new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12873 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/LoopSimplify/2004-04-12-LoopSimplify-SwitchBackedges.ll b/test/Transforms/LoopSimplify/2004-04-12-LoopSimplify-SwitchBackedges.ll
new file mode 100644 (file)
index 0000000..f963780
--- /dev/null
+++ b/test/Transforms/LoopSimplify/2004-04-12-LoopSimplify-SwitchBackedges.ll
@@ -0,0 +1,22 @@
+; RUN: llvm-as < %s | opt -loopsimplify -disable-output
+
+implementation   
+
+void %test() {
+loopentry.0:
+       br label %loopentry.1
+
+loopentry.1:
+       %pixel.4 = phi int [ 0, %loopentry.0 ], [ %pixel.4, %loopentry.1], [ %tmp.370, %then.6 ], [ %tmp.370, %then.6 ]
+       br bool false, label %then.6, label %loopentry.1
+
+then.6:
+       %tmp.370 = add int 0, 0         ; <int> [#uses=2]
+       switch uint 0, label %label.7 [
+                uint 6408, label %loopentry.1
+                uint 32841, label %loopentry.1
+       ]
+
+label.7:               ; preds = %then.6
+       ret void
+}