<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/128328>128328</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [MLIR]`-test-bytecode-roundtrip=test-kind=2` triggers Assertion Failure `val == 0 && "Value must be zero for unsigned 0-bit APInt"'
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            mlir
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          xisang0
      </td>
    </tr>
</table>

<pre>
    Test on commit: https://github.com/llvm/llvm-project/commit/dca2ed31278c444f839e3e04fde0c21b62451d4a
steps to reproduce:
```
mlir-opt test.mlir --test-bytecode-roundtrip=test-kind=2
```
test case:
```
module {
 func.func @main(%arg0: tensor<1x2xf32>, %arg1: tensor<2x?xf32>) -> () {
 // Call test_concat_dynamic
    %concat_result = tosa.concat %arg0, %arg1 {axis = 0 : i32} : (tensor<1x2xf32>, tensor<2x?xf32>) -> tensor<?x?xf32>
 return
  }
}
```
crash trace:
```
Overriding parsing of TestI32Type encoding...
-:0:0: error: expected integer or index type for IntegerAttr, but got: '!test.i32'
-:0:0: note: in bytecode version 6 produced by: MLIR20.0.0git
mlir-opt: /home/workdir/llvm-project-19/llvm/include/llvm/ADT/APInt.h:125: llvm::APInt::APInt(unsigned int, uint64_t, bool, bool): Assertion `val == 0 && "Value must be zero for unsigned 0-bit APInt"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.      Program arguments: ./mlir-opt /home/workdir/test.mlir --test-bytecode-roundtrip=test-kind=2
 #0 0x00005857c3089258 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (./mlir-opt+0x10b5258)
 #1 0x00005857c3086d7e llvm::sys::RunSignalHandlers() (./mlir-opt+0x10b2d7e)
 #2 0x00005857c3089c68 SignalHandler(int) Signals.cpp:0:0
 #3 0x000072a9cc5e1520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x000072a9cc6359fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x000072a9cc5e1476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x000072a9cc5c77f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x000072a9cc5c771b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #8 0x000072a9cc5d8e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #9 0x00005857c85544da (anonymous namespace)::DialectReader::readAPIntWithKnownWidth(unsigned int) BytecodeReader.cpp:0:0
#10 0x00005857c65a2e5a (anonymous namespace)::BuiltinDialectBytecodeInterface::readAttribute(mlir::DialectBytecodeReader&) const BuiltinDialectBytecode.cpp:0:0
#11 0x00005857c8554d14 (anonymous namespace)::AttrTypeReader::resolveAttribute(unsigned long) BytecodeReader.cpp:0:0
#12 0x00005857c85540a7 (anonymous namespace)::DialectReader::readAttribute(mlir::Attribute&) BytecodeReader.cpp:0:0
#13 0x00005857c3143951 llvm::LogicalResult mlir::DialectBytecodeReader::readAttribute<mlir::IntegerAttr>(mlir::IntegerAttr&) (./mlir-opt+0x116f951)
#14 0x00005857c56380f9 mlir::detail::BytecodeOpInterfaceInterfaceTraits::Model<mlir::tosa::ConcatOp>::readProperties(mlir::DialectBytecodeReader&, mlir::OperationState&) (./mlir-opt+0x36640f9)
