[MLIR] Apply clang-tidy fixes for readability-identifier-naming in OpenACC.cpp (NFC)

Author: joker-eph

mlir/lib/Dialect/OpenACC/IR/OpenACC.cpp

@@ -93,8 +93,8 @@ mlir::ArrayAttr addDeviceTypeAffectedOperandHelper(
     deviceTypes.push_back(
         acc::DeviceTypeAttr::get(context, acc::DeviceType::None));
 
-  for (DeviceType DT : newDeviceTypes)
-    deviceTypes.push_back(acc::DeviceTypeAttr::get(context, DT));
+  for (DeviceType dt : newDeviceTypes)
+    deviceTypes.push_back(acc::DeviceTypeAttr::get(context, dt));
 
   return mlir::ArrayAttr::get(context, deviceTypes);
 }
@@ -121,10 +121,10 @@ mlir::ArrayAttr addDeviceTypeAffectedOperandHelper(
         acc::DeviceTypeAttr::get(context, acc::DeviceType::None));
   }
 
-  for (DeviceType DT : newDeviceTypes) {
+  for (DeviceType dt : newDeviceTypes) {
     argCollection.append(arguments);
     segments.push_back(arguments.size());
-    deviceTypes.push_back(acc::DeviceTypeAttr::get(context, DT));
+    deviceTypes.push_back(acc::DeviceTypeAttr::get(context, dt));
   }
 
   return mlir::ArrayAttr::get(context, deviceTypes);
@@ -2962,10 +2962,10 @@ void acc::LoopOp::setCollapseForDeviceTypes(
     newDeviceTypes.push_back(
         acc::DeviceTypeAttr::get(context, DeviceType::None));
   } else {
-    for (DeviceType DT : effectiveDeviceTypes) {
+    for (DeviceType dt : effectiveDeviceTypes) {
       newValues.push_back(
           mlir::IntegerAttr::get(mlir::IntegerType::get(context, 64), value));
-      newDeviceTypes.push_back(acc::DeviceTypeAttr::get(context, DT));
+      newDeviceTypes.push_back(acc::DeviceTypeAttr::get(context, dt));
     }
   }