authorgravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2019-05-10 08:44:27-04:00
committergravatar for noreply@github.comGitHub <noreply@github.com> 2019-05-10 08:44:27-04:00
logbcf4d20289bfb062aa7e4fadd900c9a247feb3e8
tree4e08fd9d34275e76d06ee2e2399406f5b460b0bf
parent1606dae7286daac67b5eb2d91108f558ab7b2b00
parent7fb55ce2bbbe51f4becaef257b72c95e7d078c19
signaturebadge-question-mark Signed by PGP key 4AEE18F83AFDEB23

Merge pull request #2465 from LemonBoy/builtins-for-wasm

A few builtins for wasm

8 files changed, 281 insertions(+), 0 deletions(-)

CMakeLists.txt+3
...@@ -695,6 +695,9 @@ set(ZIG_STD_FILES...@@ -695,6 +695,9 @@ set(ZIG_STD_FILES
695 "special/compiler_rt/muloti4.zig"695 "special/compiler_rt/muloti4.zig"
696 "special/compiler_rt/mulodi4.zig"696 "special/compiler_rt/mulodi4.zig"
697 "special/compiler_rt/multi3.zig"697 "special/compiler_rt/multi3.zig"
698 "special/compiler_rt/ashlti3.zig"
699 "special/compiler_rt/ashrti3.zig"
700 "special/compiler_rt/lshrti3.zig"
698 "special/compiler_rt/negXf2.zig"701 "special/compiler_rt/negXf2.zig"
699 "special/compiler_rt/popcountdi2.zig"702 "special/compiler_rt/popcountdi2.zig"
700 "special/compiler_rt/truncXfYf2.zig"703 "special/compiler_rt/truncXfYf2.zig"
std/special/compiler_rt.zig+4
...@@ -62,6 +62,10 @@ comptime {...@@ -62,6 +62,10 @@ comptime {
62 @export("__divsf3", @import("compiler_rt/divsf3.zig").__divsf3, linkage);62 @export("__divsf3", @import("compiler_rt/divsf3.zig").__divsf3, linkage);
63 @export("__divdf3", @import("compiler_rt/divdf3.zig").__divdf3, linkage);63 @export("__divdf3", @import("compiler_rt/divdf3.zig").__divdf3, linkage);
6464
65 @export("__ashlti3", @import("compiler_rt/ashlti3.zig").__ashlti3, linkage);
66 @export("__lshrti3", @import("compiler_rt/lshrti3.zig").__lshrti3, linkage);
67 @export("__ashrti3", @import("compiler_rt/ashrti3.zig").__ashrti3, linkage);
68
65 @export("__floatsidf", @import("compiler_rt/floatsiXf.zig").__floatsidf, linkage);69 @export("__floatsidf", @import("compiler_rt/floatsiXf.zig").__floatsidf, linkage);
66 @export("__floatsisf", @import("compiler_rt/floatsiXf.zig").__floatsisf, linkage);70 @export("__floatsisf", @import("compiler_rt/floatsiXf.zig").__floatsisf, linkage);
67 @export("__floatdidf", @import("compiler_rt/floatdidf.zig").__floatdidf, linkage);71 @export("__floatdidf", @import("compiler_rt/floatdidf.zig").__floatdidf, linkage);
std/special/compiler_rt/ashlti3.zig created+41
...@@ -0,0 +1,41 @@
1const builtin = @import("builtin");
2const compiler_rt = @import("../compiler_rt.zig");
3
4pub extern fn __ashlti3(a: i128, b: i32) i128 {
5 var input = twords{ .all = a };
6 var result: twords = undefined;
7
8 if (b > 63) {
9 // 64 <= b < 128
10 result.s.low = 0;
11 result.s.high = input.s.low << @intCast(u6, b - 64);
12 } else {
13 // 0 <= b < 64
14 if (b == 0) return a;
15 result.s.low = input.s.low << @intCast(u6, b);
16 result.s.high = input.s.low >> @intCast(u6, 64 - b);
17 result.s.high |= input.s.high << @intCast(u6, b);
18 }
19
20 return result.all;
21}
22
23const twords = extern union {
24 all: i128,
25 s: S,
26
27 const S = if (builtin.endian == builtin.Endian.Little)
28 struct {
29 low: u64,
30 high: u64,
31 }
32 else
33 struct {
34 high: u64,
35 low: u64,
36 };
37};
38
39test "import ashlti3" {
40 _ = @import("ashlti3_test.zig");
41}
std/special/compiler_rt/ashlti3_test.zig created+46
...@@ -0,0 +1,46 @@
1const __ashlti3 = @import("ashlti3.zig").__ashlti3;
2const testing = @import("std").testing;
3
4fn test__ashlti3(a: i128, b: i32, expected: i128) void {
5 const x = __ashlti3(a, b);
6 testing.expect(x == expected);
7}
8
9test "ashlti3" {
10 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 0, @bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)));
11 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 1, @bitCast(i128, @intCast(u128, 0xFDB97530ECA8642BFDB97530ECA8642A)));
12 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 2, @bitCast(i128, @intCast(u128, 0xFB72EA61D950C857FB72EA61D950C854)));
13 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 3, @bitCast(i128, @intCast(u128, 0xF6E5D4C3B2A190AFF6E5D4C3B2A190A8)));
14 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 4, @bitCast(i128, @intCast(u128, 0xEDCBA9876543215FEDCBA98765432150)));
15 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 28, @bitCast(i128, @intCast(u128, 0x876543215FEDCBA98765432150000000)));
16 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 29, @bitCast(i128, @intCast(u128, 0x0ECA8642BFDB97530ECA8642A0000000)));
17 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 30, @bitCast(i128, @intCast(u128, 0x1D950C857FB72EA61D950C8540000000)));
18 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 31, @bitCast(i128, @intCast(u128, 0x3B2A190AFF6E5D4C3B2A190A80000000)));
19 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 32, @bitCast(i128, @intCast(u128, 0x76543215FEDCBA987654321500000000)));
20 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 33, @bitCast(i128, @intCast(u128, 0xECA8642BFDB97530ECA8642A00000000)));
21 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 34, @bitCast(i128, @intCast(u128, 0xD950C857FB72EA61D950C85400000000)));
