feat: toy tutorial chapter 3.

Signed-off-by: jackfiled <xcrenchangjun@outlook.com>

include/hello/Ops.td

@@ -246,6 +246,8 @@ def ReshapeOp : Hello_Op<"reshape"> {
   let assemblyFormat = [{
     `(` $input `:` type($input) `)` attr-dict `to` type(results)
   }];
+
+  let hasCanonicalizer = 1;
 }
 
 //===----------------------------------------------------------------------===//
@@ -294,7 +296,7 @@ def ReturnOp : Hello_Op<"return", [Pure, HasParent<"FuncOp">,
 // TransposeOp
 //===----------------------------------------------------------------------===//
 
-def TransposeOp : Hello_Op<"transpose"> {
+def TransposeOp : Hello_Op<"transpose", [Pure]> {
   let summary = "transpose operation";
 
   let arguments = (ins F64Tensor:$input);
@@ -311,6 +313,7 @@ def TransposeOp : Hello_Op<"transpose"> {
 
   // Invoke a static verify method to verify this transpose operation.
   let hasVerifier = 1;
+  let hasCanonicalizer = 1;
 }
 
 #endif