1 files changed, 28 insertions, 0 deletions
diff --git a/test/Transforms/CodeExtractor/2004-03-14-NoSwitchSupport.ll b/test/Transforms/CodeExtractor/2004-03-14-NoSwitchSupport.ll
new file mode 100644
index 0000000000000..ded821b702f5c
--- /dev/null
+++ b/test/Transforms/CodeExtractor/2004-03-14-NoSwitchSupport.ll
@@ -0,0 +1,28 @@
+; RUN: llvm-as < %s | opt -loop-extract-single -disable-output
+
+define void @ab() {
+entry:
+        br label %codeReplTail
+
+then.1:         ; preds = %codeReplTail
+        br label %loopentry.1
+
+loopentry.1:            ; preds = %no_exit.1, %then.1
+        br i1 false, label %no_exit.1, label %loopexit.0.loopexit1
+
+no_exit.1:              ; preds = %loopentry.1
+        br label %loopentry.1
+
+loopexit.0.loopexit:            ; preds = %codeReplTail
+        ret void
+
+loopexit.0.loopexit1:           ; preds = %loopentry.1
+        ret void
+
+codeReplTail:           ; preds = %codeReplTail, %entry
+        switch i16 0, label %codeReplTail [
+                 i16 0, label %loopexit.0.loopexit
+                 i16 1, label %then.1
+        ]
+}
+