wpleonardo commented on code in PR #1375:
URL: https://github.com/apache/orc/pull/1375#discussion_r1138671692


##########
c++/src/RleDecoderV2.cc:
##########
@@ -17,26 +17,31 @@
  */
 
 #include "Adaptor.hh"
+#include "Bpacking.hh"
 #include "Compression.hh"
+#include "Dispatch.hh"
 #include "RLEV2Util.hh"
 #include "RLEv2.hh"
 #include "Utils.hh"
+#if defined(ORC_HAVE_RUNTIME_AVX512)
+#include "BpackingAvx512.hh"
+#endif

Review Comment:
   
https://github.com/wpleonardo/orc/blob/fe5b6c7a29721bb5d8c4699a0b072d64555d600d/c%2B%2B/src/RleDecoderV2.cc#L78
   Because in the above function, we need to decide which function is added 
into the vector. When AVX512 enable, we need this header file to have function 
definition of AVX512 Bit-unpacking.



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