1 files changed, 11 insertions, 0 deletions
diff --git a/src/test/ui/intrinsics/unchecked_math_unsafe.rs b/src/test/ui/intrinsics/unchecked_math_unsafe.rs
new file mode 100644
index 000000000..98d3a11ad
--- /dev/null
+++ b/src/test/ui/intrinsics/unchecked_math_unsafe.rs
@@ -0,0 +1,11 @@
+// revisions: mir thir
+// [thir]compile-flags: -Z thir-unsafeck
+
+#![feature(core_intrinsics)]
+
+fn main() {
+    let (x, y) = (1u32, 2u32);
+    let add = std::intrinsics::unchecked_add(x, y); //~ ERROR call to unsafe function
+    let sub = std::intrinsics::unchecked_sub(x, y); //~ ERROR call to unsafe function
+    let mul = std::intrinsics::unchecked_mul(x, y); //~ ERROR call to unsafe function
+}