add strange example that fails

library/stdarch/examples/wat.rs

@@ -0,0 +1,25 @@
+#![feature(target_feature)]
+
+extern crate stdsimd;
+
+use std::env;
+use stdsimd::simd;
+
+#[inline(never)]
+#[target_feature = "-sse2"]
+fn myop(
+    (x0, x1, x2, x3): (u64, u64, u64, u64),
+    (y0, y1, y2, y3): (u64, u64, u64, u64),
+) -> (u64, u64, u64, u64) {
+    let x = simd::u64x4::new(x0, x1, x2, x3);
+    let y = simd::u64x4::new(y0, y1, y2, y3);
+    let r = x * y;
+    (r.extract(0), r.extract(1), r.extract(2), r.extract(3))
+}
+
+fn main() {
+    let x = env::args().nth(1).unwrap().parse().unwrap();
+    let y = env::args().nth(1).unwrap().parse().unwrap();
+    let r = myop((x, x, x, x), (y, y, y, y));
+    println!("{:?}", r);
+}