--- a/test/Analysis/BasicAA/struct-geps.ll	Tue Jan 26 22:56:36 2016 +0900
+++ b/test/Analysis/BasicAA/struct-geps.ll	Fri Nov 25 19:14:25 2016 +0900
@@ -162,3 +162,12 @@
   %y = getelementptr %struct2, %struct2* %st, i32 0, i32 0, i32 1, i32 1
   ret void
 }
+
+; PR27418 - Treat GEP indices with the same value but different types the same
+; CHECK-LABEL: test_different_index_types
+; CHECK: MustAlias: i16* %tmp1, i16* %tmp2
+define void @test_different_index_types([2 x i16]* %arr) {
+  %tmp1 = getelementptr [2 x i16], [2 x i16]* %arr, i16 0, i32 1
+  %tmp2 = getelementptr [2 x i16], [2 x i16]* %arr, i16 0, i16 1
+  ret void
+}