xref: /llvm-project/llvm/test/Transforms/GlobalOpt/globalsra-unknown-index.ll (revision d586bd5ca231a6022f439d4c6e43cfeeb53eb1d6)
1; RUN: opt < %s -passes=globalopt -S | FileCheck %s
2
3; globalopt should not sra the global, because it can't see the index.
4
5%struct.X = type { [3 x i32], [3 x i32] }
6
7; CHECK: @Y = internal unnamed_addr global [3 x %struct.X] zeroinitializer
8@Y = internal global [3 x %struct.X] zeroinitializer
9
10@addr = external global i8
11
12define void @frob() {
13  store i32 1, ptr getelementptr inbounds ([3 x %struct.X], ptr @Y, i64 0, i64 0, i32 0, i64 ptrtoint (ptr @addr to i64)), align 4
14  ret void
15}
16
17; CHECK-LABEL: @borf
18; CHECK: %a = load
19; CHECK: %b = load
20; CHECK: add i32 %a, %b
21define i32 @borf(i64 %i, i64 %j) {
22  %a = load i32, ptr @Y
23  %q = getelementptr inbounds [3 x %struct.X], ptr @Y, i64 0, i64 0, i32 1, i64 0
24  %b = load i32, ptr %q
25  %c = add i32 %a, %b
26  ret i32 %c
27}
28
29; CHECK-LABEL: @borg
30; CHECK: %a = load
31; CHECK: %b = load
32; CHECK: add i32 %a, %b
33define i32 @borg(i64 %i, i64 %j) {
34  %p = getelementptr inbounds [3 x %struct.X], ptr @Y, i64 0, i64 1, i32 0, i64 1
35  %a = load i32, ptr %p
36  %q = getelementptr inbounds [3 x %struct.X], ptr @Y, i64 0, i64 1, i32 1, i64 1
37  %b = load i32, ptr %q
38  %c = add i32 %a, %b
39  ret i32 %c
40}
41
42; CHECK-LABEL: @borh
43; CHECK: %a = load
44; CHECK: %b = load
45; CHECK: add i32 %a, %b
46define i32 @borh(i64 %i, i64 %j) {
47  %p = getelementptr inbounds [3 x %struct.X], ptr @Y, i64 0, i64 2, i32 0, i64 2
48  %a = load i32, ptr %p
49  %q = getelementptr inbounds [3 x %struct.X], ptr @Y, i64 0, i64 2, i32 1, i64 2
50  %b = load i32, ptr %q
51  %c = add i32 %a, %b
52  ret i32 %c
53}
54