authorgravatar for jan.hafer@rwth-aachen.deJan Philipp Hafer <jan.hafer@rwth-aachen.de> 2021-12-12 21:19:25+01:00
committergravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2021-12-14 14:21:30-08:00
log20328e976fe3aea206fbd7a82090c1b61298398a
tree8c6954d566e2801761f1dad665d32d26d3c67cfa
parent0550198c9877c37c53b67f853968e3e4ce89c2ef

compiler_rt: add __cmpXi2 and __ucmpXi2

- adds __cmpsi2, __cmpdi2, __cmpti2 - adds __ucmpsi2, __ucmpdi2, __ucmpti2 - use 2 if statements with 2 temporaries and a constant - tests: MIN, MIN+1, MIN/2, -1, 0, 1, MAX/2, MAX-1, MAX if applicable See #1290

9 files changed, 521 insertions(+), 1 deletions(-)

CMakeLists.txt+1
...@@ -448,6 +448,7 @@ set(ZIG_STAGE2_SOURCES...@@ -448,6 +448,7 @@ set(ZIG_STAGE2_SOURCES
448 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/atomics.zig"448 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/atomics.zig"
449 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/bswap.zig"449 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/bswap.zig"
450 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/clear_cache.zig"450 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/clear_cache.zig"
451 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/cmp.zig"
451 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/compareXf2.zig"452 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/compareXf2.zig"
452 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/count0bits.zig"453 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/count0bits.zig"
453 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/divdf3.zig"454 "${CMAKE_SOURCE_DIR}/lib/std/special/compiler_rt/divdf3.zig"
lib/std/special/compiler_rt.zig+13-1
...@@ -421,10 +421,22 @@ comptime {...@@ -421,10 +421,22 @@ comptime {
421421
422 // missing: Integral arithmetic which returns if overflow422 // missing: Integral arithmetic which returns if overflow
423423
424 // missing: Integral comparison424 // Integral comparison
425 // (a < b) => 0425 // (a < b) => 0
426 // (a == b) => 1426 // (a == b) => 1
427 // (a > b) => 2427 // (a > b) => 2
428 const __cmpsi2 = @import("compiler_rt/cmp.zig").__cmpsi2;
429 @export(__cmpsi2, .{ .name = "__cmpsi2", .linkage = linkage });
430 const __cmpdi2 = @import("compiler_rt/cmp.zig").__cmpdi2;
431 @export(__cmpdi2, .{ .name = "__cmpdi2", .linkage = linkage });
432 const __cmpti2 = @import("compiler_rt/cmp.zig").__cmpti2;
433 @export(__cmpti2, .{ .name = "__cmpti2", .linkage = linkage });
434 const __ucmpsi2 = @import("compiler_rt/cmp.zig").__ucmpsi2;
435 @export(__ucmpsi2, .{ .name = "__ucmpsi2", .linkage = linkage });
436 const __ucmpdi2 = @import("compiler_rt/cmp.zig").__ucmpdi2;
437 @export(__ucmpdi2, .{ .name = "__ucmpdi2", .linkage = linkage });
438 const __ucmpti2 = @import("compiler_rt/cmp.zig").__ucmpti2;
439 @export(__ucmpti2, .{ .name = "__ucmpti2", .linkage = linkage });
428440
429 // missing: Floating point raised to integer power441 // missing: Floating point raised to integer power
430442
lib/std/special/compiler_rt/cmp.zig created+45
...@@ -0,0 +1,45 @@
1const std = @import("std");
2const builtin = @import("builtin");
3
4// cmp - signed compare
5// - cmpXi2_generic for unoptimized little and big endian
6
7// ucmp - unsigned compare
8// - ucmpXi2_generic for unoptimized little and big endian
9
10// a < b => 0
11// a == b => 1
12// a > b => 2
13
14fn XcmpXi2_generic(comptime T: type) fn (a: T, b: T) callconv(.C) i32 {
15 return struct {
16 fn f(a: T, b: T) callconv(.C) i32 {
17 @setRuntimeSafety(builtin.is_test);
18 var cmp1: i32 = 0;
19 var cmp2: i32 = 0;
20 if (a > b)
21 cmp1 = 1;
22 if (a < b)
23 cmp2 = 1;
24 return cmp1 - cmp2 + 1;
25 }
