[Mlir-commits] [mlir] [mlir] Make MemoryEffectsOpInterface optional. (PR #187427)

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``````````diff
--- memory_effects_interface.py	2026-03-19 19:54:15.000000 +0000
+++ memory_effects_interface.py	2026-03-19 19:56:13.257991 +0000
@@ -43,13 +43,11 @@
 def test_known_no_effects():
     """When 'effects' attribute is present, hasKnownMemoryEffects returns true
     and the interface is active."""
     with ir.Context() as ctx, ir.Location.unknown():
         TestMemEffectsDialect.load(reload=True)
-        OptionalMemoryEffectsModel.attach(
-            OptionalEffectsOp.OPERATION_NAME, context=ctx
-        )
+        OptionalMemoryEffectsModel.attach(OptionalEffectsOp.OPERATION_NAME, context=ctx)
 
         module = ir.Module.create()
         with ir.InsertionPoint(module.body):
             op = ir.Operation.create("test_mem_effects.optional_effects")
             op.attributes["effects"] = ir.UnitAttr.get()
@@ -63,13 +61,11 @@
 def test_unknown_effects():
     """When 'effects' attribute is absent, hasKnownMemoryEffects returns false
     and the interface is not active (the op pretends not to implement it)."""
     with ir.Context() as ctx, ir.Location.unknown():
         TestMemEffectsDialect.load(reload=True)
-        OptionalMemoryEffectsModel.attach(
-            OptionalEffectsOp.OPERATION_NAME, context=ctx
-        )
+        OptionalMemoryEffectsModel.attach(OptionalEffectsOp.OPERATION_NAME, context=ctx)
 
         module = ir.Module.create()
         with ir.InsertionPoint(module.body):
             op = ir.Operation.create("test_mem_effects.optional_effects")
 

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https://github.com/llvm/llvm-project/pull/187427