[llvm-bugs] [Bug 45563] New: llvm::EVT::getHalfNumVectorElementsVT assert when running MLIR

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=45563

            Bug ID: 45563
           Summary: llvm::EVT::getHalfNumVectorElementsVT assert when
                    running MLIR
           Product: new-bugs
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: ajcbik at google.com
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org

Created attachment 23367
  --> https://bugs.llvm.org/attachment.cgi?id=23367&action=edit
mlir reproducer file

To reproduce
(1) build the MLIR binaries mlir-opt/mlir-cpu-runner
(2) (optional) build support lib ibmlir_runner_utils.so, for vector.print
(2) run this on command line

mlir-opt \
     -convert-loop-to-std  \
    --convert-vector-to-llvm \
    --convert-std-to-llvm test-transfer-read.mlir |  \
mlir-cpu-runner \
   -e entry -entry-point-result=void \
   -shared-libs=<path-to>/libmlir_runner_utils.so

Crashes as follows:


F0415 15:12:21.702099   34881 logging.cc:106] assert.h assertion failed at
third_party/llvm/llvm-project/llvm/include/llvm/CodeGen/ValueTypes.h:371 in
llvm::EVT llvm::EVT::getHalfNumVectorElementsVT(llvm::LLVMContext &) const:
!(EltCnt.Min & 1) && "Splitting vector, but not in half!"
*** Check failure stack trace: ***
    @     0x5578e24d0e30  absl::logging_internal::LogMessage::DieIfFatal()
    @     0x5578e24d0703  absl::logging_internal::LogMessage::SendToLog()
    @     0x5578e24cf9ce  absl::logging_internal::LogMessage::Flush()
    @     0x5578e24d1c88 
absl::logging_internal::LogMessageFatal::~LogMessageFatal()
    @     0x5578e24cd930  __assert_fail
    @     0x5578e0704c27  llvm::EVT::getHalfNumVectorElementsVT()
    @     0x5578e06fa5cb  llvm::SelectionDAG::GetSplitDestVTs()
    @     0x5578e07f066d  llvm::DAGTypeLegalizer::SplitVecRes_MLOAD()
    @     0x5578e07ebad7  llvm::DAGTypeLegalizer::SplitVectorResult()
    @     0x5578e07bad7d  llvm::DAGTypeLegalizer::run()
    @     0x5578e07bf5ab  llvm::SelectionDAG::LegalizeTypes()
    @     0x5578e079d2af  llvm::SelectionDAGISel::CodeGenAndEmitDAG()
    @     0x5578e079cbef  llvm::SelectionDAGISel::SelectBasicBlock()
    @     0x5578e079c645  llvm::SelectionDAGISel::SelectAllBasicBlocks()
    @     0x5578e0799845  llvm::SelectionDAGISel::runOnMachineFunction()
    @     0x5578dfa9ec32  (anonymous
namespace)::X86DAGToDAGISel::runOnMachineFunction()
    @     0x5578e0495927  llvm::MachineFunctionPass::runOnFunction()
    @     0x5578e201982c  llvm::FPPassManager::runOnFunction()
    @     0x5578e2019c55  llvm::FPPassManager::runOnModule()
    @     0x5578e201a3b4  (anonymous namespace)::MPPassManager::runOnModule()
    @     0x5578e2019ef8  llvm::legacy::PassManagerImpl::run()
    @     0x5578e201a961  llvm::legacy::PassManager::run()
    @     0x5578dff4c210  llvm::orc::SimpleCompiler::operator()()
    @     0x5578dffab7b6  llvm::orc::ThreadSafeModule::withModuleDo<>()
    @     0x5578dffab339  llvm::orc::IRCompileLayer::emit()
    @     0x5578dffd535c  llvm::orc::IRTransformLayer::emit()
    @     0x5578dffd535c  llvm::orc::IRTransformLayer::emit()
    @     0x5578e000fd16 
llvm::orc::BasicIRLayerMaterializationUnit::materialize()
    @     0x5578dff7d907  llvm::orc::MaterializationUnit::doMaterialize()
    @     0x5578dff68330 
llvm::orc::ExecutionSession::materializeOnCurrentThread()
    @     0x5578dff82324  std::__u::__invoke<>()
    @     0x5578dff822c7  std::__u::__invoke_void_return_wrapper<>::__call<>()

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