26 }.f;
27}
28
29pub const __cmpsi2 = XcmpXi2_generic(i32);
30pub const __cmpdi2 = XcmpXi2_generic(i64);
31pub const __cmpti2 = XcmpXi2_generic(i128);
32
33pub const __ucmpsi2 = XcmpXi2_generic(u32);
34pub const __ucmpdi2 = XcmpXi2_generic(u64);
35pub const __ucmpti2 = XcmpXi2_generic(u128);
36
37test {
38 _ = @import("cmpsi2_test.zig");
39 _ = @import("cmpdi2_test.zig");
40 _ = @import("cmpti2_test.zig");
41
42 _ = @import("ucmpsi2_test.zig");
43 _ = @import("ucmpdi2_test.zig");
44 _ = @import("ucmpti2_test.zig");
45}
lib/std/special/compiler_rt/cmpdi2_test.zig created+105
...@@ -0,0 +1,105 @@
1const cmp = @import("cmp.zig");
2const testing = @import("std").testing;
3
4fn test__cmpdi2(a: i64, b: i64, expected: i64) !void {
5 var result = cmp.__cmpdi2(a, b);
6 try testing.expectEqual(expected, result);
7}
8
9test "cmpdi2" {
10 // minInt == -9223372036854775808
11 // maxInt == 9223372036854775807
12 // minInt/2 == -4611686018427387904
13 // maxInt/2 == 4611686018427387903
14 // 1. equality minInt, minInt+1, minInt/2, 0, maxInt/2, maxInt-1, maxInt
15 try test__cmpdi2(-9223372036854775808, -9223372036854775808, 1);
16 try test__cmpdi2(-9223372036854775807, -9223372036854775807, 1);
17 try test__cmpdi2(-4611686018427387904, -4611686018427387904, 1);
18 try test__cmpdi2(-1, -1, 1);
19 try test__cmpdi2(0, 0, 1);
20 try test__cmpdi2(1, 1, 1);
21 try test__cmpdi2(4611686018427387903, 4611686018427387903, 1);
22 try test__cmpdi2(9223372036854775806, 9223372036854775806, 1);
23 try test__cmpdi2(9223372036854775807, 9223372036854775807, 1);
24 // 2. cmp minInt, { minInt + 1, minInt/2, -1, 0, 1, maxInt/2, maxInt-1, maxInt}
25 try test__cmpdi2(-9223372036854775808, -9223372036854775807, 0);
26 try test__cmpdi2(-9223372036854775808, -4611686018427387904, 0);
27 try test__cmpdi2(-9223372036854775808, -1, 0);
28 try test__cmpdi2(-9223372036854775808, 0, 0);
29 try test__cmpdi2(-9223372036854775808, 1, 0);
30 try test__cmpdi2(-9223372036854775808, 4611686018427387903, 0);
31 try test__cmpdi2(-9223372036854775808, 9223372036854775806, 0);
32 try test__cmpdi2(-9223372036854775808, 9223372036854775807, 0);
33 // 3. cmp minInt+1, {minInt, minInt/2, -1,0,1, maxInt/2, maxInt-1, maxInt}
34 try test__cmpdi2(-9223372036854775807, -9223372036854775808, 2);
35 try test__cmpdi2(-9223372036854775807, -4611686018427387904, 0);
36 try test__cmpdi2(-9223372036854775807, -1, 0);
37 try test__cmpdi2(-9223372036854775807, 0, 0);
38 try test__cmpdi2(-9223372036854775807, 1, 0);
39 try test__cmpdi2(-9223372036854775807, 4611686018427387903, 0);
40 try test__cmpdi2(-9223372036854775807, 9223372036854775806, 0);
41 try test__cmpdi2(-9223372036854775807, 9223372036854775807, 0);
42 // 4. cmp minInt/2, {minInt, minInt + 1, -1,0,1, maxInt/2, maxInt-1, maxInt}
43 try test__cmpdi2(-4611686018427387904, -9223372036854775808, 2);
44 try test__cmpdi2(-4611686018427387904, -9223372036854775807, 2);
45 try test__cmpdi2(-4611686018427387904, -1, 0);
46 try test__cmpdi2(-4611686018427387904, 0, 0);
47 try test__cmpdi2(-4611686018427387904, 1, 0);
48 try test__cmpdi2(-4611686018427387904, 4611686018427387903, 0);
49 try test__cmpdi2(-4611686018427387904, 9223372036854775806, 0);
50 try test__cmpdi2(-4611686018427387904, 9223372036854775807, 0);
51 // 5. cmp -1, {minInt, minInt + 1, minInt/2, 0,1, maxInt/2, maxInt-1, maxInt}
52 try test__cmpdi2(-1, -9223372036854775808, 2);
53 try test__cmpdi2(-1, -9223372036854775807, 2);
54 try test__cmpdi2(-1, -4611686018427387904, 2);
55 try test__cmpdi2(-1, 0, 0);
56 try test__cmpdi2(-1, 1, 0);
57 try test__cmpdi2(-1, 4611686018427387903, 0);
58 try test__cmpdi2(-1, 9223372036854775806, 0);
59 try test__cmpdi2(-1, 9223372036854775807, 0);
