Tim Armstrong has posted comments on this change. Change subject: Add a build flag for the undefined behavior sanitizer, aka "ubsan". ......................................................................
Patch Set 2: (1 comment) http://gerrit.cloudera.org:8080/#/c/5082/1/be/CMakeLists.txt File be/CMakeLists.txt: Line 40: # -fwrapv: force signed integer arithmetic operations to wrap > This was already assumed, and a number of our tests depend on it holding. My preference is not to add this option and to fix any cases where values are actually wrapping at runtime. This could have performance implications, since a lot of "obvious" loop optimisations can depend on array indices, etc not wrapping. Also we're not enabling this for codegen, which potentially add a gap to our test coverage. -- To view, visit http://gerrit.cloudera.org:8080/5082 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: I88c7234bd7c5eb7404490a0913d90470c10835e7 Gerrit-PatchSet: 2 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Jim Apple <jbap...@cloudera.com> Gerrit-Reviewer: Dan Hecht <dhe...@cloudera.com> Gerrit-Reviewer: Jim Apple <jbap...@cloudera.com> Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com> Gerrit-HasComments: Yes
