explicit type annotations in ppc tests

Author: gnzlbg

coresimd/powerpc/altivec.rs

@@ -522,15 +522,18 @@ mod tests {
     use stdsimd_test::simd_test;
 
     macro_rules! test_vec_perm {
-        {$name:ident, $shorttype:ident, $longtype:ident, [$($a:expr),+], [$($b:expr),+], [$($c:expr),+], [$($d:expr),+]} => {
+        {$name:ident,
+         $shorttype:ident, $longtype:ident,
+         [$($a:expr),+], [$($b:expr),+], [$($c:expr),+], [$($d:expr),+]} => {
             #[simd_test(enable = "altivec")]
             unsafe fn $name() {
                 let a: $longtype = ::mem::transmute($shorttype::new($($a),+));
-                let b = ::mem::transmute($shorttype::new($($b),+));
-                let c = ::mem::transmute(u8x16::new($($c),+));
+                let b: $longtype = ::mem::transmute($shorttype::new($($b),+));
+                let c: vector_unsigned_char = ::mem::transmute(u8x16::new($($c),+));
                 let d = $shorttype::new($($d),+);
 
-                assert_eq!(d, ::mem::transmute(vec_perm(a, b, c)));
+                let r: $shorttype = ::mem::transmute(vec_perm(a, b, c));
+                assert_eq!(d, r);
             }
         }
     }