1 files changed, 70 insertions, 0 deletions
diff --git a/tests/ui/consts/const-eval/simd/insert_extract.rs b/tests/ui/consts/const-eval/simd/insert_extract.rs
new file mode 100644
index 00000000000..3472c05d12f
--- /dev/null
+++ b/tests/ui/consts/const-eval/simd/insert_extract.rs
@@ -0,0 +1,70 @@
+// run-pass
+#![feature(repr_simd)]
+#![feature(platform_intrinsics)]
+#![feature(staged_api)]
+#![stable(feature = "foo", since = "1.3.37")]
+#![allow(non_camel_case_types)]
+
+#[repr(simd)] struct i8x1(i8);
+#[repr(simd)] struct u16x2(u16, u16);
+// Make some of them array types to ensure those also work.
+#[repr(simd)] struct i8x1_arr([i8; 1]);
+#[repr(simd)] struct f32x4([f32; 4]);
+
+extern "platform-intrinsic" {
+    #[rustc_const_stable(feature = "foo", since = "1.3.37")]
+    fn simd_insert<T, U>(x: T, idx: u32, val: U) -> T;
+    #[rustc_const_stable(feature = "foo", since = "1.3.37")]
+    fn simd_extract<T, U>(x: T, idx: u32) -> U;
+}
+
+fn main() {
+    {
+        const U: i8x1 = i8x1(13);
+        const V: i8x1 = unsafe { simd_insert(U, 0_u32, 42_i8) };
+        const X0: i8 = V.0;
+        const Y0: i8 = unsafe { simd_extract(V, 0) };
+        assert_eq!(X0, 42);
+        assert_eq!(Y0, 42);
+    }
+    {
+        const U: i8x1_arr = i8x1_arr([13]);
+        const V: i8x1_arr = unsafe { simd_insert(U, 0_u32, 42_i8) };
+        const X0: i8 = V.0[0];
+        const Y0: i8 = unsafe { simd_extract(V, 0) };
+        assert_eq!(X0, 42);
+        assert_eq!(Y0, 42);
+    }
+    {
+        const U: u16x2 = u16x2(13, 14);
+        const V: u16x2 = unsafe { simd_insert(U, 1_u32, 42_u16) };
+        const X0: u16 = V.0;
+        const X1: u16 = V.1;
+        const Y0: u16 = unsafe { simd_extract(V, 0) };
+        const Y1: u16 = unsafe { simd_extract(V, 1) };
+        assert_eq!(X0, 13);
+        assert_eq!(X1, 42);
+        assert_eq!(Y0, 13);
+        assert_eq!(Y1, 42);
+    }
+    {
+        const U: f32x4 = f32x4([13., 14., 15., 16.]);
+        const V: f32x4 = unsafe { simd_insert(U, 1_u32, 42_f32) };
+        const X0: f32 = V.0[0];
+        const X1: f32 = V.0[1];
+        const X2: f32 = V.0[2];
+        const X3: f32 = V.0[3];
+        const Y0: f32 = unsafe { simd_extract(V, 0) };
+        const Y1: f32 = unsafe { simd_extract(V, 1) };
+        const Y2: f32 = unsafe { simd_extract(V, 2) };
+        const Y3: f32 = unsafe { simd_extract(V, 3) };
+        assert_eq!(X0, 13.);
+        assert_eq!(X1, 42.);
+        assert_eq!(X2, 15.);
+        assert_eq!(X3, 16.);
+        assert_eq!(Y0, 13.);
+        assert_eq!(Y1, 42.);
+        assert_eq!(Y2, 15.);
+        assert_eq!(Y3, 16.);
+    }
+}