| Issue |
173860
|
| Summary |
mlir-opt --convert-scf-to-openmp crashes on scf.parallel reduction with vector element type
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
Subway2023
|
## Description
mlir-opt --convert-scf-to-openmp crashes when lowering an scf.parallel that performs a reduction on a vector element type (vector<2xi1>).
## Reproduce
mlir-opt version: 21.1.8
location: If the `scf.parallel` operation is commented out, the crash no longer occurs.
```mlir
module {
func.func @main() {
%0 = vector.constant_mask [1] : vector<2xi1>
%c0 = arith.constant 0 : index
%c1 = arith.constant 1 : index
%c2 = arith.constant 2 : index
%result = scf.parallel (%arg0) = (%c0) to (%c2) step (%c1) init(%0) -> vector<2xi1> {
%val = vector.constant_mask [1] : vector<2xi1>
scf.reduce (%val : vector<2xi1>) {
^bb0(%lhs : vector<2xi1>, %rhs: vector<2xi1>):
%res = arith.ori %lhs, %rhs : vector<2xi1>
scf.reduce.return %res : vector<2xi1>
}
}
return
}
}
```
```
mlir-opt --convert-scf-to-openmp test.mlir
```
```
mlir-opt: /mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/mlir/lib/IR/Types.cpp:123: unsigned int mlir::Type::getIntOrFloatBitWidth() const: Assertion `isIntOrFloat() && "only integers and floats have a bitwidth"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0. Program arguments: /mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt --convert-scf-to-openmp /mnt/sdd1/sbw/mlir/data/genProgram_1224_filtered/genProgram_1224_valid/250327_ff00_5.mlir
#0 0x0000556b73ffa612 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x20a1612)
#1 0x0000556b73ff6d7f llvm::sys::RunSignalHandlers() (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x209dd7f)
#2 0x0000556b73ff6ecc SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#3 0x000070c3fb645330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
#4 0x000070c3fb69eb2c __pthread_kill_implementation ./nptl/pthread_kill.c:44:76
#5 0x000070c3fb69eb2c __pthread_kill_internal ./nptl/pthread_kill.c:78:10
#6 0x000070c3fb69eb2c pthread_kill ./nptl/pthread_kill.c:89:10
#7 0x000070c3fb64527e raise ./signal/../sysdeps/posix/raise.c:27:6
#8 0x000070c3fb6288ff abort ./stdlib/abort.c:81:7
#9 0x000070c3fb62881b _nl_load_domain ./intl/loadmsgcat.c:1177:9
#10 0x000070c3fb63b517 (/lib/x86_64-linux-gnu/libc.so.6+0x3b517)
#11 0x0000556b779f9b76 mlir::Type::getIntOrFloatBitWidth() const (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x5aa0b76)
#12 0x0000556b7790615b mlir::Builder::getIntegerAttr(mlir::Type, long) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x59ad15b)
#13 0x0000556b7754cba9 declareReduction(mlir::PatternRewriter&, mlir::scf::ReduceOp, long) SCFToOpenMP.cpp:0:0
#14 0x0000556b7754db9a (anonymous namespace)::ParallelOpLowering::matchAndRewrite(mlir::scf::ParallelOp, mlir::PatternRewriter&) const SCFToOpenMP.cpp:0:0
#15 0x0000556b7a91c08a 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&)>) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x89c308a)
#16 0x0000556b7785a6fe (anonymous namespace)::OperationLegalizer::legalize(mlir::Operation*, mlir::ConversionPatternRewriter&) DialectConversion.cpp:0:0
#17 0x0000556b7785acae mlir::OperationConverter::convert(mlir::ConversionPatternRewriter&, mlir::Operation*) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x5901cae)
#18 0x0000556b7785f57c mlir::OperationConverter::convertOperations(llvm::ArrayRef<mlir::Operation*>) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x590657c)
#19 0x0000556b77860bba applyConversion(llvm::ArrayRef<mlir::Operation*>, mlir::ConversionTarget const&, mlir::FrozenRewritePatternSet const&, mlir::ConversionConfig, (anonymous namespace)::OpConversionMode) DialectConversion.cpp:0:0
#20 0x0000556b77860cf2 mlir::applyPartialConversion(mlir::Operation*, mlir::ConversionTarget const&, mlir::FrozenRewritePatternSet const&, mlir::ConversionConfig) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x5907cf2)
#21 0x0000556b7754733c (anonymous namespace)::applyPatterns(mlir::ModuleOp, unsigned int) SCFToOpenMP.cpp:0:0
#22 0x0000556b775484ea (anonymous namespace)::SCFToOpenMPPass::runOnOperation() SCFToOpenMP.cpp:0:0
#23 0x0000556b777af07e mlir::detail::OpToOpPassAdaptor::run(mlir::Pass*, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x585607e)
#24 0x0000556b777af4c1 mlir::detail::OpToOpPassAdaptor::runPipeline(mlir::OpPassManager&, mlir::Operation*, mlir::AnalysisManager, bool, unsigned int, mlir::PassInstrumentor*, mlir::PassInstrumentation::PipelineParentInfo const*) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x58564c1)
#25 0x0000556b777b0523 mlir::PassManager::run(mlir::Operation*) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x5857523)
#26 0x0000556b777a00a7 performActions(llvm::raw_ostream&, std::shared_ptr<llvm::SourceMgr> const&, mlir::MLIRContext*, mlir::MlirOptMainConfig const&) MlirOptMain.cpp:0:0
#27 0x0000556b777a09c6 processBuffer(llvm::raw_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, mlir::MlirOptMainConfig const&, mlir::DialectRegistry&, llvm::ThreadPoolInterface*) MlirOptMain.cpp:0:0
#28 0x0000556b777a0b8c 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&)::'lambda'(std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&)>(long, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, llvm::raw_ostream&) MlirOptMain.cpp:0:0
#29 0x0000556b778b624e 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) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x595d24e)
#30 0x0000556b77799080 mlir::MlirOptMain(llvm::raw_ostream&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer>>, mlir::DialectRegistry&, mlir::MlirOptMainConfig const&) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x5840080)
#31 0x0000556b777a0cf0 mlir::MlirOptMain(int, char**, llvm::StringRef, llvm::StringRef, mlir::DialectRegistry&) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x5847cf0)
#32 0x0000556b777a11ef mlir::MlirOptMain(int, char**, llvm::StringRef, mlir::DialectRegistry&) (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x58481ef)
#33 0x0000556b73f12577 main (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x1fb9577)
#34 0x000070c3fb62a1ca __libc_start_call_main ./csu/../sysdeps/nptl/libc_start_call_main.h:74:3
#35 0x000070c3fb62a28b call_init ./csu/../csu/libc-start.c:128:20
#36 0x000070c3fb62a28b __libc_start_main ./csu/../csu/libc-start.c:347:5
#37 0x0000556b73fcb665 _start (/mnt/sdd1/sbw/mlir/tool/llvm-project-llvmorg-21.1.8/build/bin/mlir-opt+0x2072665)
Aborted (core dumped)
```
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