1// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - | FileCheck %s
2
3template<typename T>
4struct S {
5  static int n;
6};
7template<typename T> int S<T>::n = 5;
8
9int f() {
10  // Make sure that the reference here is enough to trigger the instantiation of
11  // the static data member.
12  // CHECK: @_ZN1SIiE1nE = weak_odr global i32 5
13  int a[S<int>::n];
14  return sizeof a;
15}
16
17// rdar://problem/9506377
18void test0(void *array, int n) {
19  // CHECK: define void @_Z5test0Pvi(
20  // CHECK:      [[ARRAY:%.*]] = alloca i8*, align 8
21  // CHECK-NEXT: [[N:%.*]] = alloca i32, align 4
22  // CHECK-NEXT: [[REF:%.*]] = alloca i16*, align 8
23  // CHECK-NEXT: [[S:%.*]] = alloca i16, align 2
24  // CHECK-NEXT: store i8*
25  // CHECK-NEXT: store i32
26
27  // Capture the bounds.
28  // CHECK-NEXT: [[T0:%.*]] = load i32* [[N]], align 4
29  // CHECK-NEXT: [[DIM0:%.*]] = zext i32 [[T0]] to i64
30  // CHECK-NEXT: [[T0:%.*]] = load i32* [[N]], align 4
31  // CHECK-NEXT: [[T1:%.*]] = add nsw i32 [[T0]], 1
32  // CHECK-NEXT: [[DIM1:%.*]] = zext i32 [[T1]] to i64
33  typedef short array_t[n][n+1];
34
35  // CHECK-NEXT: [[T0:%.*]] = load i8** [[ARRAY]], align 8
36  // CHECK-NEXT: [[T1:%.*]] = bitcast i8* [[T0]] to i16*
37  // CHECK-NEXT: store i16* [[T1]], i16** [[REF]], align 8
38  array_t &ref = *(array_t*) array;
39
40  // CHECK-NEXT: [[T0:%.*]] = load i16** [[REF]]
41  // CHECK-NEXT: [[T1:%.*]] = mul nsw i64 1, [[DIM1]]
42  // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds i16* [[T0]], i64 [[T1]]
43  // CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i16* [[T2]], i64 2
44  // CHECK-NEXT: store i16 3, i16* [[T3]]
45  ref[1][2] = 3;
46
47  // CHECK-NEXT: [[T0:%.*]] = load i16** [[REF]]
48  // CHECK-NEXT: [[T1:%.*]] = mul nsw i64 4, [[DIM1]]
49  // CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds i16* [[T0]], i64 [[T1]]
50  // CHECK-NEXT: [[T3:%.*]] = getelementptr inbounds i16* [[T2]], i64 5
51  // CHECK-NEXT: [[T4:%.*]] = load i16* [[T3]]
52  // CHECK-NEXT: store i16 [[T4]], i16* [[S]], align 2
53  short s = ref[4][5];
54
55  // CHECK-NEXT: ret void
56}
57