/IR/XeGPUOps.td
+++ b/include/imex/Dialect/XeGPU/IR/XeGPUOps.td
@@ -610,7 +610,7 @@ def XeGPU_CreateNbarrierOp
         DefaultValuedAttr<XeGPU_ModeAttr, "imex::xegpu::Mode::SIMT">: $mode
       );
 
-      let results = (outs Builtin_Vector: $result);
+      let results = (outs XeGPU_Nbarrier: $result);
 
       let assemblyFormat = [{
         $nbarrier_id `,` $nbarrier_role
@@ -626,7 +626,7 @@ def XeGPU_NbarrierArriveOp
       let summary = "arrive at a named barrier.";
 
       let arguments = (ins
-        Builtin_Vector: $payload
+        XeGPU_Nbarrier: $payload
       );
 
       let assemblyFormat = [{
@@ -639,7 +639,7 @@ def XeGPU_NbarrierWaitOp
       let summary = "wait for a named barrier.";
 
       let arguments = (ins
-        Builtin_Vector: $payload
+        XeGPU_Nbarrier: $payload
       );
 
       let assemblyFormat = [{
@@ -647,8 +647,8 @@ def XeGPU_NbarrierWaitOp
       }];
   }
 
-def XeGPU_CompilerHintOp
-  : XeGPU_Op<"compiler_hint", []> {
+def XeGPU_CompileHintOp
+  : XeGPU_Op<"compile_hint", []> {
       let summary = "prevents the compiler from scheduling.";
 
       let assemblyFormat = [{
diff --git a/include/imex/Dialect/XeGPU/IR/XeGPUTypes.td b/include/imex/Dialect/XeGPU/IR/XeGPUTypes.td
index b15072834..6f6f3df59 100644
--- a/include/imex/Dialect/XeGPU/IR/XeGPUTypes.td
+++ b/include/imex/Dialect/XeGPU/IR/XeGPUTypes.td
@@ -40,7 +40,7 @@ class XeGPUTypeDef<string name, string typeMnemonic,
   let mnemonic = typeMnemonic;
 }
 
-// TODO:
+// TensorDesc contains dim and element type info
 def XeGPU_TensorDesc: XeGPUTypeDef<"TensorDesc", "tensor_desc",
         [ShapedTypeInterface], "::mlir::TensorType"> {
   let summary = "TensorDesc type describing all kinds of memory and tensors scatter tensor, 1d tensor, 2d tensor, … 5d tensor";
@@ -102,4 +102,15 @@ def XeGPU_TensorDesc: XeGPUTypeDef<"TensorDesc", "tensor_desc",
   let assemblyFormat = "`<` custom<ShapeAndType>($shape, $elementType)``custom<TensorDescAttr>($memory_scope, $encoding)`>`";
 }
 
+
+def XeGPU_Nbarrier: XeGPUTypeDef<"Nbarrier", "nbarrier", [], "mlir::Type"> {
+  let summary = "!xegpu.nbarrier a custom XeGPU type representing a barrier.";
+
+  let extraClassDeclaration = [{
+    static NbarrierType get(mlir::MLIRContext *context) {
+      return Base::get(context);
+    };
+  }];
+}
+
 #endif // _XEGPU_TYPES_TD_INCLUDED_
diff --git a/lib/Conversion/GPUToSPIRV/GPUToSPIRVPass.cpp b/lib/Conversion/GPUToSPIRV/GPUToSPIRVPass.cpp
index cc35fe96c..c149f5aaa 100644
--- a/lib/Conversion/GPUToSPIRV/GPUToSPIRVPass.cpp
+++ b/lib/Conversion/GPUToSPIRV/GPUToSPIRVPass.cpp
@@ -156,6 +156,10 @@ void GPUXToSPIRVPass::runOnOperation() {
       eraseOp->erase();
     }
     target->addIllegalDialect<imex::xegpu::XeGPUDialect>();
+    typeConverter.addConversion([&](xegpu::NbarrierType type) -> ::mlir::Type {
+      auto i32Type = ::mlir::IntegerType::get(context, 32);
+      return mlir::VectorType::get(8, i32Type);
+    });
     typeConverter.addConversion(
         [&](xegpu::TensorDescType type) -> ::mlir::Type {
           auto i64Type = ::mlir::IntegerType::get(context, 64);
diff --git a/lib/Conversion/XeGPUToSPIRV/XeGPUToSPIRV.cpp b/lib/Conversion/XeGPUToSPIRV/XeGPUToSPIRV.cpp
index 86025f9ae..a4cd4e437 100644
--- a/lib/Conversion/XeGPUToSPIRV/XeGPUToSPIRV.cpp
+++ b/lib/Conversion/XeGPUToSPIRV/XeGPUToSPIRV.cpp
@@ -1066,7 +1066,7 @@ class NbarrierArriveToVCPattern : public OpConversionPattern<NbarrierArriveOp> {
   matchAndRewrite(NbarrierArriveOp op, OpAdaptor adaptor,
                   ConversionPatternRewriter &rewriter) const override {
     auto loc = op.getLoc();
-    auto payload = op.getPayload();
+    auto payload = adaptor.getPayload();
 
     std::string funcName = "llvm_genx_raw_send2_noresult_i1_v8i32";
 
@@ -1101,7 +1101,7 @@ class NbarrierWaitToVCPattern : public OpConversionPattern<NbarrierWaitOp> {
   matchAndRewrite(NbarrierWaitOp op, OpAdaptor adaptor,
                   ConversionPatternRewriter &rewriter) const override {
     auto loc = op.getLoc();
-    auto payload = op.getPayload();
+    auto payload = adaptor.getPayload();
 
     auto i8Type = rewriter.getIntegerType(8);
     auto i32Type = rewriter.getIntegerType(32);
@@ -1127,11 +1127,11 @@ class NbarrierWaitToVCPattern : public OpConversionPattern<NbarrierWaitOp> {
   }
 };
 
