diff options
Diffstat (limited to 'include/llvm/Support/Compiler.h')
| -rw-r--r-- | include/llvm/Support/Compiler.h | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/include/llvm/Support/Compiler.h b/include/llvm/Support/Compiler.h index e092157..d0b186e 100644 --- a/include/llvm/Support/Compiler.h +++ b/include/llvm/Support/Compiler.h @@ -49,16 +49,22 @@ #define LLVM_ATTRIBUTE_UNUSED #endif -#ifdef __GNUC__ // aka 'ATTRIBUTE_CONST' but following LLVM Conventions. -#define LLVM_ATTRIBUTE_READNONE __attribute__((__const__)) +#if (__GNUC__ >= 4) && !defined(__MINGW32__) && !defined(__CYGWIN__) +#define LLVM_ATTRIBUTE_WEAK __attribute__((__weak__)) #else -#define LLVM_ATTRIBUTE_READNONE +#define LLVM_ATTRIBUTE_WEAK #endif -#ifdef __GNUC__ // aka 'ATTRIBUTE_PURE' but following LLVM Conventions. -#define LLVM_ATTRIBUTE_READONLY __attribute__((__pure__)) +#ifdef __GNUC__ // aka 'CONST' but following LLVM Conventions. +#define LLVM_READNONE __attribute__((__const__)) #else -#define LLVM_ATTRIBUTE_READONLY +#define LLVM_READNONE +#endif + +#ifdef __GNUC__ // aka 'PURE' but following LLVM Conventions. +#define LLVM_READONLY __attribute__((__pure__)) +#else +#define LLVM_READONLY #endif #if (__GNUC__ >= 4) @@ -67,6 +73,7 @@ #define BUILTIN_EXPECT(EXPR, VALUE) (EXPR) #endif + // C++ doesn't support 'extern template' of template specializations. GCC does, // but requires __extension__ before it. In the header, use this: // EXTERN_TEMPLATE_INSTANTIATION(class foo<bar>); @@ -111,6 +118,14 @@ #define LLVM_ATTRIBUTE_NORETURN #endif +// LLVM_EXTENSION - Support compilers where we have a keyword to suppress +// pedantic diagnostics. +#ifdef __GNUC__ +#define LLVM_EXTENSION __extension__ +#else +#define LLVM_EXTENSION +#endif + // LLVM_ATTRIBUTE_DEPRECATED(decl, "message") #if __has_feature(attribute_deprecated_with_message) # define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \ |
