diff options
Diffstat (limited to 'thirdparty/zstd/common/compiler.h')
| -rw-r--r-- | thirdparty/zstd/common/compiler.h | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/thirdparty/zstd/common/compiler.h b/thirdparty/zstd/common/compiler.h index 87bf51ae8c..1877a0c1d9 100644 --- a/thirdparty/zstd/common/compiler.h +++ b/thirdparty/zstd/common/compiler.h @@ -23,7 +23,7 @@ # define INLINE_KEYWORD #endif -#if defined(__GNUC__) +#if defined(__GNUC__) || defined(__ICCARM__) # define FORCE_INLINE_ATTR __attribute__((always_inline)) #elif defined(_MSC_VER) # define FORCE_INLINE_ATTR __forceinline @@ -61,11 +61,18 @@ # define HINT_INLINE static INLINE_KEYWORD FORCE_INLINE_ATTR #endif +/* UNUSED_ATTR tells the compiler it is okay if the function is unused. */ +#if defined(__GNUC__) +# define UNUSED_ATTR __attribute__((unused)) +#else +# define UNUSED_ATTR +#endif + /* force no inlining */ #ifdef _MSC_VER # define FORCE_NOINLINE static __declspec(noinline) #else -# ifdef __GNUC__ +# if defined(__GNUC__) || defined(__ICCARM__) # define FORCE_NOINLINE static __attribute__((__noinline__)) # else # define FORCE_NOINLINE static @@ -76,7 +83,7 @@ #ifndef __has_attribute #define __has_attribute(x) 0 /* Compatibility with non-clang compilers. */ #endif -#if defined(__GNUC__) +#if defined(__GNUC__) || defined(__ICCARM__) # define TARGET_ATTRIBUTE(target) __attribute__((__target__(target))) #else # define TARGET_ATTRIBUTE(target) @@ -127,9 +134,14 @@ } \ } -/* vectorization */ +/* vectorization + * older GCC (pre gcc-4.3 picked as the cutoff) uses a different syntax */ #if !defined(__clang__) && defined(__GNUC__) -# define DONT_VECTORIZE __attribute__((optimize("no-tree-vectorize"))) +# if (__GNUC__ == 4 && __GNUC_MINOR__ > 3) || (__GNUC__ >= 5) +# define DONT_VECTORIZE __attribute__((optimize("no-tree-vectorize"))) +# else +# define DONT_VECTORIZE _Pragma("GCC optimize(\"no-tree-vectorize\")") +# endif #else # define DONT_VECTORIZE #endif |