Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/tests/mir-opt/uninhabited_enum_branching2.rs b/tests/mir-opt/uninhabited_enum_branching2.rs
new file mode 100644
index 000000000..e22e94314
--- /dev/null
+++ b/tests/mir-opt/uninhabited_enum_branching2.rs
@@ -0,0 +1,34 @@
+enum Empty { }
+
+// test matching an enum with uninhabited variants
+enum Test1 {
+    A(Empty),
+    B(Empty),
+    C,
+    D,
+}
+
+struct Plop {
+    xx: u32,
+    test1: Test1,
+}
+
+// EMIT_MIR uninhabited_enum_branching2.main.UninhabitedEnumBranching.diff
+// EMIT_MIR uninhabited_enum_branching2.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir
+fn main() {
+    let plop = Plop { xx: 51, test1: Test1::C };
+
+    match &plop.test1 {
+        Test1::A(_) => "A(Empty)",
+        Test1::B(_) => "B(Empty)",
+        Test1::C => "C",
+        Test1::D => "D",
+    };
+
+    match plop.test1 {
+        Test1::A(_) => "A(Empty)",
+        Test1::B(_) => "B(Empty)",
+        Test1::C => "C",
+        Test1::D => "D",
+    };
+}