[llvm-dev] JIT tests on AArch64 (original) (raw)

David A. Greene via llvm-dev llvm-dev at lists.llvm.org
Tue Sep 11 12:14:26 PDT 2018

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.lazyfunctioncreator 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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