<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Issue</th>
<td>
<a href=https://github.com/llvm/llvm-project/issues/61163>61163</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>
[MLIR] `convert-linalg-to-affine-loops` pass triggers Assertion Failure `isValid'
</td>
</tr>
<tr>
<th>Labels</th>
<td>
new issue
</td>
</tr>
<tr>
<th>Assignees</th>
<td>
</td>
</tr>
<tr>
<th>Reporter</th>
<td>
sweead
</td>
</tr>
</table>
<pre>
The bug was tested on llvm 15, and has been fixed.
Steps to reprodcue:
```
mlir-opt test.mlir -pass-pipeline="func.func(tosa-to-linalg)" -func-bufferize -linalg-bufferize -convert-linalg-to-affine-loops
```
Test case:
```
func.func @add_zo(%arg0: tensor<2x9xi1>) -> tensor<2x9xi1> {
%zeros = "tosa.const"() {value = dense<true> : tensor<1x9xi1>} : () -> tensor<1x9xi1>
%1 = "tosa.add"(%arg0, %zeros) : (tensor<2x9xi1>, tensor<1x9xi1>) -> tensor<2x9xi1>
return %1 : tensor<2x9xi1>
}
```
Crash trace:
```
mlir-opt: /home/llvm15/mlir/lib/IR/BuiltinAttributes.cpp:1392: static mlir::DenseElementsAttr mlir::DenseIntOrFPElementsAttr::gettest(mlir::ShapedType, ArrayRef<char>): Assertion `isValid' 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/verify/202303/test.mlir -pass-pipeline=func.func(tosa-to-linalg) -func-bufferize -linalg-bufferize -convert-linalg-to-affine-loops
#0 0x000000000047f3aa llvm::sys::PrintStackTrace(llvm::test_ostream&, int) /home/llvm15/llvm/lib/Support/Unix/Signals.inc:569:11
#1 0x000000000047f55b PrintStackTraceSignalHandler(void*) /home/llvm15/llvm/lib/Support/Unix/Signals.inc:636:1
#2 0x000000000047dbd6 llvm::sys::RunSignalHandlers() /home/llvm15/llvm/lib/Support/Signals.cpp:103:5
#3 0x000000000047fc85 SignalHandler(int) /home/llvm15/llvm/lib/Support/Unix/Signals.inc:407:1
#4 0x00007fddcc649980 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x12980)
#5 0x00007fddcb539e87 raise /build/glibc-CVJwZb/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
#6 0x00007fddcb53b7f1 abort /build/glibc-CVJwZb/glibc-2.27/stdlib/abort.c:81:0
#7 0x00007fddcb52b3fa __assert_fail_base /build/glibc-CVJwZb/glibc-2.27/assert/assert.c:89:0
#8 0x00007fddcb52b472 (/lib/x86_64-linux-gnu/libc.so.6+0x30472)
#9 0x0000000002b742e3 mlir::DenseIntOrFPElementsAttr::gettest(mlir::ShapedType, llvm::ArrayRef<char>) /home/llvm15/mlir/lib/IR/BuiltinAttributes.cpp:1394:20
#10 0x0000000002b762f7 mlir::DenseElementsAttr::reshape(mlir::ShapedType) /home/llvm15/mlir/lib/IR/BuiltinAttributes.cpp:1285:10
#11 0x000000000202d6a4 mlir::OpFoldResult mlir::foldReshapeOp<mlir::tensor::CollapseShapeOp, mlir::tensor::ExpandShapeOp>(mlir::tensor::CollapseShapeOp, llvm::ArrayRef<mlir::Attribute>) /home/llvm15/mlir/include/mlir/Dialect/Utils/ReshapeOpsUtils.h:94:21
#12 0x000000000202d560 mlir::tensor::CollapseShapeOp::fold(llvm::ArrayRef<mlir::Attribute>) /home/llvm15/mlir/lib/Dialect/Tensor/IR/TensorOps.cpp:953:10
#13 0x000000000200eee9 mlir::LogicalResult mlir::Op<mlir::tensor::CollapseShapeOp, mlir::OpTrait::ZeroRegions, mlir::OpTrait::OneResult, mlir::OpTrait::OneTypedResult<mlir::TensorType>::Impl, mlir::OpTrait::ZeroSuccessors, mlir::OpTrait::OneOperand, mlir::OpTrait::OpInvariants, mlir::MemoryEffectOpInterface::Trait>::foldSingleResultHook<mlir::tensor::CollapseShapeOp>(mlir::Operation*, llvm::ArrayRef<mlir::Attribute>, llvm::SmallVectorImpl<mlir::OpFoldResult>&) /home/llvm15/mlir/include/mlir/IR/OpDefinition.h:1808:49
