<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/131142>131142</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [MLIR] mlir::LLVM::LLVMFunctionType::clone triggers assertion failure: `results.size() == 1 && "expected a single result type"'
        </td>
    </tr>

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

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

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

<pre>
    Test commit: https://github.com/llvm/llvm-project/commit/9e91725fd4d4ee30e98ab2682f93b423590a4ade

Steps to reproduce:
```shell
mlir-opt test.mlir --pass-pipeline="builtin.module(convert-func-to-llvm)" | mlir-opt --test-funerase-result 
```
Test case:
```mlir
func.func private @mlirAsyncRuntimeAddRef(!llvm.ptr, i64)
```
Crash trace:
```console
mlir-opt: /home/workdir/llvm-project/mlir/lib/Dialect/LLVMIR/IR/LLVMTypes.cpp:235: LLVMFunctionType mlir::LLVM::LLVMFunctionType::clone(TypeRange, TypeRange) const: Assertion `results.size() == 1 && "expected a single result type"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.      Program arguments: /home/workdir/llvm-project/build/bin/./mlir-opt --test-func-erase-result
 #0 0x0000565228775228 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x12d1228)
 #1 0x0000565228772d4e llvm::sys::RunSignalHandlers() (/home/workdir/llvm-project/build/bin/./mlir-opt+0x12ced4e)
 #2 0x0000565228775c31 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
 #3 0x00007feb9538f520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x00007feb953e39fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x00007feb9538f476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x00007feb953757f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x00007feb9537571b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #8 0x00007feb95386e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #9 0x0000565229dd1326 mlir::LLVM::LLVMFunctionType::clone(mlir::TypeRange, mlir::TypeRange) const (/home/workdir/llvm-project/build/bin/./mlir-opt+0x292d326)
#10 0x0000565229ca428e mlir::detail::FunctionOpInterfaceInterfaceTraits::Model<mlir::LLVM::LLVMFuncOp>::cloneTypeWith(mlir::detail::FunctionOpInterfaceInterfaceTraits::Concept const*, mlir::Operation*, mlir::TypeRange, mlir::TypeRange) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x280028e)
#11 0x000056522b8aa1a6 mlir::FunctionOpInterface::getTypeWithoutResults(llvm::BitVector const&) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x44061a6)
#12 0x000056522beeb6d0 (anonymous namespace)::TestFuncEraseResult::runOnOperation() TestFunc.cpp:0:0
#13 0x000056522b86bcd3 mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43c7cd3)
#14 0x000056522b86c572 mlir::detail::OpToOpPassAdaptor::runPipeline(mlir::OpPassManager&, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int, mlir::PassInstrumentor*, mlir::PassInstrumentation::PipelineParentInfo const*) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43c8572)
#15 0x000056522b86ed4e mlir::PassManager::run(mlir::Operation*) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43cad4e)
#16 0x000056522b8672cb performActions(llvm::raw_ostream&, std::shared_ptr<llvm::SourceMgr> const&, mlir::MLIRContext*, mlir::MlirOptMainConfig const&) MlirOptMain.cpp:0:0
#17 0x000056522b866f23 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
#18 0x000056522b912475 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) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x446e475)
#19 0x000056522b860b82 mlir::MlirOptMain(llvm::raw_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43bcb82)
#20 0x000056522b860e33 mlir::MlirOptMain(int, char**, llvm::StringRef, llvm::StringRef, mlir::DialectRegistry&) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43bce33)
#21 0x000056522b861042 mlir::MlirOptMain(int, char**, llvm::StringRef, mlir::DialectRegistry&) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43bd042)
#22 0x00005652287549af main (/home/workdir/llvm-project/build/bin/./mlir-opt+0x12b09af)
#23 0x00007feb95376d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#24 0x00007feb95376e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#25 0x0000565228754505 _start (/home/workdir/llvm-project/build/bin/./mlir-opt+0x12b0505)

```
</pre>
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