Add e2e fusions to fullgraph test (should work with Triton backend), disable without flashinfer

Signed-off-by: Luka Govedič <lgovedic@redhat.com>

Author: ProExpertProg

.buildkite/test-pipeline.yaml

@@ -416,15 +416,16 @@ steps:
   - pytest -v -s compile/test_basic_correctness.py
   - pytest -v -s compile/piecewise/
 
-- label: PyTorch Fullgraph Test # 20min
-  timeout_in_minutes: 30
+- label: PyTorch Fullgraph Test # 22min
+  timeout_in_minutes: 35
   mirror_hardwares: [amdexperimental]
   torch_nightly: true
   source_file_dependencies:
   - vllm/
   - tests/compile
   commands:
   - pytest -v -s compile/test_full_graph.py
+  - pytest -v -s compile/test_fusions_e2e.py
 
 - label: Kernels Core Operation Test # 48min
   timeout_in_minutes: 75

tests/compile/test_fusions_e2e.py

@@ -33,7 +33,7 @@
         )
     ]
 
-    if current_platform.is_device_capability((10, 0)):
+    if current_platform.is_device_capability((10, 0)) and has_flashinfer():
         MODELS_FP8 += [
             (
                 "nvidia/Llama-4-Scout-17B-16E-Instruct-FP8",
@@ -97,7 +97,6 @@ def test_attn_quant(
 
     # Disable, compile cache to make sure custom passes run.
     # Otherwise, we can't verify fusion happened through the logs.
-    # Log capture also doesn't work with multiprocessing yet.
     monkeypatch.setenv("VLLM_DISABLE_COMPILE_CACHE", "1")
 
     # To capture subprocess logs, we need to know whether spawn or fork is used.
@@ -170,7 +169,6 @@ def test_tp2_attn_quant_allreduce_rmsnorm(
 
     # Disable, compile cache to make sure custom passes run.
     # Otherwise, we can't verify fusion happened through the logs.
-    # Log capture also doesn't work with multiprocessing yet.
     monkeypatch.setenv("VLLM_DISABLE_COMPILE_CACHE", "1")
 
     # To capture subprocess logs, we need to know whether spawn or fork is used.