[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 11:49:00 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:

Could we have custom builders, a la xDSL? That is, could we define `__init__` method overrides on these classes and have them be available in a natural way for constructing the ops? I think that might mean needing to transplant these methods to the OpView class and replacing these classes by their OpView class.

Here's an xDSL example: https://github.com/xdslproject/xdsl/blob/56e89d375e4bdf2a4e8301996c2fc2639668b792/xdsl/dialects/tensor.py#L116-L124

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


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