mirror of
https://github.com/ziglang/zig.git
synced 2024-11-27 15:42:49 +00:00
af536ac343
* remove setFnTest builtin
* add test "name" { ... } syntax
* remove --check-unused argument. functions are always lazy now.
516 lines
18 KiB
Zig
516 lines
18 KiB
Zig
// Avoid dragging in the debug safety mechanisms into this .o file,
|
|
// unless we're trying to test this file.
|
|
pub fn panic(message: []const u8) -> unreachable {
|
|
if (@compileVar("is_test")) {
|
|
@import("std").debug.panic(message);
|
|
} else {
|
|
@unreachable();
|
|
}
|
|
}
|
|
|
|
const CHAR_BIT = 8;
|
|
const du_int = u64;
|
|
const di_int = i64;
|
|
const si_int = c_int;
|
|
const su_int = c_uint;
|
|
|
|
const udwords = [2]su_int;
|
|
const low = if (@compileVar("is_big_endian")) 1 else 0;
|
|
const high = 1 - low;
|
|
|
|
export fn __udivdi3(a: du_int, b: du_int) -> du_int {
|
|
@setDebugSafety(this, false);
|
|
return __udivmoddi4(a, b, null);
|
|
}
|
|
|
|
fn du_int_to_udwords(x: du_int) -> udwords {
|
|
@setDebugSafety(this, false);
|
|
return *(&udwords)(&x);
|
|
}
|
|
|
|
export fn __udivmoddi4(a: du_int, b: du_int, maybe_rem: ?&du_int) -> du_int {
|
|
@setDebugSafety(this, false);
|
|
|
|
const n_uword_bits = @sizeOf(su_int) * CHAR_BIT;
|
|
const n_udword_bits = @sizeOf(du_int) * CHAR_BIT;
|
|
var n = du_int_to_udwords(a);
|
|
var d = du_int_to_udwords(b);
|
|
var q: udwords = undefined;
|
|
var r: udwords = undefined;
|
|
var sr: c_uint = undefined;
|
|
// special cases, X is unknown, K != 0
|
|
if (n[high] == 0) {
|
|
if (d[high] == 0) {
|
|
// 0 X
|
|
// ---
|
|
// 0 X
|
|
if (const rem ?= maybe_rem) {
|
|
*rem = n[low] % d[low];
|
|
}
|
|
return n[low] / d[low];
|
|
}
|
|
// 0 X
|
|
// ---
|
|
// K X
|
|
if (const rem ?= maybe_rem) {
|
|
*rem = n[low];
|
|
}
|
|
return 0;
|
|
}
|
|
// n[high] != 0
|
|
if (d[low] == 0) {
|
|
if (d[high] == 0) {
|
|
// K X
|
|
// ---
|
|
// 0 0
|
|
if (var rem ?= maybe_rem) {
|
|
*rem = n[high] % d[low];
|
|
}
|
|
return n[high] / d[low];
|
|
}
|
|
// d[high] != 0
|
|
if (n[low] == 0) {
|
|
// K 0
|
|
// ---
|
|
// K 0
|
|
if (var rem ?= maybe_rem) {
|
|
r[high] = n[high] % d[high];
|
|
r[low] = 0;
|
|
*rem = *(&du_int)(&r[0]);
|
|
}
|
|
return n[high] / d[high];
|
|
}
|
|
// K K
|
|
// ---
|
|
// K 0
|
|
// if d is a power of 2
|
|
if ((d[high] & (d[high] - 1)) == 0) {
|
|
if (var rem ?= maybe_rem) {
|
|
r[low] = n[low];
|
|
r[high] = n[high] & (d[high] - 1);
|
|
*rem = *(&du_int)(&r[0]);
|
|
}
|
|
return n[high] >> @ctz(d[high]);
|
|
}
|
|
// K K
|
|
// ---
|
|
