GPU OpenCL: Workaround for some clang name mangling issues

Author: davidrohr

GPU/GPUTracking/Refit/GPUTrackingRefit.cxx

@@ -78,7 +78,7 @@ struct refitTrackTypes<TrackParCov> {
 } // anonymous namespace
 
 template <>
-GPUd() void GPUTrackingRefit::initProp<GPUTPCGMPropagator>(GPUTPCGMPropagator& prop)
+GPUd() void GPUTrackingRefit::initProp<GPUgeneric() GPUTPCGMPropagator>(GPUTPCGMPropagator& prop) // FIXME: GPUgeneric() needed to make the clang spirv output link correctly
 {
   prop.SetMaterialTPC();
   prop.SetMaxSinPhi(GPUCA_MAX_SIN_PHI);
@@ -91,7 +91,7 @@ GPUd() void GPUTrackingRefit::initProp<GPUTPCGMPropagator>(GPUTPCGMPropagator& p
 }
 
 template <>
-GPUd() void GPUTrackingRefit::initProp<const Propagator*>(const Propagator*& prop)
+GPUd() void GPUTrackingRefit::initProp<const Propagator * GPUgeneric()>(const Propagator*& prop) // FIXME: GPUgeneric() needed to make the clang spirv output link correctly
 {
   prop = mPpropagator;
 }

GPU/GPUTracking/SliceTracker/GPUTPCTrackletConstructor.cxx

@@ -585,8 +585,8 @@ GPUd() int32_t GPUTPCTrackletConstructor::FetchTracklet(GPUconstantref() MEM_GLO
 #endif // GPUCA_GPUCODE
 
 #if !defined(__OPENCL1__)
-template <>
-GPUd() int32_t GPUTPCTrackletConstructor::GPUTPCTrackletConstructorGlobalTracking<GPUTPCGlobalTracking::GPUSharedMemory>(GPUconstantref() MEM_GLOBAL(GPUTPCTracker) & GPUrestrict() tracker, GPUsharedref() GPUTPCGlobalTracking::GPUSharedMemory& sMem, MEM_LG(GPUTPCTrackParam) & GPUrestrict() tParam, int32_t row, int32_t increment, int32_t iTracklet, calink* rowHits)
+template <> // FIXME: GPUgeneric() needed to make the clang spirv output link correctly
+GPUd() int32_t GPUTPCTrackletConstructor::GPUTPCTrackletConstructorGlobalTracking<GPUgeneric() GPUTPCGlobalTracking::GPUSharedMemory>(GPUconstantref() MEM_GLOBAL(GPUTPCTracker) & GPUrestrict() tracker, GPUsharedref() GPUTPCGlobalTracking::GPUSharedMemory& sMem, MEM_LG(GPUTPCTrackParam) & GPUrestrict() tParam, int32_t row, int32_t increment, int32_t iTracklet, calink* rowHits)
 {
   GPUTPCThreadMemory rMem;
   rMem.mISH = iTracklet;