New testcase

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

diff --git a/test/Transforms/TailDup/2003-08-23-InvalidatedPointers.ll b/test/Transforms/TailDup/2003-08-23-InvalidatedPointers.ll
new file mode 100644 (file)
index 0000000..35c8264
--- /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
+}