diff options
| -rw-r--r-- | llvm/include/llvm/Support/Compiler.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/llvm/include/llvm/Support/Compiler.h b/llvm/include/llvm/Support/Compiler.h index c81fbaff9db..4da7fd48fa5 100644 --- a/llvm/include/llvm/Support/Compiler.h +++ b/llvm/include/llvm/Support/Compiler.h @@ -29,6 +29,10 @@ # define __has_attribute(x) 0 #endif +#ifndef __has_cpp_attribute +# define __has_cpp_attribute(x) 0 +#endif + #ifndef __has_builtin # define __has_builtin(x) 0 #endif @@ -401,4 +405,12 @@ #define LLVM_THREAD_LOCAL #endif +/// \macro LLVM_FALLTHROUGH +/// \brief Marks an empty statement preceding a deliberate switch fallthrough. +#if __has_cpp_attribute(clang::fallthrough) +#define LLVM_FALLTHROUGH [[clang::fallthrough]] +#else +#define LLVM_FALLTHROUGH +#endif + #endif |