-class CompilerHintToVCPattern : public OpConversionPattern<CompilerHintOp> {
+class CompilerHintToVCPattern : public OpConversionPattern<CompileHintOp> {
 public:
-  using OpConversionPattern<CompilerHintOp>::OpConversionPattern;
+  using OpConversionPattern<CompileHintOp>::OpConversionPattern;
   LogicalResult
-  matchAndRewrite(CompilerHintOp op, OpAdaptor adaptor,
+  matchAndRewrite(CompileHintOp op, OpAdaptor adaptor,
                   ConversionPatternRewriter &rewriter) const override {
     auto loc = op.getLoc();
 
diff --git a/lib/Dialect/XeGPU/IR/XeGPUOps.cpp b/lib/Dialect/XeGPU/IR/XeGPUOps.cpp
index 21d083d25..225aae701 100644
--- a/lib/Dialect/XeGPU/IR/XeGPUOps.cpp
+++ b/lib/Dialect/XeGPU/IR/XeGPUOps.cpp
@@ -83,7 +83,8 @@ bool dpasSupportedTypes(mlir::Type type, bool isResult) {
     else
       return false;
   } else {
-    if (type.isF16() || type.isBF16() || type.isInteger(8))
+    if (type.isF16() || type.isBF16() || type.isInteger(16) ||
+        type.isInteger(8))
       return true;
     else
       return false;
diff --git a/test/Conversion/XeGPUToSPIRV/barrier_basic.mlir b/test/Conversion/XeGPUToSPIRV/barrier_basic.mlir
index e95c9eb78..0d72915de 100644
--- a/test/Conversion/XeGPUToSPIRV/barrier_basic.mlir
+++ b/test/Conversion/XeGPUToSPIRV/barrier_basic.mlir
@@ -24,11 +24,11 @@ module @gemm attributes {gpu.container_module} {
       xegpu.alloc_nbarrier 16
       %nbarrier_id = arith.constant 1 : i8
       %nbarrier_role = arith.constant 0 : i8
-      %payload = xegpu.create_nbarrier %nbarrier_id, %nbarrier_role {num_producers = 32 : i8, num_consumers = 32 : i8} : (i8, i8) -> vector<8xi32>
-      xegpu.nbarrier_arrive %payload : vector<8xi32>
+      %payload = xegpu.create_nbarrier %nbarrier_id, %nbarrier_role {num_producers = 32 : i8, num_consumers = 32 : i8} : (i8, i8) -> !xegpu.nbarrier
+      xegpu.nbarrier_arrive %payload : !xegpu.nbarrier
       xegpu.mfence {memory_kind = "ugm" , fence_op = "none", fence_scope = "local"}
-      xegpu.compiler_hint
-      xegpu.nbarrier_wait %payload : vector<8xi32>
+      xegpu.compile_hint
+      xegpu.nbarrier_wait %payload : !xegpu.nbarrier
       gpu.return
     }
   }
diff --git a/test/Dialect/XeGPU/IR/barrier_ops.mlir b/test/Dialect/XeGPU/IR/barrier_ops.mlir
index 079e916b4..af63fc5d6 100644
--- a/test/Dialect/XeGPU/IR/barrier_ops.mlir
+++ b/test/Dialect/XeGPU/IR/barrier_ops.mlir
@@ -17,32 +17,32 @@ func.func @create_nbarrier() {
   %nbarrier_role = arith.constant 0 : i8
   // CHECK: xegpu.create_nbarrier
   // CHECK-SAME: {num_consumers = 32 : i8, num_producers = 32 : i8}
-  // CHECK-SAME: (i8, i8) -> vector<8xi32>
+  // CHECK-SAME: (i8, i8) -> !xegpu.nbarrier
   %nbarrier = xegpu.create_nbarrier %nbarrier_id, %nbarrier_role {num_producers = 32 :i8 , num_consumers = 32 : i8}
-    : (i8, i8) -> vector<8xi32>
+    : (i8, i8) -> !xegpu.nbarrier
   return
 }
 
 // CHECK-LABEL: func @nbarrier_arrive({{.*}}) {
-func.func @nbarrier_arrive(%nbarrier : vector<8xi32>) {
+func.func @nbarrier_arrive(%nbarrier : !xegpu.nbarrier) {
   // CHECK:  xegpu.nbarrier_arrive
-  // CHECK-SAME: vector<8xi32>
-  xegpu.nbarrier_arrive %nbarrier : vector<8xi32>
+  // CHECK-SAME: !xegpu.nbarrier
+  xegpu.nbarrier_arrive %nbarrier : !xegpu.nbarrier
   return
 }
 
 // CHECK-LABEL: func @nbarrier_wait({{.*}}) {
-func.func @nbarrier_wait(%nbarrier : vector<8xi32>) {
+func.func @nbarrier_wait(%nbarrier : !xegpu.nbarrier) {
   // CHECK: xegpu.nbarrier_wait
-  // CHECK-SAME: vector<8xi32>
-  xegpu.nbarrier_wait %nbarrier : vector<8xi32>
+  // CHECK-SAME: !xegpu.nbarrier
+  xegpu.nbarrier_wait %nbarrier : !xegpu.nbarrier
   return
 }
 
-// CHECK-LABEL: func @compiler_hint({{.*}}) {
-func.func @compiler_hint() {
-  // CHECK: xegpu.compiler_hint
-  xegpu.compiler_hint
+// CHECK-LABEL: func @compile_hint({{.*}}) {
+func.func @compile_hint() {
+  // CHECK: xegpu.compile_hint
+  xegpu.compile_hint
   return
 }