<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Issue</th>
<td>
<a href=https://github.com/llvm/llvm-project/issues/122258>122258</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>
[Mlir] --linalg-specialize-generic-ops crashes in Operation.h:399:37
</td>
</tr>
<tr>
<th>Labels</th>
<td>
mlir:linalg,
crash
</td>
</tr>
<tr>
<th>Assignees</th>
<td>
</td>
</tr>
<tr>
<th>Reporter</th>
<td>
Emilyaxe
</td>
</tr>
</table>
<pre>
git version: 56600c11ad
system: `Ubuntu 18.04.6 LTS`
reproduce with: `mlir-opt a.mlir --linalg-specialize-generic-ops`
a.mlir:
```
#map = affine_map<(d0, d1) -> (d0, d1)>
#map1 = affine_map<(d0, d1, d2) -> (d0, d2)>
#map2 = affine_map<(d0, d1, d2) -> (d1, d2)>
#map3 = affine_map<(d0, d1, d2) -> (d0, d1)>
module {
func.func private @func2(%arg0: tensor<1x31x8xi32>) -> tensor<1x31x31xi32> {
%c-2351_i32 = arith.constant -2351 : i32
%c0_i32 = arith.constant 0 : i32
%0 = tensor.empty() : tensor<31x8xi32>
%1 = linalg.generic {indexing_maps = [#map], iterator_types = ["parallel", "parallel"]} outs(%0 : tensor<31x8xi32>) {
^bb0(%out: i32):
linalg.yield %c-2351_i32 : i32
} -> tensor<31x8xi32>
%2 = tensor.empty() : tensor<31x31xi32>
%3 = linalg.generic {indexing_maps = [#map], iterator_types = ["parallel", "parallel"]} outs(%2 : tensor<31x31xi32>) {
^bb0(%out: i32):
linalg.yield %c0_i32 : i32
} -> tensor<31x31xi32>
%4 = linalg.generic {indexing_maps = [#map1, #map2, #map3], iterator_types = ["parallel", "parallel", "reduction"]} ins(%1, %1 : tensor<31x8xi32>, tensor<31x8xi32>) outs(%3 : tensor<31x31xi32>) {
^bb0(%in: i32, %in_0: i32, %out: i32):
linalg.yield %out : i32
} -> tensor<31x31xi32>
%5 = tensor.empty() : tensor<31x31xi32>
%6 = linalg.generic {indexing_maps = [#map, #map], iterator_types = ["parallel", "parallel"]} ins(%4 : tensor<31x31xi32>) outs(%5 : tensor<31x31xi32>) {
^bb0(%in: i32, %out: i32):
linalg.yield %in : i32
} -> tensor<31x31xi32>
%expanded = tensor.expand_shape %6 [[0, 1], [2]] output_shape [1, 31, 31] : tensor<31x31xi32> into tensor<1x31x31xi32>
return %expanded : tensor<1x31x31xi32>
}
}
```
stack trace:
```
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-debug/llvm-project/build/bin/mlir-opt a.mlir --linalg-specialize-generic-ops
#0 0x000056326dcbe799 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /data/szy/MLIR/llvm-debug/llvm-project/llvm/lib/Support/Unix/Signals.inc:723:11
#1 0x000056326dcbec4b PrintStackTraceSignalHandler(void*) /data/szy/MLIR/llvm-debug/llvm-project/llvm/lib/Support/Unix/Signals.inc:798:1
#2 0x000056326dcbce7f llvm::sys::RunSignalHandlers() /data/szy/MLIR/llvm-debug/llvm-project/llvm/lib/Support/Signals.cpp:105:5
#3 0x000056326dcbf31e SignalHandler(int) /data/szy/MLIR/llvm-debug/llvm-project/llvm/lib/Support/Unix/Signals.inc:413:1
#4 0x00007f4168d7e420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
#5 0x000056326de1047c mlir::Operation::getNumResults() /data/szy/MLIR/llvm-debug/llvm-project/mlir/include/mlir/IR/Operation.h:399:37
#6 0x000056326f0ef163 mlir::linalg::detail::isContractionBody(mlir::Block&, llvm::function_ref<bool (mlir::Operation*, mlir::Operation*)>, llvm::raw_ostream&) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Dialect/Linalg/IR/LinalgInterfaces.cpp:284:36
#7 0x000056326f0f010c bool isContractionBody<mlir::arith::MulFOp, mlir::arith::AddFOp, mlir::arith::MulIOp, mlir::arith::AddIOp, mlir::complex::MulOp, mlir::complex::AddOp, mlir::arith::AndIOp, mlir::arith::OrIOp>(mlir::Block&) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Dialect/Linalg/IR/LinalgInterfaces.cpp:346:3
#8 0x000056326f0eff78 mlir::linalg::detail::isContractionInterfaceImpl(mlir::Operation*, mlir::linalg::ContractionDimensions*) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Dialect/Linalg/IR/LinalgInterfaces.cpp:493:7
#9 0x000056326f0f0242 mlir::linalg::isaContractionOpInterface(mlir::linalg::LinalgOp) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Dialect/Linalg/IR/LinalgInterfaces.cpp:535:64
