[tests] reset logs in torch.compile test (#37894)

tests/generation/test_utils.py

@@ -2175,6 +2175,8 @@ class GenerationTesterMixin:
 
             compiled_outputs = []
             # Uses a context manager to catch recompilation logs. If there is any recompilation, this test fails.
+            # Try/Finally is used to ensure that the log options are reset even if an error is raised.
+            try:
                 torch._logging.set_logs(recompiles_verbose=True)
                 logger = logging.get_logger("torch._dynamo.guards")
                 with CaptureLogger(logger) as cl:
@@ -2192,6 +2194,8 @@ class GenerationTesterMixin:
                         self.assertTrue(decoder_cache.is_compileable)
                         # our auto compile should have been called
                         self.assertTrue(hasattr(model_to_be_compiled, "_compiled_call"))
+            finally:
+                torch._logging.set_logs()
 
             if "Recompiling" in cl.out or ("guard" in cl.out and "failure" in cl.out):
                 raise RuntimeError(