zig/lib/compiler_rt/udivmodsi4_test.zig
mlugg cf39652500
compiler_rt: remove bogus tests
These only worked before because our lowering of the `AAPCS` calling
convention was incorrect in a way which happened to match the ABI of
these functions. The tests aren't actually very helpful -- there are
already tests for `divmoddi4` etc -- so rather than using inline asm on
the caller side to match the ABI, we just delete these two tests.

We were for some reason missing a direct test for `__udivmodsi4`, so one
has been added.
2024-10-19 19:44:53 +01:00

156 lines
8.4 KiB
Zig

// Disable formatting to avoid unnecessary source repository bloat.
// zig fmt: off
const testing = @import("std").testing;
const builtin = @import("builtin");
const __udivmodsi4 = @import("int.zig").__udivmodsi4;
fn test__udivmodsi4(a: u32, b: u32, expected_q: u32, expected_r: u32) !void {
var r: u32 = undefined;
const q = __udivmodsi4(a, b, &r);
try testing.expectEqual(expected_q, q);
try testing.expectEqual(expected_r, r);
}
test "udivmodsi4" {
for (cases) |case| {
try test__udivmodsi4(case[0], case[1], case[2], case[3]);
}
}
const cases = [_][4]u32{
[_]u32{0x00000000, 0x00000001, 0x00000000, 0x00000000},
[_]u32{0x00000000, 0x00000002, 0x00000000, 0x00000000},
[_]u32{0x00000000, 0x00000003, 0x00000000, 0x00000000},
[_]u32{0x00000000, 0x00000010, 0x00000000, 0x00000000},
[_]u32{0x00000000, 0x078644FA, 0x00000000, 0x00000000},
[_]u32{0x00000000, 0x0747AE14, 0x00000000, 0x00000000},
[_]u32{0x00000000, 0x7FFFFFFF, 0x00000000, 0x00000000},
[_]u32{0x00000000, 0x80000000, 0x00000000, 0x00000000},
[_]u32{0x00000000, 0xFFFFFFFD, 0x00000000, 0x00000000},
[_]u32{0x00000000, 0xFFFFFFFE, 0x00000000, 0x00000000},
[_]u32{0x00000000, 0xFFFFFFFF, 0x00000000, 0x00000000},
[_]u32{0x00000001, 0x00000001, 0x00000001, 0x00000000}, // 1/1 => q=1, r=0
[_]u32{0x00000001, 0x00000002, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x00000003, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x00000010, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x078644FA, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x0747AE14, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x7FFFFFFF, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x80000000, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0xFFFFFFFD, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0xFFFFFFFE, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0xFFFFFFFF, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x00000000, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x00000001, 0x00000001, 0x00000000},
[_]u32{0x00000001, 0x00000002, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x00000003, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x00000010, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x078644FA, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x0747AE14, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x7FFFFFFF, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0x80000000, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0xFFFFFFFD, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0xFFFFFFFE, 0x00000000, 0x00000001},