60 // 6. cmp 0, {minInt, minInt + 1, minInt/2, -1, 1, maxInt/2, maxInt-1, maxInt}
61 try test__cmpdi2(0, -9223372036854775808, 2);
62 try test__cmpdi2(0, -9223372036854775807, 2);
63 try test__cmpdi2(0, -4611686018427387904, 2);
64 try test__cmpdi2(0, -1, 2);
65 try test__cmpdi2(0, 1, 0);
66 try test__cmpdi2(0, 4611686018427387903, 0);
67 try test__cmpdi2(0, 9223372036854775806, 0);
68 try test__cmpdi2(0, 9223372036854775807, 0);
69 // 7. cmp 1, {minInt, minInt + 1, minInt/2, -1,0, maxInt/2, maxInt-1, maxInt}
70 try test__cmpdi2(1, -9223372036854775808, 2);
71 try test__cmpdi2(1, -9223372036854775807, 2);
72 try test__cmpdi2(1, -4611686018427387904, 2);
73 try test__cmpdi2(1, -1, 2);
74 try test__cmpdi2(1, 0, 2);
75 try test__cmpdi2(1, 4611686018427387903, 0);
76 try test__cmpdi2(1, 9223372036854775806, 0);
77 try test__cmpdi2(1, 9223372036854775807, 0);
78 // 8. cmp maxInt/2, {minInt, minInt + 1, minInt/2, -1,0,1, maxInt-1, maxInt}
79 try test__cmpdi2(4611686018427387903, -9223372036854775808, 2);
80 try test__cmpdi2(4611686018427387903, -9223372036854775807, 2);
81 try test__cmpdi2(4611686018427387903, -4611686018427387904, 2);
82 try test__cmpdi2(4611686018427387903, -1, 2);
83 try test__cmpdi2(4611686018427387903, 0, 2);
84 try test__cmpdi2(4611686018427387903, 1, 2);
85 try test__cmpdi2(4611686018427387903, 9223372036854775806, 0);
86 try test__cmpdi2(4611686018427387903, 9223372036854775807, 0);
87 // 9. cmp maxInt-1, {minInt, minInt + 1, minInt/2, -1,0,1, maxInt/2, maxInt}
88 try test__cmpdi2(9223372036854775806, -9223372036854775808, 2);
89 try test__cmpdi2(9223372036854775806, -9223372036854775807, 2);
90 try test__cmpdi2(9223372036854775806, -4611686018427387904, 2);
91 try test__cmpdi2(9223372036854775806, -1, 2);
92 try test__cmpdi2(9223372036854775806, 0, 2);
93 try test__cmpdi2(9223372036854775806, 1, 2);
94 try test__cmpdi2(9223372036854775806, 4611686018427387903, 2);
95 try test__cmpdi2(9223372036854775806, 9223372036854775807, 0);
96 // 10.cmp maxInt, {minInt, minInt + 1, minInt/2, -1,0,1, maxInt/2, maxInt-1, }
97 try test__cmpdi2(9223372036854775807, -9223372036854775808, 2);
98 try test__cmpdi2(9223372036854775807, -9223372036854775807, 2);
99 try test__cmpdi2(9223372036854775807, -4611686018427387904, 2);
100 try test__cmpdi2(9223372036854775807, -1, 2);
101 try test__cmpdi2(9223372036854775807, 0, 2);
102 try test__cmpdi2(9223372036854775807, 1, 2);
103 try test__cmpdi2(9223372036854775807, 4611686018427387903, 2);
104 try test__cmpdi2(9223372036854775807, 9223372036854775806, 2);
105}
lib/std/special/compiler_rt/cmpsi2_test.zig created+105
...@@ -0,0 +1,105 @@
1const cmp = @import("cmp.zig");
2const testing = @import("std").testing;
3
4fn test__cmpsi2(a: i32, b: i32, expected: i32) !void {
5 var result = cmp.__cmpsi2(a, b);
6 try testing.expectEqual(expected, result);
7}
8
9test "cmpsi2" {
10 // minInt == -2147483648
11 // maxInt == 2147483647
12 // minInt/2 == -1073741824
13 // maxInt/2 == 1073741823
14 // 1. equality minInt, minInt+1, minInt/2, -1, 0, 1, maxInt/2, maxInt-1, maxInt
15 try test__cmpsi2(-2147483648, -2147483648, 1);
16 try test__cmpsi2(-2147483647, -2147483647, 1);
17 try test__cmpsi2(-1073741824, -1073741824, 1);
18 try test__cmpsi2(-1, -1, 1);
19 try test__cmpsi2(0, 0, 1);
20 try test__cmpsi2(1, 1, 1);
21 try test__cmpsi2(1073741823, 1073741823, 1);
22 try test__cmpsi2(2147483646, 2147483646, 1);
23 try test__cmpsi2(2147483647, 2147483647, 1);
24 // 2. cmp minInt, { minInt + 1, minInt/2, -1,0,1, maxInt/2, maxInt-1, maxInt}
25 try test__cmpsi2(-2147483648, -2147483647, 0);
26 try test__cmpsi2(-2147483648, -1073741824, 0);
27 try test__cmpsi2(-2147483648, -1, 0);