// K 0
|
|
sr = @clz(su_int(d[high])) - @clz(su_int(n[high]));
|
|
// 0 <= sr <= n_uword_bits - 2 or sr large
|
|
if (sr > n_uword_bits - 2) {
|
|
if (var rem ?= maybe_rem) {
|
|
*rem = *(&du_int)(&n[0]);
|
|
}
|
|
return 0;
|
|
}
|
|
sr += 1;
|
|
// 1 <= sr <= n_uword_bits - 1
|
|
// q.all = n.all << (n_udword_bits - sr);
|
|
q[low] = 0;
|
|
q[high] = n[low] << (n_uword_bits - sr);
|
|
// r.all = n.all >> sr;
|
|
r[high] = n[high] >> sr;
|
|
r[low] = (n[high] << (n_uword_bits - sr)) | (n[low] >> sr);
|
|
} else {
|
|
// d[low] != 0
|
|
if (d[high] == 0) {
|
|
// K X
|
|
// ---
|
|
// 0 K
|
|
// if d is a power of 2
|
|
if ((d[low] & (d[low] - 1)) == 0) {
|
|
if (var rem ?= maybe_rem) {
|
|
*rem = n[low] & (d[low] - 1);
|
|
}
|
|
if (d[low] == 1) {
|
|
return *(&du_int)(&n[0]);
|
|
}
|
|
sr = @ctz(d[low]);
|
|
q[high] = n[high] >> sr;
|
|
q[low] = (n[high] << (n_uword_bits - sr)) | (n[low] >> sr);
|
|
return *(&du_int)(&q[0]);
|
|
}
|
|
// K X
|
|
// ---
|
|
// 0 K
|
|
sr = 1 + n_uword_bits + @clz(su_int(d[low])) - @clz(su_int(n[high]));
|
|
// 2 <= sr <= n_udword_bits - 1
|
|
// q.all = n.all << (n_udword_bits - sr);
|
|
// r.all = n.all >> sr;
|
|
if (sr == n_uword_bits) {
|
|
q[low] = 0;
|
|
q[high] = n[low];
|
|
r[high] = 0;
|
|
r[low] = n[high];
|
|
} else if (sr < n_uword_bits) {
|
|
// 2 <= sr <= n_uword_bits - 1
|
|
q[low] = 0;
|
|
q[high] = n[low] << (n_uword_bits - sr);
|
|
r[high] = n[high] >> sr;
|
|
r[low] = (n[high] << (n_uword_bits - sr)) | (n[low] >> sr);
|
|
} else {
|
|
// n_uword_bits + 1 <= sr <= n_udword_bits - 1
|
|
q[low] = n[low] << (n_udword_bits - sr);
|
|
q[high] = (n[high] << (n_udword_bits - sr)) |
|
|
(n[low] >> (sr - n_uword_bits));
|
|
r[high] = 0;
|
|
r[low] = n[high] >> (sr - n_uword_bits);
|
|
}
|
|
} else {
|
|
// K X
|
|
// ---
|
|
// K K
|
|
sr = @clz(su_int(d[high])) - @clz(su_int(n[high]));
|
|
// 0 <= sr <= n_uword_bits - 1 or sr large
|
|
if (sr > n_uword_bits - 1) {
|
|
if (var rem ?= maybe_rem) {
|
|
*rem = *(&du_int)(&n[0]);
|
|
}
|
|
return 0;
|
|
}
|
|
sr += 1;
|
|
// 1 <= sr <= n_uword_bits
|
|
// q.all = n.all << (n_udword_bits - sr);
|
|
q[low] = 0;
|
|
if (sr == n_uword_bits) {
|
|
q[high] = n[low];
|
|
r[high] = 0;
|
|
r[low] = n[high];
|
|
} else {
|
|
q[high] = n[low] << (n_uword_bits - sr);
|
|
r[high] = n[high] >> sr;
|
|
r[low] = (n[high] << (n_uword_bits - sr)) | (n[low] >> sr);
|
|
}
|
|
}
|
|
}
|
|
// Not a special case
|
|
// q and r are initialized with:
|
|
// q.all = n.all << (n_udword_bits - sr);
|
|
// r.all = n.all >> sr;