#14 0x000000000200ee91 std::enable_if<llvm::is_one_of<mlir::OpTrait::OneResult<mlir::tensor::CollapseShapeOp>, mlir::OpTrait::ZeroRegions<mlir::tensor::CollapseShapeOp>, mlir::OpTrait::OneResult<mlir::tensor::CollapseShapeOp>, mlir::OpTrait::OneTypedResult<mlir::TensorType>::Impl<mlir::tensor::CollapseShapeOp>, mlir::OpTrait::ZeroSuccessors<mlir::tensor::CollapseShapeOp>, mlir::OpTrait::OneOperand<mlir::tensor::CollapseShapeOp>, mlir::OpTrait::OpInvariants<mlir::tensor::CollapseShapeOp>, mlir::MemoryEffectOpInterface::Trait<mlir::tensor::CollapseShapeOp>>::value && detect_has_single_result_fold<mlir::tensor::CollapseShapeOp>::value, llvm::unique_function<mlir::LogicalResult (mlir::Operation*, llvm::ArrayRef<mlir::Attribute>, llvm::SmallVectorImpl<mlir::OpFoldResult>&) const>>::type mlir::Op<mlir::tensor::CollapseShapeOp, mlir::OpTrait::ZeroRegions, mlir::OpTrait::OneResult, mlir::OpTrait::OneTypedResult<mlir::TensorType>::Impl, mlir::OpTrait::ZeroSuccessors, mlir::OpTrait::OneOperand, mlir::OpTrait::OpInvariants, mlir::MemoryEffectOpInterface::Trait>::getFoldHookFnImpl<mlir::tensor::CollapseShapeOp>()::'lambda'(mlir::Operation*, llvm::ArrayRef<mlir::Attribute>, llvm::SmallVectorImpl<mlir::OpFoldResult>&)::operator()(mlir::Operation*, llvm::ArrayRef<mlir::Attribute>, llvm::SmallVectorImpl<mlir::OpFoldResult>&) const /home/llvm15/mlir/include/mlir/IR/OpDefinition.h:1772:14
#15 0x000000000200ee35 mlir::LogicalResult llvm::detail::UniqueFunctionBase<mlir::LogicalResult, mlir::Operation*, llvm::ArrayRef<mlir::Attribute>, llvm::SmallVectorImpl<mlir::OpFoldResult>&>::CallImpl<std::enable_if<llvm::is_one_of<mlir::OpTrait::OneResult<mlir::tensor::CollapseShapeOp>, mlir::OpTrait::ZeroRegions<mlir::tensor::CollapseShapeOp>, mlir::OpTrait::OneResult<mlir::tensor::CollapseShapeOp>, mlir::OpTrait::OneTypedResult<mlir::TensorType>::Impl<mlir::tensor::CollapseShapeOp>, mlir::OpTrait::ZeroSuccessors<mlir::tensor::CollapseShapeOp>, mlir::OpTrait::OneOperand<mlir::tensor::CollapseShapeOp>, mlir::OpTrait::OpInvariants<mlir::tensor::CollapseShapeOp>, mlir::MemoryEffectOpInterface::Trait<mlir::tensor::CollapseShapeOp>>::value && detect_has_single_result_fold<mlir::tensor::CollapseShapeOp>::value, llvm::unique_function<mlir::LogicalResult (mlir::Operation*, llvm::ArrayRef<mlir::Attribute>, llvm::SmallVectorImpl<mlir::OpFoldResult>&) const>>::type mlir::Op<mlir::tensor::CollapseShapeOp, mlir::OpTrait::ZeroRegions, mlir::OpTrait::OneResult, mlir::OpTrait::OneTypedResult<mlir::TensorType>::Impl, mlir::OpTrait::ZeroSuccessors, mlir::OpTrait::OneOperand, mlir::OpTrait::OpInvariants, mlir::MemoryEffectOpInterface::Trait>::getFoldHookFnImpl<mlir::tensor::CollapseShapeOp>()::'lambda'(mlir::Operation*, llvm::ArrayRef<mlir::Attribute>, llvm::SmallVectorImpl<mlir::OpFoldResult>&) const>(void*, mlir::Operation*, llvm::ArrayRef<mlir::Attribute>, llvm::SmallVectorImpl<mlir::OpFoldResult>&) /home/llvm15/llvm/include/llvm/ADT/FunctionExtras.h:222:12
#16 0x0000000002c8351f llvm::unique_function<mlir::LogicalResult (mlir::Operation*, llvm::ArrayRef<mlir::Attribute>, llvm::SmallVectorImpl<mlir::OpFoldResult>&) const>::operator()(mlir::Operation*, llvm::ArrayRef<mlir::Attribute>, llvm::SmallVectorImpl<mlir::OpFoldResult>&) const /home/llvm15/llvm/include/llvm/ADT/FunctionExtras.h:410:12
#17 0x0000000002c82a9c mlir::RegisteredOperationName::foldHook(mlir::Operation*, llvm::ArrayRef<mlir::Attribute>, llvm::SmallVectorImpl<mlir::OpFoldResult>&) const /home/llvm15/mlir/include/mlir/IR/OperationSupport.h:334:12
#18 0x0000000002c7b1ee mlir::Operation::fold(llvm::ArrayRef<mlir::Attribute>, llvm::SmallVectorImpl<mlir::OpFoldResult>&) /home/llvm15/mlir/lib/IR/Operation.cpp:491:31