22 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 35, @bitCast(i128, @intCast(u128, 0xB2A190AFF6E5D4C3B2A190A800000000)));
23 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 36, @bitCast(i128, @intCast(u128, 0x6543215FEDCBA9876543215000000000)));
24 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 60, @bitCast(i128, @intCast(u128, 0x5FEDCBA9876543215000000000000000)));
25 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 61, @bitCast(i128, @intCast(u128, 0xBFDB97530ECA8642A000000000000000)));
26 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 62, @bitCast(i128, @intCast(u128, 0x7FB72EA61D950C854000000000000000)));
27 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 63, @bitCast(i128, @intCast(u128, 0xFF6E5D4C3B2A190A8000000000000000)));
28 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 64, @bitCast(i128, @intCast(u128, 0xFEDCBA98765432150000000000000000)));
29 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 65, @bitCast(i128, @intCast(u128, 0xFDB97530ECA8642A0000000000000000)));
30 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 66, @bitCast(i128, @intCast(u128, 0xFB72EA61D950C8540000000000000000)));
31 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 67, @bitCast(i128, @intCast(u128, 0xF6E5D4C3B2A190A80000000000000000)));
32 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 68, @bitCast(i128, @intCast(u128, 0xEDCBA987654321500000000000000000)));
33 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 92, @bitCast(i128, @intCast(u128, 0x87654321500000000000000000000000)));
34 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 93, @bitCast(i128, @intCast(u128, 0x0ECA8642A00000000000000000000000)));
35 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 94, @bitCast(i128, @intCast(u128, 0x1D950C85400000000000000000000000)));
36 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 95, @bitCast(i128, @intCast(u128, 0x3B2A190A800000000000000000000000)));
37 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 96, @bitCast(i128, @intCast(u128, 0x76543215000000000000000000000000)));
38 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 97, @bitCast(i128, @intCast(u128, 0xECA8642A000000000000000000000000)));
39 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 98, @bitCast(i128, @intCast(u128, 0xD950C854000000000000000000000000)));
40 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 99, @bitCast(i128, @intCast(u128, 0xB2A190A8000000000000000000000000)));
41 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 100, @bitCast(i128, @intCast(u128, 0x65432150000000000000000000000000)));
42 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 124, @bitCast(i128, @intCast(u128, 0x50000000000000000000000000000000)));
43 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 125, @bitCast(i128, @intCast(u128, 0xA0000000000000000000000000000000)));
44 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 126, @bitCast(i128, @intCast(u128, 0x40000000000000000000000000000000)));
45 test__ashlti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 127, @bitCast(i128, @intCast(u128, 0x80000000000000000000000000000000)));
46}
std/special/compiler_rt/ashrti3.zig created+42
...@@ -0,0 +1,42 @@
1const builtin = @import("builtin");
2const compiler_rt = @import("../compiler_rt.zig");
3
4pub extern fn __ashrti3(a: i128, b: i32) i128 {
5 var input = twords{ .all = a };
6 var result: twords = undefined;
7
8 if (b > 63) {
9 // 64 <= b < 128
10 result.s.low = input.s.high >> @intCast(u6, b - 64);
11 result.s.high = input.s.high >> 63;
12 } else {
13 // 0 <= b < 64
14 if (b == 0) return a;
15 result.s.low = input.s.high << @intCast(u6, 64 - b);
16 // Avoid sign-extension here
17 result.s.low |= @bitCast(i64, @bitCast(u64, input.s.low) >> @intCast(u6, b));
18 result.s.high = input.s.high >> @intCast(u6, b);
19 }
20
21 return result.all;
22}
23
24const twords = extern union {
25 all: i128,
26 s: S,
27
28 const S = if (builtin.endian == builtin.Endian.Little)
29 struct {
30 low: i64,
31 high: i64,
32 }
33 else
34 struct {
35 high: i64,
36 low: i64,
37 };
38};
39
40test "import ashrti3" {
41 _ = @import("ashrti3_test.zig");
42}
std/special/compiler_rt/ashrti3_test.zig created+58
...@@ -0,0 +1,58 @@
1const __ashrti3 = @import("ashrti3.zig").__ashrti3;
2const testing = @import("std").testing;
3
4fn test__ashrti3(a: i128, b: i32, expected: i128) void {
5 const x = __ashrti3(a, b);
6 // @import("std").debug.warn("got 0x{x}\nexp 0x{x}\n", @truncate(u64,
7// @bitCast(u128, x) >> 64), @truncate(u64, @bitCast(u128, expected)) >> 64);
8 testing.expect(x == expected);
9}
10
11test "ashrti3" {
12 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 0, @bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)));
13 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 1, @bitCast(i128, @intCast(u128, 0xFF6E5D4C3B2A190AFF6E5D4C3B2A190A)));
14 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 2, @bitCast(i128, @intCast(u128, 0xFFB72EA61D950C857FB72EA61D950C85)));
15 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 3, @bitCast(i128, @intCast(u128, 0xFFDB97530ECA8642BFDB97530ECA8642)));
