| Issue |
179401
|
| Summary |
[mlir-opt] Crash in getMixedValues triggered by shape.mul consuming affine.delinearize_index results during canonicalization
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
compilerStudyer
|
mlir-opt crashes with an assertion failure in mlir::getMixedValues during the **--canonicalize** pass.
The crash occurs when a **shape.mul** operation attempts to process results from affine.delinearize_index. This triggers a folding sequence where the dynamic basis of the delinearization operation causes an internal static/dynamic count mismatch.
```mlir
module {
func.func @main() {
%0 = ub.poison : index
%1 = gpu.cluster_id x
%2 = affine.delinearize_index %0 into (%1) : index
%3 = affine.delinearize_index %1 into (%2) : index
%4 = ml_program.token
%5 = shape.mul %3, %2 : index, index -> index
return
}
}
```
```
mlir-opt --canonicalize test.mlir
```
```
mlir-opt: llvm-project-llvmorg-22.1.0-rc1/mlir/lib/Dialect/Utils/StaticValueUtils.cpp:214: llvm::SmallVector<mlir::OpFoldResult> mlir::getMixedValues(llvm::ArrayRef<long int>, ValueRange, MLIRContext*): Assertion `dynamicValues.size() == static_cast<size_t>(llvm::count_if( staticValues, ShapedType::isDynamic)) && "expected the rank of dynamic values to match the number of " "values known to be dynamic"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
Stack dump:
0. Program arguments: llvmorg-22.1.0-install/bin/mlir-opt --canonicalize test.mlir
#0 0x000064a7fff70e32 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (llvmorg-22.1.0-install/bin/mlir-opt+0x252fe32)
#1 0x000064a7fff6d5af llvm::sys::RunSignalHandlers() (llvmorg-22.1.0-install/bin/mlir-opt+0x252c5af)
#2 0x000064a7fff6d6fc SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#3 0x00007dd07ce45330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
#4 0x00007dd07ce9eb2c __pthread_kill_implementation ./nptl/pthread_kill.c:44:76
#5 0x00007dd07ce9eb2c __pthread_kill_internal ./nptl/pthread_kill.c:78:10
#6 0x00007dd07ce9eb2c pthread_kill ./nptl/pthread_kill.c:89:10
#7 0x00007dd07ce4527e raise ./signal/../sysdeps/posix/raise.c:27:6
#8 0x00007dd07ce288ff abort ./stdlib/abort.c:81:7
#9 0x00007dd07ce2881b _nl_load_domain ./intl/loadmsgcat.c:1177:9
#10 0x00007dd07ce3b517 (/lib/x86_64-linux-gnu/libc.so.6+0x3b517)
```
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