Helper to create test data for compiler_rt compare

cmp_helper.zig

const math = @import("std").math;
const print = @import("std").debug.print;

// a <  b => 0
// a == b => 1
// a >  b => 2

fn printTestCase(comptime T: type, a: T, b: T) !void {
    var cmp: i32 = undefined;
    if (a < b) {
        cmp = 0;
    } else if (a == b) {
        cmp = 1;
    } else {
        cmp = 2;
    }
    print("try test__ucmpti2({d}, {d}, {d});\n", .{ a, b, cmp });
}

pub fn main() !void {
    const ST = u128;
    const min_int = math.minInt(ST);
    const max_int = math.maxInt(ST);
    const min_int_half = @divTrunc(min_int, 2);
    const max_int_half = @divTrunc(max_int, 2);
    print("// minInt == {d}\n", .{min_int});
    print("// maxInt == {d}\n", .{max_int});
    print("// minInt/2 == {d}\n", .{min_int / 2});
    print("// maxInt/2 == {d}\n", .{max_int / 2});

    print("// 1. equality minInt, minInt/2, 0, maxInt/2, maxInt\n", .{});
    try printTestCase(ST, min_int, min_int);
    try printTestCase(ST, min_int + 1, min_int + 1);
    try printTestCase(ST, min_int_half, min_int_half);
    //try printTestCase(ST, -1, -1);
    try printTestCase(ST, 0, 0);
    try printTestCase(ST, 1, 1);
    try printTestCase(ST, max_int_half, max_int_half);
    try printTestCase(ST, max_int - 1, max_int - 1);
    try printTestCase(ST, max_int, max_int);

    print("// 2. cmp minInt,   {{        minInt + 1, minInt/2, -2,-1,0,1,2, maxInt/2, maxInt-1, maxInt}}\n", .{});
    //try printTestCase(ST, min_int, min_int);
    try printTestCase(ST, min_int, min_int + 1);
    try printTestCase(ST, min_int, min_int_half);
    //try printTestCase(ST, min_int, -1);
    try printTestCase(ST, min_int, 0);
    try printTestCase(ST, min_int, 1);
    try printTestCase(ST, min_int, max_int_half);
    try printTestCase(ST, min_int, max_int - 1);
    try printTestCase(ST, min_int, max_int);

    print("// 3. cmp minInt+1, {{minInt,             minInt/2, -2,-1,0,1,2, maxInt/2, maxInt-1, maxInt}}\n", .{});
    try printTestCase(ST, min_int + 1, min_int);
    //try printTestCase(ST, min_int+1, min_int+1);
    try printTestCase(ST, min_int + 1, min_int_half);
    //try printTestCase(ST, min_int + 1, -1);
    try printTestCase(ST, min_int + 1, 0);
    try printTestCase(ST, min_int + 1, 1);
    try printTestCase(ST, min_int + 1, max_int_half);
    try printTestCase(ST, min_int + 1, max_int - 1);
    try printTestCase(ST, min_int + 1, max_int);

    print("// 4. cmp minInt/2, {{minInt, minInt + 1,           -2,-1,0,1,2, maxInt/2, maxInt-1, maxInt}}\n", .{});
    try printTestCase(ST, min_int_half, min_int);
    try printTestCase(ST, min_int_half, min_int + 1);
    //try printTestCase(ST, min_int_half, min_int_half);
    //try printTestCase(ST, min_int_half, -1);
    try printTestCase(ST, min_int_half, 0);
    try printTestCase(ST, min_int_half, 1);
    try printTestCase(ST, min_int_half, max_int_half);
    try printTestCase(ST, min_int_half, max_int - 1);
    try printTestCase(ST, min_int_half, max_int);

    print("// 5. cmp -1,       {{minInt, minInt + 1, minInt/2, -2,   0,1,2, maxInt/2, maxInt-1, maxInt}}\n", .{});
    //try printTestCase(ST, -1, min_int);
    //try printTestCase(ST, -1, min_int + 1);
    //try printTestCase(ST, -1, min_int_half);
    ////try printTestCase(ST, -1, -1);
    //try printTestCase(ST, -1, 0);
    //try printTestCase(ST, -1, 1);
    //try printTestCase(ST, -1, max_int_half);
    //try printTestCase(ST, -1, max_int - 1);
    //try printTestCase(ST, -1, max_int);

    print("// 6. cmp 0,        {{minInt, minInt + 1, minInt/2, -2,-1,  1,2, maxInt/2, maxInt-1, maxInt}}\n", .{});
    try printTestCase(ST, 0, min_int);
    try printTestCase(ST, 0, min_int + 1);
    try printTestCase(ST, 0, min_int_half);
    //try printTestCase(ST, 0, -1);
    //try printTestCase(ST, 0, 0);
    try printTestCase(ST, 0, 1);
    try printTestCase(ST, 0, max_int_half);
    try printTestCase(ST, 0, max_int - 1);
    try printTestCase(ST, 0, max_int);

    print("// 7. cmp 1,        {{minInt, minInt + 1, minInt/2, -2,-1,0,  2, maxInt/2, maxInt-1, maxInt}}\n", .{});
    try printTestCase(ST, 1, min_int);
    try printTestCase(ST, 1, min_int + 1);
    try printTestCase(ST, 1, min_int_half);
    //try printTestCase(ST, 1, -1);
    try printTestCase(ST, 1, 0);
    //try printTestCase(ST, 1, 1);
    try printTestCase(ST, 1, max_int_half);
    try printTestCase(ST, 1, max_int - 1);
    try printTestCase(ST, 1, max_int);

    print("// 8. cmp maxInt/2, {{minInt, minInt + 1, minInt/2, -2,-1,0,1,2,           maxInt-1, maxInt}}\n", .{});
    try printTestCase(ST, max_int_half, min_int);
    try printTestCase(ST, max_int_half, min_int + 1);
    try printTestCase(ST, max_int_half, min_int_half);
    //try printTestCase(ST, max_int_half, -1);
    try printTestCase(ST, max_int_half, 0);
    try printTestCase(ST, max_int_half, 1);
    //try printTestCase(ST, max_int_half, max_int_half);
    try printTestCase(ST, max_int_half, max_int - 1);
    try printTestCase(ST, max_int_half, max_int);

    print("// 9. cmp maxInt-1, {{minInt, minInt + 1, minInt/2, -2,-1,0,1,2, maxInt/2,           maxInt}}\n", .{});
    try printTestCase(ST, max_int - 1, min_int);
    try printTestCase(ST, max_int - 1, min_int + 1);
    try printTestCase(ST, max_int - 1, min_int_half);
    //try printTestCase(ST, max_int - 1, -1);
    try printTestCase(ST, max_int - 1, 0);
    try printTestCase(ST, max_int - 1, 1);
    try printTestCase(ST, max_int - 1, max_int_half);
    //try printTestCase(ST, max_int-1, max_int-1);
    try printTestCase(ST, max_int - 1, max_int);

    print("// 10.cmp maxInt,   {{minInt, minInt + 1, minInt/2, -2,-1,0,1,2, maxInt/2, maxInt-1,       }}\n", .{});
    try printTestCase(ST, max_int, min_int);
    try printTestCase(ST, max_int, min_int + 1);
    try printTestCase(ST, max_int, min_int_half);
    //try printTestCase(ST, max_int, -1);
    try printTestCase(ST, max_int, 0);
    try printTestCase(ST, max_int, 1);
    try printTestCase(ST, max_int, max_int_half);
    try printTestCase(ST, max_int, max_int - 1);
    //try printTestCase(ST, max_int, max_int);
}