74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
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// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -Wover-aligned -verify %s
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namespace test1 {
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struct Test {
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template <typename T>
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struct SeparateCacheLines {
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T data;
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} __attribute__((aligned(256)));
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SeparateCacheLines<int> high_contention_data[10];
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};
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void helper() {
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Test t;
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new Test; // expected-warning {{type 'test1::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
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new Test[10]; // expected-warning {{type 'test1::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
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}
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}
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namespace test2 {
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class Test {
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typedef int __attribute__((aligned(256))) aligned_int;
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aligned_int high_contention_data[10];
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};
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void helper() {
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Test t;
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new Test; // expected-warning {{type 'test2::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
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new Test[10]; // expected-warning {{type 'test2::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
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}
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}
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namespace test3 {
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struct Test {
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template <typename T>
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struct SeparateCacheLines {
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T data;
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} __attribute__((aligned(256)));
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void* operator new(unsigned long) {
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return 0; // expected-warning {{'operator new' should not return a null pointer unless it is declared 'throw()'}}
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}
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SeparateCacheLines<int> high_contention_data[10];
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};
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void helper() {
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Test t;
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new Test;
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new Test[10]; // expected-warning {{type 'test3::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
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}
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}
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namespace test4 {
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struct Test {
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template <typename T>
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struct SeparateCacheLines {
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T data;
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} __attribute__((aligned(256)));
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void* operator new[](unsigned long) {
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return 0; // expected-warning {{'operator new[]' should not return a null pointer unless it is declared 'throw()'}}
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}
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SeparateCacheLines<int> high_contention_data[10];
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};
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void helper() {
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Test t;
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new Test; // expected-warning {{type 'test4::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
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new Test[10];
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}
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}
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