1const std = @import("std");
2const builtin = @import("builtin");
3const compiler_rt = @import("../compiler_rt.zig");
4const symbol = compiler_rt.symbol;
5
6comptime {
7 symbol(&__cmpsi2, "__cmpsi2");
8 symbol(&__cmpdi2, "__cmpdi2");
9 symbol(&__cmpti2, "__cmpti2");
10 symbol(&__ucmpsi2, "__ucmpsi2");
11 symbol(&__ucmpdi2, "__ucmpdi2");
12 symbol(&__ucmpti2, "__ucmpti2");
13}
14
15// cmp - signed compare
16// - cmpXi2_generic for unoptimized little and big endian
17
18// ucmp - unsigned compare
19// - ucmpXi2_generic for unoptimized little and big endian
20
21// a < b => 0
22// a == b => 1
23// a > b => 2
24
25inline fn XcmpXi2(comptime T: type, a: T, b: T) i32 {
26 var cmp1: i32 = 0;
27 var cmp2: i32 = 0;
28 if (a > b)
29 cmp1 = 1;
30 if (a < b)
31 cmp2 = 1;
32 return cmp1 - cmp2 + 1;
33}
34
35pub fn __cmpsi2(a: i32, b: i32) callconv(.c) i32 {
36 return XcmpXi2(i32, a, b);
37}
38
39pub fn __cmpdi2(a: i64, b: i64) callconv(.c) i32 {
40 return XcmpXi2(i64, a, b);
41}
42
43pub fn __cmpti2(a: i128, b: i128) callconv(.c) i32 {
44 return XcmpXi2(i128, a, b);
45}
46
47pub fn __ucmpsi2(a: u32, b: u32) callconv(.c) i32 {
48 return XcmpXi2(u32, a, b);
49}
50
51pub fn __ucmpdi2(a: u64, b: u64) callconv(.c) i32 {
52 return XcmpXi2(u64, a, b);
53}
54
55pub fn __ucmpti2(a: u128, b: u128) callconv(.c) i32 {
56 return XcmpXi2(u128, a, b);
57}
58
59test {
60 _ = @import("cmpsi2_test.zig");
61 _ = @import("cmpdi2_test.zig");
62 _ = @import("cmpti2_test.zig");
63
64 _ = @import("ucmpsi2_test.zig");
65 _ = @import("ucmpdi2_test.zig");
66 _ = @import("ucmpti2_test.zig");
67}