| Issue |
179046
|
| Summary |
mlir-opt crash: UNREACHABLE executed in SelectOp::regionBuilder with index type
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
xvv4402
|
mlir-opt version: 22.1.0
mlir-opt crashes with an UNREACHABLE error when parsing a **linalg.select** operation that uses index type operands.
The **linalg.select** region builder expects numeric types (Integer or Float) but does not account for the index type, which is commonly used for pointer-as-index or offset calculations.
```mlir
module {
memref.global "private" @global_var : memref<10xf32>
func.func @main() {
%0 = gpu.lane_id
%1 = memref.get_global @global_var : memref<10xf32>
%2 = pdl_interp.create_type i32
%3 = memref.extract_aligned_pointer_as_index %1 : memref<10xf32> -> index
%c0 = arith.constant 0 : index
%c1 = arith.constant 1 : index
%4 = tensor.empty() : tensor<1xi64>
%5 = linalg.select ins(%3, %c0, %c1 : index, index, index) outs(%4 : tensor<1xi64>) -> tensor<1xi64>
return
}
}
```
```
unsupported non numeric type
UNREACHABLE executed at /llvm-project-llvmorg-22.1.0-rc1/mlir/lib/Dialect/Linalg/IR/LinalgOps.cpp:624!
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 test.mlir
1. MLIR Parser: custom op parser 'builtin.module'
2. MLIR Parser: custom op parser 'func.func'
3. MLIR Parser: custom op parser 'linalg.select'
#0 0x000062755d164e32 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/llvmorg-22.1.0-install/bin/mlir-opt+0x252fe32)
#1 0x000062755d1615af llvm::sys::RunSignalHandlers() (/llvmorg-22.1.0-install/bin/mlir-opt+0x252c5af)
#2 0x000062755d1616fc SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#3 0x00007ccf8ce45330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
#4 0x00007ccf8ce9eb2c __pthread_kill_implementation ./nptl/pthread_kill.c:44:76
#5 0x00007ccf8ce9eb2c __pthread_kill_internal ./nptl/pthread_kill.c:78:10
#6 0x00007ccf8ce9eb2c pthread_kill ./nptl/pthread_kill.c:89:10
#7 0x00007ccf8ce4527e raise ./signal/../sysdeps/posix/raise.c:27:6
#8 0x00007ccf8ce288ff abort ./stdlib/abort.c:81:7
#9 0x000062755d14412e (/llvmorg-22.1.0-install/bin/mlir-opt+0x250f12e)
#10 0x00006275630e4337 mlir::linalg::SelectOp::regionBuilder(mlir::ImplicitLocOpBuilder&, mlir::Block&, llvm::ArrayRef<mlir::NamedAttribute>, llvm::function_ref<mlir::InFlightDiagnostic ()>) (/llvmorg-22.1.0-install/bin/mlir-opt+0x84af337)
```
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