|
|
// 1 <= sr <= n_udword_bits - 1
|
|
var carry: su_int = 0;
|
|
while (sr > 0) {
|
|
// r:q = ((r:q) << 1) | carry
|
|
r[high] = (r[high] << 1) | (r[low] >> (n_uword_bits - 1));
|
|
r[low] = (r[low] << 1) | (q[high] >> (n_uword_bits - 1));
|
|
q[high] = (q[high] << 1) | (q[low] >> (n_uword_bits - 1));
|
|
q[low] = (q[low] << 1) | carry;
|
|
// carry = 0;
|
|
// if (r.all >= d.all)
|
|
// {
|
|
// r.all -= d.all;
|
|
// carry = 1;
|
|
// }
|
|
const s: di_int = (di_int)(*(&du_int)(&d[0]) - *(&du_int)(&r[0]) - 1) >> (n_udword_bits - 1);
|
|
carry = su_int(s & 1);
|
|
*(&du_int)(&r[0]) -= *(&du_int)(&d[0]) & u64(s);
|
|
|
|
sr -= 1;
|
|
}
|
|
*(&du_int)(&q[0]) = (*(&du_int)(&q[0]) << 1) | u64(carry);
|
|
if (var rem ?= maybe_rem) {
|
|
*rem = *(&du_int)(&r[0]);
|
|
}
|
|
return *(&du_int)(&q[0]);
|
|
}
|
|
|
|
export fn __umoddi3(a: du_int, b: du_int) -> du_int {
|
|
@setDebugSafety(this, false);
|
|
|
|
var r: du_int = undefined;
|
|
_ = __udivmoddi4(a, b, &r);
|
|
return r;
|
|
}
|
|
|
|
fn isArmArch() -> bool {
|
|
return switch (@compileVar("arch")) {
|
|
Arch.armv8_2a,
|
|
Arch.armv8_1a,
|
|
Arch.armv8,
|
|
Arch.armv8m_baseline,
|
|
Arch.armv8m_mainline,
|
|
Arch.armv7,
|
|
Arch.armv7em,
|
|
Arch.armv7m,
|
|
Arch.armv7s,
|
|
Arch.armv7k,
|
|
Arch.armv6,
|
|
Arch.armv6m,
|
|
Arch.armv6k,
|
|
Arch.armv6t2,
|
|
Arch.armv5,
|
|
Arch.armv5te,
|
|
Arch.armv4t,
|
|
Arch.armeb => true,
|
|
else => false,
|
|
};
|
|
}
|
|
|
|
export nakedcc fn __aeabi_uidivmod() {
|
|
@setDebugSafety(this, false);
|
|
|
|
if (comptime isArmArch()) {
|
|
asm volatile (
|
|
\\ push { lr }
|
|
\\ sub sp, sp, #4
|
|
\\ mov r2, sp
|
|
\\ bl __udivmodsi4
|
|
\\ ldr r1, [sp]
|
|
\\ add sp, sp, #4
|
|
\\ pop { pc }
|
|
::: "r2", "r1");
|
|
@unreachable();
|
|
}
|
|
|
|
@setFnVisible(this, false);
|
|
}
|
|
|
|
export fn __udivmodsi4(a: su_int, b: su_int, rem: &su_int) -> su_int {
|
|
@setDebugSafety(this, false);
|
|
|
|
const d = __udivsi3(a, b);
|
|
*rem = su_int(si_int(a) -% (si_int(d) * si_int(b)));
|
|
return d;
|
|
}
|
|
|
|
|
|
// TODO make this an alias instead of an extra function call
|
|
// https://github.com/andrewrk/zig/issues/256
|
|
|
|
export fn __aeabi_uidiv(n: su_int, d: su_int) -> su_int {
|
|
@setDebugSafety(this, false);
|
|
|
|
return __udivsi3(n, d);
|
|
}
|
|
|
|
export fn __udivsi3(n: su_int, d: su_int) -> su_int {
|
|
@setDebugSafety(this, false);
|
|
|
|
const n_uword_bits: c_uint = @sizeOf(su_int) * CHAR_BIT;
|
|
// special cases
|
|
if (d == 0)
|
|
return 0; // ?!
