Commits on Apr 7, 2022

1. [ROCm] revert cat operator performance work-around …

   revert d5ca53c (pytorch#46097).  The changes only affect ROCm.  Reverts a work-around for a compiler performance issue that is no longer needed.
   
   `python -m pt.cat_test --tag_filter all --device cuda`
   
   ```
   
   OLD Forward Execution Time (us) : 48.833
   NEW Forward Execution Time (us) : 8.318
   
   OLD Forward Execution Time (us) : 54.508
   NEW Forward Execution Time (us) : 23.824
   
   OLD Forward Execution Time (us) : 52.117
   NEW Forward Execution Time (us) : 14.942
   
   OLD Forward Execution Time (us) : 98.790
   NEW Forward Execution Time (us) : 74.334
   
   OLD Forward Execution Time (us) : 102.063
   NEW Forward Execution Time (us) : 76.008
   
   OLD Forward Execution Time (us) : 167.786
   NEW Forward Execution Time (us) : 123.679
   
   OLD Forward Execution Time (us) : 98.320
   NEW Forward Execution Time (us) : 67.436
   
   OLD Forward Execution Time (us) : 91.484
   NEW Forward Execution Time (us) : 59.230
   
   OLD Forward Execution Time (us) : 109.569
   NEW Forward Execution Time (us) : 76.557
   
   OLD Forward Execution Time (us) : 106.603
   NEW Forward Execution Time (us) : 87.635
   
   OLD Forward Execution Time (us) : 106.693
   NEW Forward Execution Time (us) : 88.902
   
   OLD Forward Execution Time (us) : 110.881
   NEW Forward Execution Time (us) : 94.361
   
   OLD Forward Execution Time (us) : 122.925
   NEW Forward Execution Time (us) : 123.046
   
   OLD Forward Execution Time (us) : 272.442
   NEW Forward Execution Time (us) : 271.932
   
   OLD Forward Execution Time (us) : 457.329
   NEW Forward Execution Time (us) : 456.767
   
   OLD Forward Execution Time (us) : 117.688
   NEW Forward Execution Time (us) : 87.133
   
   OLD Forward Execution Time (us) : 873.764
   NEW Forward Execution Time (us) : 865.075
   
   OLD Forward Execution Time (us) : 1746.831
   NEW Forward Execution Time (us) : 1730.252
   
   OLD Forward Execution Time (us) : 2619.303
   NEW Forward Execution Time (us) : 2598.717
   
   OLD Forward Execution Time (us) : 52.063
   NEW Forward Execution Time (us) : 7.904
   
   OLD Forward Execution Time (us) : 52.275
   NEW Forward Execution Time (us) : 8.118
   
   OLD Forward Execution Time (us) : 51.896
   NEW Forward Execution Time (us) : 7.938
   
   OLD Forward Execution Time (us) : 51.745
   NEW Forward Execution Time (us) : 7.922
   
   OLD Forward Execution Time (us) : 52.575
   NEW Forward Execution Time (us) : 13.299
   
   OLD Forward Execution Time (us) : 52.090
   NEW Forward Execution Time (us) : 8.015
   ```
   Pull Request resolved: pytorch#74129
   Approved by: https://github.com/ngimel

   

   jeffdaily committed Apr 7, 2022
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