config.test_source_root = os.path.dirname(__file__)
# Setup default compiler flags used with -fsanitize=dataflow option.
-clang_dfsan_cflags = ["-fsanitize=dataflow"]
+clang_dfsan_cflags = ["-fsanitize=dataflow", "-m64"]
clang_dfsan_cxxflags = config.cxx_mode_flags + clang_dfsan_cflags
def build_invocation(compile_flags):