Nick Lewycky | 32d4abf | 2012-01-24 21:28:47 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -Wover-aligned -verify %s |
Nick Lewycky | fca84b2 | 2012-01-24 21:15:41 +0000 | [diff] [blame] | 2 | |
| 3 | namespace test1 { |
| 4 | struct Test { |
| 5 | template <typename T> |
| 6 | struct SeparateCacheLines { |
| 7 | T data; |
| 8 | } __attribute__((aligned(256))); |
| 9 | |
| 10 | SeparateCacheLines<int> high_contention_data[10]; |
| 11 | }; |
| 12 | |
| 13 | void helper() { |
| 14 | Test t; |
| 15 | new Test; // expected-warning {{type 'test1::Test' requires 256 bytes of alignment and the default allocator only guarantees}} |
| 16 | new Test[10]; // expected-warning {{type 'test1::Test' requires 256 bytes of alignment and the default allocator only guarantees}} |
| 17 | } |
| 18 | } |
| 19 | |
| 20 | namespace test2 { |
| 21 | class Test { |
| 22 | typedef int __attribute__((aligned(256))) aligned_int; |
| 23 | aligned_int high_contention_data[10]; |
| 24 | }; |
| 25 | |
| 26 | void helper() { |
| 27 | Test t; |
| 28 | new Test; // expected-warning {{type 'test2::Test' requires 256 bytes of alignment and the default allocator only guarantees}} |
| 29 | new Test[10]; // expected-warning {{type 'test2::Test' requires 256 bytes of alignment and the default allocator only guarantees}} |
| 30 | } |
| 31 | } |
| 32 | |
| 33 | namespace test3 { |
| 34 | struct Test { |
| 35 | template <typename T> |
| 36 | struct SeparateCacheLines { |
| 37 | T data; |
| 38 | } __attribute__((aligned(256))); |
| 39 | |
| 40 | void* operator new(unsigned long) { |
| 41 | return 0; |
| 42 | } |
| 43 | |
| 44 | SeparateCacheLines<int> high_contention_data[10]; |
| 45 | }; |
| 46 | |
| 47 | void helper() { |
| 48 | Test t; |
| 49 | new Test; |
| 50 | new Test[10]; // expected-warning {{type 'test3::Test' requires 256 bytes of alignment and the default allocator only guarantees}} |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | namespace test4 { |
| 55 | struct Test { |
| 56 | template <typename T> |
| 57 | struct SeparateCacheLines { |
| 58 | T data; |
| 59 | } __attribute__((aligned(256))); |
| 60 | |
| 61 | void* operator new[](unsigned long) { |
| 62 | return 0; |
| 63 | } |
| 64 | |
| 65 | SeparateCacheLines<int> high_contention_data[10]; |
| 66 | }; |
| 67 | |
| 68 | void helper() { |
| 69 | Test t; |
| 70 | new Test; // expected-warning {{type 'test4::Test' requires 256 bytes of alignment and the default allocator only guarantees}} |
| 71 | new Test[10]; |
| 72 | } |
| 73 | } |