diff options
Diffstat (limited to 'src/google/protobuf/stubs/atomicops_internals_tile_gcc.h')
-rw-r--r-- | src/google/protobuf/stubs/atomicops_internals_tile_gcc.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/google/protobuf/stubs/atomicops_internals_tile_gcc.h b/src/google/protobuf/stubs/atomicops_internals_tile_gcc.h new file mode 100644 index 00000000..6e5418a4 --- /dev/null +++ b/src/google/protobuf/stubs/atomicops_internals_tile_gcc.h @@ -0,0 +1,77 @@ +#ifndef GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_ARM64_GCC_H_ +#define GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_ARM64_GCC_H_ + +namespace google { +namespace protobuf { +namespace internal { + +inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) { + asm volatile ("st4 %0, %1" + : "=r" (*ptr) + : "m" (value)); +} + +inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) { + Atomic32 dest; + asm volatile ("ld4s %0, %1" + : "=r" (dest) + : "m" (*ptr)); + return dest; +} + +inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) { + asm volatile ("st %0, %1" + : "=r" (*ptr) + : "m" (value)); +} + +inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) { + Atomic64 dest; + asm volatile ("ld %0, %1" + : "=r" (dest) + : "m" (*ptr)); + return dest; +} + +inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) { + return NoBarrier_Load(ptr); +} + +inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) { + NoBarrier_Store(ptr, value); +} + +inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr, + Atomic64 old_value, + Atomic64 new_value) { + Atomic64 tmp; + asm volatile ("mtspr CMPEXCH_VALUE, %3\n\t" + "cmpexch %0, %1, %2" + : "=r" (tmp), "=m" (*ptr) + : "r" (new_value), "r" (old_value)); + return tmp; +} + +inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr, + Atomic64 new_value) { + Atomic64 old_value; + asm volatile ("exch %0, %1, %2" + : "=r" (old_value), "=m" (*ptr) + : "r" (new_value)); + return old_value; +} + +inline Atomic64 NoBarrier_AtomicIncrement(volatile Atomic64* ptr, + Atomic64 value) { + Atomic64 dest; + asm volatile ("fetchadd %0, %1, %2" + : "=r" (dest), "=m" (*ptr) + : "r" (value)); + return *ptr; +} + +} +} +} + +#endif |