<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/131446>131446</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [MLIR] `-test-linalg-elementwise-fusion-patterns` crashed: Assertion Failure `op->use_empty() && "expected 'op' to have no uses"
        </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: [bbd1bb4](https://github.com/llvm/llvm-project/commit/bbd1bb40573dd5a36dc04af4ad307d6e16456f89)

step to reproduce:
```
mlir-opt test.mlir --test-linalg-elementwise-fusion-patterns=fuse-multiuse-producer
```

test case:
```
#map = affine_map<(d0, d1, d2, d3) -> (d0, d1, d2, d3)>
module {
  func.func @avgpool2d_pad_top(%arg0: tensor<1x32x32x8xf32>) -> tensor<1x32x32x8xf32> attributes {llvm.emit_c_interface} {
    %0 = llvm.mlir.constant(0.000000e+00 : f32) : f32
    %1 = llvm.mlir.constant(31 : index) : i64
    %11 = tensor.empty() : tensor<1x32x32x8xf32>
    %12 = tensor.empty() : tensor<1x32x32x8xindex>
    %13:2 = linalg.generic {indexing_maps = [#map, #map, #map], iterator_types = ["parallel", "parallel", "parallel", "parallel"]} ins(%arg0 : tensor<1x32x32x8xf32>) outs(%11, %12 : tensor<1x32x32x8xf32>, tensor<1x32x32x8xindex>) {
 ^bb0(%in: f32, %out: f32, %out_0: index):
      %59 = linalg.index 1 : index
      linalg.yield %0, %59 : f32, index
    } -> (tensor<1x32x32x8xf32>, tensor<1x32x32x8xindex>)
    %14 = tensor.empty() : tensor<1x32x32x8xi64>
    %15:2 = linalg.generic {indexing_maps = [#map, #map, #map, #map], iterator_types = ["parallel", "parallel", "parallel", "parallel"]} ins(%arg0, %13#1 : tensor<1x32x32x8xf32>, tensor<1x32x32x8xindex>) outs(%11, %14 : tensor<1x32x32x8xf32>, tensor<1x32x32x8xi64>) {
    ^bb0(%in: f32, %in_0: index, %out: f32, %out_1: i64):
      %59 = builtin.unrealized_conversion_cast %in_0 : index to i64
 linalg.yield %0, %59 : f32, i64
    } -> (tensor<1x32x32x8xf32>, tensor<1x32x32x8xi64>)
    %16 = tensor.empty() : tensor<1x32x32x8xi64>
 %17:2 = linalg.generic {indexing_maps = [#map, #map, #map, #map, #map], iterator_types = ["parallel", "parallel", "parallel", "parallel"]} ins(%arg0, %13#1, %15#1 : tensor<1x32x32x8xf32>, tensor<1x32x32x8xindex>, tensor<1x32x32x8xi64>) outs(%11, %16 : tensor<1x32x32x8xf32>, tensor<1x32x32x8xi64>) {
    ^bb0(%in: f32, %in_0: index, %in_1: i64, %out: f32, %out_2: i64):
      %59 = llvm.sub %1, %in_1 : i64
      linalg.yield %0, %59 : f32, i64
    } -> (tensor<1x32x32x8xf32>, tensor<1x32x32x8xi64>)
 return %17 : tensor<1x32x32x8xf32>
  }
}
```

Crash backtrace:
```
mlir-opt: /home/workdir/llvm-project/mlir/lib/IR/PatternMatch.cpp:153: virtual void mlir::RewriterBase::eraseOp(Operation *): Assertion `op->use_empty() && "expected 'op' to have 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: /home/workdir/llvm-project/build/bin/./mlir-opt test.mlir --test-linalg-elementwise-fusion-patterns=fuse-multiuse-producer
 #0 0x000055e23f46a158 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x12d3158)
 #1 0x000055e23f467c7e llvm::sys::RunSignalHandlers() (/home/workdir/llvm-project/build/bin/./mlir-opt+0x12d0c7e)