#19 0x0000000002abd36f mlir::OperationFolder::tryToFold(mlir::OpBuilder&, mlir::Operation*, llvm::SmallVectorImpl<mlir::Value>&, llvm::function_ref<void (mlir::Operation*)>) /home/llvm15/mlir/lib/Transforms/Utils/FoldUtils.cpp:254:18
#20 0x0000000002abcfa8 mlir::OperationFolder::tryToFold(mlir::Operation*, llvm::function_ref<void (mlir::Operation*)>, llvm::function_ref<void (mlir::Operation*)>, bool*) /home/llvm15/mlir/lib/Transforms/Utils/FoldUtils.cpp:90:14
#21 0x0000000002ac5922 (anonymous namespace)::GreedyPatternRewriteDriver::simplify(llvm::MutableArrayRef<mlir::Region>) /home/llvm15/mlir/lib/Transforms/Utils/GreedyPatternRewriteDriver.cpp:237:29
#22 0x0000000002ac5108 mlir::applyPatternsAndFoldGreedily(llvm::MutableArrayRef<mlir::Region>, mlir::FrozenRewritePatternSet const&, mlir::GreedyRewriteConfig) /home/llvm15/mlir/lib/Transforms/Utils/GreedyPatternRewriteDriver.cpp:404:8
#23 0x00000000006eb442 mlir::applyPatternsAndFoldGreedily(mlir::Operation*, mlir::FrozenRewritePatternSet const&, mlir::GreedyRewriteConfig) /home/llvm15/mlir/include/mlir/Transforms/GreedyPatternRewriteDriver.h:71:10
#24 0x0000000000fa9782 void (anonymous namespace)::lowerLinalgToLoopsImpl<mlir::AffineForOp>(mlir::func::FuncOp) /home/llvm15/mlir/lib/Dialect/Linalg/Transforms/Loops.cpp:310:9
#25 0x0000000000fa9512 (anonymous namespace)::LowerToAffineLoops::runOnOperation() /home/llvm15/mlir/lib/Dialect/Linalg/Transforms/Loops.cpp:320:3
#26 0x00000000029e4e5a mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) /home/llvm15/mlir/lib/Pass/Pass.cpp:471:21
#27 0x00000000029e5454 mlir::detail::OpToOpPassAdaptor::runPipeline(mlir::OpPassManager&, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int, mlir::PassInstrumentor*, mlir::PassInstrumentation::PipelineParentInfo const*) /home/llvm15/mlir/lib/Pass/Pass.cpp:534:16
#28 0x00000000029ea868 mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::$_12::operator()(mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo&) const /home/llvm15/mlir/lib/Pass/Pass.cpp:754:36
#29 0x00000000029ea4d9 mlir::LogicalResult mlir::failableParallelForEach<__gnu_cxx::__normal_iterator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo*, std::vector<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo, std::allocator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo>>>, mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::$_12&>(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)::$_12&) /home/llvm15/mlir/include/mlir/IR/Threading.h:46:18
#30 0x00000000029e6733 mlir::LogicalResult mlir::failableParallelForEach<std::vector<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo, std::allocator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo>>&, mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::$_12&>(mlir::MLIRContext*, std::vector<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo, std::allocator<mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::OpPMInfo>>&, mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool)::$_12&) /home/llvm15/mlir/include/mlir/IR/Threading.h:92:10
#31 0x00000000029e5fed mlir::detail::OpToOpPassAdaptor::runOnOperationAsyncImpl(bool) /home/llvm15/mlir/lib/Pass/Pass.cpp:764:14
#32 0x00000000029e5107 mlir::detail::OpToOpPassAdaptor::runOnOperation(bool) /home/llvm15/mlir/lib/Pass/Pass.cpp:655:5
#33 0x00000000029e4e4b mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) /home/llvm15/mlir/lib/Pass/Pass.cpp:468:5
