mirror of
https://codeberg.org/ziglang/zig.git
synced 2026-03-08 10:05:10 +01:00
74608293af
use the "symbol" helper function in all exports move all declarations from common.zig to compiler_rt.zig flatten the tree structure somewhat (move contents of tiny files into parent files) No functional changes.
67 lines
1.5 KiB
Zig
67 lines
1.5 KiB
Zig
const std = @import("std");
|
|
const builtin = @import("builtin");
|
|
const compiler_rt = @import("../compiler_rt.zig");
|
|
const symbol = compiler_rt.symbol;
|
|
|
|
comptime {
|
|
symbol(&__cmpsi2, "__cmpsi2");
|
|
symbol(&__cmpdi2, "__cmpdi2");
|
|
symbol(&__cmpti2, "__cmpti2");
|
|
symbol(&__ucmpsi2, "__ucmpsi2");
|
|
symbol(&__ucmpdi2, "__ucmpdi2");
|
|
symbol(&__ucmpti2, "__ucmpti2");
|
|
}
|
|
|
|
// cmp - signed compare
|
|
// - cmpXi2_generic for unoptimized little and big endian
|
|
|
|
// ucmp - unsigned compare
|
|
// - ucmpXi2_generic for unoptimized little and big endian
|
|
|
|
// a < b => 0
|
|
// a == b => 1
|
|
// a > b => 2
|
|
|
|
inline fn XcmpXi2(comptime T: type, a: T, b: T) i32 {
|
|
var cmp1: i32 = 0;
|
|
var cmp2: i32 = 0;
|
|
if (a > b)
|
|
cmp1 = 1;
|
|
if (a < b)
|
|
cmp2 = 1;
|
|
return cmp1 - cmp2 + 1;
|
|
}
|
|
|
|
pub fn __cmpsi2(a: i32, b: i32) callconv(.c) i32 {
|
|
return XcmpXi2(i32, a, b);
|
|
}
|
|
|
|
pub fn __cmpdi2(a: i64, b: i64) callconv(.c) i32 {
|
|
return XcmpXi2(i64, a, b);
|
|
}
|
|
|
|
pub fn __cmpti2(a: i128, b: i128) callconv(.c) i32 {
|
|
return XcmpXi2(i128, a, b);
|
|
}
|
|
|
|
pub fn __ucmpsi2(a: u32, b: u32) callconv(.c) i32 {
|
|
return XcmpXi2(u32, a, b);
|
|
}
|
|
|
|
pub fn __ucmpdi2(a: u64, b: u64) callconv(.c) i32 {
|
|
return XcmpXi2(u64, a, b);
|
|
}
|
|
|
|
pub fn __ucmpti2(a: u128, b: u128) callconv(.c) i32 {
|
|
return XcmpXi2(u128, a, b);
|
|
}
|
|
|
|
test {
|
|
_ = @import("cmpsi2_test.zig");
|
|
_ = @import("cmpdi2_test.zig");
|
|
_ = @import("cmpti2_test.zig");
|
|
|
|
_ = @import("ucmpsi2_test.zig");
|
|
_ = @import("ucmpdi2_test.zig");
|
|
_ = @import("ucmpti2_test.zig");
|
|
}
|