|
|
if (n == 0)
|
|
return 0;
|
|
var sr: c_uint = @clz(d) - @clz(n);
|
|
// 0 <= sr <= n_uword_bits - 1 or sr large
|
|
if (sr > n_uword_bits - 1) // d > r
|
|
return 0;
|
|
if (sr == n_uword_bits - 1) // d == 1
|
|
return n;
|
|
sr += 1;
|
|
// 1 <= sr <= n_uword_bits - 1
|
|
// Not a special case
|
|
var q: su_int = n << (n_uword_bits - sr);
|
|
var r: su_int = n >> sr;
|
|
var carry: su_int = 0;
|
|
while (sr > 0; sr -= 1) {
|
|
// r:q = ((r:q) << 1) | carry
|
|
r = (r << 1) | (q >> (n_uword_bits - 1));
|
|
q = (q << 1) | carry;
|
|
// carry = 0;
|
|
// if (r.all >= d.all)
|
|
// {
|
|
// r.all -= d.all;
|
|
// carry = 1;
|
|
// }
|
|
const s = si_int(d - r - 1) >> si_int(n_uword_bits - 1);
|
|
carry = su_int(s & 1);
|
|
r -= d & su_int(s);
|
|
}
|
|
q = (q << 1) | carry;
|
|
return q;
|
|
}
|
|
|
|
test "test_umoddi3" {
|
|
test_one_umoddi3(0, 1, 0);
|
|
test_one_umoddi3(2, 1, 0);
|
|
test_one_umoddi3(0x8000000000000000, 1, 0x0);
|
|
test_one_umoddi3(0x8000000000000000, 2, 0x0);
|
|
test_one_umoddi3(0xFFFFFFFFFFFFFFFF, 2, 0x1);
|
|
}
|
|
|
|
fn test_one_umoddi3(a: du_int, b: du_int, expected_r: du_int) {
|
|
const r = __umoddi3(a, b);
|
|
assert(r == expected_r);
|
|
}
|
|
|
|
test "test_udivmoddi4" {
|
|
const cases = [][4]du_int {
|
|
[]du_int{0x0000000000000000, 0x0000000000000001, 0x0000000000000000, 0x0000000000000000},
|
|
[]du_int{0x0000000080000000, 0x0000000100000001, 0x0000000000000000, 0x0000000080000000},
|
|
[]du_int{0x7FFFFFFF00000001, 0x0000000000000001, 0x7FFFFFFF00000001, 0x0000000000000000},
|
|
[]du_int{0x7FFFFFFF7FFFFFFF, 0xFFFFFFFFFFFFFFFF, 0x0000000000000000, 0x7FFFFFFF7FFFFFFF},
|
|
[]du_int{0x8000000000000002, 0xFFFFFFFFFFFFFFFE, 0x0000000000000000, 0x8000000000000002},
|
|
[]du_int{0x80000000FFFFFFFD, 0xFFFFFFFFFFFFFFFD, 0x0000000000000000, 0x80000000FFFFFFFD},
|
|
[]du_int{0xFFFFFFFD00000010, 0xFFFFFFFF80000000, 0x0000000000000000, 0xFFFFFFFD00000010},
|
|
[]du_int{0xFFFFFFFDFFFFFFFF, 0xFFFFFFFF7FFFFFFF, 0x0000000000000000, 0xFFFFFFFDFFFFFFFF},
|
|
[]du_int{0xFFFFFFFE0747AE14, 0xFFFFFFFF0747AE14, 0x0000000000000000, 0xFFFFFFFE0747AE14},
|
|
[]du_int{0xFFFFFFFF00000001, 0xFFFFFFFF078644FA, 0x0000000000000000, 0xFFFFFFFF00000001},
|
|
[]du_int{0xFFFFFFFF80000000, 0xFFFFFFFF00000010, 0x0000000000000001, 0x000000007FFFFFF0},
|
|
[]du_int{0xFFFFFFFFFFFFFFFF, 0xFFFFFFFFFFFFFFFF, 0x0000000000000001, 0x0000000000000000},
|
|
};
|
|
|
|
for (cases) |case| {
|