#34 0x00000000029e5454 mlir::detail::OpToOpPassAdaptor::runPipeline(mlir::OpPassManager&, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int, mlir::PassInstrumentor*, mlir::PassInstrumentation::PipelineParentInfo const*) /home/llvm15/mlir/lib/Pass/Pass.cpp:534:16
#35 0x00000000029e6d1c mlir::PassManager::runPasses(mlir::Operation*, mlir::AnalysisManager) /home/llvm15/mlir/lib/Pass/Pass.cpp:837:10
#36 0x00000000029e6c3c mlir::PassManager::run(mlir::Operation*) /home/llvm15/mlir/lib/Pass/Pass.cpp:817:60
#37 0x00000000029de27c performActions(llvm::test_ostream&, bool, bool, llvm::SourceMgr&, mlir::MLIRContext*, llvm::function_ref<mlir::LogicalResult (mlir::PassManager&)>) /home/llvm15/mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:84:17
#38 0x00000000029ddfa3 processBuffer(llvm::test_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, bool, bool, bool, bool, llvm::function_ref<mlir::LogicalResult (mlir::PassManager&)>, mlir::DialectRegistry&, llvm::ThreadPool*) /home/llvm15/mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:124:12
#39 0x00000000029dddaf mlir::MlirOptMain(llvm::test_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<mlir::LogicalResult (mlir::PassManager&)>, mlir::DialectRegistry&, bool, bool, bool, bool, bool)::$_0::operator()(std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::test_ostream&) const /home/llvm15/mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:164:12
#40 0x00000000029ddccd mlir::LogicalResult llvm::function_ref<mlir::LogicalResult (std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::test_ostream&)>::callback_fn<mlir::MlirOptMain(llvm::test_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<mlir::LogicalResult (mlir::PassManager&)>, mlir::DialectRegistry&, bool, bool, bool, bool, bool)::$_0>(long, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::test_ostream&) /home/llvm15/llvm/include/llvm/ADT/STLFunctionalExtras.h:45:12
#41 0x0000000002b0ad09 llvm::function_ref<mlir::LogicalResult (std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::test_ostream&)>::operator()(std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::test_ostream&) const /home/llvm15/llvm/include/llvm/ADT/STLFunctionalExtras.h:68:12
#42 0x0000000002b0a2e5 mlir::splitAndProcessBuffer(std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<mlir::LogicalResult (std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::test_ostream&)>, llvm::test_ostream&, bool, bool) /home/llvm15/mlir/lib/Support/ToolUtilities.cpp:28:12
#43 0x00000000029dd039 mlir::MlirOptMain(llvm::test_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::function_ref<mlir::LogicalResult (mlir::PassManager&)>, mlir::DialectRegistry&, bool, bool, bool, bool, bool) /home/llvm15/mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:169:10
#44 0x00000000029dd17a mlir::MlirOptMain(llvm::test_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, mlir::PassPipelineCLParser const&, mlir::DialectRegistry&, bool, bool, bool, bool, bool) /home/llvm15/mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:187:10
#45 0x00000000029ddae6 mlir::MlirOptMain(int, char**, llvm::StringRef, mlir::DialectRegistry&, bool) /home/llvm15/mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:269:14
#46 0x0000000000411f4e main /home/llvm15/mlir/tools/mlir-opt/mlir-opt.cpp:247:7
#47 0x00007fddcb51cc87 __libc_start_main /build/glibc-CVJwZb/glibc-2.27/csu/../csu/libc-start.c:344:0
#48 0x0000000000411dda _start (/home/llvm15/mlir/build/bin/mlir-opt+0x411dda)
Aborted (core dumped)
```
</pre>
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