[MLIR] Update tutorial to add missing tests and bring directory paths and code snippets up to date.

[lucyrfox]

Summary

The tests referred to in Chapter 3 of the tutorial were missing from the tutorial test
directory; this adds those missing tests. This also cleans up some stale directory paths and code
snippets used throughout the tutorial.

[rriddle]

mlir/test/Examples/Toy/Ch3/transpose_transpose.toy

1

Can you add a run of -opt to each of these tests? That should match with the instructions in the .md tutorial documents.

[lucyrfox]

Add -opt flag to added tests in Ch3-7.

[lucyrfox]

This comment was removed by lucyrfox.

[lucyrfox]

Fix typo in run commands in tests.

[thakis]

Looks like you pushed a branch for this review to the repo somehow, I got this when git pulling just now:

From https://github.com/llvm/llvm-project

c196e2ca48b..21d50019ca8  master            -> origin/master

• [new branch] arcpatch-D76809_2 -> origin/arcpatch-D76809_2 71c3f57326c..92d5c1be9ee release/10.x -> origin/release/10.x

Could you remove that branch again?

[lucyrfox]

Sorry about that - am working with an unfamiliar workflow that led me to a strange place... just deleted the branch but let me know if there's still any issue.

mlir/docs/Tutorials/Toy/Ch-1.md

 ```
 
 ## The AST
 
 The AST from the above code is fairly straightforward; here is a dump of it:
 
 ```
 Module:
-  Function
-    Proto 'multiply_transpose' @test/ast.toy:5:1'
-    Args: [a, b]
+  Function 
+    Proto 'multiply_transpose' @test/Examples/Toy/Ch1/ast.toy:4:1'
+    Params: [a, b]
     Block {
       Return
-        BinOp: * @test/ast.toy:6:25
-          Call 'transpose' [ @test/ast.toy:6:10
-            var: a @test/ast.toy:6:20
+        BinOp: * @test/Examples/Toy/Ch1/ast.toy:5:25
+          Call 'transpose' [ @test/Examples/Toy/Ch1/ast.toy:5:10
+            var: a @test/Examples/Toy/Ch1/ast.toy:5:20
           ]
-          Call 'transpose' [ @test/ast.toy:6:25
-            var: b @test/ast.toy:6:35
+          Call 'transpose' [ @test/Examples/Toy/Ch1/ast.toy:5:25
+            var: b @test/Examples/Toy/Ch1/ast.toy:5:35
           ]
     } // Block
-  Function
-    Proto 'main' @test/ast.toy:9:1'
-    Args: []
+  Function 
+    Proto 'main' @test/Examples/Toy/Ch1/ast.toy:8:1'
+    Params: []
     Block {
-      VarDecl a<> @test/ast.toy:11:3
-        Literal: <2, 3>[<3>[1.000000e+00, 2.000000e+00, 3.000000e+00], <3>[4.000000e+00, 5.000000e+00, 6.000000e+00]] @test/ast.toy:11:17
-      VarDecl b<2, 3> @test/ast.toy:12:3
-        Literal: <6>[1.000000e+00, 2.000000e+00, 3.000000e+00, 4.000000e+00, 5.000000e+00, 6.000000e+00] @test/ast.toy:12:17
-      VarDecl c<> @test/ast.toy:15:3
-        Call 'multiply_transpose' [ @test/ast.toy:15:11
-          var: a @test/ast.toy:15:30
-          var: b @test/ast.toy:15:33
-        ]
-      VarDecl d<> @test/ast.toy:18:3
-        Call 'multiply_transpose' [ @test/ast.toy:18:11
-          var: b @test/ast.toy:18:30
-          var: a @test/ast.toy:18:33
-        ]
-      VarDecl e<> @test/ast.toy:21:3
-        Call 'multiply_transpose' [ @test/ast.toy:21:11
-          var: b @test/ast.toy:21:30
-          var: c @test/ast.toy:21:33
-        ]
-      VarDecl f<> @test/ast.toy:24:3
-        Call 'multiply_transpose' [ @test/ast.toy:24:11
-          Call 'transpose' [ @test/ast.toy:24:30
-            var: a @test/ast.toy:24:40
+      VarDecl a<> @test/Examples/Toy/Ch1/ast.toy:11:3
+        Literal: <2, 3>[ <3>[ 1.000000e+00, 2.000000e+00, 3.000000e+00], <3>[ 4.000000e+00, 5.000000e+00, 6.000000e+00]] @test/Examples/Toy/Ch1/ast.toy:11:11
+      VarDecl b<2, 3> @test/Examples/Toy/Ch1/ast.toy:15:3
+        Literal: <6>[ 1.000000e+00, 2.000000e+00, 3.000000e+00, 4.000000e+00, 5.000000e+00, 6.000000e+00] @test/Examples/Toy/Ch1/ast.toy:15:17
+      VarDecl c<> @test/Examples/Toy/Ch1/ast.toy:19:3
+        Call 'multiply_transpose' [ @test/Examples/Toy/Ch1/ast.toy:19:11
+          var: a @test/Examples/Toy/Ch1/ast.toy:19:30
+          var: b @test/Examples/Toy/Ch1/ast.toy:19:33
+        ]
+      VarDecl d<> @test/Examples/Toy/Ch1/ast.toy:22:3
+        Call 'multiply_transpose' [ @test/Examples/Toy/Ch1/ast.toy:22:11
+          var: b @test/Examples/Toy/Ch1/ast.toy:22:30
+          var: a @test/Examples/Toy/Ch1/ast.toy:22:33
+        ]
+      VarDecl e<> @test/Examples/Toy/Ch1/ast.toy:25:3
+        Call 'multiply_transpose' [ @test/Examples/Toy/Ch1/ast.toy:25:11
+          var: b @test/Examples/Toy/Ch1/ast.toy:25:30
+          var: c @test/Examples/Toy/Ch1/ast.toy:25:33
+        ]
+      VarDecl f<> @test/Examples/Toy/Ch1/ast.toy:28:3
+        Call 'multiply_transpose' [ @test/Examples/Toy/Ch1/ast.toy:28:11
+          Call 'transpose' [ @test/Examples/Toy/Ch1/ast.toy:28:30
+            var: a @test/Examples/Toy/Ch1/ast.toy:28:40
           ]
-          var: c @test/ast.toy:24:44
+          var: c @test/Examples/Toy/Ch1/ast.toy:28:44
         ]
     } // Block
 ```
 
 You can reproduce this result and play with the example in the
 `examples/toy/Ch1/` directory; try running `path/to/BUILD/bin/toyc-ch1
 test/Examples/Toy/Ch1/ast.toy -emit=ast`.
 
 The code for the lexer is fairly straightforward; it is all in a single header:
 `examples/toy/Ch1/include/toy/Lexer.h`. The parser can be found in
 `examples/toy/Ch1/include/toy/Parser.h`; it is a recursive descent parser. If
 you are not familiar with such a Lexer/Parser, these are very similar to the
 LLVM Kaleidoscope equivalent that are detailed in the first two chapters of the
 [Kaleidoscope Tutorial](https://llvm.org/docs/tutorial/MyFirstLanguageFrontend/LangImpl02.html).
 
 The [next chapter](Ch-2.md) will demonstrate how to convert this AST into MLIR.

mlir/docs/Tutorials/Toy/Ch-2.md

let builders = [
     // creates a declaration for `ConstantOp::build` with the given parameters.
     OpBuilder<"Builder *builder, OperationState &result, double value">
   ];
 }
 ```
 