28 try test__cmpsi2(-2147483648, 0, 0);
29 try test__cmpsi2(-2147483648, 1, 0);
30 try test__cmpsi2(-2147483648, 1073741823, 0);
31 try test__cmpsi2(-2147483648, 2147483646, 0);
32 try test__cmpsi2(-2147483648, 2147483647, 0);
33 // 3. cmp minInt+1, {minInt, minInt/2, -1,0,1, maxInt/2, maxInt-1, maxInt}
34 try test__cmpsi2(-2147483647, -2147483648, 2);
35 try test__cmpsi2(-2147483647, -1073741824, 0);
36 try test__cmpsi2(-2147483647, -1, 0);
37 try test__cmpsi2(-2147483647, 0, 0);
38 try test__cmpsi2(-2147483647, 1, 0);
39 try test__cmpsi2(-2147483647, 1073741823, 0);
40 try test__cmpsi2(-2147483647, 2147483646, 0);
41 try test__cmpsi2(-2147483647, 2147483647, 0);
42 // 4. cmp minInt/2, {minInt, minInt + 1, -1,0,1, maxInt/2, maxInt-1, maxInt}
43 try test__cmpsi2(-1073741824, -2147483648, 2);
44 try test__cmpsi2(-1073741824, -2147483647, 2);
45 try test__cmpsi2(-1073741824, -1, 0);
46 try test__cmpsi2(-1073741824, 0, 0);
47 try test__cmpsi2(-1073741824, 1, 0);
48 try test__cmpsi2(-1073741824, 1073741823, 0);
49 try test__cmpsi2(-1073741824, 2147483646, 0);
50 try test__cmpsi2(-1073741824, 2147483647, 0);
51 // 5. cmp -1, {minInt, minInt + 1, minInt/2, 0,1, maxInt/2, maxInt-1, maxInt}
52 try test__cmpsi2(-1, -2147483648, 2);
53 try test__cmpsi2(-1, -2147483647, 2);
54 try test__cmpsi2(-1, -1073741824, 2);
55 try test__cmpsi2(-1, 0, 0);
56 try test__cmpsi2(-1, 1, 0);
57 try test__cmpsi2(-1, 1073741823, 0);
58 try test__cmpsi2(-1, 2147483646, 0);
59 try test__cmpsi2(-1, 2147483647, 0);
60 // 6. cmp 0, {minInt, minInt + 1, minInt/2, -1, 1, maxInt/2, maxInt-1, maxInt}
61 try test__cmpsi2(0, -2147483648, 2);
62 try test__cmpsi2(0, -2147483647, 2);
63 try test__cmpsi2(0, -1073741824, 2);
64 try test__cmpsi2(0, -1, 2);
65 try test__cmpsi2(0, 1, 0);
66 try test__cmpsi2(0, 1073741823, 0);
67 try test__cmpsi2(0, 2147483646, 0);
68 try test__cmpsi2(0, 2147483647, 0);
69 // 7. cmp 1, {minInt, minInt + 1, minInt/2, -1,0, maxInt/2, maxInt-1, maxInt}
70 try test__cmpsi2(1, -2147483648, 2);
71 try test__cmpsi2(1, -2147483647, 2);
72 try test__cmpsi2(1, -1073741824, 2);
73 try test__cmpsi2(1, -1, 2);
74 try test__cmpsi2(1, 0, 2);
75 try test__cmpsi2(1, 1073741823, 0);
76 try test__cmpsi2(1, 2147483646, 0);
77 try test__cmpsi2(1, 2147483647, 0);
78 // 8. cmp maxInt/2, {minInt, minInt + 1, minInt/2, -1, 0, 1, maxInt-1, maxInt}
79 try test__cmpsi2(1073741823, -2147483648, 2);
80 try test__cmpsi2(1073741823, -2147483647, 2);
81 try test__cmpsi2(1073741823, -1073741824, 2);
82 try test__cmpsi2(1073741823, -1, 2);
83 try test__cmpsi2(1073741823, 0, 2);
84 try test__cmpsi2(1073741823, 1, 2);
85 try test__cmpsi2(1073741823, 2147483646, 0);
86 try test__cmpsi2(1073741823, 2147483647, 0);
87 // 9. cmp maxInt-1, {minInt, minInt + 1, minInt/2, -1, 0, 1, maxInt/2, maxInt}
88 try test__cmpsi2(2147483646, -2147483648, 2);
89 try test__cmpsi2(2147483646, -2147483647, 2);
90 try test__cmpsi2(2147483646, -1073741824, 2);
91 try test__cmpsi2(2147483646, -1, 2);
92 try test__cmpsi2(2147483646, 0, 2);
93 try test__cmpsi2(2147483646, 1, 2);
94 try test__cmpsi2(2147483646, 1073741823, 2);
95 try test__cmpsi2(2147483646, 2147483647, 0);
96 // 10.cmp maxInt, {minInt, minInt + 1, minInt/2, -1, 0, 1, maxInt/2, maxInt-1, }
97 try test__cmpsi2(2147483647, -2147483648, 2);
98 try test__cmpsi2(2147483647, -2147483647, 2);
99 try test__cmpsi2(2147483647, -1073741824, 2);
100 try test__cmpsi2(2147483647, -1, 2);
101 try test__cmpsi2(2147483647, 0, 2);
102 try test__cmpsi2(2147483647, 1, 2);
103 try test__cmpsi2(2147483647, 1073741823, 2);
104 try test__cmpsi2(2147483647, 2147483646, 2);
105}
lib/std/special/compiler_rt/cmpti2_test.zig created+105
...@@ -0,0 +1,105 @@
