[TOSA] Don't run validation pass on non TOSA operations (#120205)

This commit ensures the validation pass is not run on operations from
other dialects. In doing so, operations from other dialects that, for
example, use types not supported by TOSA don't result in an error.

Signed-off-by: Luke Hutton <luke.hutton@arm.com>

mlir/lib/Dialect/Tosa/Transforms/TosaValidation.cpp

@@ -543,6 +543,10 @@ bool TosaValidation::isValidElementType(Type type) {
 void TosaValidation::runOnOperation() {
   configLevelAndProfile();
   getOperation().walk([&](Operation *op) {
+    if (!op->getDialect() ||
+        op->getDialect()->getNamespace() != TosaDialect::getDialectNamespace())
+      return;
+
     for (Value operand : op->getOperands()) {
       auto elementTy = getElementTypeOrSelf(operand);
       if (!isValidElementType(elementTy)) {

mlir/test/Dialect/Tosa/invalid.mlir

@@ -625,7 +625,6 @@ func.func @test_mul_invalid_shift(%arg0: tensor<13x21x3xf32>, %arg1: tensor<13x1
 func.func @test_unsupported_int64_data_type(%arg0: tensor<1x13x13x5xf32>) -> tensor<1x13x13xi64> {
   // expected-error@+1 {{'tosa.argmax' op is not profile-aligned: element type 'i64' is not legal}}
   %0 = tosa.argmax %arg0 {axis = 3 : i32} : (tensor<1x13x13x5xf32>) -> tensor<1x13x13xi64>
-  // expected-error@+1 {{'func.return' op is not profile-aligned: element type 'i64' is not legal}}
   return %0 : tensor<1x13x13xi64>
 }
 
@@ -879,4 +878,13 @@ func.func @test_mismatch_in_out_shape_logical_not(%arg0: tensor<1x21x3xi1>) -> t
   // expected-error@+1 {{'tosa.logical_not' op requires the same shape for all operands and results}}
   %0 = tosa.logical_not %arg0 : (tensor<1x21x3xi1>) -> tensor<13x21x3xi1>
   return %0 : tensor<13x21x3xi1>
-}
+}
+
+// -----
+
+// Check validate pass doesn't run on non TOSA ops
+func.func @test_non_tosa_ops() {
+  %0 = arith.constant 6 : index
+  %2 = tensor.empty(%0) : tensor<?x27xi64>
+  return
+}