16 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 4, @bitCast(i128, @intCast(u128, 0xFFEDCBA9876543215FEDCBA987654321)));
17
18 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 28, @bitCast(i128, @intCast(u128, 0xFFFFFFFFEDCBA9876543215FEDCBA987)));
19 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 29, @bitCast(i128, @intCast(u128, 0xFFFFFFFFF6E5D4C3B2A190AFF6E5D4C3)));
20 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 30, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFB72EA61D950C857FB72EA61)));
21 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 31, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFDB97530ECA8642BFDB97530)));
22
23 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 32, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFEDCBA9876543215FEDCBA98)));
24
25 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 33, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFF6E5D4C3B2A190AFF6E5D4C)));
26 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 34, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFB72EA61D950C857FB72EA6)));
27 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 35, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFDB97530ECA8642BFDB9753)));
28 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 36, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFEDCBA9876543215FEDCBA9)));
29
30 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 60, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFEDCBA9876543215F)));
31 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 61, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFF6E5D4C3B2A190AF)));
32 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 62, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFB72EA61D950C857)));
33 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 63, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFDB97530ECA8642B)));
34
35 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 64, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFEDCBA9876543215)));
36
37 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 65, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFF6E5D4C3B2A190A)));
38 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 66, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFB72EA61D950C85)));
39 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 67, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFDB97530ECA8642)));
40 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 68, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFEDCBA987654321)));
41
42 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 92, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFEDCBA987)));
43 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 93, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFF6E5D4C3)));
44 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 94, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFFB72EA61)));
45 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 95, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFFDB97530)));
46
47 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 96, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFFEDCBA98)));
48
49 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 97, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFFF6E5D4C)));
50 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 98, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFB72EA6)));
51 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 99, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFDB9753)));
52 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 100, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFEDCBA9)));
53
54 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 124, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)));
55 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 125, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)));
56 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 126, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)));
57 test__ashrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 127, @bitCast(i128, @intCast(u128, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)));
58}
std/special/compiler_rt/lshrti3.zig created+41
...@@ -0,0 +1,41 @@
1const builtin = @import("builtin");
2const compiler_rt = @import("../compiler_rt.zig");
3
4pub extern fn __lshrti3(a: i128, b: i32) i128 {
5 var input = twords{ .all = a };
6 var result: twords = undefined;
7
8 if (b > 63) {
9 // 64 <= b < 128
10 result.s.low = input.s.high >> @intCast(u6, b - 64);
11 result.s.high = 0;
12 } else {
13 // 0 <= b < 64
14 if (b == 0) return a;
15 result.s.low = input.s.high << @intCast(u6, 64 - b);
16 result.s.low |= input.s.low >> @intCast(u6, b);
17 result.s.high = input.s.high >> @intCast(u6, b);
18 }
19
20 return result.all;
21}
22
23const twords = extern union {
24 all: i128,
25 s: S,
26
27 const S = if (builtin.endian == builtin.Endian.Little)
28 struct {
29 low: u64,
30 high: u64,
31 }
32 else
