diff options
| -rw-r--r-- | llvm/include/llvm/Support/Compiler.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/include/llvm/Support/Compiler.h b/llvm/include/llvm/Support/Compiler.h index 45a70bd815b..fae0d8f4419 100644 --- a/llvm/include/llvm/Support/Compiler.h +++ b/llvm/include/llvm/Support/Compiler.h @@ -274,6 +274,23 @@ # define LLVM_BUILTIN_TRAP *(volatile int*)0x11 = 0 #endif +/// LLVM_BUILTIN_DEBUGTRAP - On compilers which support it, expands to +/// an expression which causes the program to break while running +/// under a debugger. +#if __has_builtin(__builtin_debugtrap) +# define LLVM_BUILTIN_DEBUGTRAP __builtin_debugtrap() +#elif defined(_MSC_VER) +// The __debugbreak intrinsic is supported by MSVC and breaks while +// running under the debugger, and also supports invoking a debugger +// when the OS is configured appropriately. +# define LLVM_BUILTIN_DEBUGTRAP __debugbreak() +#else +// Just continue execution when built with compilers that have no +// support. This is a debugging aid and not intended to force the +// program to abort if encountered. +# define LLVM_BUILTIN_DEBUGTRAP +#endif + /// \macro LLVM_ASSUME_ALIGNED /// \brief Returns a pointer with an assumed alignment. #if __has_builtin(__builtin_assume_aligned) || LLVM_GNUC_PREREQ(4, 7, 0) |
