Commit 952a943a authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont

Use GCC predefines for atomic builtins

parent 1c6ba8c0
......@@ -76,12 +76,6 @@
# include <hal/libhal.h>
#endif
#if defined(__GNUC__)
#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)
#define USE_SYNC
#endif
#endif
#include <vlc_playlist.h>
#include <vlc_interface.h>
......@@ -131,8 +125,9 @@ void *vlc_gc_init (gc_object_t *p_gc, void (*pf_destruct) (gc_object_t *))
p_gc->pf_destructor = pf_destruct;
p_gc->refs = 1;
#ifdef USE_SYNC
#if defined (__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
__sync_synchronize ();
#elif defined (WIN32)
#elif defined(__APPLE__)
OSMemoryBarrier ();
#else
......@@ -154,13 +149,13 @@ void *vlc_hold (gc_object_t * p_gc)
uintptr_t refs;
assert( p_gc );
#if defined (WIN32)
#if defined (__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
refs = __sync_fetch_and_add (&p_gc->refs, 1);
#elif defined (WIN32)
refs = -1 +
__builtin_choose_expr (sizeof (uintptr_t) == 4,
InterlockedIncrement (&p_gc->refs),
InterlockedIncrement64 (&p_gc->refs));
#elif defined (USE_SYNC)
refs = __sync_fetch_and_add (&p_gc->refs, 1);
#elif defined(__APPLE__)
refs = OSAtomicIncrement32Barrier((int*)&p_gc->refs) - 1;
#else
......@@ -182,13 +177,13 @@ void vlc_release (gc_object_t *p_gc)
assert( p_gc );
#if defined (WIN32)
#if defined (__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
refs = __sync_fetch_and_sub (&p_gc->refs, 1);
#elif defined (WIN32)
refs = 1 +
__builtin_choose_expr (sizeof (uintptr_t) == 4,
InterlockedDecrement (&p_gc->refs),
InterlockedDecrement64 (&p_gc->refs));
#elif defined (USE_SYNC)
refs = __sync_fetch_and_sub (&p_gc->refs, 1);
#elif defined(__APPLE__)
refs = OSAtomicDecrement32Barrier((int*)&p_gc->refs) + 1;
#else
......
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