|
test_one_udivmoddi4(case[0], case[1], case[2], case[3]);
|
|
}
|
|
}
|
|
|
|
fn test_one_udivmoddi4(a: du_int, b: du_int, expected_q: du_int, expected_r: du_int) {
|
|
var r: du_int = undefined;
|
|
const q = __udivmoddi4(a, b, &r);
|
|
assert(q == expected_q);
|
|
assert(r == expected_r);
|
|
}
|
|
|
|
test "test_udivsi3" {
|
|
const cases = [][3]su_int {
|
|
[]su_int{0x00000000, 0x00000001, 0x00000000},
|
|
[]su_int{0x00000000, 0x00000002, 0x00000000},
|
|
[]su_int{0x00000000, 0x00000003, 0x00000000},
|
|
[]su_int{0x00000000, 0x00000010, 0x00000000},
|
|
[]su_int{0x00000000, 0x078644FA, 0x00000000},
|
|
[]su_int{0x00000000, 0x0747AE14, 0x00000000},
|
|
[]su_int{0x00000000, 0x7FFFFFFF, 0x00000000},
|
|
[]su_int{0x00000000, 0x80000000, 0x00000000},
|
|
[]su_int{0x00000000, 0xFFFFFFFD, 0x00000000},
|
|
[]su_int{0x00000000, 0xFFFFFFFE, 0x00000000},
|
|
[]su_int{0x00000000, 0xFFFFFFFF, 0x00000000},
|
|
[]su_int{0x00000001, 0x00000001, 0x00000001},
|
|
[]su_int{0x00000001, 0x00000002, 0x00000000},
|
|
[]su_int{0x00000001, 0x00000003, 0x00000000},
|
|
[]su_int{0x00000001, 0x00000010, 0x00000000},
|
|
[]su_int{0x00000001, 0x078644FA, 0x00000000},
|
|
[]su_int{0x00000001, 0x0747AE14, 0x00000000},
|
|
[]su_int{0x00000001, 0x7FFFFFFF, 0x00000000},
|
|
[]su_int{0x00000001, 0x80000000, 0x00000000},
|
|
[]su_int{0x00000001, 0xFFFFFFFD, 0x00000000},
|
|
[]su_int{0x00000001, 0xFFFFFFFE, 0x00000000},
|
|
[]su_int{0x00000001, 0xFFFFFFFF, 0x00000000},
|
|
[]su_int{0x00000002, 0x00000001, 0x00000002},
|
|
[]su_int{0x00000002, 0x00000002, 0x00000001},
|
|
[]su_int{0x00000002, 0x00000003, 0x00000000},
|
|
[]su_int{0x00000002, 0x00000010, 0x00000000},
|
|
[]su_int{0x00000002, 0x078644FA, 0x00000000},
|
|
[]su_int{0x00000002, 0x0747AE14, 0x00000000},
|
|
[]su_int{0x00000002, 0x7FFFFFFF, 0x00000000},
|
|
[]su_int{0x00000002, 0x80000000, 0x00000000},
|
|
[]su_int{0x00000002, 0xFFFFFFFD, 0x00000000},
|
|
[]su_int{0x00000002, 0xFFFFFFFE, 0x00000000},
|
|
[]su_int{0x00000002, 0xFFFFFFFF, 0x00000000},
|
|
[]su_int{0x00000003, 0x00000001, 0x00000003},
|
|
[]su_int{0x00000003, 0x00000002, 0x00000001},
|
|
[]su_int{0x00000003, 0x00000003, 0x00000001},
|
|
[]su_int{0x00000003, 0x00000010, 0x00000000},
|
|
[]su_int{0x00000003, 0x078644FA, 0x00000000},
|
|
[]su_int{0x00000003, 0x0747AE14, 0x00000000},
|
|
[]su_int{0x00000003, 0x7FFFFFFF, 0x00000000},
|
|
[]su_int{0x00000003, 0x80000000, 0x00000000},
|
|
