[mlir][Tosa] Fix attr type of out_shape for tosa.transpose_conv2d

This patch fixes attr type of out_shape, which is i64 dense array
attribute with exactly 4 elements.

- Fix description of DenseArrayMaxCt
- Add DenseArrayMinCt and move it to CommonAttrConstraints.td
- Change type of out_shape to Tosa_IntArrayAttr4

Author: CoTinker

mlir/include/mlir/Dialect/Tosa/IR/TosaOps.td

@@ -352,7 +352,7 @@ def Tosa_TransposeConv2DOp : Tosa_InferShapedTypeOp<"transpose_conv2d"> {
 
     Tosa_IntArrayAttr4:$out_pad,
     Tosa_IntArrayAttr2:$stride,
-    Tosa_IntArrayAttrUpto4:$out_shape,
+    Tosa_IntArrayAttr4:$out_shape,
     OptionalAttr<Tosa_ConvOpQuantizationAttr>:$quantization_info,
     DefaultValuedOptionalAttr<BoolAttr, "false">:$local_bound
   );

mlir/include/mlir/Dialect/Tosa/IR/TosaTypesBase.td

@@ -151,9 +151,6 @@ def Tosa_Int8Like : Tosa_TypeLike<[Tosa_Int8], "signless-integer-8-bit-like">;
 //===----------------------------------------------------------------------===//
 // Attribute predicates and classes.
 //===----------------------------------------------------------------------===//
-class DenseArrayMaxCt<int n> : AttrConstraint<
-    CPred<"::llvm::cast<::mlir::DenseArrayAttr>($_self).size() <= " # n>,
-    "with at least " # n # " elements">;
 
 def Tosa_Fp32ArrayAttr2 : ConfinedAttr<DenseF32ArrayAttr, [DenseArrayCount<2>]>;
 def Tosa_Fp32ArrayAttr3 : ConfinedAttr<DenseF32ArrayAttr, [DenseArrayCount<3>]>;

mlir/include/mlir/IR/CommonAttrConstraints.td

@@ -789,6 +789,14 @@ class DenseArrayCount<int n> : AttrConstraint<
     CPred<"::llvm::cast<::mlir::DenseArrayAttr>($_self).size() == " #n>,
     "with exactly " # n # " elements">;
 
+class DenseArrayMaxCt<int n> : AttrConstraint<
+    CPred<"::llvm::cast<::mlir::DenseArrayAttr>($_self).size() <= " # n>,
+    "with at most " # n # " elements">;
+
+class DenseArrayMinCt<int n> : AttrConstraint<
+    CPred<"::llvm::cast<::mlir::DenseArrayAttr>($_self).size() >= " # n>,
+    "with at least " # n # " elements">;
+
 class DenseArrayStrictlyPositive<DenseArrayAttrBase arrayType> : AttrConstraint<
   CPred<"::llvm::all_of(::llvm::cast<" # arrayType #">($_self).asArrayRef(), "
                         "[&](auto v) { return v > 0; })">,

mlir/test/Dialect/Tosa/invalid.mlir

@@ -526,3 +526,12 @@ func.func @test_table_io_shape_mismatch(%arg0: tensor<?x16xi16>, %arg1: tensor<6
   %0 = tosa.table %arg0, %arg1 : (tensor<?x16xi16>, tensor<6xi16>) -> tensor<?x15xi16>
   return
 }
+
+// -----
+
+// CHECK-LABEL: test_transpose_conv2d_invalid_outshape
+func.func @test_transpose_conv2d_invalid_outshape(%arg0: tensor<1x32x32x8xf32>, %arg1: tensor<16x1x1x8xf32>, %arg2: tensor<16xf32>) -> tensor<1x32x32x16xf32> {
+  // expected-error@+1 {{'tosa.transpose_conv2d' op attribute 'out_shape' failed to satisfy constraint: i64 dense array attribute with exactly 4 elements}}
+  %0 = tosa.transpose_conv2d %arg0, %arg1, %arg2 {out_pad = array<i64: 0, 0, 0, 0>, out_shape = array<i64: 1, 32, 32>, stride = array<i64: 1, 1>} : (tensor<1x32x32x8xf32>, tensor<16x1x1x8xf32>, tensor<16xf32>) -> tensor<1x32x32x16xf32>
+  return %0 : tensor<1x32x32x16xf32>
+}