 #2 0x000055e23f46ab61 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
 #3 0x00007fe5c93a3520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x00007fe5c93f79fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x00007fe5c93a3476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x00007fe5c93897f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x00007fe5c938971b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #8 0x00007fe5c939ae96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #9 0x000055e242713fcf (/home/workdir/llvm-project/build/bin/./mlir-opt+0x457cfcf)
#10 0x000055e242741813 (anonymous namespace)::TestMultiUseProducerFusion::matchAndRewrite(mlir::linalg::GenericOp, mlir::PatternRewriter&) const TestLinalgElementwiseFusion.cpp:0:0
#11 0x000055e244d13622 void llvm::function_ref<void ()>::callback_fn<mlir::PatternApplicator::matchAndRewrite(mlir::Operation*, mlir::PatternRewriter&, llvm::function_ref<bool (mlir::Pattern const&)>, llvm::function_ref<void (mlir::Pattern const&)>, llvm::function_ref<llvm::LogicalResult (mlir::Pattern const&)>)::$_0>(long) PatternApplicator.cpp:0:0
#12 0x000055e244d1031f mlir::PatternApplicator::matchAndRewrite(mlir::Operation*, mlir::PatternRewriter&, llvm::function_ref<bool (mlir::Pattern const&)>, llvm::function_ref<void (mlir::Pattern const&)>, llvm::function_ref<llvm::LogicalResult (mlir::Pattern const&)>) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x6b7931f)
#13 0x000055e2425e101a (anonymous namespace)::GreedyPatternRewriteDriver::processWorklist() GreedyPatternRewriteDriver.cpp:0:0
#14 0x000055e2425dd863 mlir::applyPatternsGreedily(mlir::Region&, mlir::FrozenRewritePatternSet const&, mlir::GreedyRewriteConfig, bool*) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x4446863)
#15 0x000055e242740295 (anonymous namespace)::TestLinalgElementwiseFusion::runOnOperation() TestLinalgElementwiseFusion.cpp:0:0
#16 0x000055e2425638a3 mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43cc8a3)
#17 0x000055e242564142 mlir::detail::OpToOpPassAdaptor::runPipeline(mlir::OpPassManager&, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int, mlir::PassInstrumentor*, mlir::PassInstrumentation::PipelineParentInfo const*) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43cd142)
#18 0x000055e24256a58e auto void mlir::parallelForEach<__gnu_cxx::__normal_iterator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo*, std::vector<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo, std::allocator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo>>>, mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::$_0>(mlir::MLIRContext*, __gnu_cxx::__normal_iterator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo*, std::vector<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo, std::allocator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo>>>, __gnu_cxx::__normal_iterator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo*, std::vector<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo, std::allocator