isl_test_cpp17-generic.cc: work around std::optional::value issue in older macOS

[isl.git] / test_inputs / flow / multi_source-tree.ai

sink: "{ S[] -> a[] }"
must_source: "{ T[] -> a[]; U[] -> a[] }"
schedule:
  domain: "{ U[]; S[]; T[] }"
  child:
    sequence:
    - filter: "{ T[]; U[] }"
    - filter: "{ S[] }"