new testcase distilled from SPASS
llvm-svn: 26319
diff --git a/llvm/test/Regression/Transforms/LoopUnswitch/2006-02-22-UnswitchCrash.ll b/llvm/test/Regression/Transforms/LoopUnswitch/2006-02-22-UnswitchCrash.ll
new file mode 100644
index 0000000..7b02887
--- /dev/null
+++ b/llvm/test/Regression/Transforms/LoopUnswitch/2006-02-22-UnswitchCrash.ll
@@ -0,0 +1,42 @@
+; RUN: llvm-as < %s | opt -loop-unswitch -disable-output
+
+void %sort_Eq(int * %S2) {
+entry:
+ br bool false, label %list_Length.exit, label %cond_true.i
+
+cond_true.i: ; preds = %entry
+ ret void
+
+list_Length.exit: ; preds = %entry
+ br bool false, label %list_Length.exit9, label %cond_true.i5
+
+cond_true.i5: ; preds = %list_Length.exit
+ ret void
+
+list_Length.exit9: ; preds = %list_Length.exit
+ br bool false, label %bb78, label %return
+
+bb44: ; preds = %bb78, %cond_next68
+ br bool %tmp49.not, label %bb62, label %bb62.loopexit
+
+bb62.loopexit: ; preds = %bb44
+ br label %bb62
+
+bb62: ; preds = %bb62.loopexit, %bb44
+ br bool false, label %return.loopexit, label %cond_next68
+
+cond_next68: ; preds = %bb62
+ br bool false, label %return.loopexit, label %bb44
+
+bb78: ; preds = %list_Length.exit9
+ %tmp49.not = seteq int* %S2, null ; <bool> [#uses=1]
+ br label %bb44
+
+return.loopexit: ; preds = %cond_next68, %bb62
+ %retval.0.ph = phi uint [ 1, %cond_next68 ], [ 0, %bb62 ] ; <uint> [#uses=1]
+ br label %return
+
+return: ; preds = %return.loopexit, %list_Length.exit9
+ %retval.0 = phi uint [ 0, %list_Length.exit9 ], [ %retval.0.ph, %return.loopexit ] ; <uint> [#uses=0]
+ ret void
+}