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| // 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; // expected-warning {{'operator new' should not return a null pointer unless it is declared 'throw()'}}
}
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; // expected-warning {{'operator new[]' should not return a null pointer unless it is declared 'throw()'}}
}
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];
}
}
|