1 files changed, 15 insertions, 0 deletions
diff --git a/lib/std/special/compiler_rt/umodti3.zig b/lib/std/special/compiler_rt/umodti3.zig
new file mode 100644
index 0000000000..7add0b2ffe
--- /dev/null
+++ b/lib/std/special/compiler_rt/umodti3.zig
@@ -0,0 +1,15 @@
+const udivmodti4 = @import("udivmodti4.zig");
+const builtin = @import("builtin");
+const compiler_rt = @import("../compiler_rt.zig");
+
+pub extern fn __umodti3(a: u128, b: u128) u128 {
+    @setRuntimeSafety(builtin.is_test);
+    var r: u128 = undefined;
+    _ = udivmodti4.__udivmodti4(a, b, &r);
+    return r;
+}
+
+const v128 = @Vector(2, u64);
+pub extern fn __umodti3_windows_x86_64(a: v128, b: v128) v128 {
+    return @bitCast(v128, @inlineCall(__umodti3, @bitCast(u128, a), @bitCast(u128, b)));
+}