[GCC11] HeterogeneousCore/CUDAUtilities: array subscript is partly outside array bounds

[iarspider]

Build of HeterogeneousCore/CUDAUtilities fails with GCC11:

/data/cmsbld/jenkins/workspace/build-any-ib/w/tmp/BUILDROOT/e9c933c3dc3076293cddde4dd702cd2f/opt/cmssw/slc7_amd64_gcc11/cms/cmssw/CMSSW_12_1_X_2021-08-16-1100/src/HeterogeneousCore/CUDAUtilities/test/radixSort_t.cu: In function 'void go(bool) [with T = float; int NS = 2; U = float; LL = double]':
  /data/cmsbld/jenkins/workspace/build-any-ib/w/tmp/BUILDROOT/e9c933c3dc3076293cddde4dd702cd2f/opt/cmssw/slc7_amd64_gcc11/cms/cmssw/CMSSW_12_1_X_2021-08-16-1100/src/HeterogeneousCore/CUDAUtilities/test/radixSort_t.cu:145:15: error: array subscript 'long unsigned int[0]' is partly outside array bounds of 'float [1]' [-Werror=array-bounds]
   145 |           *k = (*k >> sh) << sh;
      |           ~~~~^~~~~~~~
/data/cmsbld/jenkins/workspace/build-any-ib/w/tmp/BUILDROOT/e9c933c3dc3076293cddde4dd702cd2f/opt/cmssw/slc7_amd64_gcc11/cms/cmssw/CMSSW_12_1_X_2021-08-16-1100/src/HeterogeneousCore/CUDAUtilities/test/radixSort_t.cu:139:6: note: while referencing 'k1'
  139 |         auto k1 = a[ind[j]];
      |      ^ 

Log file: https://cmssdt.cern.ch/SDT/cgi-bin/buildlogs/slc7_amd64_gcc11/CMSSW_12_1_X_2021-08-16-1100/HeterogeneousCore/CUDAUtilities

[cmsbuild]

A new Issue was created by @iarspider .

@Dr15Jones, @perrotta, @dpiparo, @makortel, @smuzaffar, @qliphy can you please review it and eventually sign/assign? Thanks.

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[iarspider]

assign heterogeneous

[cmsbuild]

New categories assigned: heterogeneous

@fwyzard,@makortel you have been requested to review this Pull request/Issue and eventually sign? Thanks

[makortel]

@VinInn The error points to the same helper function we discussed in cms-patatrack/pixeltrack-standalone#195 (comment) .

[fwyzard]

See #34929 for a possible fix.

[smuzaffar]

this has been fixed via #34929