1 files changed, 33 insertions, 0 deletions
diff --git a/test/Analysis/ScalarEvolution/pr22856.ll b/test/Analysis/ScalarEvolution/pr22856.ll
new file mode 100644
index 0000000..89e8351
--- /dev/null
+++ b/test/Analysis/ScalarEvolution/pr22856.ll
@@ -0,0 +1,33 @@
+; RUN: opt -loop-reduce -verify < %s
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64--linux-gnu"
+
+define void @unbounded() {
+
+block_A:
+  %0 = sext i32 undef to i64
+  br i1 undef, label %block_F, label %block_G
+
+block_C:                ; preds = %block_F
+  br i1 undef, label %block_D, label %block_E
+
+block_D:                  ; preds = %block_D, %block_C
+  br i1 undef, label %block_E, label %block_D
+
+block_E:              ; preds = %block_D, %block_C
+  %iv2 = phi i64 [ %4, %block_D ], [ %4, %block_C ]
+  %1 = add nsw i32 %iv1, 1
+  %2 = icmp eq i32 %1, undef
+  br i1 %2, label %block_G, label %block_F
+
+block_F:          ; preds = %block_E, %block_A
+  %iv3 = phi i64 [ %iv2, %block_E ], [ %0, %block_A ]
+  %iv1 = phi i32 [ %1, %block_E ], [ undef, %block_A ]
+  %3 = add nsw i64 %iv3, 2
+  %4 = add nsw i64 %iv3, 1
+  br label %block_C
+
+block_G:                              ; preds = %block_E, %block_A
+  ret void
+}