diff options
Diffstat (limited to 'include/llvm/Support/Compiler.h')
| -rw-r--r-- | include/llvm/Support/Compiler.h | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/include/llvm/Support/Compiler.h b/include/llvm/Support/Compiler.h index 4469ae3..7ceeb32 100644 --- a/include/llvm/Support/Compiler.h +++ b/include/llvm/Support/Compiler.h @@ -24,7 +24,7 @@ /// does not imply the existence of any other C++ library features. #if (__has_feature(cxx_rvalue_references) \ || defined(__GXX_EXPERIMENTAL_CXX0X__) \ - || _MSC_VER >= 1600) + || (defined(_MSC_VER) && _MSC_VER >= 1600)) #define LLVM_USE_RVALUE_REFERENCES 1 #else #define LLVM_USE_RVALUE_REFERENCES 0 @@ -40,7 +40,7 @@ /// 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. +/// be declared private so that some behavior is kept in C++03 mode. /// /// class DontCopy { /// private: @@ -57,6 +57,22 @@ #define LLVM_DELETED_FUNCTION #endif +/// LLVM_FINAL - Expands to 'final' if the compiler supports it. +/// Use to mark classes or virtual methods as final. +#if (__has_feature(cxx_override_control)) +#define LLVM_FINAL final +#else +#define LLVM_FINAL +#endif + +/// LLVM_OVERRIDE - Expands to 'override' if the compiler supports it. +/// Use to mark virtual methods as overriding a base class method. +#if (__has_feature(cxx_override_control)) +#define LLVM_OVERRIDE override +#else +#define LLVM_OVERRIDE +#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 @@ -106,9 +122,11 @@ #endif #if (__GNUC__ >= 4) -#define BUILTIN_EXPECT(EXPR, VALUE) __builtin_expect((EXPR), (VALUE)) +#define LLVM_LIKELY(EXPR) __builtin_expect((bool)(EXPR), true) +#define LLVM_UNLIKELY(EXPR) __builtin_expect((bool)(EXPR), false) #else -#define BUILTIN_EXPECT(EXPR, VALUE) (EXPR) +#define LLVM_LIKELY(EXPR) (EXPR) +#define LLVM_UNLIKELY(EXPR) (EXPR) #endif @@ -187,4 +205,13 @@ # 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 |