 #### Specifying a Custom Assembly Format
 
-At this point we can generate our "Toy IR". A simplified version of the previous
-example:
+At this point we can generate our "Toy IR". For example, the following:
 
 ```toy
 # User defined generic function that operates on unknown shaped arguments.
 def multiply_transpose(a, b) {
   return transpose(a) * transpose(b);
 }
 
 def main() {
   var a<2, 3> = [[1, 2, 3], [4, 5, 6]];
   var b<2, 3> = [1, 2, 3, 4, 5, 6];
   var c = multiply_transpose(a, b);
   var d = multiply_transpose(b, a);
   print(d);
 }
 ```
 
 Results in the following IR:
 
 ```mlir
 module {
   func @multiply_transpose(%arg0: tensor<*xf64>, %arg1: tensor<*xf64>) -> tensor<*xf64> {
-    %0 = "toy.transpose"(%arg0) : (tensor<*xf64>) -> tensor<*xf64> loc("test/codegen.toy":5:10)
-    %1 = "toy.transpose"(%arg1) : (tensor<*xf64>) -> tensor<*xf64> loc("test/codegen.toy":5:25)
-    %2 = "toy.mul"(%0, %1) : (tensor<*xf64>, tensor<*xf64>) -> tensor<*xf64> loc("test/codegen.toy":5:25)
-    "toy.return"(%2) : (tensor<*xf64>) -> () loc("test/codegen.toy":5:3)
-  } loc("test/codegen.toy":4:1)
+    %0 = "toy.transpose"(%arg0) : (tensor<*xf64>) -> tensor<*xf64> loc("test/Examples/Toy/Ch2/codegen.toy":5:10)
+    %1 = "toy.transpose"(%arg1) : (tensor<*xf64>) -> tensor<*xf64> loc("test/Examples/Toy/Ch2/codegen.toy":5:25)
+    %2 = "toy.mul"(%0, %1) : (tensor<*xf64>, tensor<*xf64>) -> tensor<*xf64> loc("test/Examples/Toy/Ch2/codegen.toy":5:25)
+    "toy.return"(%2) : (tensor<*xf64>) -> () loc("test/Examples/Toy/Ch2/codegen.toy":5:3)
+  } loc("test/Examples/Toy/Ch2/codegen.toy":4:1)
   func @main() {
-    %0 = "toy.constant"() {value = dense<[[1.000000e+00, 2.000000e+00, 3.000000e+00], [4.000000e+00, 5.000000e+00, 6.000000e+00]]> : tensor<2x3xf64>} : () -> tensor<2x3xf64> loc("test/codegen.toy":9:17)
-    %1 = "toy.reshape"(%0) : (tensor<2x3xf64>) -> tensor<2x3xf64> loc("test/codegen.toy":9:3)
-    %2 = "toy.constant"() {value = dense<[1.000000e+00, 2.000000e+00, 3.000000e+00, 4.000000e+00, 5.000000e+00, 6.000000e+00]> : tensor<6xf64>} : () -> tensor<6xf64> loc("test/codegen.toy":10:17)
-    %3 = "toy.reshape"(%2) : (tensor<6xf64>) -> tensor<2x3xf64> loc("test/codegen.toy":10:3)
-    %4 = "toy.generic_call"(%1, %3) {callee = @multiply_transpose} : (tensor<2x3xf64>, tensor<2x3xf64>) -> tensor<*xf64> loc("test/codegen.toy":11:11)
-    %5 = "toy.generic_call"(%3, %1) {callee = @multiply_transpose} : (tensor<2x3xf64>, tensor<2x3xf64>) -> tensor<*xf64> loc("test/codegen.toy":12:11)
-    "toy.print"(%5) : (tensor<*xf64>) -> () loc("test/codegen.toy":13:3)
-    "toy.return"() : () -> () loc("test/codegen.toy":8:1)
-  } loc("test/codegen.toy":8:1)
-} loc("test/codegen.toy":0:0)
+    %0 = "toy.constant"() {value = dense<[[1.000000e+00, 2.000000e+00, 3.000000e+00], [4.000000e+00, 5.000000e+00, 6.000000e+00]]> : tensor<2x3xf64>} : () -> tensor<2x3xf64> loc("test/Examples/Toy/Ch2/codegen.toy":9:17)
+    %1 = "toy.reshape"(%0) : (tensor<2x3xf64>) -> tensor<2x3xf64> loc("test/Examples/Toy/Ch2/codegen.toy":9:3)
+    %2 = "toy.constant"() {value = dense<[1.000000e+00, 2.000000e+00, 3.000000e+00, 4.000000e+00, 5.000000e+00, 6.000000e+00]> : tensor<6xf64>} : () -> tensor<6xf64> loc("test/Examples/Toy/Ch2/codegen.toy":10:17)
+    %3 = "toy.reshape"(%2) : (tensor<6xf64>) -> tensor<2x3xf64> loc("test/Examples/Toy/Ch2/codegen.toy":10:3)
+    %4 = "toy.generic_call"(%1, %3) {callee = @multiply_transpose} : (tensor<2x3xf64>, tensor<2x3xf64>) -> tensor<*xf64> loc("test/Examples/Toy/Ch2/codegen.toy":11:11)
+    %5 = "toy.generic_call"(%3, %1) {callee = @multiply_transpose} : (tensor<2x3xf64>, tensor<2x3xf64>) -> tensor<*xf64> loc("test/Examples/Toy/Ch2/codegen.toy":12:11)
+    "toy.print"(%5) : (tensor<*xf64>) -> () loc("test/Examples/Toy/Ch2/codegen.toy":13:3)
+    "toy.return"() : () -> () loc("test/Examples/Toy/Ch2/codegen.toy":8:1)
+  } loc("test/Examples/Toy/Ch2/codegen.toy":8:1)
+} loc(unknown)
 ```
 
