diff options
| -rwxr-xr-x | configure | 4 | ||||
| -rw-r--r-- | libavutil/atomic_gcc.h | 17 |
2 files changed, 1 insertions, 20 deletions
@@ -1821,7 +1821,6 @@ ARCH_FEATURES=" BUILTIN_LIST=" atomic_cas_ptr - atomic_compare_exchange machine_rw_barrier MemoryBarrier mm_empty @@ -2322,7 +2321,7 @@ symver_if_any="symver_asm_label symver_gnu_asm" valgrind_backtrace_deps="!optimizations valgrind_valgrind_h" # threading support -atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange" +atomics_gcc_if="sync_val_compare_and_swap" atomics_suncc_if="atomic_cas_ptr machine_rw_barrier" atomics_win32_if="MemoryBarrier" atomics_native_if_any="$ATOMICS_LIST" @@ -5533,7 +5532,6 @@ if ! disabled network; then fi check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)" -check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)" check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()" check_builtin MemoryBarrier windows.h "MemoryBarrier()" check_builtin sarestart signal.h "SA_RESTART" diff --git a/libavutil/atomic_gcc.h b/libavutil/atomic_gcc.h index 5f9fc49ba0..2bb43c3cea 100644 --- a/libavutil/atomic_gcc.h +++ b/libavutil/atomic_gcc.h @@ -28,40 +28,27 @@ #define avpriv_atomic_int_get atomic_int_get_gcc static inline int atomic_int_get_gcc(volatile int *ptr) { -#if HAVE_ATOMIC_COMPARE_EXCHANGE - return __atomic_load_n(ptr, __ATOMIC_SEQ_CST); -#else __sync_synchronize(); return *ptr; -#endif } #define avpriv_atomic_int_set atomic_int_set_gcc static inline void atomic_int_set_gcc(volatile int *ptr, int val) { -#if HAVE_ATOMIC_COMPARE_EXCHANGE - __atomic_store_n(ptr, val, __ATOMIC_SEQ_CST); -#else *ptr = val; __sync_synchronize(); -#endif } #define avpriv_atomic_int_add_and_fetch atomic_int_add_and_fetch_gcc static inline int atomic_int_add_and_fetch_gcc(volatile int *ptr, int inc) { -#if HAVE_ATOMIC_COMPARE_EXCHANGE - return __atomic_add_fetch(ptr, inc, __ATOMIC_SEQ_CST); -#else return __sync_add_and_fetch(ptr, inc); -#endif } #define avpriv_atomic_ptr_cas atomic_ptr_cas_gcc static inline void *atomic_ptr_cas_gcc(void * volatile *ptr, void *oldval, void *newval) { -#if HAVE_SYNC_VAL_COMPARE_AND_SWAP #ifdef __ARMCC_VERSION // armcc will throw an error if ptr is not an integer type volatile uintptr_t *tmp = (volatile uintptr_t*)ptr; @@ -69,10 +56,6 @@ static inline void *atomic_ptr_cas_gcc(void * volatile *ptr, #else return __sync_val_compare_and_swap(ptr, oldval, newval); #endif -#else - __atomic_compare_exchange_n(ptr, &oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST); - return oldval; -#endif } #endif /* AVUTIL_ATOMIC_GCC_H */ |