Apply git clang-format to GPU.

Some unreasonable changes reverted.

Author: vkucera

GPU/Common/GPUCommonDefAPI.h

@@ -228,5 +228,5 @@
   #define get_group_id(dim) iBlock
 #endif
 
-  // clang-format on
+    // clang-format on
 #endif

GPU/GPUTracking/Base/GPUReconstruction.h

@@ -322,12 +322,12 @@ class GPUReconstruction
   GPUConstantMem* mDeviceConstantMem = nullptr;
 
   // Settings
-  GPUSettingsEvent mEventSettings;                       // Event Parameters
-  GPUSettingsDeviceBackend mDeviceBackendSettings;       // Processing Parameters (at constructor level)
-  GPUSettingsProcessing mProcessingSettings;             // Processing Parameters (at init level)
-  GPUOutputControl mOutputControl;                       // Controls the output of the individual components
-  GPUOutputControl mInputControl;                        // Prefefined input memory location for reading standalone dumps
-  std::unique_ptr<GPUMemorySizeScalers> mMemoryScalers;  // Scalers how much memory will be needed
+  GPUSettingsEvent mEventSettings;                      // Event Parameters
+  GPUSettingsDeviceBackend mDeviceBackendSettings;      // Processing Parameters (at constructor level)
+  GPUSettingsProcessing mProcessingSettings;            // Processing Parameters (at init level)
+  GPUOutputControl mOutputControl;                      // Controls the output of the individual components
+  GPUOutputControl mInputControl;                       // Prefefined input memory location for reading standalone dumps
+  std::unique_ptr<GPUMemorySizeScalers> mMemoryScalers; // Scalers how much memory will be needed
 
   RecoStepField mRecoSteps = RecoStep::AllRecoSteps;
   RecoStepField mRecoStepsGPU = RecoStep::AllRecoSteps;

GPU/GPUTracking/DataCompression/GPUTPCCompressionTrackModel.h

@@ -102,7 +102,6 @@ class GPUTPCCompressionTrackModel
 #endif
 
  protected:
-
 #ifdef GPUCA_COMPRESSION_TRACK_MODEL_MERGER
   GPUTPCGMPropagator mProp;
   GPUTPCGMTrackParam mTrk;

GPU/GPUTracking/Global/GPUChainTracking.h

@@ -244,11 +244,11 @@ class GPUChainTracking : public GPUChain, GPUReconstructionHelpers::helperDelega
   std::unique_ptr<GPUTPCClusterStatistics> mCompressionStatistics;
 
   // Ptr to detector / calibration objects
-  std::unique_ptr<TPCFastTransform> mTPCFastTransformU;               // Global TPC fast transformation object
-  std::unique_ptr<TPCPadGainCalib> mTPCPadGainCalibU;                 // TPC gain calibration and cluster finder parameters
-  std::unique_ptr<TPCdEdxCalibrationSplines> mdEdxSplinesU;           // TPC dEdx calibration splines
-  std::unique_ptr<o2::base::MatLayerCylSet> mMatLUTU;                 // Material Lookup Table
-  std::unique_ptr<o2::trd::GeometryFlat> mTRDGeometryU;               // TRD Geometry
+  std::unique_ptr<TPCFastTransform> mTPCFastTransformU;     // Global TPC fast transformation object
+  std::unique_ptr<TPCPadGainCalib> mTPCPadGainCalibU;       // TPC gain calibration and cluster finder parameters
+  std::unique_ptr<TPCdEdxCalibrationSplines> mdEdxSplinesU; // TPC dEdx calibration splines
+  std::unique_ptr<o2::base::MatLayerCylSet> mMatLUTU;       // Material Lookup Table
+  std::unique_ptr<o2::trd::GeometryFlat> mTRDGeometryU;     // TRD Geometry
 
   std::unique_ptr<o2::tpc::ClusterNativeAccess> mClusterNativeAccess;
 

