[llvm-dev] JIT tests on AArch64

[David A. Greene via llvm-dev]

Just a quick note to say that I saw this.  I'm tracking down what looks
like another issue which may be undefined behavior within a PassManager
test.  That's more critical for us at the moment so I'm going to
diagnose and send a report about that before getting back to the JIT
tests.  In the meantime, if Lang knows anything, that would be helpful.

                        -David


David Blaikie via llvm-dev <llvm-dev at lists.llvm.org> writes:

> +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
>     _______________________________________________
>     LLVM Developers mailing list
>     llvm-dev at lists.llvm.org
>     http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev