| // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -std=c++11 -faligned-allocation -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -std=c++14 -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -std=c++14 -faligned-allocation -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -std=c++17 -fsyntax-only -verify %s |
| // RUN: %clang_cc1 -std=c++17 -faligned-allocation -fsyntax-only -verify %s |
| |
| namespace std { |
| typedef __SIZE_TYPE__ size_t; |
| struct nothrow_t {}; |
| #if __cplusplus >= 201103L |
| enum class align_val_t : size_t {}; |
| #else |
| enum align_val_t { |
| // We can't force an underlying type when targeting windows. |
| #ifndef _WIN32 |
| __zero = 0, |
| __max = (size_t)-1 |
| #endif |
| }; |
| #endif |
| } // namespace std |
| |
| void *operator new(std::size_t count, std::align_val_t al) __attribute__((alloc_align(2))); |
| |
| #define OVERALIGNED alignas(__STDCPP_DEFAULT_NEW_ALIGNMENT__ * 2) |
| |
| struct OVERALIGNED A { |
| A(); |
| int n[128]; |
| }; |
| |
| void *ptr_variable(int align) { return new (std::align_val_t(align)) A; } |
| void *ptr_align16() { return new (std::align_val_t(16)) A; } |
| void *ptr_align15() { return new (std::align_val_t(15)) A; } // expected-warning {{requested alignment is not a power of 2}} |
| |
| struct alignas(128) S { |
| S() {} |
| }; |
| |
| void *alloc_overaligned_struct() { |
| return new S; |
| } |
| |
| void *alloc_overaligned_struct_with_extra_variable_alignment(int align) { |
| return new (std::align_val_t(align)) S; |
| } |
| void *alloc_overaligned_struct_with_extra_256_alignment(int align) { |
| return new (std::align_val_t(256)) S; |
| } |
| void *alloc_overaligned_struct_with_extra_255_alignment(int align) { |
| return new (std::align_val_t(255)) S; // expected-warning {{requested alignment is not a power of 2}} |
| } |
| |
| std::align_val_t align_variable(int align) { return std::align_val_t(align); } |
| std::align_val_t align_align16() { return std::align_val_t(16); } |
| std::align_val_t align_align15() { return std::align_val_t(15); } |