1 files changed, 28 insertions, 0 deletions
diff --git a/tests/mir-opt/intrinsic_asserts.rs b/tests/mir-opt/intrinsic_asserts.rs
new file mode 100644
index 000000000..8fb99cdf6
--- /dev/null
+++ b/tests/mir-opt/intrinsic_asserts.rs
@@ -0,0 +1,28 @@
+#![crate_type = "lib"]
+#![feature(core_intrinsics)]
+
+// All these assertions pass, so all the intrinsic calls should be deleted.
+// EMIT_MIR intrinsic_asserts.removable.InstCombine.diff
+pub fn removable() {
+    core::intrinsics::assert_inhabited::<()>();
+    core::intrinsics::assert_zero_valid::<u8>();
+    core::intrinsics::assert_mem_uninitialized_valid::<u8>();
+}
+
+enum Never {}
+
+// These assertions all diverge, so their target blocks should become None.
+// EMIT_MIR intrinsic_asserts.panics.InstCombine.diff
+pub fn panics() {
+    core::intrinsics::assert_inhabited::<Never>();
+    core::intrinsics::assert_zero_valid::<&u8>();
+    core::intrinsics::assert_mem_uninitialized_valid::<&u8>();
+}
+
+// Whether or not these asserts pass isn't known, so they shouldn't be modified.
+// EMIT_MIR intrinsic_asserts.generic.InstCombine.diff
+pub fn generic<T>() {
+    core::intrinsics::assert_inhabited::<T>();
+    core::intrinsics::assert_zero_valid::<T>();
+    core::intrinsics::assert_mem_uninitialized_valid::<T>();
+}