1 files changed, 71 insertions, 0 deletions
diff --git a/test/Transforms/LoopStrengthReduce/2007-04-23-UseIterator.ll b/test/Transforms/LoopStrengthReduce/2007-04-23-UseIterator.ll
new file mode 100644
index 000000000000..2d2dade0bdc2
--- /dev/null
+++ b/test/Transforms/LoopStrengthReduce/2007-04-23-UseIterator.ll
@@ -0,0 +1,71 @@
+; RUN: llvm-as < %s | opt -loop-reduce -disable-output
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
+
+target triple = "i686-apple-darwin9"
+
+define i8* @foo( i8* %ABC) {
+entry:
+	switch i8 0, label %bb129 [
+		 i8 0, label %UnifiedReturnBlock
+		 i8 9, label %UnifiedReturnBlock
+		 i8 32, label %UnifiedReturnBlock
+		 i8 35, label %UnifiedReturnBlock
+		 i8 37, label %bb16.preheader
+	]
+
+bb16.preheader:		; preds = %entry
+	br label %bb16
+
+bb16:		; preds = %cond_next102, %bb16.preheader
+	%indvar = phi i32 [ %indvar.next, %cond_next102 ], [ 0, %bb16.preheader ]		; <i32> [#uses=2]
+	%ABC.2146.0.rec = mul i32 %indvar, 3		; <i32> [#uses=1]
+	br i1 false, label %UnifiedReturnBlock.loopexit, label %cond_next102
+
+cond_next102:		; preds = %bb16
+	%tmp138145.rec = add i32 %ABC.2146.0.rec, 3		; <i32> [#uses=1]
+	%tmp138145 = getelementptr i8* %ABC, i32 %tmp138145.rec		; <i8*> [#uses=4]
+	%indvar.next = add i32 %indvar, 1		; <i32> [#uses=1]
+	switch i8 0, label %bb129.loopexit [
+		 i8 0, label %UnifiedReturnBlock.loopexit
+		 i8 9, label %UnifiedReturnBlock.loopexit
+		 i8 32, label %UnifiedReturnBlock.loopexit
+		 i8 35, label %UnifiedReturnBlock.loopexit
+		 i8 37, label %bb16
+	]
+
+bb129.loopexit:		; preds = %cond_next102
+	br label %bb129
+
+bb129:		; preds = %bb129.loopexit, %entry
+	ret i8* null
+
+UnifiedReturnBlock.loopexit:		; preds = %cond_next102, %cond_next102, %cond_next102, %cond_next102, %bb16
+	%UnifiedRetVal.ph = phi i8* [ %tmp138145, %cond_next102 ], [ %tmp138145, %cond_next102 ], [ %tmp138145, %cond_next102 ], [ %tmp138145, %cond_next102 ], [ null, %bb16 ]		; <i8*> [#uses=0]
+	br label %UnifiedReturnBlock
+
+UnifiedReturnBlock:		; preds = %UnifiedReturnBlock.loopexit, %entry, %entry, %entry, %entry
+	ret i8* null
+}
+
+define i8* @bar() {
+entry:
+	switch i8 0, label %bb158 [
+		 i8 37, label %bb74
+		 i8 58, label %cond_true
+		 i8 64, label %bb11
+	]
+
+bb11:		; preds = %entry
+	ret i8* null
+
+cond_true:		; preds = %entry
+	ret i8* null
+
+bb74:		; preds = %entry
+	ret i8* null
+
+bb158:		; preds = %entry
+	ret i8* null
+}
+