[llvm-dev] JIT tests on AArch64

[David Blaikie via llvm-dev]

+lhames, JIT Ring Master

David - do you have any further info on the failures? How are these tests
failing (what errors, crashes, etc? backtraces?)? Might get something
useful out of running them under a sanitizer or valgrind (might not - not
sure if all of their lower-level behavior is understood/valid with those
kinds of checkers)

On Mon, Sep 10, 2018 at 8:18 PM David Greene via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Hi all,
>
> I am seeing a number of JIT unit test failures on AArch64.  Some googling
> returns
> past discussions (circa 2014) but as far as I can tell, everything should
> be working.
> I listed the failures below.
>
> These are from a Release build.  A Debug build does not exhibit the
> failures.  I built
> with gcc 6.1.0 on SuSE 12.  Switching to gcc 8.2.0 also makes the problem
> go away,
> both in Debug and Release builds.
>
> Is there a known problem with gcc 6.1.0 on AArch64?  I considered the
> possiblity
> that the tests (or libraries) somehow wander into undefined behavior
> territory
> but my guess is that's unlikely.
>
>                                                             -David
>
> ********************
> Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
> Testing Time: 5.12s
> ********************
> Failing Tests (11):
>     LLVM-Unit ::
> ExecutionEngine/MCJIT/./MCJITTests/MCJITTest.lazy_function_creator_lambda
>     LLVM-Unit ::
> ExecutionEngine/Orc/./OrcJITTests/CoreAPIsStandardTest.DefineMaterializingSymbol
>     LLVM-Unit ::
> ExecutionEngine/Orc/./OrcJITTests/CoreAPIsStandardTest.FallbackDefinitionGeneratorTest
>     LLVM-Unit ::
> ExecutionEngine/Orc/./OrcJITTests/DummyRPC.ReturnErrorFailure
>     LLVM-Unit ::
> ExecutionEngine/Orc/./OrcJITTests/DummyRPC.ReturnExpectedFailure
>     LLVM-Unit ::
> ExecutionEngine/Orc/./OrcJITTests/RemoteObjectLayer.AddObjectFailure
>     LLVM-Unit ::
> ExecutionEngine/Orc/./OrcJITTests/RemoteObjectLayer.EmitAndFinalizeFailure
>     LLVM-Unit ::
> ExecutionEngine/Orc/./OrcJITTests/RemoteObjectLayer.FindSymbol
>     LLVM-Unit ::
> ExecutionEngine/Orc/./OrcJITTests/RemoteObjectLayer.FindSymbolIn
>     LLVM-Unit ::
> ExecutionEngine/Orc/./OrcJITTests/RemoteObjectLayer.RemoveObjectFailure
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