1 files changed, 20 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/pr21651.ll b/test/Transforms/InstCombine/pr21651.ll
new file mode 100644
index 0000000..914785f
--- /dev/null
+++ b/test/Transforms/InstCombine/pr21651.ll
@@ -0,0 +1,20 @@
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+define void @PR21651() {
+  switch i2 0, label %out [
+    i2 0, label %out
+    i2 1, label %out
+  ]
+
+out:
+  ret void
+}
+
+; CHECK-LABEL: define void @PR21651(
+; CHECK:   switch i2 0, label %out [
+; CHECK:     i2 0, label %out
+; CHECK:     i2 1, label %out
+; CHECK:   ]
+; CHECK: out:                                              ; preds = %0, %0, %0
+; CHECK:   ret void
+; CHECK: }