| Issue |
165657
|
| Summary |
arith.select errors when using vector as condition
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
Subway2023
|
**Describe the bug**
When using `arith.select` with a vector as the condition operand, MLIR fails to parse the IR and reports an SSA operand error. The operation works fine with scalar `i1` conditions but not with `vector<i1>`.
**To Reproduce**
```mlir
module {
func.func @main() {
%vcond = arith.constant dense<[1, 0]> : vector<2xi1>
%vx = arith.constant dense<[10, 30]> : vector<2xi32>
%vy = arith.constant dense<[20, 40]> : vector<2xi32>
%vz = arith.select %vcond, %vx, %vy : vector<2xi32>
vector.print %vz : vector<2xi32>
return
}
}
```
**Error message**
```
mlir-opt arith_select.mlir
arith_select.mlir:6:24: error: use of value '%vcond' expects different type than prior uses: 'i1' vs 'vector<2xi1>'
%vz = arith.select %vcond, %vx, %vy : vector<2xi32>
^
/mnt/sdd1/sbw/mlir/data/seed/chatgptMlir/vector/arith_select.mlir:3:5: note: prior use here
%vcond = arith.constant dense<[1, 0]> : vector<2xi1>
^
```
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