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo>>>, mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::$_0&&)::'lambda'(__gnu_cxx::__normal_iterator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo*, std::vector<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo, std::allocator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo>>>&&)::operator()<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo&>(__gnu_cxx::__normal_iterator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo*, std::vector<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo, std::allocator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo>>>&&) const Pass.cpp:0:0
#19 0x000055e24256599b mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43ce99b)
#20 0x000055e2425639fc mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43cc9fc)
#21 0x000055e242564142 mlir::detail::OpToOpPassAdaptor::runPipeline(mlir::OpPassManager&, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int, mlir::PassInstrumentor*, mlir::PassInstrumentation::PipelineParentInfo const*) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43cd142)
#22 0x000055e24256691e mlir::PassManager::run(mlir::Operation*) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43cf91e)
#23 0x000055e24255ee9b performActions(llvm::raw_ostream&, std::shared_ptr<llvm::SourceMgr> const&, mlir::MLIRContext*, mlir::MlirOptMainConfig const&) MlirOptMain.cpp:0:0
#24 0x000055e24255eaf3 llvm::LogicalResult llvm::function_ref<llvm::LogicalResult (std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>::callback_fn<mlir::MlirOptMain(llvm::raw_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&)::$_0>(long, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&) MlirOptMain.cpp:0:0
#25 0x000055e24260a065 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+0x4473065)
#26 0x000055e242558752 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+0x43c1752)
#27 0x000055e242558a03 mlir::MlirOptMain(int, char**, llvm::StringRef, llvm::StringRef, mlir::DialectRegistry&) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43c1a03)
#28 0x000055e242558c12 mlir::MlirOptMain(int, char**, llvm::StringRef, mlir::DialectRegistry&) (/home/workdir/llvm-project/build/bin/./mlir-opt+0x43c1c12)
#29 0x000055e23f4498df main (/home/workdir/llvm-project/build/bin/./mlir-opt+0x12b28df)
#30 0x00007fe5c938ad90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#31 0x00007fe5c938ae40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#32 0x000055e23f449435 _start (/home/workdir/llvm-project/build/bin/./mlir-opt+0x12b2435)
Aborted (core dumped)

```