#10 0x000056326f4f29cf mlir::linalg::specializeGenericOp(mlir::RewriterBase&, mlir::linalg::GenericOp) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Dialect/Linalg/Transforms/Specialize.cpp:330:7
#11 0x000056326f4f8701 mlir::linalg::LinalgSpecializationPattern::returningMatchAndRewrite(mlir::linalg::GenericOp, mlir::PatternRewriter&) const /data/szy/MLIR/llvm-debug/llvm-project/mlir/include/mlir/Dialect/Linalg/Transforms/Transforms.h:1484:12
#12 0x000056326f4f86ad mlir::linalg::LinalgSpecializationPattern::matchAndRewrite(mlir::linalg::GenericOp, mlir::PatternRewriter&) const /data/szy/MLIR/llvm-debug/llvm-project/mlir/include/mlir/Dialect/Linalg/Transforms/Transforms.h:1489:12
#13 0x000056326ee125cb mlir::detail::OpOrInterfaceRewritePatternBase<mlir::linalg::GenericOp>::matchAndRewrite(mlir::Operation*, mlir::PatternRewriter&) const /data/szy/MLIR/llvm-debug/llvm-project/mlir/include/mlir/IR/PatternMatch.h:331:12
#14 0x000056327787252f 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&)>)::$_0::operator()() const /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Rewrite/PatternApplicator.cpp:212:31
#15 0x00005632778723a5 void llvm::function_ref<void ()>::callback_fn<mlir::PatternApplicator::matchAndRewrite(mlir::Operation*, mlir::PatternRewriter&, llvm::function_ref<bool (mlir::Pattern const&)>, llvm::function_ref<void (mlir::Pattern const&)>, llvm::function_ref<llvm::LogicalResult (mlir::Pattern const&)>)::$_0>(long) /data/szy/MLIR/llvm-debug/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:46:5
#16 0x000056326dce2859 llvm::function_ref<void ()>::operator()() const /data/szy/MLIR/llvm-debug/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:69:5
#17 0x0000563277873bdb void mlir::MLIRContext::executeAction<mlir::ApplyPatternAction, mlir::Pattern const&>(llvm::function_ref<void ()>, llvm::ArrayRef<mlir::IRUnit>, mlir::Pattern const&) /data/szy/MLIR/llvm-debug/llvm-project/mlir/include/mlir/IR/MLIRContext.h:281:3
#18 0x0000563277870f4a 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&)>) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Rewrite/PatternApplicator.cpp:233:9
#19 0x00005632736bbc08 (anonymous namespace)::GreedyPatternRewriteDriver::processWorklist() /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Transforms/Utils/GreedyPatternRewriteDriver.cpp:615:17
#20 0x00005632736baf91 (anonymous namespace)::RegionPatternRewriteDriver::simplify(bool*) &&::$_2::operator()() const /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Transforms/Utils/GreedyPatternRewriteDriver.cpp:874:30
#21 0x00005632736baf65 void llvm::function_ref<void ()>::callback_fn<(anonymous namespace)::RegionPatternRewriteDriver::simplify(bool*) &&::$_2>(long) /data/szy/MLIR/llvm-debug/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:46:5
#22 0x000056326dce2859 llvm::function_ref<void ()>::operator()() const /data/szy/MLIR/llvm-debug/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:69:5
#23 0x00005632736ba68b void mlir::MLIRContext::executeAction<(anonymous namespace)::GreedyPatternRewriteIteration, long&>(llvm::function_ref<void ()>, llvm::ArrayRef<mlir::IRUnit>, long&) /data/szy/MLIR/llvm-debug/llvm-project/mlir/include/mlir/IR/MLIRContext.h:281:3
#24 0x00005632736b8ce6 (anonymous namespace)::RegionPatternRewriteDriver::simplify(bool*) && /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Transforms/Utils/GreedyPatternRewriteDriver.cpp:887:3
#25 0x00005632736b89ff mlir::applyPatternsAndFoldGreedily(mlir::Region&, mlir::FrozenRewritePatternSet const&, mlir::GreedyRewriteConfig, bool*) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Transforms/Utils/GreedyPatternRewriteDriver.cpp:919:47
#26 0x000056326decb795 mlir::applyPatternsAndFoldGreedily(mlir::Operation*, mlir::FrozenRewritePatternSet const&, mlir::GreedyRewriteConfig, bool*) /data/szy/MLIR/llvm-debug/llvm-project/mlir/include/mlir/Transforms/GreedyPatternRewriteDriver.h:159:9
