Jim Apple has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/11810


Change subject: IMPALA-5031: Make UBSAN-friendly arithmetic generic
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IMPALA-5031: Make UBSAN-friendly arithmetic generic

ArithmeticUtil::AsUnsigned() makes it possible to do arithmetic on
signed integers in a way that does not invoke undefined behavior, but
it only works on integers. This patch adds ArithmeticUtil::Compute(),
which dispatches (at compile time) to the normal arithmetic evaluation
method if the type of the values is a floating point type, but uses
AsUnsigned() if the type of the values is an integral type.

Change-Id: I73bec71e59c5a921003d0ebca52a1d4e49bbef66
---
M be/src/exprs/expr-test.cc
M be/src/util/arithmetic-util.h
2 files changed, 47 insertions(+), 3 deletions(-)



  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/10/11810/1
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I73bec71e59c5a921003d0ebca52a1d4e49bbef66
Gerrit-Change-Number: 11810
Gerrit-PatchSet: 1
Gerrit-Owner: Jim Apple <[email protected]>

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