[WIP][tests] add tests to check for graph breaks, recompilation, cuda syncs in pipelines during torch.compile()

tests/pipelines/test_pipelines_common.py

@@ -56,6 +56,7 @@
     require_torch_gpu,
     require_transformers_version_greater,
     skip_mps,
+    slow,
     torch_device,
 )
 
@@ -1117,6 +1118,7 @@ def setUp(self):
     def tearDown(self):
         # clean up the VRAM after each test in case of CUDA runtime errors
         super().tearDown()
+        torch._dynamo.reset()
         gc.collect()
         backend_empty_cache(torch_device)
 
@@ -2162,6 +2164,21 @@ def test_StableDiffusionMixin_component(self):
             )
         )
 
+    @require_torch_gpu
+    @slow
+    def test_torch_compile_recompilation_and_graph_break(self):
+        inputs = self.get_dummy_inputs(torch_device)
+        components = self.get_dummy_components()
+
+        pipe = self.pipeline_class(**components).to(torch_device)
+        if getattr(pipe, "unet", None) is not None:
+            pipe.unet = torch.compile(pipe.unet, fullgraph=True)
+        else:
+            pipe.transformer = torch.compile(pipe.transformer, fullgraph=True)
+
+        with torch._dynamo.config.patch(error_on_recompile=True):
+            _ = pipe(**inputs)
+
     @require_hf_hub_version_greater("0.26.5")
     @require_transformers_version_greater("4.47.1")
     def test_save_load_dduf(self, atol=1e-4, rtol=1e-4):