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From "Impala Public Jenkins (Code Review)" <ger...@cloudera.org>
Subject [Impala-ASF-CR] IMPALA-3877: support unpatched LLVM
Date Sat, 16 Sep 2017 00:46:05 GMT
Impala Public Jenkins has submitted this change and it was merged.

Change subject: IMPALA-3877: support unpatched LLVM
......................................................................


IMPALA-3877: support unpatched LLVM

The p1 patch we use for LLVM avoided merging of structurally
identical Struct types in unpredictable ways when linking in
IR UDF modules. This avoided hitting type assertions when
generating calls to IR UDfs.

This implements an alternative solution, which is to bitcast
the arguments when calling IR UDFs. This means we do not need to carry
the patch when we upgrade LLVM.

Testing:
Ran core tests with unpatched LLVM 3.8, including the IR UDF test that
originally required the patch to pass.

Change-Id: I3dfbe44ed8a1464b9b0991fd54e72b194ad6155d
Reviewed-on: http://gerrit.cloudera.org:8080/7973
Reviewed-by: Tim Armstrong <tarmstrong@cloudera.com>
Tested-by: Impala Public Jenkins
---
M be/src/codegen/CMakeLists.txt
M be/src/codegen/codegen-anyval.cc
A be/src/codegen/codegen-util.cc
A be/src/codegen/codegen-util.h
M be/src/codegen/llvm-codegen.h
M be/src/exprs/expr-codegen-test.cc
6 files changed, 158 insertions(+), 5 deletions(-)

Approvals:
  Impala Public Jenkins: Verified
  Tim Armstrong: Looks good to me, approved



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Gerrit-MessageType: merged
Gerrit-Change-Id: I3dfbe44ed8a1464b9b0991fd54e72b194ad6155d
Gerrit-PatchSet: 5
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Tim Armstrong <tarmstrong@cloudera.com>
Gerrit-Reviewer: Dan Hecht <dhecht@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins
Gerrit-Reviewer: Tim Armstrong <tarmstrong@cloudera.com>

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