Merge pull request #72 from rust-lang/feature/proptest

proptest
This replaces most tests with proptest, and makes it easier to define tests generically over lane count.  This should provide much broader API coverage and give us more confidence in our implementation.

Author: workingjubilee

.travis.yml

@@ -1,3 +1,7 @@
+branches:
+  only:
+    - master
+
 language: rust
 rust:
   - nightly

Cargo.toml

@@ -2,4 +2,5 @@
 
 members = [
     "crates/core_simd",
+    "crates/test_helpers",
 ]

crates/core_simd/Cargo.toml

@@ -14,3 +14,11 @@ version = "0.2"
 
 [dev-dependencies.wasm-bindgen-test]
 version = "0.3"
+
+[dev-dependencies.proptest]
+version = "0.10"
+default-features = false
+features = ["alloc"]
+
+[dev-dependencies.test_helpers]
+path = "../test_helpers"

crates/core_simd/src/macros.rs

@@ -141,6 +141,12 @@ macro_rules! impl_vector {
             }
         }
 
+        impl <const LANES: usize> From<$name<LANES>> for [$type; LANES] where $name<LANES>: crate::LanesAtMost64 {
+            fn from(vector: $name<LANES>) -> Self {
+                vector.to_array()
+            }
+        }
+
         // splat
         impl<const LANES: usize> From<$type> for $name<LANES> where Self: crate::LanesAtMost64 {
             #[inline]

crates/core_simd/tests/f32_ops.rs

@@ -0,0 +1,3 @@
+#[macro_use]
+mod ops_macros;
+impl_float_tests! { SimdF32, f32, i32 }

crates/core_simd/tests/f64_ops.rs

@@ -0,0 +1,3 @@
+#[macro_use]
+mod ops_macros;
+impl_float_tests! { SimdF64, f64, i64 }

crates/core_simd/tests/helpers/biteq.rs

@@ -0,0 +1,3 @@
+#[macro_use]
+mod ops_macros;
+impl_signed_tests! { SimdI128, i128 }