1 files changed, 71 insertions, 0 deletions
diff --git a/tests/mir-opt/building/custom/debuginfo.rs b/tests/mir-opt/building/custom/debuginfo.rs
new file mode 100644
index 000000000..bfdc3d3ea
--- /dev/null
+++ b/tests/mir-opt/building/custom/debuginfo.rs
@@ -0,0 +1,71 @@
+#![feature(custom_mir, core_intrinsics)]
+
+extern crate core;
+use core::intrinsics::mir::*;
+
+// EMIT_MIR debuginfo.pointee.built.after.mir
+#[custom_mir(dialect = "built")]
+fn pointee(opt: &mut Option<i32>) {
+    mir!(
+        debug foo => Field::<i32>(Variant(*opt, 1), 0);
+        {
+            Return()
+        }
+    )
+}
+
+// EMIT_MIR debuginfo.numbered.built.after.mir
+#[custom_mir(dialect = "analysis", phase = "post-cleanup")]
+fn numbered(i: (u32, i32)) {
+    mir!(
+        debug first => i.0;
+        debug second => i.0;
+        {
+            Return()
+        }
+    )
+}
+
+struct S { x: f32 }
+
+// EMIT_MIR debuginfo.structured.built.after.mir
+#[custom_mir(dialect = "analysis", phase = "post-cleanup")]
+fn structured(i: S) {
+    mir!(
+        debug x => i.x;
+        {
+            Return()
+        }
+    )
+}
+
+// EMIT_MIR debuginfo.variant.built.after.mir
+#[custom_mir(dialect = "built")]
+fn variant(opt: Option<i32>) {
+    mir!(
+        debug inner => Field::<i32>(Variant(opt, 1), 0);
+        {
+            Return()
+        }
+    )
+}
+
+// EMIT_MIR debuginfo.variant_deref.built.after.mir
+#[custom_mir(dialect = "built")]
+fn variant_deref(opt: Option<&i32>) {
+    mir!(
+        debug pointer => Field::<&i32>(Variant(opt, 1), 0);
+        debug deref => *Field::<&i32>(Variant(opt, 1), 0);
+        {
+            Return()
+        }
+    )
+}
+
+fn main() {
+    numbered((5, 6));
+    structured(S { x: 5. });
+    variant(Some(5));
+    variant_deref(Some(&5));
+    pointee(&mut Some(5));
+}