diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/include/llvm/Support/Compiler.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/include/llvm/Support/Compiler.h b/llvm/include/llvm/Support/Compiler.h index 516691f29de..6b00ff91cb0 100644 --- a/llvm/include/llvm/Support/Compiler.h +++ b/llvm/include/llvm/Support/Compiler.h @@ -33,6 +33,10 @@ # 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 @@ -228,6 +232,15 @@ #define LLVM_ATTRIBUTE_RETURNS_NOALIAS #endif +/// LLVM_FALLTHROUGH - Mark fallthrough cases in switch statements. +#if __has_cpp_attribute(fallthrough) +#define LLVM_FALLTHROUGH [[fallthrough]] +#elif __has_cpp_attribute(clang::fallthrough) +#define LLVM_FALLTHROUGH [[clang::fallthrough]] +#else +#define LLVM_FALLTHROUGH +#endif + /// LLVM_EXTENSION - Support compilers where we have a keyword to suppress /// pedantic diagnostics. #ifdef __GNUC__ |
