blob: 42a4e3523ad2f6d4e1ed782b093572c30e690530 (
plain) (
blame)
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
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -Wover-aligned -verify %s
namespace test1 {
struct Test {
template <typename T>
struct SeparateCacheLines {
T data;
} __attribute__((aligned(256)));
SeparateCacheLines<int> high_contention_data[10];
};
void helper() {
Test t;
new Test; // expected-warning {{type 'test1::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
new Test[10]; // expected-warning {{type 'test1::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
}
}
namespace test2 {
class Test {
typedef int __attribute__((aligned(256))) aligned_int;
aligned_int high_contention_data[10];
};
void helper() {
Test t;
new Test; // expected-warning {{type 'test2::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
new Test[10]; // expected-warning {{type 'test2::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
}
}
namespace test3 {
struct Test {
template <typename T>
struct SeparateCacheLines {
T data;
} __attribute__((aligned(256)));
void* operator new(unsigned long) {
return 0;
}
SeparateCacheLines<int> high_contention_data[10];
};
void helper() {
Test t;
new Test;
new Test[10]; // expected-warning {{type 'test3::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
}
}
namespace test4 {
struct Test {
template <typename T>
struct SeparateCacheLines {
T data;
} __attribute__((aligned(256)));
void* operator new[](unsigned long) {
return 0;
}
SeparateCacheLines<int> high_contention_data[10];
};
void helper() {
Test t;
new Test; // expected-warning {{type 'test4::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
new Test[10];
}
}
|
