1 files changed, 23 insertions, 0 deletions
diff --git a/test/Transforms/LoopIndexSplit/PR4174.ll b/test/Transforms/LoopIndexSplit/PR4174.ll
new file mode 100644
index 000000000000..e8f5a737f05b
--- /dev/null
+++ b/test/Transforms/LoopIndexSplit/PR4174.ll
@@ -0,0 +1,23 @@
+; RUN: llvm-as < %s | opt -loop-index-split | llvm-dis | not grep clone
+
+declare void @f()
+
+define i32 @main() {
+entry:
+        br label %head
+head:
+        %i = phi i32 [0, %entry], [%i1, %tail]
+        call void @f()
+        %splitcond = icmp slt i32 %i, 2
+        br i1 %splitcond, label %yes, label %no
+yes:
+        br label %tail
+no:
+        br label %tail
+tail:
+        %i1 = add i32 %i, 1
+        %exitcond = icmp slt i32 %i1, 4
+        br i1 %exitcond, label %head, label %exit
+exit:
+        ret i32 0
+}