[mlir] -convert-tensor-to-linalg crashes

[wwy6191]

git version: bc29fc9

system: Ubuntu 18.04.6 LTS

reproduce with: mlir-opt -convert-tensor-to-linalg a.mlir

a.mlir:

func.func @tensor_pad_constant(%t: tensor<?x10xindex>,%l2:index,%h1:index,%h3: index) -> tensor<?x?xindex> {
  %0= tensor.pad %t low[5, %l2] high[%h1, %h3] {
  ^bb0(%arg0: index, %arg1: index):
    %c = arith.constant 50 : index
    tensor.yield %c : index
  } : tensor<?x10xindex> to tensor<?x?xindex>
  return %0 : tensor<?x?xindex>
}

module attributes {transform.with_named_sequence} {
  transform.named_sequence @__transform_main(%arg1:!transform.any_op {transform.readonly}) {
    %0 = transform.structured.match ops{["tensor.pad"]} in %arg1
      : (!transform.any_op) ->!transform.any_op
    transform.structured.rewrite_in_destination_passing_style %0
      : (!transform.any_op) ->!transform.any_op
      transform.yield
  }
}

stack trace:

mlir-opt: /data/szy/MLIR/llvm-release/llvm-project/mlir/lib/IR/PatternMatch.cpp:182: auto mlir::RewriterBase::eraseOp(Operation *)::(anonymous class)::operator()(Operation *) const: Assertion `mayBeGraphRegion(*op->getParentRegion()) && "expected that op has no uses"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.      Program arguments: /data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt -convert-tensor-to-linalg /data/szy/MLIR/seed/seed29/tmp.QEAQVRHJ7x.mlir
 #0 0x00005652d744c508 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x11ef508)
 #1 0x00005652d744a01e llvm::sys::RunSignalHandlers() (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x11ed01e)
 #2 0x00005652d744ce9d SignalHandler(int) Signals.cpp:0:0
 #3 0x00007f84ae664420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
 #4 0x00007f84adca100b raise /build/glibc-LcI20x/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
 #5 0x00007f84adc80859 abort /build/glibc-LcI20x/glibc-2.31/stdlib/abort.c:81:7
 #6 0x00007f84adc80729 get_sysdep_segment_value /build/glibc-LcI20x/glibc-2.31/intl/loadmsgcat.c:509:8
 #7 0x00007f84adc80729 _nl_load_domain /build/glibc-LcI20x/glibc-2.31/intl/loadmsgcat.c:970:34
 #8 0x00007f84adc91fd6 (/lib/x86_64-linux-gnu/libc.so.6+0x33fd6)
 #9 0x00005652da567df3 (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x430adf3)
#10 0x00005652da56782f std::_Function_handler<void (mlir::Operation*), mlir::RewriterBase::eraseOp(mlir::Operation*)::$_1>::_M_invoke(std::_Any_data const&, mlir::Operation*&&) PatternMatch.cpp:0:0
#11 0x00005652da5662fc mlir::RewriterBase::eraseOp(mlir::Operation*) (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x43092fc)
#12 0x00005652da40c3dd mlir::OperationConverter::convertOperations(llvm::ArrayRef<mlir::Operation*>) (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x41af3dd)
#13 0x00005652da41236b mlir::applyPartialConversion(mlir::Operation*, mlir::ConversionTarget const&, mlir::FrozenRewritePatternSet const&, mlir::ConversionConfig) (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x41b536b)
#14 0x00005652da25a8c8 (anonymous namespace)::ConvertTensorToLinalgPass::runOnOperation() TensorToLinalgPass.cpp:0:0
#15 0x00005652da3adec6 mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x4150ec6)
#16 0x00005652da3ae7f0 mlir::detail::OpToOpPassAdaptor::runPipeline(mlir::OpPassManager&, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int, mlir::PassInstrumentor*, mlir::PassInstrumentation::PipelineParentInfo const*) (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x41517f0)
#17 0x00005652da3b0dc2 mlir::PassManager::run(mlir::Operation*) (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x4153dc2)
#18 0x00005652da3a953a performActions(llvm::raw_ostream&, std::shared_ptr<llvm::SourceMgr> const&, mlir::MLIRContext*, mlir::MlirOptMainConfig const&) MlirOptMain.cpp:0:0
#19 0x00005652da3a918d llvm::LogicalResult llvm::function_ref<llvm::LogicalResult (std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>::callback_fn<mlir::MlirOptMain(llvm::raw_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&)::$_0>(long, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&) MlirOptMain.cpp:0:0
#20 0x00005652da454c65 mlir::splitAndProcessBuffer(std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<llvm::LogicalResult (std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>, llvm::raw_ostream&, llvm::StringRef, llvm::StringRef) (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x41f7c65)
#21 0x00005652da3a3175 mlir::MlirOptMain(llvm::raw_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&) (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x4146175)
#22 0x00005652da3a341f mlir::MlirOptMain(int, char**, llvm::StringRef, llvm::StringRef, mlir::DialectRegistry&) (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x414641f)
#23 0x00005652da3a374e mlir::MlirOptMain(int, char**, llvm::StringRef, mlir::DialectRegistry&) (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x414674e)
#24 0x00005652d742cff7 main (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x11cfff7)
#25 0x00007f84adc82083 __libc_start_main /build/glibc-LcI20x/glibc-2.31/csu/../csu/libc-start.c:342:3
#26 0x00005652d742cb6e _start (/data/szy/MLIR/llvm-release/llvm-project/build/bin/mlir-opt+0x11cfb6e)