Function regalloc_pointers_structs_and_arrays

tests/integration/regalloc.rs:200–236

()

#[test]
fn regalloc_pointers_structs_and_arrays() {
    assert_equivalent(
        r#"
external free: (p: i64*) -> void

struct Point {
    x: i64,
    y: i64,
}

sum_buffer: (buf: i64*, len: i64) -> i64 {
    total: i64 = 0
    i: i64 = 0
    while i < len {
        total = total + buf[i]
        i = i + 1
    }
    return total
}

main: () -> i32 {
    p: Point = { .x = 17 as i64, .y = 25 as i64 }
    arr: i64[4] = [1 as i64, 2 as i64, 3 as i64, 4 as i64]
    local: i64 = arr[0] + arr[1] + arr[2] + arr[3]
    buf: i64* = new(i64, 4)
    i: i64 = 0
    while i < 4 {
        buf[i] = i * 10
        i = i + 1
    }
    s: i64 = sum_buffer(buf, 4)
    free(buf)
    return (p.x + p.y + local + s) as i32
}
"#,
    );
}

#[test]
fn regalloc_mixed_float_and_int() {
    // Floats stay slot-based while their integer neighbors are allocated; the