[Mlir-commits] [mlir] [MLIR][Python] Do not install ExecutionEngine wrapper when disabled (PR #211250)

llvmlistbot at llvm.org llvmlistbot at llvm.org
Wed Jul 22 05:42:29 PDT 2026


llvmorg-github-actions[bot] wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-mlir

Author: Anutosh Bhat (anutosh491)

<details>
<summary>Changes</summary>

The `_mlirExecutionEngine` extension is declared only when `MLIR_ENABLE_EXECUTION_ENGINE` is enabled. However, `execution_engine.py` and its type stub are currently added to the Python package unconditionally.

This leaves an installed `mlir.execution_engine` module that fails immediately when imported because its native extension is absent. It also exposes a type stub for an unavailable API.

Making sure they're added only if `MLIR_ENABLE_EXECUTION_ENGINE` is enabled.

---
Full diff: https://github.com/llvm/llvm-project/pull/211250.diff


1 Files Affected:

- (modified) mlir/python/CMakeLists.txt (+10-2) 


``````````diff
diff --git a/mlir/python/CMakeLists.txt b/mlir/python/CMakeLists.txt
index 802f8c126512e..693701ef50c13 100644
--- a/mlir/python/CMakeLists.txt
+++ b/mlir/python/CMakeLists.txt
@@ -41,15 +41,23 @@ declare_mlir_python_sources(MLIRPythonSources.Core.Python.Extras
     extras/meta.py
 )
 
+set(_execution_engine_python_sources)
+if(MLIR_ENABLE_EXECUTION_ENGINE)
+  list(APPEND _execution_engine_python_sources
+    execution_engine.py
+    _mlir_libs/_mlirExecutionEngine.pyi
+  )
+endif()
+
 declare_mlir_python_sources(MLIRPythonSources.ExecutionEngine
   ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/mlir"
   ADD_TO_PARENT MLIRPythonSources
   SOURCES
-    execution_engine.py
-    _mlir_libs/_mlirExecutionEngine.pyi
+    ${_execution_engine_python_sources}
   SOURCES_GLOB
     runtime/*.py
 )
+unset(_execution_engine_python_sources)
 
 declare_mlir_python_sources(MLIRPythonCAPI.HeaderSources
   ROOT_DIR "${MLIR_SOURCE_DIR}/include"

``````````

</details>


https://github.com/llvm/llvm-project/pull/211250


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