Build bitcode with zig 🎉

compiler/builtins/bitcode/src/main.zig

@@ -0,0 +1,20 @@
+const std = @import("std");
+const math = std.math;
+// const testing = std.testing;
+
+
+export fn atan_(num: f64) f64 {
+    return math.atan(num);
+}
+
+export fn is_finite_(num: f64) bool {
+    return math.isFinite(num);
+}
+
+export fn pow_int_(base: i64, exp: i64) i64 {
+    return math.pow(i64, base, exp);
+}
+
+// test "basic add functionality" {
+    // testing.expect(add(3, 7) == 10);
+// }