[]su_int{0x00000003, 0xFFFFFFFD, 0x00000000},
|
|
[]su_int{0x00000003, 0xFFFFFFFE, 0x00000000},
|
|
[]su_int{0x00000003, 0xFFFFFFFF, 0x00000000},
|
|
[]su_int{0x00000010, 0x00000001, 0x00000010},
|
|
[]su_int{0x00000010, 0x00000002, 0x00000008},
|
|
[]su_int{0x00000010, 0x00000003, 0x00000005},
|
|
[]su_int{0x00000010, 0x00000010, 0x00000001},
|
|
[]su_int{0x00000010, 0x078644FA, 0x00000000},
|
|
[]su_int{0x00000010, 0x0747AE14, 0x00000000},
|
|
[]su_int{0x00000010, 0x7FFFFFFF, 0x00000000},
|
|
[]su_int{0x00000010, 0x80000000, 0x00000000},
|
|
[]su_int{0x00000010, 0xFFFFFFFD, 0x00000000},
|
|
[]su_int{0x00000010, 0xFFFFFFFE, 0x00000000},
|
|
[]su_int{0x00000010, 0xFFFFFFFF, 0x00000000},
|
|
[]su_int{0x078644FA, 0x00000001, 0x078644FA},
|
|
[]su_int{0x078644FA, 0x00000002, 0x03C3227D},
|
|
[]su_int{0x078644FA, 0x00000003, 0x028216FE},
|
|
[]su_int{0x078644FA, 0x00000010, 0x0078644F},
|
|
[]su_int{0x078644FA, 0x078644FA, 0x00000001},
|
|
[]su_int{0x078644FA, 0x0747AE14, 0x00000001},
|
|
[]su_int{0x078644FA, 0x7FFFFFFF, 0x00000000},
|
|
[]su_int{0x078644FA, 0x80000000, 0x00000000},
|
|
[]su_int{0x078644FA, 0xFFFFFFFD, 0x00000000},
|
|
[]su_int{0x078644FA, 0xFFFFFFFE, 0x00000000},
|
|
[]su_int{0x078644FA, 0xFFFFFFFF, 0x00000000},
|
|
[]su_int{0x0747AE14, 0x00000001, 0x0747AE14},
|
|
[]su_int{0x0747AE14, 0x00000002, 0x03A3D70A},
|
|
[]su_int{0x0747AE14, 0x00000003, 0x026D3A06},
|
|
[]su_int{0x0747AE14, 0x00000010, 0x00747AE1},
|
|
[]su_int{0x0747AE14, 0x078644FA, 0x00000000},
|
|
[]su_int{0x0747AE14, 0x0747AE14, 0x00000001},
|
|
[]su_int{0x0747AE14, 0x7FFFFFFF, 0x00000000},
|
|
[]su_int{0x0747AE14, 0x80000000, 0x00000000},
|
|
[]su_int{0x0747AE14, 0xFFFFFFFD, 0x00000000},
|
|
[]su_int{0x0747AE14, 0xFFFFFFFE, 0x00000000},
|
|
[]su_int{0x0747AE14, 0xFFFFFFFF, 0x00000000},
|
|
[]su_int{0x7FFFFFFF, 0x00000001, 0x7FFFFFFF},
|
|
[]su_int{0x7FFFFFFF, 0x00000002, 0x3FFFFFFF},
|
|
[]su_int{0x7FFFFFFF, 0x00000003, 0x2AAAAAAA},
|
|
[]su_int{0x7FFFFFFF, 0x00000010, 0x07FFFFFF},
|
|
[]su_int{0x7FFFFFFF, 0x078644FA, 0x00000011},
|
|
[]su_int{0x7FFFFFFF, 0x0747AE14, 0x00000011},
|
|
[]su_int{0x7FFFFFFF, 0x7FFFFFFF, 0x00000001},
|
|
[]su_int{0x7FFFFFFF, 0x80000000, 0x00000000},
|
|
[]su_int{0x7FFFFFFF, 0xFFFFFFFD, 0x00000000},
|
|
[]su_int{0x7FFFFFFF, 0xFFFFFFFE, 0x00000000},
|
|
[]su_int{0x7FFFFFFF, 0xFFFFFFFF, 0x00000000},
|
|
[]su_int{0x80000000, 0x00000001, 0x80000000},
|
|
[]su_int{0x80000000, 0x00000002, 0x40000000},
