New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8071 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 40 insertions, 0 deletions

diff --git a/test/Transforms/TailDup/2003-08-23-InvalidatedPointers.ll b/test/Transforms/TailDup/2003-08-23-InvalidatedPointers.ll
new file mode 100644
index 0000000000..35c8264fb6
--- /dev/null
+++ b/test/Transforms/TailDup/2003-08-23-InvalidatedPointers.ll
@@ -0,0 +1,40 @@
+; RUN: as < %s | opt -tailduplicate -disable-output
+
+implementation
+
+int %sell_haggle() {
+entry:		; No predecessors!
+	br bool false, label %then.5, label %UnifiedExitNode
+
+then.5:		; preds = %entry
+	br bool false, label %loopentry.1.preheader, label %else.1
+
+else.1:		; preds = %then.5
+	br label %loopentry.1.preheader
+
+loopentry.1.preheader:		; preds = %then.5, %else.1
+	%final_ask.0 = phi int [ 0, %else.1 ], [ 0, %then.5 ]		; <int> [#uses=2]
+	br label %loopentry.1
+
+loopentry.1:		; preds = %loopentry.1.preheader, %endif.17
+	switch uint 0, label %UnifiedExitNode [
+		 uint 2, label %UnifiedExitNode
+		 uint 1, label %endif.16
+	]
+
+endif.16:		; preds = %loopentry.1
+	br bool false, label %then.17, label %UnifiedExitNode
+
+then.17:		; preds = %endif.16
+	br bool false, label %then.18, label %endif.17
+
+then.18:		; preds = %then.17
+	br bool false, label %endif.17, label %UnifiedExitNode
+
+endif.17:		; preds = %then.17, %then.18
+	%cur_ask.3 = phi int [ %final_ask.0, %then.17 ], [ %final_ask.0, %then.18 ]		; <int> [#uses=0]
+	br bool false, label %loopentry.1, label %UnifiedExitNode
+
+UnifiedExitNode:		; preds = %entry, %endif.17, %then.18, %endif.16, %loopentry.1, %loopentry.1
+	ret int 0
+}