[email protected] has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/15718 )

Change subject: IMPALA-9645 Port LLVM codegen to adapt aarch64
......................................................................


Patch Set 9:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/15718/9/be/src/codegen/llvm-codegen.cc
File be/src/codegen/llvm-codegen.cc:

http://gerrit.cloudera.org:8080/#/c/15718/9/be/src/codegen/llvm-codegen.cc@113
PS9, Line 113: adx,aes,avx,avx2,bmi,bmi2,cmov,cx16,f16c,"
             :     
"fma,fsgsbase,hle,invpcid,lzcnt,mmx,movbe,pclmul,popcnt,prfchw,rdrnd,rdseed,rtm,smap,"
             :     "sse,sse2,sse3,sse4.1,sse4.2,ssse3,xsave,xsaveopt,
> Are these cpu attributes relevant on aarch64?
Hi, Tamas, these are not relevant on aarch64, but these will also not be 
detected. Anyway I can remove them.


http://gerrit.cloudera.org:8080/#/c/15718/9/be/src/codegen/llvm-codegen.cc@117
PS9, Line 117: The default flags are a known-good set that are "
             :     "routinely tested.
> Does this sentence remain true in aarch64 context?
Yes, these attrs are routinely used in aarch64 context, but still cannot be 
said 'tested' in Impala LLVM codegen, because the aarch64 version of Impala is 
still in developing progress.  If you don't want see this sentence, I can 
remove it.



--
To view, visit http://gerrit.cloudera.org:8080/15718
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I3f30ee84ea9bf5245da88154632bb69079103d11
Gerrit-Change-Number: 15718
Gerrit-PatchSet: 9
Gerrit-Owner: Anonymous Coward <[email protected]>
Gerrit-Reviewer: Anonymous Coward <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Tamas Mate <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-Comment-Date: Tue, 12 May 2020 03:02:39 +0000
Gerrit-HasComments: Yes

Reply via email to