|
|
[]su_int{0x80000000, 0x00000003, 0x2AAAAAAA},
|
|
[]su_int{0x80000000, 0x00000010, 0x08000000},
|
|
[]su_int{0x80000000, 0x078644FA, 0x00000011},
|
|
[]su_int{0x80000000, 0x0747AE14, 0x00000011},
|
|
[]su_int{0x80000000, 0x7FFFFFFF, 0x00000001},
|
|
[]su_int{0x80000000, 0x80000000, 0x00000001},
|
|
[]su_int{0x80000000, 0xFFFFFFFD, 0x00000000},
|
|
[]su_int{0x80000000, 0xFFFFFFFE, 0x00000000},
|
|
[]su_int{0x80000000, 0xFFFFFFFF, 0x00000000},
|
|
[]su_int{0xFFFFFFFD, 0x00000001, 0xFFFFFFFD},
|
|
[]su_int{0xFFFFFFFD, 0x00000002, 0x7FFFFFFE},
|
|
[]su_int{0xFFFFFFFD, 0x00000003, 0x55555554},
|
|
[]su_int{0xFFFFFFFD, 0x00000010, 0x0FFFFFFF},
|
|
[]su_int{0xFFFFFFFD, 0x078644FA, 0x00000022},
|
|
[]su_int{0xFFFFFFFD, 0x0747AE14, 0x00000023},
|
|
[]su_int{0xFFFFFFFD, 0x7FFFFFFF, 0x00000001},
|
|
[]su_int{0xFFFFFFFD, 0x80000000, 0x00000001},
|
|
[]su_int{0xFFFFFFFD, 0xFFFFFFFD, 0x00000001},
|
|
[]su_int{0xFFFFFFFD, 0xFFFFFFFE, 0x00000000},
|
|
[]su_int{0xFFFFFFFD, 0xFFFFFFFF, 0x00000000},
|
|
[]su_int{0xFFFFFFFE, 0x00000001, 0xFFFFFFFE},
|
|
[]su_int{0xFFFFFFFE, 0x00000002, 0x7FFFFFFF},
|
|
[]su_int{0xFFFFFFFE, 0x00000003, 0x55555554},
|
|
[]su_int{0xFFFFFFFE, 0x00000010, 0x0FFFFFFF},
|
|
[]su_int{0xFFFFFFFE, 0x078644FA, 0x00000022},
|
|
[]su_int{0xFFFFFFFE, 0x0747AE14, 0x00000023},
|
|
[]su_int{0xFFFFFFFE, 0x7FFFFFFF, 0x00000002},
|
|
[]su_int{0xFFFFFFFE, 0x80000000, 0x00000001},
|
|
[]su_int{0xFFFFFFFE, 0xFFFFFFFD, 0x00000001},
|
|
[]su_int{0xFFFFFFFE, 0xFFFFFFFE, 0x00000001},
|
|
[]su_int{0xFFFFFFFE, 0xFFFFFFFF, 0x00000000},
|
|
[]su_int{0xFFFFFFFF, 0x00000001, 0xFFFFFFFF},
|
|
[]su_int{0xFFFFFFFF, 0x00000002, 0x7FFFFFFF},
|
|
[]su_int{0xFFFFFFFF, 0x00000003, 0x55555555},
|
|
[]su_int{0xFFFFFFFF, 0x00000010, 0x0FFFFFFF},
|
|
[]su_int{0xFFFFFFFF, 0x078644FA, 0x00000022},
|
|
[]su_int{0xFFFFFFFF, 0x0747AE14, 0x00000023},
|
|
[]su_int{0xFFFFFFFF, 0x7FFFFFFF, 0x00000002},
|
|
[]su_int{0xFFFFFFFF, 0x80000000, 0x00000001},
|
|
[]su_int{0xFFFFFFFF, 0xFFFFFFFD, 0x00000001},
|
|
[]su_int{0xFFFFFFFF, 0xFFFFFFFE, 0x00000001},
|
|
[]su_int{0xFFFFFFFF, 0xFFFFFFFF, 0x00000001},
|
|
};
|
|
|
|
for (cases) |case| {
|
|
test_one_udivsi3(case[0], case[1], case[2]);
|
|
}
|
|
}
|
|
|
|
fn test_one_udivsi3(a: su_int, b: su_int, expected_q: su_int) {
|
|
const q: su_int = __udivsi3(a, b);
|
|
assert(q == expected_q);
|
|
}
|
|
|
|
|
|
fn assert(ok: bool) {
|
|
if (!ok) @unreachable();
|
|
}
|