[IMPALA-5860] Upgrade LLVM to 3.9.0 or later

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 2.11.0
• Component/s: Backend
• Target Version: Impala 2.11.0
• Epic Color: ghx-label-3
• Assignee: Tim Armstrong
• Reporter: Tim Armstrong
• Created: 29/Aug/17 23:49
• Updated: 08/Dec/17 19:18
• Resolved: 18/Sep/17 19:53

Description

LLVM 3.9 has some useful features, including support for the [[nodiscard]] attribute (https://clang.llvm.org/cxx_status.html) and support for GCC ABI tags (http://releases.llvm.org/3.9.0/docs/ReleaseNotes.html#gcc-abi-tag), which is required to support building against code generated by GCC 5 and later with the C++11 ABI.

Issue Links

• blocks: IMPALA-2615 annotate Status with [[nodiscard]]
• blocks: IMPALA-5490 Upgrade to GCC 7.x or greater
• is related to: IMPALA-6291 Various crashes and incorrect results on CPUs with AVX512
• relates to: IMPALA-3877 Support unpatched LLVM