 One thing to notice here is that all of our Toy operations are printed using the
 generic assembly format. This format is the one shown when breaking down
 `toy.transpose` at the beginning of this chapter. MLIR allows for operations to
 define their own custom assembly format, either
 [declaratively](../../OpDefinitions.md#declarative-assembly-format) or
 imperatively via C++. Defining a custom assembly format allows for tailoring the

 The [declarative format](../../OpDefinitions.md#declarative-assembly-format) has
 many more interesting features, so be sure to check it out before implementing a
 custom format in C++. After beautifying the format of a few of our operations we
 now get a much more readable:
 
 ```mlir
 module {
   func @multiply_transpose(%arg0: tensor<*xf64>, %arg1: tensor<*xf64>) -> tensor<*xf64> {
-    %0 = toy.transpose(%arg0 : tensor<*xf64>) to tensor<*xf64> loc("test/codegen.toy":5:10)
-    %1 = toy.transpose(%arg1 : tensor<*xf64>) to tensor<*xf64> loc("test/codegen.toy":5:25)
-    %2 = toy.mul %0, %1 : tensor<*xf64> loc("test/codegen.toy":5:25)
-    toy.return %2 : tensor<*xf64> loc("test/codegen.toy":5:3)
-  } loc("test/codegen.toy":4:1)
+    %0 = toy.transpose(%arg0 : tensor<*xf64>) to tensor<*xf64> loc("test/Examples/Toy/Ch2/codegen.toy":5:10)
+    %1 = toy.transpose(%arg1 : tensor<*xf64>) to tensor<*xf64> loc("test/Examples/Toy/Ch2/codegen.toy":5:25)
+    %2 = toy.mul %0, %1 : tensor<*xf64> loc("test/Examples/Toy/Ch2/codegen.toy":5:25)
+    toy.return %2 : tensor<*xf64> loc("test/Examples/Toy/Ch2/codegen.toy":5:3)
+  } loc("test/Examples/Toy/Ch2/codegen.toy":4:1)
   func @main() {
-    %0 = toy.constant dense<[[1.000000e+00, 2.000000e+00, 3.000000e+00], [4.000000e+00, 5.000000e+00, 6.000000e+00]]> : tensor<2x3xf64> loc("test/codegen.toy":9:17)
-    %1 = toy.reshape(%0 : tensor<2x3xf64>) to tensor<2x3xf64> loc("test/codegen.toy":9:3)
-    %2 = toy.constant dense<[1.000000e+00, 2.000000e+00, 3.000000e+00, 4.000000e+00, 5.000000e+00, 6.000000e+00]> : tensor<6xf64> loc("test/codegen.toy":10:17)
-    %3 = toy.reshape(%2 : tensor<6xf64>) to tensor<2x3xf64> loc("test/codegen.toy":10:3)
-    %4 = toy.generic_call @multiply_transpose(%1, %3) : (tensor<2x3xf64>, tensor<2x3xf64>) -> tensor<*xf64> loc("test/codegen.toy":11:11)
-    %5 = toy.generic_call @multiply_transpose(%3, %1) : (tensor<2x3xf64>, tensor<2x3xf64>) -> tensor<*xf64> loc("test/codegen.toy":12:11)
-    toy.print %5 : tensor<*xf64> loc("test/codegen.toy":13:3)
-    toy.return loc("test/codegen.toy":8:1)
-  } loc("test/codegen.toy":8:1)
-} loc("test/codegen.toy":0:0)
+    %0 = toy.constant dense<[[1.000000e+00, 2.000000e+00, 3.000000e+00], [4.000000e+00, 5.000000e+00, 6.000000e+00]]> : tensor<2x3xf64> loc("test/Examples/Toy/Ch2/codegen.toy":9:17)
+    %1 = toy.reshape(%0 : tensor<2x3xf64>) to tensor<2x3xf64> loc("test/Examples/Toy/Ch2/codegen.toy":9:3)
+    %2 = toy.constant dense<[1.000000e+00, 2.000000e+00, 3.000000e+00, 4.000000e+00, 5.000000e+00, 6.000000e+00]> : tensor<6xf64> loc("test/Examples/Toy/Ch2/codegen.toy":10:17)
+    %3 = toy.reshape(%2 : tensor<6xf64>) to tensor<2x3xf64> loc("test/Examples/Toy/Ch2/codegen.toy":10:3)
+    %4 = toy.generic_call @multiply_transpose(%1, %3) : (tensor<2x3xf64>, tensor<2x3xf64>) -> tensor<*xf64> loc("test/Examples/Toy/Ch2/codegen.toy":11:11)
+    %5 = toy.generic_call @multiply_transpose(%3, %1) : (tensor<2x3xf64>, tensor<2x3xf64>) -> tensor<*xf64> loc("test/Examples/Toy/Ch2/codegen.toy":12:11)
+    toy.print %5 : tensor<*xf64> loc("test/Examples/Toy/Ch2/codegen.toy":13:3)
+    toy.return loc("test/Examples/Toy/Ch2/codegen.toy":8:1)
+  } loc("test/Examples/Toy/Ch2/codegen.toy":8:1)
+} loc(unknown)
 ```
 
