diff options
| author | Rickard Green <[email protected]> | 2011-12-16 13:02:09 +0100 |
|---|---|---|
| committer | Rickard Green <[email protected]> | 2012-04-16 16:32:28 +0200 |
| commit | 414f4fb8dc9a188f8148a1f92e5f9125108e170d (patch) | |
| tree | 319b52ff0171a0f3bec1deb63407caaefe095ab5 /erts/emulator/beam/sys.h | |
| parent | 3e454414a40bba082e5dc0be310f71843200dcf4 (diff) | |
| download | otp-414f4fb8dc9a188f8148a1f92e5f9125108e170d.tar.gz otp-414f4fb8dc9a188f8148a1f92e5f9125108e170d.tar.bz2 otp-414f4fb8dc9a188f8148a1f92e5f9125108e170d.zip | |
Optimize process table access
Diffstat (limited to 'erts/emulator/beam/sys.h')
| -rw-r--r-- | erts/emulator/beam/sys.h | 45 |
1 files changed, 30 insertions, 15 deletions
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h index 7b2bb81f62..0d3b910278 100644 --- a/erts/emulator/beam/sys.h +++ b/erts/emulator/beam/sys.h @@ -39,6 +39,8 @@ #define ENABLE_CHILD_WAITER_THREAD 1 #endif +#define ERTS_I64_LITERAL(X) X##LL + #if defined (__WIN32__) # include "erl_win_sys.h" #elif defined (VXWORKS) @@ -91,14 +93,22 @@ typedef ERTS_SYS_FD_TYPE ErtsSysFdType; # endif #endif -#ifdef __GNUC__ -# if __GNUC__ < 3 && (__GNUC__ != 2 || __GNUC_MINOR__ < 96) -# define ERTS_LIKELY(BOOL) (BOOL) -# define ERTS_UNLIKELY(BOOL) (BOOL) -# else -# define ERTS_LIKELY(BOOL) __builtin_expect((BOOL), !0) -# define ERTS_UNLIKELY(BOOL) __builtin_expect((BOOL), 0) -# endif +#if !defined(__GNUC__) +# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) 0 +#elif !defined(__GNUC_MINOR__) +# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) \ + ((__GNUC__ << 24) >= (((MAJ) << 24) | ((MIN) << 12) | (PL))) +#elif !defined(__GNUC_PATCHLEVEL__) +# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) \ + (((__GNUC__ << 24) | (__GNUC_MINOR__ << 12)) >= (((MAJ) << 24) | ((MIN) << 12) | (PL))) +#else +# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) \ + (((__GNUC__ << 24) | (__GNUC_MINOR__ << 12) | __GNUC_PATCHLEVEL__) >= (((MAJ) << 24) | ((MIN) << 12) | (PL))) +#endif + +#if ERTS_AT_LEAST_GCC_VSN__(2, 96, 0) +# define ERTS_LIKELY(BOOL) __builtin_expect((BOOL), !0) +# define ERTS_UNLIKELY(BOOL) __builtin_expect((BOOL), 0) #else # define ERTS_LIKELY(BOOL) (BOOL) # define ERTS_UNLIKELY(BOOL) (BOOL) @@ -178,6 +188,18 @@ int real_printf(const char *fmt, ...); # define printf real_printf #endif +#undef __deprecated +#if ERTS_AT_LEAST_GCC_VSN__(3, 0, 0) +# define __deprecated __attribute__((deprecated)) +#else +# define __deprecated +#endif +#if ERTS_AT_LEAST_GCC_VSN__(3, 0, 4) +# define erts_align_attribute(SZ) __attribute__ ((aligned (SZ))) +#else +# define erts_align_attribute(SZ) +#endif + /* In VC++, noreturn is a declspec that has to be before the types, * but in GNUC it is an att ribute to be placed between return type * and function name, hence __decl_noreturn <types> __noreturn <function name> @@ -185,12 +207,6 @@ int real_printf(const char *fmt, ...); #if __GNUC__ # define __decl_noreturn # define __noreturn __attribute__((noreturn)) -# undef __deprecated -# if __GNUC__ >= 3 -# define __deprecated __attribute__((deprecated)) -# else -# define __deprecated -# endif #else # if defined(__WIN32__) && defined(_MSC_VER) # define __noreturn @@ -199,7 +215,6 @@ int real_printf(const char *fmt, ...); # define __noreturn # define __decl_noreturn # endif -# define __deprecated #endif /* |