diff options
Diffstat (limited to 'include/llvm/Support/Compiler.h')
| -rw-r--r-- | include/llvm/Support/Compiler.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/llvm/Support/Compiler.h b/include/llvm/Support/Compiler.h index f654f32..ea0a4da 100644 --- a/include/llvm/Support/Compiler.h +++ b/include/llvm/Support/Compiler.h @@ -38,6 +38,25 @@ #define llvm_move(value) (value) #endif +/// LLVM_DELETED_FUNCTION - Expands to = delete if the compiler supports it. +/// Use to mark functions as uncallable. Member functions with this should +/// be declared private so that some behaivor is kept in C++03 mode. +/// +/// class DontCopy { +/// private: +/// DontCopy(const DontCopy&) LLVM_DELETED_FUNCTION; +/// DontCopy &operator =(const DontCopy&) LLVM_DELETED_FUNCTION; +/// public: +/// ... +/// }; +#if (__has_feature(cxx_deleted_functions) \ + || defined(__GXX_EXPERIMENTAL_CXX0X__)) + // No version of MSVC currently supports this. +#define LLVM_DELETED_FUNCTION = delete +#else +#define LLVM_DELETED_FUNCTION +#endif + /// LLVM_LIBRARY_VISIBILITY - If a class marked with this attribute is linked /// into a shared library, then the class should be private to the library and /// not accessible from outside it. Can also be used to mark variables and @@ -168,4 +187,13 @@ # define LLVM_BUILTIN_UNREACHABLE __builtin_unreachable() #endif +// LLVM_BUILTIN_TRAP - On compilers which support it, expands to an expression +// which causes the program to exit abnormally. +#if defined(__clang__) || (__GNUC__ > 4) \ + || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) +# define LLVM_BUILTIN_TRAP __builtin_trap() +#else +# define LLVM_BUILTIN_TRAP *(volatile int*)0x11 = 0 +#endif + #endif |