weirflow 0.1.0

GPU-first dataflow analysis primitives for Vyre and Santh compiler pipelines.
Documentation 
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use super::*;

#[test]
fn resident_csr_upload_rolls_back_allocated_buffers_on_failure() {
    let dispatch = FakeResidentDispatch::failing_on_upload_call(1, 3);
    let prepared = PreparedIfdsCsr {
        shape: IfdsShape {
            num_procs: 1,
            blocks_per_proc: 1,
            facts_per_proc: 1,
            edge_count: 0,
        },
        node_count: 1,
        words: 1,
        pg_nodes_b: vec![0; 4],
        row_ptr_b: vec![0; 8],
        col_idx_b: Vec::new(),
        pg_edge_kind_mask_b: Vec::new(),
        pg_node_tags_b: vec![0; 4],
    };
    let err = upload_prepared_ifds_csr_resident(&dispatch, &prepared)
        .expect_err("injected upload failure must fail prepare");
    assert!(
        err.contains("batch CSR upload failed") && err.contains("injected upload failure"),
        "unexpected diagnostic: {err}"
    );
    assert_eq!(
        *dispatch.freed.borrow(),
        vec![5, 6, 7, 8, 9],
        "resident CSR batch upload failure must free every allocated ProgramGraph buffer"
    );
}

#[test]
fn resident_csr_upload_pads_zero_length_edge_buffers() {
    let dispatch = FakeResidentDispatch::new_with_program_graph_buffers(1);
    let prepared = PreparedIfdsCsr {
        shape: IfdsShape {
            num_procs: 1,
            blocks_per_proc: 1,
            facts_per_proc: 1,
            edge_count: 0,
        },
        node_count: 1,
        words: 1,
        pg_nodes_b: vec![0; 4],
        row_ptr_b: vec![0; 8],
        col_idx_b: Vec::new(),
        pg_edge_kind_mask_b: Vec::new(),
        pg_node_tags_b: vec![0; 4],
    };
    let resident = upload_prepared_ifds_csr_resident(&dispatch, &prepared)
        .expect("zero-edge resident CSR upload should allocate padded edge buffers");
    assert_eq!(
        dispatch.upload_many_calls.get(),
        1,
        "resident CSR upload should batch all invariant ProgramGraph uploads"
    );
    assert_eq!(dispatch.buffers.borrow()[resident.col_idx].len(), 4);
    assert_eq!(
        dispatch.buffers.borrow()[resident.pg_edge_kind_mask].len(),
        4
    );
}