--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/llvm/test/Transforms/GlobalOpt/globalsra-unknown-index.ll	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,54 @@
+; RUN: opt < %s -globalopt -S | FileCheck %s
+
+; globalopt should not sra the global, because it can't see the index.
+
+%struct.X = type { [3 x i32], [3 x i32] }
+
+; CHECK: @Y = internal unnamed_addr global [3 x %struct.X] zeroinitializer
+@Y = internal global [3 x %struct.X] zeroinitializer
+
+@addr = external global i8
+
+define void @frob() {
+  store i32 1, i32* getelementptr inbounds ([3 x %struct.X], [3 x %struct.X]* @Y, i64 0, i64 0, i32 0, i64 ptrtoint (i8* @addr to i64)), align 4
+  ret void
+}
+
+; CHECK-LABEL: @borf
+; CHECK: %a = load
+; CHECK: %b = load
+; CHECK: add i32 %a, %b
+define i32 @borf(i64 %i, i64 %j) {
+  %p = getelementptr inbounds [3 x %struct.X], [3 x %struct.X]* @Y, i64 0, i64 0, i32 0, i64 0
+  %a = load i32, i32* %p
+  %q = getelementptr inbounds [3 x %struct.X], [3 x %struct.X]* @Y, i64 0, i64 0, i32 1, i64 0
+  %b = load i32, i32* %q
+  %c = add i32 %a, %b
+  ret i32 %c
+}
+
+; CHECK-LABEL: @borg
+; CHECK: %a = load
+; CHECK: %b = load
+; CHECK: add i32 %a, %b
+define i32 @borg(i64 %i, i64 %j) {
+  %p = getelementptr inbounds [3 x %struct.X], [3 x %struct.X]* @Y, i64 0, i64 1, i32 0, i64 1
+  %a = load i32, i32* %p
+  %q = getelementptr inbounds [3 x %struct.X], [3 x %struct.X]* @Y, i64 0, i64 1, i32 1, i64 1
+  %b = load i32, i32* %q
+  %c = add i32 %a, %b
+  ret i32 %c
+}
+
+; CHECK-LABEL: @borh
+; CHECK: %a = load
+; CHECK: %b = load
+; CHECK: add i32 %a, %b
+define i32 @borh(i64 %i, i64 %j) {
+  %p = getelementptr inbounds [3 x %struct.X], [3 x %struct.X]* @Y, i64 0, i64 2, i32 0, i64 2
+  %a = load i32, i32* %p
+  %q = getelementptr inbounds [3 x %struct.X], [3 x %struct.X]* @Y, i64 0, i64 2, i32 1, i64 2
+  %b = load i32, i32* %q
+  %c = add i32 %a, %b
+  ret i32 %c
+}