Daniel Becker has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/20399 )

Change subject: IMPALA-5081: Add codegen_opt_level query option
......................................................................


Patch Set 3:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/20399/3/be/src/codegen/llvm-codegen-test.cc
File be/src/codegen/llvm-codegen-test.cc:

http://gerrit.cloudera.org:8080/#/c/20399/3/be/src/codegen/llvm-codegen-test.cc@679
PS3, Line 679: used
Nit: use.


http://gerrit.cloudera.org:8080/#/c/20399/3/be/src/codegen/llvm-codegen-test.cc@694
PS3, Line 694: 5
Instead of hard-coding this value, we could extract the opt levels on L673 into 
a collection (e.g. vector) and use its size.


http://gerrit.cloudera.org:8080/#/c/20399/2/be/src/codegen/llvm-codegen.cc
File be/src/codegen/llvm-codegen.cc:

http://gerrit.cloudera.org:8080/#/c/20399/2/be/src/codegen/llvm-codegen.cc@1448
PS2, Line 1448: p
> This is multiplication and preserves the prior formatting. Pretty sure code
Right, I thought it was pointer dereferencing.


http://gerrit.cloudera.org:8080/#/c/20399/3/be/src/codegen/llvm-codegen.cc
File be/src/codegen/llvm-codegen.cc:

http://gerrit.cloudera.org:8080/#/c/20399/3/be/src/codegen/llvm-codegen.cc@129
PS3, Line 129:     "The IR optimization level for pre-generated code; supports 
O1, O2, and Os.");
Is O0 removed because it prevents further optimisation?



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I371f8758b6552263e91a1fbfd9a6e1c28e1fa2bd
Gerrit-Change-Number: 20399
Gerrit-PatchSet: 3
Gerrit-Owner: Michael Smith <michael.sm...@cloudera.com>
Gerrit-Reviewer: Daniel Becker <daniel.bec...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Michael Smith <michael.sm...@cloudera.com>
Gerrit-Reviewer: Noemi Pap-Takacs <npaptak...@cloudera.com>
Gerrit-Reviewer: Yida Wu <wydbaggio...@gmail.com>
Gerrit-Comment-Date: Fri, 25 Aug 2023 11:52:29 +0000
Gerrit-HasComments: Yes

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