[_]u32{0x00000001, 0xFFFFFFFF, 0x00000000, 0x00000001},
[_]u32{0x00000002, 0x00000001, 0x00000002, 0x00000000},
[_]u32{0x00000002, 0x00000002, 0x00000001, 0x00000000},
[_]u32{0x00000002, 0x00000003, 0x00000000, 0x00000002},
[_]u32{0x00000002, 0x00000010, 0x00000000, 0x00000002},
[_]u32{0x00000002, 0x078644FA, 0x00000000, 0x00000002},
[_]u32{0x00000002, 0x0747AE14, 0x00000000, 0x00000002},
[_]u32{0x00000002, 0x7FFFFFFF, 0x00000000, 0x00000002},
[_]u32{0x00000002, 0x80000000, 0x00000000, 0x00000002},
[_]u32{0x00000002, 0xFFFFFFFD, 0x00000000, 0x00000002},
[_]u32{0x00000002, 0xFFFFFFFE, 0x00000000, 0x00000002},
[_]u32{0x00000002, 0xFFFFFFFF, 0x00000000, 0x00000002},
[_]u32{0x00000010, 0x00000001, 0x00000010, 0x00000000},
[_]u32{0x00000010, 0x00000002, 0x00000008, 0x00000000},
[_]u32{0x00000010, 0x00000003, 0x00000005, 0x00000001},
[_]u32{0x00000010, 0x00000010, 0x00000001, 0x00000000},
[_]u32{0x00000010, 0x078644FA, 0x00000000, 0x00000010},
[_]u32{0x00000010, 0x0747AE14, 0x00000000, 0x00000010},
[_]u32{0x00000010, 0x7FFFFFFF, 0x00000000, 0x00000010},
[_]u32{0x00000010, 0x80000000, 0x00000000, 0x00000010},
[_]u32{0x00000010, 0xFFFFFFFD, 0x00000000, 0x00000010},
[_]u32{0x00000010, 0xFFFFFFFE, 0x00000000, 0x00000010},
[_]u32{0x00000010, 0xFFFFFFFF, 0x00000000, 0x00000010},
[_]u32{0x078644FA, 0x00000001, 0x078644FA, 0x00000000},
[_]u32{0x078644FA, 0x00000002, 0x03C3227D, 0x00000000},
[_]u32{0x078644FA, 0x00000003, 0x028216FE, 0x00000000},
[_]u32{0x078644FA, 0x00000010, 0x0078644F, 0x0000000A},
[_]u32{0x078644FA, 0x078644FA, 0x00000001, 0x00000000},
[_]u32{0x078644FA, 0x0747AE14, 0x00000001, 0x003E96E6},
[_]u32{0x078644FA, 0x7FFFFFFF, 0x00000000, 0x078644FA},
[_]u32{0x078644FA, 0x80000000, 0x00000000, 0x078644FA},
[_]u32{0x078644FA, 0xFFFFFFFD, 0x00000000, 0x078644FA},
[_]u32{0x078644FA, 0xFFFFFFFE, 0x00000000, 0x078644FA},
[_]u32{0x078644FA, 0xFFFFFFFF, 0x00000000, 0x078644FA},
[_]u32{0x0747AE14, 0x00000001, 0x0747AE14, 0x00000000},
[_]u32{0x0747AE14, 0x00000002, 0x03A3D70A, 0x00000000},
[_]u32{0x0747AE14, 0x00000003, 0x026D3A06, 0x00000002},
[_]u32{0x0747AE14, 0x00000010, 0x00747AE1, 0x00000004},
[_]u32{0x0747AE14, 0x078644FA, 0x00000000, 0x0747AE14},
[_]u32{0x0747AE14, 0x0747AE14, 0x00000001, 0x00000000},
[_]u32{0x0747AE14, 0x7FFFFFFF, 0x00000000, 0x0747AE14},
[_]u32{0x0747AE14, 0x80000000, 0x00000000, 0x0747AE14},
[_]u32{0x0747AE14, 0xFFFFFFFD, 0x00000000, 0x0747AE14},
[_]u32{0x0747AE14, 0xFFFFFFFE, 0x00000000, 0x0747AE14},
[_]u32{0x0747AE14, 0xFFFFFFFF, 0x00000000, 0x0747AE14},
[_]u32{0x7FFFFFFF, 0x00000001, 0x7FFFFFFF, 0x00000000},
[_]u32{0x7FFFFFFF, 0x00000002, 0x3FFFFFFF, 0x00000001},
[_]u32{0x7FFFFFFF, 0x00000003, 0x2AAAAAAA, 0x00000001},