GPU/GPUTracking/Interface/GPUO2InterfaceConfiguration.h

@@ -45,7 +45,7 @@ namespace tpc
 {
 class TrackTPC;
 class Digit;
-}
+} // namespace tpc
 namespace gpu
 {
 class TPCFastTransform;

GPU/GPUTracking/Merger/GPUTPCGMMerger.h

@@ -231,8 +231,8 @@ class GPUTPCGMMerger : public GPUProcessor
   unsigned short mMemoryResOutputO2Clus;
   unsigned short mMemoryResOutputO2MC;
 
-  int mNClusters;                     // Total number of incoming clusters (from slice tracks)
-  GPUTPCGMMergedTrack* mOutputTracks; //* array of output merged tracks
+  int mNClusters;                       // Total number of incoming clusters (from slice tracks)
+  GPUTPCGMMergedTrack* mOutputTracks;   //* array of output merged tracks
   GPUTPCGMSliceTrack* mSliceTrackInfos; //* additional information for slice tracks
   int* mSliceTrackInfoIndex;
   GPUTPCGMMergedTrackHit* mClusters;

GPU/GPUTracking/Refit/GPUTrackingRefit.cxx

@@ -46,7 +46,9 @@ static constexpr int kIGNORE_ENDS = 3;
 // End IgnoreErrors
 
 #ifndef GPUCA_GPUCODE
-void GPUTrackingRefitProcessor::InitializeProcessor() {}
+void GPUTrackingRefitProcessor::InitializeProcessor()
+{
+}
 
 void GPUTrackingRefitProcessor::RegisterMemoryAllocation()
 {

GPU/GPUTracking/SliceTracker/GPUTPCNeighboursFinder.h

@@ -35,14 +35,14 @@ class GPUTPCNeighboursFinder : public GPUKernelTemplate
  public:
   MEM_CLASS_PRE()
   struct GPUSharedMemory {
-    int mNHits;   // n hits
-    float mUpDx;  // x distance to the next row
-    float mDnDx;  // x distance to the previous row
-    float mUpTx;  // normalized x distance to the next row
-    float mDnTx;  // normalized x distance to the previous row
-    int mIRow;    // row number
-    int mIRowUp;  // next row number
-    int mIRowDn;  // previous row number
+    int mNHits;  // n hits
+    float mUpDx; // x distance to the next row
+    float mDnDx; // x distance to the previous row
+    float mUpTx; // normalized x distance to the next row
+    float mDnTx; // normalized x distance to the previous row
+    int mIRow;   // row number
+    int mIRowUp; // next row number
+    int mIRowDn; // previous row number
 #if GPUCA_NEIGHBOURS_FINDER_MAX_NNEIGHUP > 0
     float mA1[GPUCA_NEIGHBOURS_FINDER_MAX_NNEIGHUP][GPUCA_GET_THREAD_COUNT(GPUCA_LB_GPUTPCNeighboursFinder)];
     float mA2[GPUCA_NEIGHBOURS_FINDER_MAX_NNEIGHUP][GPUCA_GET_THREAD_COUNT(GPUCA_LB_GPUTPCNeighboursFinder)];

GPU/GPUTracking/SliceTracker/GPUTPCRow.h

@@ -60,9 +60,9 @@ class GPUTPCRow
   friend class GPUTPCNeighboursFinder;
   friend class GPUTPCStartHitsFinder;
 
-  int mNHits;       // number of hits
-  float mX;         // X coordinate of the row
-  float mMaxY;      // maximal Y coordinate of the row
+  int mNHits;  // number of hits
+  float mX;    // X coordinate of the row
+  float mMaxY; // maximal Y coordinate of the row
   MEM_LG(GPUTPCGrid)
   mGrid; // grid of hits
 

GPU/GPUTracking/SliceTracker/GPUTPCTracker.h

@@ -93,7 +93,6 @@ class GPUTPCTracker : public GPUProcessor
     StructGPUParameters gpuParameters;  // GPU parameters
   };
 
-
 #if !defined(__OPENCL__) || defined(__OPENCLCPP__)
   GPUhdi() GPUglobalref() const GPUTPCClusterData* ClusterData() const
   {