1 files changed, 29 insertions, 0 deletions
diff --git a/test/Other/2003-02-19-LoopInfoNestingBug.ll b/test/Other/2003-02-19-LoopInfoNestingBug.ll
new file mode 100644
index 000000000000..d2945536ea79
--- /dev/null
+++ b/test/Other/2003-02-19-LoopInfoNestingBug.ll
@@ -0,0 +1,29 @@
+; LoopInfo is incorrectly calculating loop nesting!  In this case it doesn't 
+; figure out that loop "Inner" should be nested inside of leep "LoopHeader", 
+; and instead nests it just inside loop "Top"
+;
+; RUN: llvm-as < %s | opt -analyze -loops | \
+; RUN:   grep {     Loop at depth 3 containing: %Inner<header><latch><exit>}
+;
+define void @test() {
+        br label %Top
+
+Top:            ; preds = %Out, %0
+        br label %LoopHeader
+
+Next:           ; preds = %LoopHeader
+        br i1 false, label %Inner, label %Out
+
+Inner:          ; preds = %Inner, %Next
+        br i1 false, label %Inner, label %LoopHeader
+
+LoopHeader:             ; preds = %Inner, %Top
+        br label %Next
+
+Out:            ; preds = %Next
+        br i1 false, label %Top, label %Done
+
+Done:           ; preds = %Out
+        ret void
+}
+