[_]u32{0x7FFFFFFF, 0x00000010, 0x07FFFFFF, 0x0000000F},
[_]u32{0x7FFFFFFF, 0x078644FA, 0x00000011, 0x00156B65},
[_]u32{0x7FFFFFFF, 0x0747AE14, 0x00000011, 0x043D70AB},
[_]u32{0x7FFFFFFF, 0x7FFFFFFF, 0x00000001, 0x00000000},
[_]u32{0x7FFFFFFF, 0x80000000, 0x00000000, 0x7FFFFFFF},
[_]u32{0x7FFFFFFF, 0xFFFFFFFD, 0x00000000, 0x7FFFFFFF},
[_]u32{0x7FFFFFFF, 0xFFFFFFFE, 0x00000000, 0x7FFFFFFF},
[_]u32{0x7FFFFFFF, 0xFFFFFFFF, 0x00000000, 0x7FFFFFFF},
[_]u32{0x80000000, 0x00000001, 0x80000000, 0x00000000},
[_]u32{0x80000000, 0x00000002, 0x40000000, 0x00000000},
[_]u32{0x80000000, 0x00000003, 0x2AAAAAAA, 0x00000002},
[_]u32{0x80000000, 0x00000010, 0x08000000, 0x00000000},
[_]u32{0x80000000, 0x078644FA, 0x00000011, 0x00156B66},
[_]u32{0x80000000, 0x0747AE14, 0x00000011, 0x043D70AC},
[_]u32{0x80000000, 0x7FFFFFFF, 0x00000001, 0x00000001},
[_]u32{0x80000000, 0x80000000, 0x00000001, 0x00000000},
[_]u32{0x80000000, 0xFFFFFFFD, 0x00000000, 0x80000000},
[_]u32{0x80000000, 0xFFFFFFFE, 0x00000000, 0x80000000},
[_]u32{0x80000000, 0xFFFFFFFF, 0x00000000, 0x80000000},
[_]u32{0xFFFFFFFD, 0x00000001, 0xFFFFFFFD, 0x00000000},
[_]u32{0xFFFFFFFD, 0x00000002, 0x7FFFFFFE, 0x00000001},
[_]u32{0xFFFFFFFD, 0x00000003, 0x55555554, 0x00000001},
[_]u32{0xFFFFFFFD, 0x00000010, 0x0FFFFFFF, 0x0000000D},
[_]u32{0xFFFFFFFD, 0x078644FA, 0x00000022, 0x002AD6C9},
[_]u32{0xFFFFFFFD, 0x0747AE14, 0x00000023, 0x01333341},
[_]u32{0xFFFFFFFD, 0x7FFFFFFF, 0x00000001, 0x7FFFFFFE},
[_]u32{0xFFFFFFFD, 0x80000000, 0x00000001, 0x7FFFFFFD},
[_]u32{0xFFFFFFFD, 0xFFFFFFFD, 0x00000001, 0x00000000},
[_]u32{0xFFFFFFFD, 0xFFFFFFFE, 0x00000000, 0xFFFFFFFD},
[_]u32{0xFFFFFFFD, 0xFFFFFFFF, 0x00000000, 0xFFFFFFFD},
[_]u32{0xFFFFFFFE, 0x00000001, 0xFFFFFFFE, 0x00000000},
[_]u32{0xFFFFFFFE, 0x00000002, 0x7FFFFFFF, 0x00000000},
[_]u32{0xFFFFFFFE, 0x00000003, 0x55555554, 0x00000002},
[_]u32{0xFFFFFFFE, 0x00000010, 0x0FFFFFFF, 0x0000000E},
[_]u32{0xFFFFFFFE, 0x078644FA, 0x00000022, 0x002AD6CA},
[_]u32{0xFFFFFFFE, 0x0747AE14, 0x00000023, 0x01333342},
[_]u32{0xFFFFFFFE, 0x7FFFFFFF, 0x00000002, 0x00000000},
[_]u32{0xFFFFFFFE, 0x80000000, 0x00000001, 0x7FFFFFFE},
[_]u32{0xFFFFFFFE, 0xFFFFFFFD, 0x00000001, 0x00000001},
[_]u32{0xFFFFFFFE, 0xFFFFFFFE, 0x00000001, 0x00000000},
[_]u32{0xFFFFFFFE, 0xFFFFFFFF, 0x00000000, 0xFFFFFFFE},
[_]u32{0xFFFFFFFF, 0x00000001, 0xFFFFFFFF, 0x00000000},
[_]u32{0xFFFFFFFF, 0x00000002, 0x7FFFFFFF, 0x00000001},
[_]u32{0xFFFFFFFF, 0x00000003, 0x55555555, 0x00000000},
[_]u32{0xFFFFFFFF, 0x00000010, 0x0FFFFFFF, 0x0000000F},
[_]u32{0xFFFFFFFF, 0x078644FA, 0x00000022, 0x002AD6CB},
[_]u32{0xFFFFFFFF, 0x0747AE14, 0x00000023, 0x01333343},
[_]u32{0xFFFFFFFF, 0x7FFFFFFF, 0x00000002, 0x00000001},
[_]u32{0xFFFFFFFF, 0x80000000, 0x00000001, 0x7FFFFFFF},
[_]u32{0xFFFFFFFF, 0xFFFFFFFD, 0x00000001, 0x00000002},
[_]u32{0xFFFFFFFF, 0xFFFFFFFE, 0x00000001, 0x00000001},
[_]u32{0xFFFFFFFF, 0xFFFFFFFF, 0x00000001, 0x00000000},
};