[Mlir-commits] [mlir] [MLIR][Python] Add a DSL for defining IRDL dialects in Python bindings (PR #169045)

Rolf Morel llvmlistbot at llvm.org
Fri Dec 5 11:48:59 PST 2025


================
@@ -0,0 +1,308 @@
+# RUN: %PYTHON %s 2>&1 | FileCheck %s
+
+from mlir.ir import *
+from mlir.dialects.irdl import dsl as irdsl
+from mlir.dialects import arith
+import sys
+
+
+def run(f):
+    print("\nTEST:", f.__name__, file=sys.stderr)
+    with Context():
+        f()
+
+
+# CHECK: TEST: testMyInt
+ at run
+def testMyInt():
+    myint = irdsl.Dialect("myint")
+    iattr = irdsl.BaseName("#builtin.integer")
+    i32 = irdsl.IsType(IntegerType.get_signless(32))
+
+    @myint.op("constant")
+    class ConstantOp:
----------------
rolfmorel wrote:

I think auxiliary methods on these op definitions will not be available on the OpView classes that get registered, right?

How can we support something like the following (ignore that it's a silly example):
```python
class ConstantOp:
        ...

        def doubled(self) -> int:
             the_attr = self.value
             return the_attr.value * 2
``` 

https://github.com/llvm/llvm-project/pull/169045


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