| Issue |
179047
|
| Summary |
mlir-opt crash: Assertion failure isa<To>(Val) in GenericAtomicRMWOp::parse when operand is a tensor instead of memref
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
xvv4402
|
mlir-opt version: llvmorg-22.1.0
A crash occurs in **mlir-opt** during parsing of the **memref.generic_atomic_rmw** operation. The parser attempts to llvm::cast<MemRefType> the input operand's type without prior validation. If the operand is a tensor (e.g., produced by tosa.variable_read), the cast fails and triggers an assertion.
```
module {
func.func @main() {
tosa.variable @var_x : tensor<10xf32>
%0 = emitc.literal "M_PI" : f32
%1 = arith.fptosi %0 : f32 to i32
%2 = ptr.type_offset f32 : index
%3 = vector.vscale
%4 = index.shru %2, %3
%5 = tosa.variable_read @var_x : tensor<10xf32>
memref.generic_atomic_rmw %5[%4] : tensor<10xf32> {
^bb0(%arg0: f32):
%6 = arith.sitofp %1 : i32 to f32
memref.atomic_yield %6 : f32
}
return
}
}
```
```
mlir-opt test.mlir
```
```
mlir-opt: llvm-project-llvmorg-22.1.0-rc1/llvm/include/llvm/Support/Casting.h:566: decltype(auto) llvm::cast(From&) [with To = mlir::MemRefType; From = mlir::Type]: Assertion `isa<To>(Val) && "cast<Ty>() argument of incompatible type!"' 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 test.mlir
1. MLIR Parser: custom op parser 'builtin.module'
2. MLIR Parser: custom op parser 'func.func'
3. MLIR Parser: custom op parser 'memref.generic_atomic_rmw'
#0 0x0000631425209e32 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (llvmorg-22.1.0-install/bin/mlir-opt+0x252fe32)
#1 0x00006314252065af llvm::sys::RunSignalHandlers() (llvmorg-22.1.0-install/bin/mlir-opt+0x252c5af)
#2 0x00006314252066fc SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#3 0x000073ba22445330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
#4 0x000073ba2249eb2c __pthread_kill_implementation ./nptl/pthread_kill.c:44:76
#5 0x000073ba2249eb2c __pthread_kill_internal ./nptl/pthread_kill.c:78:10
#6 0x000073ba2249eb2c pthread_kill ./nptl/pthread_kill.c:89:10
#7 0x000073ba2244527e raise ./signal/../sysdeps/posix/raise.c:27:6
#8 0x000073ba224288ff abort ./stdlib/abort.c:81:7
#9 0x000073ba2242881b _nl_load_domain ./intl/loadmsgcat.c:1177:9
#10 0x000073ba2243b517 (/lib/x86_64-linux-gnu/libc.so.6+0x3b517)
```
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