[llvm] Fix orphaned subprocess.
@@ -86,6 +86,7 @@ class LlvmStressDataset(Dataset):
)
stdout, _ = llvm_as.communicate(timeout=60)
+ llvm_stress.communicate(timeout=60)
if llvm_stress.returncode or llvm_as.returncode:
raise BenchmarkInitError("Failed to generate benchmark")