1const cmp = @import("cmp.zig");
2const testing = @import("std").testing;
3
4fn test__cmpti2(a: i128, b: i128, expected: i128) !void {
5 var result = cmp.__cmpti2(a, b);
6 try testing.expectEqual(expected, result);
7}
8
9test "cmpti2" {
10 // minInt == -170141183460469231731687303715884105728
11 // maxInt == 170141183460469231731687303715884105727
12 // minInt/2 == -85070591730234615865843651857942052864
13 // maxInt/2 == 85070591730234615865843651857942052863
14 // 1. equality minInt, minInt+1, minInt/2, 0, maxInt/2, maxInt-1, maxInt
15 try test__cmpti2(-170141183460469231731687303715884105728, -170141183460469231731687303715884105728, 1);
16 try test__cmpti2(-170141183460469231731687303715884105727, -170141183460469231731687303715884105727, 1);
17 try test__cmpti2(-85070591730234615865843651857942052864, -85070591730234615865843651857942052864, 1);
18 try test__cmpti2(-1, -1, 1);
19 try test__cmpti2(0, 0, 1);
20 try test__cmpti2(1, 1, 1);
21 try test__cmpti2(85070591730234615865843651857942052863, 85070591730234615865843651857942052863, 1);
22 try test__cmpti2(170141183460469231731687303715884105726, 170141183460469231731687303715884105726, 1);
23 try test__cmpti2(170141183460469231731687303715884105727, 170141183460469231731687303715884105727, 1);
24 // 2. cmp minInt, { minInt + 1, minInt/2, -1,0,1, maxInt/2, maxInt-1, maxInt}
25 try test__cmpti2(-170141183460469231731687303715884105728, -170141183460469231731687303715884105727, 0);
26 try test__cmpti2(-170141183460469231731687303715884105728, -85070591730234615865843651857942052864, 0);
27 try test__cmpti2(-170141183460469231731687303715884105728, -1, 0);
28 try test__cmpti2(-170141183460469231731687303715884105728, 0, 0);
29 try test__cmpti2(-170141183460469231731687303715884105728, 1, 0);
30 try test__cmpti2(-170141183460469231731687303715884105728, 85070591730234615865843651857942052863, 0);
31 try test__cmpti2(-170141183460469231731687303715884105728, 170141183460469231731687303715884105726, 0);
32 try test__cmpti2(-170141183460469231731687303715884105728, 170141183460469231731687303715884105727, 0);
33 // 3. cmp minInt+1, {minInt, minInt/2, -1,0,1, maxInt/2, maxInt-1, maxInt}
34 try test__cmpti2(-170141183460469231731687303715884105727, -170141183460469231731687303715884105728, 2);
35 try test__cmpti2(-170141183460469231731687303715884105727, -85070591730234615865843651857942052864, 0);
36 try test__cmpti2(-170141183460469231731687303715884105727, -1, 0);
37 try test__cmpti2(-170141183460469231731687303715884105727, 0, 0);
38 try test__cmpti2(-170141183460469231731687303715884105727, 1, 0);
39 try test__cmpti2(-170141183460469231731687303715884105727, 85070591730234615865843651857942052863, 0);
40 try test__cmpti2(-170141183460469231731687303715884105727, 170141183460469231731687303715884105726, 0);
41 try test__cmpti2(-170141183460469231731687303715884105727, 170141183460469231731687303715884105727, 0);
42 // 4. cmp minInt/2, {minInt, minInt + 1, -1,0,1, maxInt/2, maxInt-1, maxInt}
43 try test__cmpti2(-85070591730234615865843651857942052864, -170141183460469231731687303715884105728, 2);
44 try test__cmpti2(-85070591730234615865843651857942052864, -170141183460469231731687303715884105727, 2);
45 try test__cmpti2(-85070591730234615865843651857942052864, -1, 0);
46 try test__cmpti2(-85070591730234615865843651857942052864, 0, 0);
47 try test__cmpti2(-85070591730234615865843651857942052864, 1, 0);
48 try test__cmpti2(-85070591730234615865843651857942052864, 85070591730234615865843651857942052863, 0);
49 try test__cmpti2(-85070591730234615865843651857942052864, 170141183460469231731687303715884105726, 0);
50 try test__cmpti2(-85070591730234615865843651857942052864, 170141183460469231731687303715884105727, 0);