 Above we introduce several of the concepts for defining operations in the ODS
 framework, but there are many more that we haven't had a chance to: regions,
 variadic operands, etc. Check out the
 [full specification](../../OpDefinitions.md) for more details.
 
 ## Complete Toy Example
 
-At this point we can generate our "Toy IR". A simplified version of the previous
-example:
-
-```toy
-# User defined generic function that operates on unknown shaped arguments.
-def multiply_transpose(a, b) {
-  return transpose(a) * transpose(b);
-}
-
-def main() {
-  var a<2, 3> = [[1, 2, 3], [4, 5, 6]];
-  var b<2, 3> = [1, 2, 3, 4, 5, 6];
-  var c = multiply_transpose(a, b);
-  var d = multiply_transpose(b, a);
-  print(d);
-}
-```
-
-Results in the following IR:
-
-```mlir
-module {
-  func @multiply_transpose(%arg0: tensor<*xf64>, %arg1: tensor<*xf64>) -> tensor<*xf64> {
-    %0 = toy.transpose(%arg0 : tensor<*xf64>) to tensor<*xf64> loc("test/codegen.toy":5:10)
-    %1 = toy.transpose(%arg1 : tensor<*xf64>) to tensor<*xf64> loc("test/codegen.toy":5:25)
-    %2 = toy.mul %0, %1 : tensor<*xf64> loc("test/codegen.toy":5:25)
-    toy.return %2 : tensor<*xf64> loc("test/codegen.toy":5:3)
-  } loc("test/codegen.toy":4:1)
-  func @main() {
-    %0 = toy.constant dense<[[1.000000e+00, 2.000000e+00, 3.000000e+00], [4.000000e+00, 5.000000e+00, 6.000000e+00]]> : tensor<2x3xf64> loc("test/codegen.toy":9:17)
-    %1 = toy.reshape(%0 : tensor<2x3xf64>) to tensor<2x3xf64> loc("test/codegen.toy":9:3)
-    %2 = toy.constant dense<[1.000000e+00, 2.000000e+00, 3.000000e+00, 4.000000e+00, 5.000000e+00, 6.000000e+00]> : tensor<6xf64> loc("test/codegen.toy":10:17)
-    %3 = toy.reshape(%2 : tensor<6xf64>) to tensor<2x3xf64> loc("test/codegen.toy":10:3)
-    %4 = toy.generic_call @multiply_transpose(%1, %3) : (tensor<2x3xf64>, tensor<2x3xf64>) -> tensor<*xf64> loc("test/codegen.toy":11:11)
-    %5 = toy.generic_call @multiply_transpose(%3, %1) : (tensor<2x3xf64>, tensor<2x3xf64>) -> tensor<*xf64> loc("test/codegen.toy":12:11)
-    toy.print %5 : tensor<*xf64> loc("test/codegen.toy":13:3)
-    toy.return loc("test/codegen.toy":8:1)
-  } loc("test/codegen.toy":8:1)
-} loc("test/codegen.toy":0:0)
-```
-
-You can build `toyc-ch2` and try yourself: `toyc-ch2
-test/Examples/Toy/Ch2/codegen.toy -emit=mlir -mlir-print-debuginfo`. We can also
-check our RoundTrip: `toyc-ch2 test/Examples/Toy/Ch2/codegen.toy -emit=mlir
--mlir-print-debuginfo 2> codegen.mlir` followed by `toyc-ch2 codegen.mlir
--emit=mlir`. You should also use `mlir-tblgen` on the final definition file and
-study the generated C++ code.
+We can now generate our "Toy IR". You can build `toyc-ch2` and try yourself on
+the above example: `toyc-ch2 test/Examples/Toy/Ch2/codegen.toy -emit=mlir 
+-mlir-print-debuginfo`. We can also check our RoundTrip: `toyc-ch2 
+test/Examples/Toy/Ch2/codegen.toy -emit=mlir -mlir-print-debuginfo 2> 
+codegen.mlir` followed by `toyc-ch2 codegen.mlir -emit=mlir`. You should also 
+use `mlir-tblgen` on the final definition file and study the generated C++ code.
 
