diff --git a/mlir/include/mlir/Dialect/Tosa/IR/TosaTypesBase.td b/mlir/include/mlir/Dialect/Tosa/IR/TosaTypesBase.td
--- a/mlir/include/mlir/Dialect/Tosa/IR/TosaTypesBase.td
+++ b/mlir/include/mlir/Dialect/Tosa/IR/TosaTypesBase.td
@@ -47,11 +47,22 @@
 def Tosa_Int48 : I<48>;
 def Tosa_Int64 : I<64>;
 
+def Tosa_SInt8 : SI<8>;
+def Tosa_SInt16 : SI<16>;
+def Tosa_SInt32 : SI<32>;
+def Tosa_SInt48 : SI<48>;
+def Tosa_SInt64 : SI<64>;
+
 def Tosa_SignedInt : AnyTypeOf<[Tosa_Int8,
                                 Tosa_Int16,
                                 Tosa_Int32,
                                 Tosa_Int48,
-                                Tosa_Int64]>;
+                                Tosa_Int64,
+                                Tosa_SInt8,
+                                Tosa_SInt16,
+                                Tosa_SInt32,
+                                Tosa_SInt48,
+                                Tosa_SInt64]>;
 
 def Tosa_Bool : I<1>;
 
@@ -62,6 +73,8 @@
                           Tosa_SignedInt]>;
 
 def Tosa_Int32Or64 : AnyTypeOf<[Tosa_Int32,
+                                Tosa_SInt32,
+                                Tosa_SInt64,
                    	        Tosa_Int64]>;
 
 //===----------------------------------------------------------------------===//
diff --git a/mlir/test/Conversion/TosaToTensor/tosa-to-tensor.mlir b/mlir/test/Conversion/TosaToTensor/tosa-to-tensor.mlir
--- a/mlir/test/Conversion/TosaToTensor/tosa-to-tensor.mlir
+++ b/mlir/test/Conversion/TosaToTensor/tosa-to-tensor.mlir
@@ -250,7 +250,7 @@
 // CHECK-LABEL: @concat_axis_dyn
 // CHECK-SAME: (%[[ARG0:[0-9a-zA-Z_]*]]:
 // CHECK-SAME:  %[[ARG1:[0-9a-zA-Z_]*]]:
-func.func @concat_axis_dyn(%arg0: tensor<?x3xf32>, %arg1: tensor<?x3xf32>) -> () {
+func.func @concat_axis_dyn(%arg0: tensor<?x3xsi8>, %arg1: tensor<?x3xsi8>) -> () {
   // CHECK: %[[AXIS:.+]] = arith.constant 0
   // CHECK: %[[STRIDE:.+]]   = arith.constant 1
   // CHECK: %[[OFFSET:.+]] = arith.constant 0 : index
@@ -259,12 +259,12 @@
   // CHECK: %[[IDX0_2:.+]] = arith.constant 0 : index
   // CHECK: %[[DYN:.+]] = tensor.dim %[[ARG0]], %[[IDX0_2]]
   // CHECK: %[[IDX1:.+]] = arith.constant 1 : index
-  // CHECK: %[[INIT:.+]] = tensor.empty(%[[DYN]]) : tensor<?x3xf32>
+  // CHECK: %[[INIT:.+]] = tensor.empty(%[[DYN]]) : tensor<?x3xsi8>
   // CHECK: %[[DYN1:.+]] = tensor.dim %[[ARG0]], %[[AXIS]]
   // CHECK: %[[INSERT0:.+]] = tensor.insert_slice %[[ARG0]] into %[[INIT]][0, 0] [%[[DYN1]], 3] [1, 1]
   // CHECK: %[[SUM:.+]]  = arith.addi %[[OFFSET]], %[[DYN1]]
   // CHECK: %[[DYN2:.+]] = tensor.dim %[[ARG1]], %[[AXIS]]
   // CHECK: %[[INSERT1:.+]] = tensor.insert_slice %[[ARG1]] into %[[INSERT0]][%[[SUM]], 0] [%[[DYN2]], 3] [1, 1]
-  %0 = "tosa.concat"(%arg0, %arg1) { axis = 0 : i64} : (tensor<?x3xf32>, tensor<?x3xf32>)  -> (tensor<?x3xf32>)
+  %0 = "tosa.concat"(%arg0, %arg1) { axis = 0 : i64} : (tensor<?x3xsi8>, tensor<?x3xsi8>)  -> (tensor<?x3xsi8>)
   return
 }