#15 0x00005857c85519f8 mlir::BytecodeReader::Impl::parseRegions(std::vector<mlir::BytecodeReader::Impl::RegionReadState, std::allocator<mlir::BytecodeReader::Impl::RegionReadState>>&, mlir::BytecodeReader::Impl::RegionReadState&) (./mlir-opt+0x657d9f8)
#16 0x00005857c854d40b mlir::BytecodeReader::Impl::parseIRSection(llvm::ArrayRef<unsigned char>, mlir::Block*) (./mlir-opt+0x657940b)
#17 0x00005857c854a86d mlir::BytecodeReader::Impl::read(mlir::Block*, llvm::function_ref<bool (mlir::Operation*)>) (./mlir-opt+0x657686d)
#18 0x00005857c85531ee readBytecodeFileImpl(llvm::MemoryBufferRef, mlir::Block*, mlir::ParserConfig const&, std::shared_ptr<llvm::SourceMgr> const&) BytecodeReader.cpp:0:0
#19 0x00005857c855307e mlir::readBytecodeFile(llvm::MemoryBufferRef, mlir::Block*, mlir::ParserConfig const&) (./mlir-opt+0x657f07e)
#20 0x00005857c647baff mlir::parseSourceFile(llvm::SourceMgr const&, mlir::Block*, mlir::ParserConfig const&, mlir::LocationAttr*) (./mlir-opt+0x44a7aff)
#21 0x00005857c647c198 mlir::parseSourceString(llvm::StringRef, mlir::Block*, mlir::ParserConfig const&, llvm::StringRef, mlir::LocationAttr*) (./mlir-opt+0x44a8198)
#22 0x00005857c634c684 (anonymous namespace)::TestBytecodeRoundtripPass::doRoundtripWithConfigs(mlir::Operation*, mlir::BytecodeWriterConfig const&, mlir::ParserConfig const&) TestBytecodeRoundtrip.cpp:0:0
#23 0x00005857c634a4f0 (anonymous namespace)::TestBytecodeRoundtripPass::runOnOperation() TestBytecodeRoundtrip.cpp:0:0
#24 0x00005857c647ebcf mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) (./mlir-opt+0x44aabcf)
#25 0x00005857c647f352 mlir::detail::OpToOpPassAdaptor::runPipeline(mlir::OpPassManager&, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int, mlir::PassInstrumentor*, mlir::PassInstrumentation::PipelineParentInfo const*) (./mlir-opt+0x44ab352)
#26 0x00005857c6481ade mlir::PassManager::run(mlir::Operation*) (./mlir-opt+0x44adade)
#27 0x00005857c647a62b performActions(llvm::raw_ostream&, std::shared_ptr<llvm::SourceMgr> const&, mlir::MLIRContext*, mlir::MlirOptMainConfig const&) MlirOptMain.cpp:0:0
#28 0x00005857c647a283 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
#29 0x00005857c65239e5 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) (./mlir-opt+0x454f9e5)
#30 0x00005857c6473ee2 mlir::MlirOptMain(llvm::raw_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&) (./mlir-opt+0x449fee2)
#31 0x00005857c6474193 mlir::MlirOptMain(int, char**, llvm::StringRef, llvm::StringRef, mlir::DialectRegistry&) (./mlir-opt+0x44a0193)
#32 0x00005857c64743a2 mlir::MlirOptMain(int, char**, llvm::StringRef, mlir::DialectRegistry&) (./mlir-opt+0x44a03a2)
#33 0x00005857c3068477 main (./mlir-opt+0x1094477)
#34 0x000072a9cc5c8d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#35 0x000072a9cc5c8e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#36 0x00005857c3067fe5 _start (./mlir-opt+0x1093fe5)
Aborted (core dumped)
```