 At this point, MLIR knows about our Toy dialect and operations. In the
 [next chapter](Ch-3.md), we will leverage our new dialect to implement some
 high-level language-specific analyses and transformations for the Toy language.

mlir/docs/Tutorials/Toy/Ch-3.md

 pipeline. In MLIR, the optimizations are run through a `PassManager` in a
 similar way to LLVM:
 
 ```c++
   mlir::PassManager pm(module.getContext());
   pm.addNestedPass<mlir::FuncOp>(mlir::createCanonicalizerPass());
 ```
 
-Finally, we can run `toyc-ch3 test/transpose_transpose.toy -emit=mlir -opt` and
-observe our pattern in action:
+Finally, we can run `toyc-ch3 test/Examples/Toy/Ch3/transpose_transpose.toy 
+-emit=mlir -opt` and observe our pattern in action:
 
 ```mlir
 func @transpose_transpose(%arg0: tensor<*xf64>) -> tensor<*xf64> {
   %0 = toy.transpose(%arg0 : tensor<*xf64>) to tensor<*xf64>
   toy.return %arg0 : tensor<*xf64>
 }
 ```
 

 ```tablegen
 def ReshapeConstant : NativeCodeCall<"$0.reshape(($1.getType()).cast<ShapedType>())">;
 def FoldConstantReshapeOptPattern : Pat<
   (ReshapeOp:$res (ConstantOp $arg)),
   (ConstantOp (ReshapeConstant $arg, $res))>;
 ```
 
 We demonstrate these reshape optimizations using the following
-trivialReshape.toy program:
+trivial_reshape.toy program:
 
 ```c++
 def main() {
   var a<2,1> = [1, 2];
   var b<2,1> = a;
   var c<2,1> = b;
   print(c);
 }
 ```
 
 ```mlir
 module {
   func @main() {
     %0 = toy.constant dense<[1.000000e+00, 2.000000e+00]> : tensor<2xf64>
     %1 = toy.reshape(%0 : tensor<2xf64>) to tensor<2x1xf64>
     %2 = toy.reshape(%1 : tensor<2x1xf64>) to tensor<2x1xf64>
     %3 = toy.reshape(%2 : tensor<2x1xf64>) to tensor<2x1xf64>
     toy.print %3 : tensor<2x1xf64>
     toy.return
   }
 }
 ```
 
-We can try to run `toyc-ch3 test/trivialReshape.toy -emit=mlir -opt` and observe
-our pattern in action:
+We can try to run `toyc-ch3 test/Examples/Toy/Ch3/trivial_reshape.toy -emit=mlir 
+-opt` and observe our pattern in action:
 
 ```mlir
 module {
   func @main() {
     %0 = toy.constant dense<[[1.000000e+00], [2.000000e+00]]> : tensor<2x1xf64>
     toy.print %0 : tensor<2x1xf64>
     toy.return
   }

mlir/docs/Tutorials/Toy/Ch-5.md

def PrintOp : Toy_Op<"print"> {
   // The print operation takes an input tensor to print.
   // We also allow a F64MemRef to enable interop during partial lowering.
   let arguments = (ins AnyTypeOf<[F64Tensor, F64MemRef]>:$input);
 }
 ```
 
 ## Complete Toy Example
 
-Looking back at our current working example:
+Let's take a concrete example:
 
 ```mlir
 func @main() {
   %0 = toy.constant dense<[[1.000000e+00, 2.000000e+00, 3.000000e+00], [4.000000e+00, 5.000000e+00, 6.000000e+00]]> : tensor<2x3xf64>
   %2 = toy.transpose(%0 : tensor<2x3xf64>) to tensor<3x2xf64>
   %3 = toy.mul %2, %2 : tensor<3x2xf64>
   toy.print %3 : tensor<3x2xf64>
   toy.return
func @main() {
   dealloc %1 : memref<2x3xf64>
   dealloc %0 : memref<3x2xf64>
   return
 }
 ```
 
 Here, we can see that a redundant allocation was removed, the two loop nests
 were fused, and some unnecessary `load`s were removed. You can build `toyc-ch5`
-and try yourself: `toyc-ch5 test/lowering.toy -emit=mlir-affine`. We can also
-check our optimizations by adding `-opt`.
+and try yourself: `toyc-ch5 test/Examples/Toy/Ch5/affine-lowering.mlir 
+-emit=mlir-affine`. We can also check our optimizations by adding `-opt`.
 
