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