33 struct {
34 high: u64,
35 low: u64,
36 };
37};
38
39test "import lshrti3" {
40 _ = @import("lshrti3_test.zig");
41}
std/special/compiler_rt/lshrti3_test.zig created+46
...@@ -0,0 +1,46 @@
1const __lshrti3 = @import("lshrti3.zig").__lshrti3;
2const testing = @import("std").testing;
3
4fn test__lshrti3(a: i128, b: i32, expected: i128) void {
5 const x = __lshrti3(a, b);
6 testing.expect(x == expected);
7}
8
9test "lshrti3" {
10 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 0, @bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)));
11 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 1, @bitCast(i128, @intCast(u128, 0x7F6E5D4C3B2A190AFF6E5D4C3B2A190A)));
12 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 2, @bitCast(i128, @intCast(u128, 0x3FB72EA61D950C857FB72EA61D950C85)));
13 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 3, @bitCast(i128, @intCast(u128, 0x1FDB97530ECA8642BFDB97530ECA8642)));
14 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 4, @bitCast(i128, @intCast(u128, 0x0FEDCBA9876543215FEDCBA987654321)));
15 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 28, @bitCast(i128, @intCast(u128, 0x0000000FEDCBA9876543215FEDCBA987)));
16 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 29, @bitCast(i128, @intCast(u128, 0x00000007F6E5D4C3B2A190AFF6E5D4C3)));
17 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 30, @bitCast(i128, @intCast(u128, 0x00000003FB72EA61D950C857FB72EA61)));
18 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 31, @bitCast(i128, @intCast(u128, 0x00000001FDB97530ECA8642BFDB97530)));
19 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 32, @bitCast(i128, @intCast(u128, 0x00000000FEDCBA9876543215FEDCBA98)));
20 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 33, @bitCast(i128, @intCast(u128, 0x000000007F6E5D4C3B2A190AFF6E5D4C)));
21 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 34, @bitCast(i128, @intCast(u128, 0x000000003FB72EA61D950C857FB72EA6)));
22 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 35, @bitCast(i128, @intCast(u128, 0x000000001FDB97530ECA8642BFDB9753)));
23 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 36, @bitCast(i128, @intCast(u128, 0x000000000FEDCBA9876543215FEDCBA9)));
24 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 60, @bitCast(i128, @intCast(u128, 0x000000000000000FEDCBA9876543215F)));
25 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 61, @bitCast(i128, @intCast(u128, 0x0000000000000007F6E5D4C3B2A190AF)));
26 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 62, @bitCast(i128, @intCast(u128, 0x0000000000000003FB72EA61D950C857)));
27 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 63, @bitCast(i128, @intCast(u128, 0x0000000000000001FDB97530ECA8642B)));
28 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 64, @bitCast(i128, @intCast(u128, 0x0000000000000000FEDCBA9876543215)));
29 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 65, @bitCast(i128, @intCast(u128, 0x00000000000000007F6E5D4C3B2A190A)));
30 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 66, @bitCast(i128, @intCast(u128, 0x00000000000000003FB72EA61D950C85)));
31 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 67, @bitCast(i128, @intCast(u128, 0x00000000000000001FDB97530ECA8642)));
32 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 68, @bitCast(i128, @intCast(u128, 0x00000000000000000FEDCBA987654321)));
33 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 92, @bitCast(i128, @intCast(u128, 0x00000000000000000000000FEDCBA987)));
34 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 93, @bitCast(i128, @intCast(u128, 0x000000000000000000000007F6E5D4C3)));
35 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 94, @bitCast(i128, @intCast(u128, 0x000000000000000000000003FB72EA61)));
36 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 95, @bitCast(i128, @intCast(u128, 0x000000000000000000000001FDB97530)));
37 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 96, @bitCast(i128, @intCast(u128, 0x000000000000000000000000FEDCBA98)));
38 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 97, @bitCast(i128, @intCast(u128, 0x0000000000000000000000007F6E5D4C)));
39 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 98, @bitCast(i128, @intCast(u128, 0x0000000000000000000000003FB72EA6)));
40 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 99, @bitCast(i128, @intCast(u128, 0x0000000000000000000000001FDB9753)));
41 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 100, @bitCast(i128, @intCast(u128, 0x0000000000000000000000000FEDCBA9)));
42 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 124, @bitCast(i128, @intCast(u128, 0x0000000000000000000000000000000F)));
43 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 125, @bitCast(i128, @intCast(u128, 0x00000000000000000000000000000007)));
44 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 126, @bitCast(i128, @intCast(u128, 0x00000000000000000000000000000003)));
45 test__lshrti3(@bitCast(i128, @intCast(u128, 0xFEDCBA9876543215FEDCBA9876543215)), 127, @bitCast(i128, @intCast(u128, 0x00000000000000000000000000000001)));
46}