[IMPALA-3390] Get llvm-codegen-test passing on PPC64LE

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: Impala 2.5.0
• Component/s: Backend
• Environment: Ubuntu 15.10 PPC64LE
• Target Version: Product Backlog
• Assignee: Unassigned
• Reporter: Nishidha
• Created: 21/Apr/16 12:59
• Updated: 12/Jun/17 21:06
• Resolved: 12/Jun/17 21:06

Description

LLVM has been upgraded locally to 3.7 as 3.3 is not supported on PPC64LE.

After upgrading to LLVM 3.7, llvm-codegen-test (ReplaceFnCall) is failing.
As per comments in this test, this test loads a precompiled IR file (compiled from testdata/llvm/test-loop.cc). I see this precompiled IR file at Impala/llvm-ir/test-loop.bc.

I think I need to recreate this test-loop.bc on POWER as the one checked-into cdh5-trunk branch is for x86. I did it as below -
---- clang -O3 -emit-llvm test-loop.cc -c -o test-loop.bc

Please let me know if I did it correctly.

Then real failure I got is

[ RUN ] LlvmCodeGenTest.ReplaceFnCall

• • • Check failure stack trace: ***
      @ 0x1298962c google::LogMessage::Fail()
      @ 0x1298c7ec google::LogMessage::SendToLog()
      @ 0x12988fc4 google::LogMessage::Flush()
      @ 0x1298d364 google::LogMessageFatal::~LogMessageFatal()
      @ 0x10db0f48 impala::LlvmCodegenHandleError()
      @ 0x1288e984 llvm::report_fatal_error()
      @ 0x1288eaf8 llvm::report_fatal_error()
      @ 0x1240b3c8 llvm::MCJIT::emitObject()
      @ 0x1240bc38 llvm::MCJIT::generateCodeForModule()
      @ 0x124061e4 llvm::MCJIT::getPointerToFunction()
      @ 0x10db952c impala::LlvmCodeGen::JitFunction()
      @ 0x10db7c50 impala::LlvmCodeGen::FinalizeModule()
      @ 0x10d9f268 impala::LlvmCodeGenTest::FinalizeModule()
      @ 0x10d94678 impala::LlvmCodeGenTest_ReplaceFnCall_Test::TestBody()
      @ 0x3fff9164d304 testing::internal::HandleExceptionsInMethodIfSupported<>()
      @ 0x3fff916429d4 testing::Test::Run()
      @ 0x3fff91642be8 testing::TestInfo::Run()
      @ 0x3fff91642d34 testing::TestCase::Run()
      @ 0x3fff9164475c testing::internal::UnitTestImpl::RunAllTests()
      @ 0x3fff91644b28 testing::UnitTest::Run()
      @ 0x10d95f18 main
      @ 0x3fff90e43500 (unknown)
      @ 0x3fff90e43734 (unknown)
      @ (nil) (unknown)

0% tests passed, 1 tests failed out of 1

Total Test time (real) = 0.16 sec

The following tests FAILED:
1 - llvm-codegen-test (OTHER_FAULT)

Attached log too.