</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJzcWl1T87gV_jXmRkNGlvx5wYXf8GbK9GVggOleZmTrOFFxJFeSWeiv78h24g8SIGy3nXZnF7yWfM5znvMpG2aM2EiAKy_84YXXF6yxW6WvXoVhcoMvcsXfrp7AWKQkKtRuJ6xHM7S1tjYezTyy8shqI-y2yReF2nlkVVUv-1-XtVZ_h8J6ZNU_Sla8YAQ49UmcFEEQlAlNgQIOSg64IH4ekSD0ecA8nBkLtUFWIQ21VrwpwGnEmRfh_l-c7SqhL1VtkQVjF-7_0OWlu77M3ywUisOlVo3kVovao9ftyrOQ3KPXZCbKraGCmWNaFG8qQF78w8MZKhtZLNwP5AV4x4T0SOKRkOkNdtxYkEZpjy79V_JaUuLRnx5Zom6HP9lBXj26OuxJ0aVHf6JWWrpX1jGMlqyqWhvXhZIFs2v-JtlOFG4LQk54f1-DaSqLPHqNrDJs0d1Ge3wDEKeAvQrTbsXI4RKUePF1e-mR5IQdH4M_rLq10TrOkAbbaNkC9uJrx3D3c8RzoZnZIqvZMVffvYDWggu5QTXTxv1WJXKxeUPJ01sNCGSh3PpisfBwdunRDPf_IdDawcoQvNZQWOBISAsb0EhpJCSHV2SdiFJpdNOtZNZqZ3DeWLRRtmMl9ojfhprjisRzNVJZaJmUaB9_6AW0EUqiCPVRzFH-5jbd_rp5IHiBF3gj7CiWO02rrdqBR1a_K_3MhZ6l1KWfDrkmZFE1HIYb2fWT-3l_I-1i69HMJ6ET2q7SzKNZuzS-JEkj20LQEuPMboS0UbBur3OlquF36mRlxoC2zi4vwi-scmHURxKJPBIhj5C_saoBtGuMRTmgf4JWLb8HTfgyFxb1ABydqGSiAu68d__rZ_b4E5km3wmLGMqbjasDSltXEc6uP8KYBozLJCadiS1hyG4BdTGXs-K5jTun-9Gy4hnxZld3UYgXqP3nXquNZjvE9KbZgbQOAVp4ZHWoQsfc9r3KhDxCMcKvGGMcJmFcUJykJExGTjRvpru410LaFvRTmzokGTZp9vtaGauB7VrHLDv_pi7Dx9A98gO_-jgPSejKT4_AnyGIeAzHEDw08lFsJKv-wiSvQJt9ETuuhPAYBiVkbmYRJWgiziNJj7q7bRZFXR_yrpNCeykxYWlRhOCHBHe1dFWJ3COr1yRaR8FlJWTzermRTbdQLIxaRC2wgIQED7CCicCIhmlZoNpuNTC-fhZVdZ70NErLYpAezuEGcYQ2pjXvXNhBHA2Co6ngIo5LiljuEucssSSJSzqIjd-J9fOzBfr5IDCZCuQJpNF5AmkK6cjwdBxGSRgGAWdOIJNKvu1UY5BkOzB1myFpF7fXglVQ2AdgHHSfMMB4W5J-E3b7V6l-l78JbrfvKmSKfvR53D09C0mXPJP8jUJGIPwU0Y9GVFbIHthehWtJuuzbYo_RWi3yxrp0d_k1MWgKrU38FBVKGouOKziC3p_zyf3gM_QOlGvFU0KNql5gjPfAZKXk5ktUkjkYzOLvOvcocaO70ZcQ0UnV8gOahv6oNP5SG1Gw6qEbxz5z0BFwdDk8NJ5I3LCVHF_qkB-tuX5UpqHfJYtDH4zRhxFNcJmOUHKwTFR9RPZQ7-pDFB4unjQTtu8Bt4pDNYHtBtDuatlOoXe1Q3-w9V6r2s0Qri9_KYSXI4R3NWjm5o9Hyw5OO2Y6jaIAl-lgejgLJT8tk5HgY5652dU9GW7yhAfYCCUdamN5d_8FCtvOvV8V1Mlwa70BS3QQxqpKFeyPyXNE_3zH2pmYTpIahTFPy2QgNZqSGvAA5-eRevPwCIVz6GR8ybRmbw9QenR5KBrFlun-MDLSUKni2SPZB4jTAOcD4niGmCUR_zJiF76ToB3UL0dFwB0SnUlr3Vrgxmc0eewQxR3y_iR1An-URHzAn8zCmPoAyOHaI1-JClrEYz5vYaf024-mLEE7Wk9wOL5777yjl0qWYtP1kD6sDvFqtkwDX9euOi0HXY-q0QXcbpyzRg9-obbOWznFMYwQza38kyw86YgS78dXN71Ou3wQ56wsR8Lb4O6oeIf1wNCE1287ZNjyy9UPoWTXFk4mRRCwmJXlYIs_s6Xw0-S4LY9WC9e7x9a0t_5oVH0q7-u2JX46lCgyGSEiGhRR8uk88wRmaET709o9M33L4-pw002LnTXmgww_Vot_08J-4s6TAXoU3_uEInRmOwtK_Adt1428kyPrknPwBLM4g7woT4wfd_WTumv1ZpzVbVPs1U94boHNKT5NfiZZ9WaEuWWSbUCPX3LMx_wTwcXyYpQ44cygkobkbIPuRQ2VkDALILf1gPPUGPR9C6eBZsyNNFa37zeUPpK24w2d5m6hx37PNEh7I0u1D9SPMjSnIRlIjKYkJj7jMNO9t-ZoDMy66SmlnPFR-Y5nnmMRyVENulR6l7Xd23zyQuWbfXBM6-2vm4elkhZe7TvKbyuh72p7y4Q8UgFGq0fyLJkbRxJ68pBycm459cB4AG6k-EcD72wfd-MJVxxK1lR2zaGC9rRz4pl-jh33hbkH0sOpomBVlbPieV3Kyeg8IumrvvzT7Xl34HHTt7H67X1wfBQA3RaPBGvcHQ27I_V_0pIPPPNJeKbTFySEphCODDd1JWwm3UGxAGP2WP8rQfc_mBIf7jg5aB29faKWhkGZQniopXQ-ClMAcjyQ_9_S8ESvSUuAocHR-Xgd-Ck9yU_fnNvTrusJ2blO-8y4kw0S-ykdQJM5aMpOO_Uc0N9FR9mI0ulrOBwlQRyjHRPyxLeHNAjieHg8mL3WTnh65lcDkvIUDwLDuUAIMFqv3TNrY5m26z24c1RAMFIRzUyOSwhRJ_yU0bTcp2mWK22Bu42F0tB-5YL9a4X919YLfkV5SlN2AVd-HGDi0yCOLrZXJSNxEjG_CMM0ZoCj3A_TgIc542Gc5_xCXBFMQkwIwQmNw2gRY1pQn4dBmueEJoEXYNgxUS1cUCyU3ly0n-aufJJQklxULIfKtH-MQEgbIIR44fWFvmo_6OXNxngBroSxZpBgha3aP2BwY5QXXnsR_vKXtggjq8VmA9qMvmmumKgaDf_Ob5sXja6uvv_dsufn5Yr8KwAA___NtjtP">