51 // 5. cmp -1, {minInt, minInt + 1, minInt/2, 0,1, maxInt/2, maxInt-1, maxInt}
52 try test__cmpti2(-1, -170141183460469231731687303715884105728, 2);
53 try test__cmpti2(-1, -170141183460469231731687303715884105727, 2);
54 try test__cmpti2(-1, -85070591730234615865843651857942052864, 2);
55 try test__cmpti2(-1, 0, 0);
56 try test__cmpti2(-1, 1, 0);
57 try test__cmpti2(-1, 85070591730234615865843651857942052863, 0);
58 try test__cmpti2(-1, 170141183460469231731687303715884105726, 0);
59 try test__cmpti2(-1, 170141183460469231731687303715884105727, 0);
60 // 6. cmp 0, {minInt, minInt + 1, minInt/2, -1, 1, maxInt/2, maxInt-1, maxInt}
61 try test__cmpti2(0, -170141183460469231731687303715884105728, 2);
62 try test__cmpti2(0, -170141183460469231731687303715884105727, 2);
63 try test__cmpti2(0, -85070591730234615865843651857942052864, 2);
64 try test__cmpti2(0, -1, 2);
65 try test__cmpti2(0, 1, 0);
66 try test__cmpti2(0, 85070591730234615865843651857942052863, 0);
67 try test__cmpti2(0, 170141183460469231731687303715884105726, 0);
68 try test__cmpti2(0, 170141183460469231731687303715884105727, 0);
69 // 7. cmp 1, {minInt, minInt + 1, minInt/2, -1,0, maxInt/2, maxInt-1, maxInt}
70 try test__cmpti2(1, -170141183460469231731687303715884105728, 2);
71 try test__cmpti2(1, -170141183460469231731687303715884105727, 2);
72 try test__cmpti2(1, -85070591730234615865843651857942052864, 2);
73 try test__cmpti2(1, -1, 2);
74 try test__cmpti2(1, 0, 2);
75 try test__cmpti2(1, 85070591730234615865843651857942052863, 0);
76 try test__cmpti2(1, 170141183460469231731687303715884105726, 0);
77 try test__cmpti2(1, 170141183460469231731687303715884105727, 0);
78 // 8. cmp maxInt/2, {minInt, minInt + 1, minInt/2, -1,0,1, maxInt-1, maxInt}
79 try test__cmpti2(85070591730234615865843651857942052863, -170141183460469231731687303715884105728, 2);
80 try test__cmpti2(85070591730234615865843651857942052863, -170141183460469231731687303715884105727, 2);
81 try test__cmpti2(85070591730234615865843651857942052863, -85070591730234615865843651857942052864, 2);
82 try test__cmpti2(85070591730234615865843651857942052863, -1, 2);
83 try test__cmpti2(85070591730234615865843651857942052863, 0, 2);
84 try test__cmpti2(85070591730234615865843651857942052863, 1, 2);
85 try test__cmpti2(85070591730234615865843651857942052863, 170141183460469231731687303715884105726, 0);
86 try test__cmpti2(85070591730234615865843651857942052863, 170141183460469231731687303715884105727, 0);
87 // 9. cmp maxInt-1, {minInt, minInt + 1, minInt/2, -1,0,1, maxInt/2, maxInt}
88 try test__cmpti2(170141183460469231731687303715884105726, -170141183460469231731687303715884105728, 2);
89 try test__cmpti2(170141183460469231731687303715884105726, -170141183460469231731687303715884105727, 2);
90 try test__cmpti2(170141183460469231731687303715884105726, -85070591730234615865843651857942052864, 2);
91 try test__cmpti2(170141183460469231731687303715884105726, -1, 2);
92 try test__cmpti2(170141183460469231731687303715884105726, 0, 2);
93 try test__cmpti2(170141183460469231731687303715884105726, 1, 2);
94 try test__cmpti2(170141183460469231731687303715884105726, 85070591730234615865843651857942052863, 2);
95 try test__cmpti2(170141183460469231731687303715884105726, 170141183460469231731687303715884105727, 0);
96 // 10.cmp maxInt, {minInt, minInt + 1, minInt/2, -1,0,1, maxInt/2, maxInt-1, }
97 try test__cmpti2(170141183460469231731687303715884105727, -170141183460469231731687303715884105728, 2);
98 try test__cmpti2(170141183460469231731687303715884105727, -170141183460469231731687303715884105727, 2);
99 try test__cmpti2(170141183460469231731687303715884105727, -85070591730234615865843651857942052864, 2);
