1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/test/Transforms/ConstProp/phi.ll b/llvm/test/Transforms/ConstProp/phi.ll
new file mode 100644
index 00000000000..c65d34cc933
--- /dev/null
+++ b/llvm/test/Transforms/ConstProp/phi.ll
@@ -0,0 +1,17 @@
+; This is a basic sanity check for constant propagation.  The add instruction
+; should be eliminated.
+
+; RUN: opt < %s -constprop -die -S | not grep phi
+
+define i32 @test(i1 %B) {
+BB0:
+        br i1 %B, label %BB1, label %BB3
+
+BB1:            ; preds = %BB0
+        br label %BB3
+
+BB3:            ; preds = %BB1, %BB0
+        %Ret = phi i32 [ 1, %BB0 ], [ 1, %BB1 ]         ; <i32> [#uses=1]
+        ret i32 %Ret
+}
+