 In this chapter we explored some aspects of partial lowering, with the intent to
 optimize. In the [next chapter](Ch-6.md) we will continue the discussion about
 dialect conversion by targeting LLVM for code generation.

mlir/docs/Tutorials/Toy/Ch-6.md

define void @main()
   %putchar.1 = tail call i32 @putchar(i32 10)
   %4 = tail call i32 (i8*, ...) @printf(i8* nonnull dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @frmt_spec, i64 0, i64 0), double 9.000000e+00)
   %5 = tail call i32 (i8*, ...) @printf(i8* nonnull dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @frmt_spec, i64 0, i64 0), double 3.600000e+01)
   %putchar.2 = tail call i32 @putchar(i32 10)
   ret void
 }
 ```
 
-The full code listing for dumping LLVM IR can be found in `Ch6/toy.cpp` in the
-`dumpLLVMIR()` function:
+The full code listing for dumping LLVM IR can be found in 
+`examples/toy/Ch6/toy.cpp` in the `dumpLLVMIR()` function:
 
 ```c++
 
 int dumpLLVMIR(mlir::ModuleOp module) {
   // Translate the module, that contains the LLVM dialect, to LLVM IR.
   auto llvmModule = mlir::translateModuleToLLVMIR(module);
   if (!llvmModule) {
     llvm::errs() << "Failed to emit LLVM IR\n";

