Revert to %PYTHON in RUN lines

Author: rolfmorel

examples/ingress/convert-kernel-bench-to-mlir.py

@@ -1,4 +1,4 @@
-# RUN: python %s 1,1 1,2 2,1
+# RUN: %PYTHON %s 1,1 1,2 2,1
 # REQUIRES: torch
 # REQUIRES: kernel_bench
 

examples/ingress/torch/mlp_from_file.py

@@ -1,4 +1,4 @@
-# RUN: python %s
+# RUN: %PYTHON %s
 
 """
 Example demonstrating how to load a PyTorch model to MLIR using Lighthouse

examples/ingress/torch/mlp_from_model.py

@@ -1,4 +1,4 @@
-# RUN: python %s
+# RUN: %PYTHON %s
 
 """
 Example demonstrating how to load an already initialized PyTorch model

examples/llama/test_llama3.py

@@ -1,4 +1,4 @@
-# RUN: python %s
+# RUN: %PYTHON %s
 # REQUIRES: torch
 
 import functools

examples/mlir/compile_and_run.py

@@ -1,4 +1,4 @@
-# RUN: python %s
+# RUN: %PYTHON %s
 # REQUIRES: torch
 
 import torch

examples/schedule/transform_a_payload_according_to_a_schedule.py

@@ -1,4 +1,4 @@
-# RUN: python %s | FileCheck %s
+# RUN: %PYTHON %s | FileCheck %s
 
 # Simply demonstrates applying a schedule to a payload.
 # To do so generates a basic payload and a basic schedule, purely as an example.

examples/workload/example.py

@@ -1,4 +1,4 @@
-# RUN: python %s | FileCheck %s
+# RUN: %PYTHON %s | FileCheck %s
 # CHECK: func.func @payload
 # CHECK: PASSED
 # CHECK: Throughput:

examples/workload/example_mlir.py

@@ -1,4 +1,4 @@
-# RUN: python %s | FileCheck %s
+# RUN: %PYTHON %s | FileCheck %s
 # CHECK: func.func @payload
 # CHECK: PASSED
 # CHECK: Throughput:

examples/xegpu_matmul/matmul.py

@@ -1,4 +1,4 @@
-# RUN: python %s --dump-kernel=xegpu-wg | FileCheck %s
+# RUN: %PYTHON %s --dump-kernel=xegpu-wg | FileCheck %s
 # CHECK: module attributes {gpu.container_module} {
 
 """

lit.cfg.py

@@ -15,8 +15,8 @@
 config.test_exec_root = project_root + "/lit.out"
 
 config.substitutions.append(("%CACHE", project_root + "/cache"))
-if python_path := os.environ.get("PYTHON"):
-    config.substitutions.append(("python", python_path))
+python = os.environ.get("PYTHON", "python")
+config.substitutions.append(("%PYTHON", python))
 if filecheck_path := os.environ.get("FILECHECK"):
     config.substitutions.append(("FileCheck", filecheck_path))