Fix logical error and improve readability

Co-authored-by: Copilot <[email protected]>

Author: 2 people

mmengine/_strategy/base.py

@@ -322,8 +322,8 @@ def compile_model(
         Returns:
             nn.Module: Compiled model.
         """
-        if isinstance(compile, bool) and not compile or \
-           isinstance(compile, dict) and not compile.get('disable', False):
+        if (isinstance(compile, bool) and not compile) or \
+           (isinstance(compile, dict) and compile.get('disable', False)):
             return model
 
         assert digit_version(TORCH_VERSION) >= digit_version('2.0.0'), (