 3.000000 4.000000
 ```
 
 You can also play with `-emit=mlir`, `-emit=mlir-affine`, `-emit=mlir-llvm`, and
 `-emit=llvm` to compare the various levels of IR involved. Also try options like
 [`--print-ir-after-all`](../../WritingAPass.md#ir-printing) to track the
 evolution of the IR throughout the pipeline.
 
+The example code used throughout this section can be found in 
+test/Examples/Toy/Ch6/llvm-lowering.mlir.
+
 So far, we have worked with primitive data types. In the
 [next chapter](Ch-7.md), we will add a composite `struct` type.

mlir/test/Examples/Toy/Ch3/transpose_transpose.toy

+# RUN: toyc-ch3 %s -emit=mlir 2>&1 | FileCheck %s
+
+# User defined generic function that operates on unknown shaped arguments
+def transpose_transpose(x) {
+  return transpose(transpose(x));
+}
+
+def main() {
+  var a<2, 3> = [[1, 2, 3], [4, 5, 6]];
+  var b = transpose_transpose(a);
+  print(b);
+}
+
+# CHECK-LABEL: func @transpose_transpose(
+# CHECK-SAME:                           [[VAL_0:%.*]]: tensor<*xf64>) -> tensor<*xf64>
+# CHECK:         [[VAL_1:%.*]] = toy.transpose([[VAL_0]] : tensor<*xf64>) to tensor<*xf64>
+# CHECK-NEXT:    [[VAL_2:%.*]] = toy.transpose([[VAL_1]] : tensor<*xf64>) to tensor<*xf64>
+# CHECK-NEXT:    toy.return [[VAL_2]] : tensor<*xf64>
+
+# CHECK-LABEL: func @main()
+# CHECK-NEXT:    [[VAL_3:%.*]] = toy.constant dense<{{\[\[}}1.000000e+00, 2.000000e+00, 3.000000e+00], [4.000000e+00, 5.000000e+00, 6.000000e+00]]> : tensor<2x3xf64>
+# CHECK-NEXT:    [[VAL_4:%.*]] = toy.reshape([[VAL_3]] : tensor<2x3xf64>) to tensor<2x3xf64>
+# CHECK-NEXT:    [[VAL_5:%.*]] = toy.generic_call @transpose_transpose([[VAL_4]]) : (tensor<2x3xf64>) -> tensor<*xf64>
+# CHECK-NEXT:    toy.print [[VAL_5]] : tensor<*xf64>
+# CHECK-NEXT:    toy.return
 No newline at end of file

mlir/test/Examples/Toy/Ch3/trivial_reshape.toy

+# RUN: toyc-ch3 %s -emit=mlir 2>&1 | FileCheck %s
+
+def main() {
+  var a<2,1> = [1, 2];
+  var b<2,1> = a;
+  var c<2,1> = b;
+  print(c);
+}
+
+# CHECK-LABEL: func @main()
+# CHECK-NEXT:    [[VAL_0:%.*]] = toy.constant dense<[1.000000e+00, 2.000000e+00]> : tensor<2xf64>
+# CHECK-NEXT:    [[VAL_1:%.*]] = toy.reshape([[VAL_0]] : tensor<2xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    [[VAL_2:%.*]] = toy.reshape([[VAL_1]] : tensor<2x1xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    [[VAL_3:%.*]] = toy.reshape([[VAL_2]] : tensor<2x1xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    toy.print [[VAL_3]] : tensor<2x1xf64>
+# CHECK-NEXT:    toy.return
 No newline at end of file

mlir/test/Examples/Toy/Ch4/transpose_transpose.toy

+# RUN: toyc-ch4 %s -emit=mlir 2>&1 | FileCheck %s
+
+# User defined generic function that operates on unknown shaped arguments
+def transpose_transpose(x) {
+  return transpose(transpose(x));
+}
+
+def main() {
+  var a<2, 3> = [[1, 2, 3], [4, 5, 6]];
+  var b = transpose_transpose(a);
+  print(b);
+}
+
+# CHECK-LABEL: func @transpose_transpose(
+# CHECK-SAME:                           [[VAL_0:%.*]]: tensor<*xf64>) -> tensor<*xf64>
+# CHECK:         [[VAL_1:%.*]] = toy.transpose([[VAL_0]] : tensor<*xf64>) to tensor<*xf64>
+# CHECK-NEXT:    [[VAL_2:%.*]] = toy.transpose([[VAL_1]] : tensor<*xf64>) to tensor<*xf64>
+# CHECK-NEXT:    toy.return [[VAL_2]] : tensor<*xf64>
+
+# CHECK-LABEL: func @main()
+# CHECK-NEXT:    [[VAL_3:%.*]] = toy.constant dense<{{\[\[}}1.000000e+00, 2.000000e+00, 3.000000e+00], [4.000000e+00, 5.000000e+00, 6.000000e+00]]> : tensor<2x3xf64>
+# CHECK-NEXT:    [[VAL_4:%.*]] = toy.reshape([[VAL_3]] : tensor<2x3xf64>) to tensor<2x3xf64>
+# CHECK-NEXT:    [[VAL_5:%.*]] = toy.generic_call @transpose_transpose([[VAL_4]]) : (tensor<2x3xf64>) -> tensor<*xf64>
+# CHECK-NEXT:    toy.print [[VAL_5]] : tensor<*xf64>
+# CHECK-NEXT:    toy.return
 No newline at end of file

mlir/test/Examples/Toy/Ch4/trivial_reshape.toy

+# RUN: toyc-ch4 %s -emit=mlir 2>&1 | FileCheck %s
+
+def main() {
+  var a<2,1> = [1, 2];
+  var b<2,1> = a;
+  var c<2,1> = b;
+  print(c);
+}
+
+# CHECK-LABEL: func @main()
+# CHECK-NEXT:    [[VAL_0:%.*]] = toy.constant dense<[1.000000e+00, 2.000000e+00]> : tensor<2xf64>
+# CHECK-NEXT:    [[VAL_1:%.*]] = toy.reshape([[VAL_0]] : tensor<2xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    [[VAL_2:%.*]] = toy.reshape([[VAL_1]] : tensor<2x1xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    [[VAL_3:%.*]] = toy.reshape([[VAL_2]] : tensor<2x1xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    toy.print [[VAL_3]] : tensor<2x1xf64>
+# CHECK-NEXT:    toy.return
 No newline at end of file

mlir/test/Examples/Toy/Ch5/transpose_transpose.toy

+# RUN: toyc-ch5 %s -emit=mlir 2>&1 | FileCheck %s
+
+# User defined generic function that operates on unknown shaped arguments
+def transpose_transpose(x) {
+  return transpose(transpose(x));
+}
+
+def main() {
+  var a<2, 3> = [[1, 2, 3], [4, 5, 6]];
+  var b = transpose_transpose(a);
+  print(b);
+}
+
+# CHECK-LABEL: func @transpose_transpose(
+# CHECK-SAME:                           [[VAL_0:%.*]]: tensor<*xf64>) -> tensor<*xf64>
+# CHECK:         [[VAL_1:%.*]] = toy.transpose([[VAL_0]] : tensor<*xf64>) to tensor<*xf64>
+# CHECK-NEXT:    [[VAL_2:%.*]] = toy.transpose([[VAL_1]] : tensor<*xf64>) to tensor<*xf64>
+# CHECK-NEXT:    toy.return [[VAL_2]] : tensor<*xf64>
