Add NN API delegate support for minimum and maximum ops.

PiperOrigin-RevId: 250673700

tensorflow/lite/delegates/nnapi/nnapi_delegate.cc

@@ -1380,6 +1380,22 @@ class NNAPIDelegateKernel {
           return BasicMappingFn<ANEURALNETWORKS_HASHTABLE_LOOKUP>;
         }
         break;
+      case kTfLiteBuiltinMaximum: {
+        const auto input_type = context->tensors[node->inputs->data[0]].type;
+        if (version == 1 && android_sdk_version >= kMinSdkVersionForNNAPI12 &&
+            (input_type == kTfLiteFloat32 || input_type == kTfLiteUInt8 ||
+             input_type == kTfLiteInt32)) {
+          return BasicMappingFn<ANEURALNETWORKS_MAXIMUM>;
+        }
+      } break;
+      case kTfLiteBuiltinMinimum: {
+        const auto input_type = context->tensors[node->inputs->data[0]].type;
+        if (version == 1 && android_sdk_version >= kMinSdkVersionForNNAPI12 &&
+            (input_type == kTfLiteFloat32 || input_type == kTfLiteUInt8 ||
+             input_type == kTfLiteInt32)) {
+          return BasicMappingFn<ANEURALNETWORKS_MINIMUM>;
+        }
+      } break;
       case kTfLiteBuiltinPrelu:
         if (version == 1 && android_sdk_version >= kMinSdkVersionForNNAPI12) {
           if (!IsFloatOrUint8Operator(context, node)) {

tensorflow/lite/kernels/BUILD

@@ -876,6 +876,7 @@ cc_test(
     name = "maximum_minimum_test",
     size = "small",
     srcs = ["maximum_minimum_test.cc"],
+    tags = ["tflite_nnapi"],
     deps = [
         ":builtin_ops",
         ":test_main",

tensorflow/lite/nnapi/NeuralNetworksTypes.h

@@ -90,6 +90,8 @@ enum {
   ANEURALNETWORKS_ABS = 38,
   ANEURALNETWORKS_EXP = 49,
   ANEURALNETWORKS_LOG = 60,
+  ANEURALNETWORKS_MAXIMUM = 65,
+  ANEURALNETWORKS_MINIMUM = 66,
   ANEURALNETWORKS_PAD_V2 = 69,
   ANEURALNETWORKS_PRELU = 71,
   ANEURALNETWORKS_RSQRT = 83,