100 try test__cmpti2(170141183460469231731687303715884105727, -1, 2);
101 try test__cmpti2(170141183460469231731687303715884105727, 0, 2);
102 try test__cmpti2(170141183460469231731687303715884105727, 1, 2);
103 try test__cmpti2(170141183460469231731687303715884105727, 85070591730234615865843651857942052863, 2);
104 try test__cmpti2(170141183460469231731687303715884105727, 170141183460469231731687303715884105726, 2);
105}
lib/std/special/compiler_rt/ucmpdi2_test.zig created+49
...@@ -0,0 +1,49 @@
1const cmp = @import("cmp.zig");
2const testing = @import("std").testing;
3
4fn test__ucmpdi2(a: u64, b: u64, expected: i32) !void {
5 var result = cmp.__ucmpdi2(a, b);
6 try testing.expectEqual(expected, result);
7}
8
9test "ucmpdi2" {
10 // minInt == 0
11 // maxInt == 18446744073709551615
12 // minInt/2 == 0
13 // maxInt/2 == 9223372036854775807
14 // 1. equality minInt, minInt/2, 0, maxInt/2, maxInt
15 try test__ucmpdi2(0, 0, 1);
16 try test__ucmpdi2(1, 1, 1);
17 try test__ucmpdi2(9223372036854775807, 9223372036854775807, 1);
18 try test__ucmpdi2(18446744073709551614, 18446744073709551614, 1);
19 try test__ucmpdi2(18446744073709551615, 18446744073709551615, 1);
20 // 2. cmp minInt, {minInt + 1, maxInt/2, maxInt-1, maxInt}
21 try test__ucmpdi2(0, 1, 0);
22 try test__ucmpdi2(0, 9223372036854775807, 0);
23 try test__ucmpdi2(0, 18446744073709551614, 0);
24 try test__ucmpdi2(0, 18446744073709551615, 0);
25 // 3. cmp minInt+1, {minInt, maxInt/2, maxInt-1, maxInt}
26 try test__ucmpdi2(1, 0, 2);
27 try test__ucmpdi2(1, 9223372036854775807, 0);
28 try test__ucmpdi2(1, 18446744073709551614, 0);
29 try test__ucmpdi2(1, 18446744073709551615, 0);
30 // 4. cmp minInt/2, {}
31 // 5. cmp -1, {}
32 // 6. cmp 0, {}
33 // 7. cmp 1, {}
34 // 8. cmp maxInt/2, {minInt, minInt+1, maxInt-1, maxInt}
35 try test__ucmpdi2(9223372036854775807, 0, 2);
36 try test__ucmpdi2(9223372036854775807, 1, 2);
37 try test__ucmpdi2(9223372036854775807, 18446744073709551614, 0);
38 try test__ucmpdi2(9223372036854775807, 18446744073709551615, 0);
39 // 9. cmp maxInt-1, {minInt, minInt + 1, maxInt/2, maxInt}
40 try test__ucmpdi2(18446744073709551614, 0, 2);
41 try test__ucmpdi2(18446744073709551614, 1, 2);
42 try test__ucmpdi2(18446744073709551614, 9223372036854775807, 2);
43 try test__ucmpdi2(18446744073709551614, 18446744073709551615, 0);
44 // 10.cmp maxInt, {minInt, 1, maxInt/2, maxInt-1}
45 try test__ucmpdi2(18446744073709551615, 0, 2);
46 try test__ucmpdi2(18446744073709551615, 1, 2);
47 try test__ucmpdi2(18446744073709551615, 9223372036854775807, 2);
48 try test__ucmpdi2(18446744073709551615, 18446744073709551614, 2);
49}
lib/std/special/compiler_rt/ucmpsi2_test.zig created+49
...@@ -0,0 +1,49 @@
1const cmp = @import("cmp.zig");
2const testing = @import("std").testing;
3
4fn test__ucmpsi2(a: u32, b: u32, expected: i32) !void {
5 var result = cmp.__ucmpsi2(a, b);
6 try testing.expectEqual(expected, result);
7}
8
9test "ucmpsi2" {
10 // minInt == 0
11 // maxInt == 4294967295
12 // minInt/2 == 0
13 // maxInt/2 == 2147483647
14 // 1. equality 0, 1 maxInt/2, maxInt-1, maxInt
15 try test__ucmpsi2(0, 0, 1);
16 try test__ucmpsi2(1, 1, 1);
17 try test__ucmpsi2(2147483647, 2147483647, 1);
18 try test__ucmpsi2(4294967294, 4294967294, 1);
19 try test__ucmpsi2(4294967295, 4294967295, 1);
20 // 2. cmp minInt, {0, 1, maxInt/2, maxInt-1, maxInt}
21 try test__ucmpsi2(0, 1, 0);
22 try test__ucmpsi2(0, 2147483647, 0);
23 try test__ucmpsi2(0, 4294967294, 0);
24 try test__ucmpsi2(0, 4294967295, 0);
25 // 3. cmp minInt+1, {minInt, 0, maxInt/2, maxInt-1, maxInt}
26 try test__ucmpsi2(1, 0, 2);
27 try test__ucmpsi2(1, 2147483647, 0);
