authorgravatar for thatlemon@gmail.comLemonBoy <thatlemon@gmail.com> 2019-05-10 12:45:01+02:00
committergravatar for thatlemon@gmail.comLemonBoy <thatlemon@gmail.com> 2019-05-10 13:26:33+02:00
log7db2aa1c252919caf6120d890dde4ccb052dce93
tree40c8e81b72bb897f8539104a4a77e24653111f09
parent1c0223899cfe6c1c73f186330f6eff2cc9e78579

compiler-rt: Add __ashlti3

4 files changed, 89 insertions(+), 0 deletions(-)

CMakeLists.txt+1
...@@ -695,6 +695,7 @@ set(ZIG_STD_FILES...@@ -695,6 +695,7 @@ 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"
698 "special/compiler_rt/negXf2.zig"699 "special/compiler_rt/negXf2.zig"
699 "special/compiler_rt/popcountdi2.zig"700 "special/compiler_rt/popcountdi2.zig"
700 "special/compiler_rt/truncXfYf2.zig"701 "special/compiler_rt/truncXfYf2.zig"
std/special/compiler_rt.zig+1
...@@ -62,6 +62,7 @@ comptime {...@@ -62,6 +62,7 @@ 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);
65 @export("__floatsidf", @import("compiler_rt/floatsiXf.zig").__floatsidf, linkage);66 @export("__floatsidf", @import("compiler_rt/floatsiXf.zig").__floatsidf, linkage);
66 @export("__floatsisf", @import("compiler_rt/floatsiXf.zig").__floatsisf, linkage);67 @export("__floatsisf", @import("compiler_rt/floatsiXf.zig").__floatsisf, linkage);
67 @export("__floatdidf", @import("compiler_rt/floatdidf.zig").__floatdidf, linkage);68 @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}