+
+# CHECK-LABEL: func @main()
+# CHECK-NEXT:    [[VAL_3:%.*]] = toy.constant dense<{{\[\[}}1.000000e+00, 2.000000e+00, 3.000000e+00], [4.000000e+00, 5.000000e+00, 6.000000e+00]]> : tensor<2x3xf64>
+# CHECK-NEXT:    [[VAL_4:%.*]] = toy.reshape([[VAL_3]] : tensor<2x3xf64>) to tensor<2x3xf64>
+# CHECK-NEXT:    [[VAL_5:%.*]] = toy.generic_call @transpose_transpose([[VAL_4]]) : (tensor<2x3xf64>) -> tensor<*xf64>
+# CHECK-NEXT:    toy.print [[VAL_5]] : tensor<*xf64>
+# CHECK-NEXT:    toy.return
 No newline at end of file

mlir/test/Examples/Toy/Ch5/trivial_reshape.toy

+# RUN: toyc-ch5 %s -emit=mlir 2>&1 | FileCheck %s
+
+def main() {
+  var a<2,1> = [1, 2];
+  var b<2,1> = a;
+  var c<2,1> = b;
+  print(c);
+}
+
+# CHECK-LABEL: func @main()
+# CHECK-NEXT:    [[VAL_0:%.*]] = toy.constant dense<[1.000000e+00, 2.000000e+00]> : tensor<2xf64>
+# CHECK-NEXT:    [[VAL_1:%.*]] = toy.reshape([[VAL_0]] : tensor<2xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    [[VAL_2:%.*]] = toy.reshape([[VAL_1]] : tensor<2x1xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    [[VAL_3:%.*]] = toy.reshape([[VAL_2]] : tensor<2x1xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    toy.print [[VAL_3]] : tensor<2x1xf64>
+# CHECK-NEXT:    toy.return
 No newline at end of file

mlir/test/Examples/Toy/Ch6/transpose_transpose.toy

+# RUN: toyc-ch6 %s -emit=mlir 2>&1 | FileCheck %s
+
+# User defined generic function that operates on unknown shaped arguments
+def transpose_transpose(x) {
+  return transpose(transpose(x));
+}
+
+def main() {
+  var a<2, 3> = [[1, 2, 3], [4, 5, 6]];
+  var b = transpose_transpose(a);
+  print(b);
+}
+
+# CHECK-LABEL: func @transpose_transpose(
+# CHECK-SAME:                           [[VAL_0:%.*]]: tensor<*xf64>) -> tensor<*xf64>
+# CHECK:         [[VAL_1:%.*]] = toy.transpose([[VAL_0]] : tensor<*xf64>) to tensor<*xf64>
+# CHECK-NEXT:    [[VAL_2:%.*]] = toy.transpose([[VAL_1]] : tensor<*xf64>) to tensor<*xf64>
+# CHECK-NEXT:    toy.return [[VAL_2]] : tensor<*xf64>
+
+# CHECK-LABEL: func @main()
+# CHECK-NEXT:    [[VAL_3:%.*]] = toy.constant dense<{{\[\[}}1.000000e+00, 2.000000e+00, 3.000000e+00], [4.000000e+00, 5.000000e+00, 6.000000e+00]]> : tensor<2x3xf64>
+# CHECK-NEXT:    [[VAL_4:%.*]] = toy.reshape([[VAL_3]] : tensor<2x3xf64>) to tensor<2x3xf64>
+# CHECK-NEXT:    [[VAL_5:%.*]] = toy.generic_call @transpose_transpose([[VAL_4]]) : (tensor<2x3xf64>) -> tensor<*xf64>
+# CHECK-NEXT:    toy.print [[VAL_5]] : tensor<*xf64>
+# CHECK-NEXT:    toy.return
 No newline at end of file

mlir/test/Examples/Toy/Ch6/trivial_reshape.toy

+# RUN: toyc-ch6 %s -emit=mlir 2>&1 | FileCheck %s
+
+def main() {
+  var a<2,1> = [1, 2];
+  var b<2,1> = a;
+  var c<2,1> = b;
+  print(c);
+}
+
+# CHECK-LABEL: func @main()
+# CHECK-NEXT:    [[VAL_0:%.*]] = toy.constant dense<[1.000000e+00, 2.000000e+00]> : tensor<2xf64>
+# CHECK-NEXT:    [[VAL_1:%.*]] = toy.reshape([[VAL_0]] : tensor<2xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    [[VAL_2:%.*]] = toy.reshape([[VAL_1]] : tensor<2x1xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    [[VAL_3:%.*]] = toy.reshape([[VAL_2]] : tensor<2x1xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    toy.print [[VAL_3]] : tensor<2x1xf64>
+# CHECK-NEXT:    toy.return
 No newline at end of file

mlir/test/Examples/Toy/Ch7/transpose_transpose.toy

+# RUN: toyc-ch7 %s -emit=mlir 2>&1 | FileCheck %s
+
+# User defined generic function that operates on unknown shaped arguments
+def transpose_transpose(x) {
+  return transpose(transpose(x));
+}
+
+def main() {
+  var a<2, 3> = [[1, 2, 3], [4, 5, 6]];
+  var b = transpose_transpose(a);
+  print(b);
+}
+
+# CHECK-LABEL: func @transpose_transpose(
+# CHECK-SAME:                           [[VAL_0:%.*]]: tensor<*xf64>) -> tensor<*xf64>
+# CHECK:         [[VAL_1:%.*]] = toy.transpose([[VAL_0]] : tensor<*xf64>) to tensor<*xf64>
+# CHECK-NEXT:    [[VAL_2:%.*]] = toy.transpose([[VAL_1]] : tensor<*xf64>) to tensor<*xf64>
+# CHECK-NEXT:    toy.return [[VAL_2]] : tensor<*xf64>
+
+# CHECK-LABEL: func @main()
+# CHECK-NEXT:    [[VAL_3:%.*]] = toy.constant dense<{{\[\[}}1.000000e+00, 2.000000e+00, 3.000000e+00], [4.000000e+00, 5.000000e+00, 6.000000e+00]]> : tensor<2x3xf64>
+# CHECK-NEXT:    [[VAL_4:%.*]] = toy.reshape([[VAL_3]] : tensor<2x3xf64>) to tensor<2x3xf64>
+# CHECK-NEXT:    [[VAL_5:%.*]] = toy.generic_call @transpose_transpose([[VAL_4]]) : (tensor<2x3xf64>) -> tensor<*xf64>
+# CHECK-NEXT:    toy.print [[VAL_5]] : tensor<*xf64>
+# CHECK-NEXT:    toy.return
 No newline at end of file

mlir/test/Examples/Toy/Ch7/trivial_reshape.toy

+# RUN: toyc-ch7 %s -emit=mlir 2>&1 | FileCheck %s
+
+def main() {
+  var a<2,1> = [1, 2];
+  var b<2,1> = a;
+  var c<2,1> = b;
+  print(c);
+}
+
+# CHECK-LABEL: func @main()
+# CHECK-NEXT:    [[VAL_0:%.*]] = toy.constant dense<[1.000000e+00, 2.000000e+00]> : tensor<2xf64>
+# CHECK-NEXT:    [[VAL_1:%.*]] = toy.reshape([[VAL_0]] : tensor<2xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    [[VAL_2:%.*]] = toy.reshape([[VAL_1]] : tensor<2x1xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    [[VAL_3:%.*]] = toy.reshape([[VAL_2]] : tensor<2x1xf64>) to tensor<2x1xf64>
+# CHECK-NEXT:    toy.print [[VAL_3]] : tensor<2x1xf64>
+# CHECK-NEXT:    toy.return
 No newline at end of file