28 try test__ucmpsi2(1, 4294967294, 0);
29 try test__ucmpsi2(1, 4294967295, 0);
30 // 4. cmp minInt/2==minInt, {}
31 // 5. cmp -1 {}
32 // 6. cmp 0==minInt,{}
33 // 7. cmp 1==minInt+1, {}
34 // 8. cmp maxInt/2, {0, maxInt-1, maxInt}
35 try test__ucmpsi2(2147483647, 0, 2);
36 try test__ucmpsi2(2147483647, 1, 2);
37 try test__ucmpsi2(2147483647, 4294967294, 0);
38 try test__ucmpsi2(2147483647, 4294967295, 0);
39 // 9. cmp maxInt-1, {0,1,2, maxInt/2, maxInt}
40 try test__ucmpsi2(4294967294, 0, 2);
41 try test__ucmpsi2(4294967294, 1, 2);
42 try test__ucmpsi2(4294967294, 2147483647, 2);
43 try test__ucmpsi2(4294967294, 4294967295, 0);
44 // 10.cmp maxInt, {0,1,2, maxInt/2, maxInt-1}
45 try test__ucmpsi2(4294967295, 0, 2);
46 try test__ucmpsi2(4294967295, 1, 2);
47 try test__ucmpsi2(4294967295, 2147483647, 2);
48 try test__ucmpsi2(4294967295, 4294967294, 2);
49}
lib/std/special/compiler_rt/ucmpti2_test.zig created+49
...@@ -0,0 +1,49 @@
1const cmp = @import("cmp.zig");
2const testing = @import("std").testing;
3
4fn test__ucmpti2(a: u128, b: u128, expected: i32) !void {
5 var result = cmp.__ucmpti2(a, b);
6 try testing.expectEqual(expected, result);
7}
8
9test "ucmpti2" {
10 // minInt == 0
11 // maxInt == 340282366920938463463374607431768211455
12 // minInt/2 == 0
13 // maxInt/2 == 170141183460469231731687303715884105727
14 // 1. equality minInt, minInt+1, maxInt/2, maxInt-1, maxInt
15 try test__ucmpti2(0, 0, 1);
16 try test__ucmpti2(1, 1, 1);
17 try test__ucmpti2(170141183460469231731687303715884105727, 170141183460469231731687303715884105727, 1);
18 try test__ucmpti2(340282366920938463463374607431768211454, 340282366920938463463374607431768211454, 1);
19 try test__ucmpti2(340282366920938463463374607431768211455, 340282366920938463463374607431768211455, 1);
20 // 2. cmp minInt, {minInt + 1, maxInt/2, maxInt-1, maxInt}
21 try test__ucmpti2(0, 1, 0);
22 try test__ucmpti2(0, 170141183460469231731687303715884105727, 0);
23 try test__ucmpti2(0, 340282366920938463463374607431768211454, 0);
24 try test__ucmpti2(0, 340282366920938463463374607431768211455, 0);
25 // 3. cmp minInt+1, {minInt, maxInt/2, maxInt-1, maxInt}
26 try test__ucmpti2(1, 0, 2);
27 try test__ucmpti2(1, 170141183460469231731687303715884105727, 0);
28 try test__ucmpti2(1, 340282366920938463463374607431768211454, 0);
29 try test__ucmpti2(1, 340282366920938463463374607431768211455, 0);
30 // 4. cmp minInt/2, {}
31 // 5. cmp -1, {}
32 // 6. cmp 0, {}
33 // 7. cmp 1, {}
34 // 8. cmp maxInt/2, {}
35 try test__ucmpti2(170141183460469231731687303715884105727, 0, 2);
36 try test__ucmpti2(170141183460469231731687303715884105727, 1, 2);
37 try test__ucmpti2(170141183460469231731687303715884105727, 340282366920938463463374607431768211454, 0);
38 try test__ucmpti2(170141183460469231731687303715884105727, 340282366920938463463374607431768211455, 0);
39 // 9. cmp maxInt-1, {minInt, minInt + 1, maxInt/2, maxInt}
40 try test__ucmpti2(340282366920938463463374607431768211454, 0, 2);
41 try test__ucmpti2(340282366920938463463374607431768211454, 1, 2);
42 try test__ucmpti2(340282366920938463463374607431768211454, 170141183460469231731687303715884105727, 2);
43 try test__ucmpti2(340282366920938463463374607431768211454, 340282366920938463463374607431768211455, 0);
44 // 10.cmp maxInt, {minInt, minInt + 1, minInt/2, -2,-1,0,1,2, maxInt/2, maxInt-1, }
45 try test__ucmpti2(340282366920938463463374607431768211455, 0, 2);
46 try test__ucmpti2(340282366920938463463374607431768211455, 1, 2);
47 try test__ucmpti2(340282366920938463463374607431768211455, 170141183460469231731687303715884105727, 2);
48 try test__ucmpti2(340282366920938463463374607431768211455, 340282366920938463463374607431768211454, 2);
49}