Force splatting in SIMD test

Author: workingjubilee

library/core/tests/simd.rs

@@ -7,7 +7,7 @@ fn testing() {
     let x = f32x4::from_array([1.0, 1.0, 1.0, 1.0]);
     let y = -x;
 
-    let h = x * 0.5;
+    let h = x * f32x4::splat(0.5);
 
     let r = y.abs();
     assert_eq!(x, r);