</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJzsW91u2zoSfhrmhoghkfq9yIXqxGcLNGiQnsVeCpQ0srmVSS1Jpcl5-gVF2ZLtOIlbt909SJE6jjWc32-GwwnDtOZLAXCFwg8ovL5gnVlJdaW_AbDqopDV05UBbXAp12tuEM0wCj8UReUXRYDCa0SSlTGtRjRDZIHIYsnNqitmpVwjsmiah823y1bJf0NpEFkMrMhiYOOFMa2qkNGoKr2A1QGrqBdXEfhREEZ1kiKSIi9DXqYNtNhIrKBVsupKsGK9DEXe8OVl64arS9kabLWe2Z_w5aV9f9lwwZrlJTSwBmG-cQ2Xdae5FJctMwaU0Ihe152Gy3XXGG7fDFLUngzkZc4nTD-jASJ0zVqM6DVmdc0F5GvWIjpHJKk8ROa48vtX0r9SRFJ8iegNPv4c0Rtrmay6BjCKPyAvw7juRDmzLxgFHntYtlI2pMpbVuVGtogkiIRMLT0bMgNCS4Xo3H-kxH4ljzUllu1G-FEKzIxRvOgMaCvahnIGa27yMufCgKpZCSi-3qqFMSKh11vf09oIzEoptGHCIJJ4M6__B4h88Cxdhq0gkm7fbrn4x7lQvyfnooLHzVoeBZO1brEzawbr1jz1LnGkx_0xMiAnMnC67LCgiGaOjcPebAkCFC-ts3pyLpYWHLqnsQnYQ8fG_eCdTbU55gYUM1Ll5qmFyTLSMsWaBhpEiFt08ifhtQ0jF3qEziu-IimWnRnofd_xdI57cdn8RfdZDzssofCmKDzHnostUnopsjMHH-TeFBMuMTEeghGm00D0RHgKog3pQPDEoal6KA_8wxGgNg6TNdZtmwT-AasnuAlOhV4U7AIvPCPwfi8EN6CiiAw5_yPAeg6uwfdxdS4fwWo9_wJeudhB53EM-5tSdgzBRccbw8WsEwpYw_-CKi-leABlt7K8ZNps5I3otnvmUB7fiO-xlv4IujdOmkAz-m5s29XxTwH2_xDENz-EZ8D7K8B9Lhmi35YMXEygfzw9yGvp0bcLuit6cya891qENxf68yeCAtMp4eD8hm4Exde2qXSvu03oXDG9wgUrvxrFXmqG-7adLFZyDYgsvkn1teLqsDG35PZTXiCy-HiPyOLOdca3zJSrWdm2iGZ-aNsa_MCV6ViDHySvcL-QZohm9_BN2fT5MLTGNAPFNHy2Denn1qYVl9b2zAUQZ1qDcp9FnmytgzsN-U5hIBEikU0keGyhNGDDFdsWN7Z1bcUeAAuJOw26z7kY14w3UM2Ql919usm-3GDdFWtuMMNFt7SHB6lMv_TUkwvXurNSFpiJCnNRNl0F2KwAl7uhsLK_GFZ-xVW3bl1gvBny0jsll4qtMVPLzh5D9BtDY6t-Zb9zgchiNgTrZxx0bCn0sPdom_QwBELrIGJ-mPSZ5UKqn7R7c6e4ML2df_YAJMlIpNi3XGqjgK37CNqmybh4Jj9ksD04PPqkon6YDCnVF8tdleMyhudUvu_EF74UrPkHE1UDSm9Rdh6tvDKGUSuy78gi8vGOfESS3i9zrPmSi1rmps-OeZ9ZLlGGFXrIQK__7wTQQUBcQ1imlNGQeIMtLo0fkyiPAouJ7vFyKTr3oJxpOYt6nQMSEm_UONhlWMdpXeLWrBSwKv_Km-Y07mmU1uXIPdxXN4gjvNS9eaeqHcTRyDjaZZykcU0xK2yin8SWJHFNR7bxAVu_OJmhX4wMk12GKYM0Oo0hTSGdGJ5OEBaQ2Kd1WZ8HzEEYl3VZD8MXQn1vV1TgJz61opiQ4mktO40FW4Nu-0qQunT7E7S5tVXmnxruhiKz6IuRe762O0smqmHfQCQZ9xJXx9z7P1yf97lv1kaSYX_a7Dp9oUlxPyjAVvSnnsXNWAmd7L1EssZN60cQVD6NCHGb21hE6k6Udq_KFdSIzvunrnzYzbonKVnT2F0grwWi8wNFs7ZteGl7y9fN326XQz142er5cT0LKfvkOmDgHOWcNjQvrxr7Q0zGB5_kkpesuQfdNeZtfAdEIRLY7vHGbjZSLG28D5z7THzJXnw96teHLn2Pzw_E5zxlJyrilPqTskN3yk4Ivuez18rOHwqgetqNw7XiDzDY0CpZgtb_kuprw60VfQ9wfNUzgAp21aqqJKITDLC2bTasdM-YN087fryHZQ-eaBc8CyX_go30gcEXMBN3T6mdygP1XIqaLy2BhdTQO5xnLwiCKInoGJRwby_wSBq-ZS84UpCHlrETn8UkrfqgnFbGo92oRDRh06hUYBhvNvn7p_zc3jGts4q125RXndiDu9YHGX489zPBmifN9S0TbGlzfxOMOe5E_6uW6qyNcEDLMmGTyMR7Hgj8gJzsgTveQsPFfsGzpFvDorO7ZLeGav1RaKP6Y5JUzxTZKYGT7B4Mut8xBcJ8FLXc5M4Z84GWlR-Q0evJntdZmABmnZH7B-TNMGgh1Q0rV4jO83wpurx8fHQEeS6kWrMm30yhdvqIt4VvkkWZfhLlx3XbIJI4r6fbaN5a5wyO1aZynz9A-SuETiSyppHlr7DUNmk3wx74MwRNWpOR_e2nj_dzKQw8bg527wH_HQF_9_rfK836qeDks7hh66JiiMSIJO_B_vXB3omHbAdHD8fjn2x55Krue9h_W9iHoYtl_Exbnu61R2GaFmeuDWdr7CBNi21jR7z9A0Val3_7A8V2Zms94L8fKH79gYKQPa9HqQ97ym7MfxZlu947n5Z16sOo5d5sJgRIC9yCqqVaZ_1kSb_yS6Ft6dIrpqDKW6N2BlFfZKdKuF0qRG-OzEAOO-zJs4arz625ZVy46ch0bIUnTw-LFgn2jWM1xcdGZN8zU9va3gn-nw4ObL-FtVRPH7q6diDf0ldQs64xeQUNGDi-ZtuGHY_A66PriZPeGsufbs-o3TVnDZTmHpZcG_V0CI6XAHBwbHMT5V9pyQuReQWeuyO4yGNeFE4M123DTSaqOzfq3Oj6W0D3f5gSL1JMn30xiovlPdRHPz7bDDamXhSOxXdv1hkmcUieR_7fLW_Ptpv5cTjZc-N9hzKPHnXo0GCUK-ZaiexUWLzmjTNaybxxQEySfStL_zhsTrHyl5lT-pOgpbtXLII0qWq8Zlyc60pHQZJq_HXU9m7M5koAq9ITb1yQtEq9kaG_zxACD-e5XZNrw5TJJ9a8WQQEExFk30cBDbFjfj4vBXSoTVkhlbullZRSQX8FCqrtH3FsL6hdVFe0SmnKLuDKjwPiUeKT6GJ1ReMy9mkRxGVVEBbHSeyDD0EEXhTR0I8v-BXxSOhRP_TSIAmiWRpXJAgKP_XSuEqiFAUerBlvZv11QKmWF_3VrSuf-kEQXTSsgEZfuUud7tYbQeH1hbrqzS66pUaB13Bt9MjBcNP0fyZj-00UXmMUeW--cBV57ooYVLu33haMN52Cc91-u-hUc_X919oG9zxckf8GAAD__1BY1YU">