#27 0x000056326f4f4fdb (anonymous namespace)::LinalgSpecializeGenericOpsPass::runOnOperation() /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Dialect/Linalg/Transforms/Specialize.cpp:352:14
#28 0x00005632735b63f4 mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int)::$_1::operator()() const /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Pass/Pass.cpp:0:17
#29 0x00005632735b6395 void llvm::function_ref<void ()>::callback_fn<mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int)::$_1>(long) /data/szy/MLIR/llvm-debug/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:46:5
#30 0x000056326dce2859 llvm::function_ref<void ()>::operator()() const /data/szy/MLIR/llvm-debug/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:69:5
#31 0x00005632735b913b void mlir::MLIRContext::executeAction<mlir::PassExecutionAction, mlir::Pass&>(llvm::function_ref<void ()>, llvm::ArrayRef<mlir::IRUnit>, mlir::Pass&) /data/szy/MLIR/llvm-debug/llvm-project/mlir/include/mlir/IR/MLIRContext.h:281:3
#32 0x00005632735b1f97 mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Pass/Pass.cpp:532:17
#33 0x00005632735b24b7 mlir::detail::OpToOpPassAdaptor::runPipeline(mlir::OpPassManager&, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int, mlir::PassInstrumentor*, mlir::PassInstrumentation::PipelineParentInfo const*) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Pass/Pass.cpp:592:16
#34 0x00005632735b3e08 mlir::PassManager::runPasses(mlir::Operation*, mlir::AnalysisManager) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Pass/Pass.cpp:905:10
#35 0x00005632735b3d43 mlir::PassManager::run(mlir::Operation*) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Pass/Pass.cpp:885:60
#36 0x00005632735a5f95 performActions(llvm::raw_ostream&, std::shared_ptr<llvm::SourceMgr> const&, mlir::MLIRContext*, mlir::MlirOptMainConfig const&) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:474:17
#37 0x00005632735a5b86 processBuffer(llvm::raw_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, mlir::MlirOptMainConfig const&, mlir::DialectRegistry&, llvm::ThreadPoolInterface*) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:542:12
#38 0x00005632735a594c mlir::MlirOptMain(llvm::raw_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&)::$_0::operator()(std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&) const /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:625:12
#39 0x00005632735a58e6 llvm::LogicalResult llvm::function_ref<llvm::LogicalResult (std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>::callback_fn<mlir::MlirOptMain(llvm::raw_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&)::$_0>(long, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&) /data/szy/MLIR/llvm-debug/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:46:12
#40 0x00005632737224f2 llvm::function_ref<llvm::LogicalResult (std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>::operator()(std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&) const /data/szy/MLIR/llvm-debug/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:69:12
#41 0x0000563273721b05 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-debug/llvm-project/mlir/lib/Support/ToolUtilities.cpp:27:12
#42 0x00005632735a2413 mlir::MlirOptMain(llvm::raw_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:628:10
#43 0x00005632735a27b5 mlir::MlirOptMain(int, char**, llvm::StringRef, llvm::StringRef, mlir::DialectRegistry&) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:669:14
#44 0x00005632735a2988 mlir::MlirOptMain(int, char**, llvm::StringRef, mlir::DialectRegistry&) /data/szy/MLIR/llvm-debug/llvm-project/mlir/lib/Tools/mlir-opt/MlirOptMain.cpp:685:10
#45 0x000056326dc47de3 main /data/szy/MLIR/llvm-debug/llvm-project/mlir/tools/mlir-opt/mlir-opt.cpp:323:33
#46 0x00007f416839c083 __libc_start_main /build/glibc-LcI20x/glibc-2.31/csu/../csu/libc-start.c:342:3
#47 0x000056326dc479fe _start (/data/szy/MLIR/llvm-debug/llvm-project/build/bin/mlir-opt+0x26519fe)
```
</pre>
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