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@@ -1,313 +0,0 @@
-// Protocol Buffers - Google's data interchange format
-// Copyright 2012 Google Inc. All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-// * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// This file is an internal atomic implementation, use atomicops.h instead.
-
-#ifndef GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_MIPS_GCC_H_
-#define GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_MIPS_GCC_H_
-
-#define ATOMICOPS_COMPILER_BARRIER() __asm__ __volatile__("" : : : "memory")
-
-namespace google {
-namespace protobuf {
-namespace internal {
-
-// Atomically execute:
-// result = *ptr;
-// if (*ptr == old_value)
-// *ptr = new_value;
-// return result;
-//
-// I.e., replace "*ptr" with "new_value" if "*ptr" used to be "old_value".
-// Always return the old value of "*ptr"
-//
-// This routine implies no memory barriers.
-inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
- Atomic32 old_value,
- Atomic32 new_value) {
- Atomic32 prev, tmp;
- __asm__ __volatile__(".set push\n"
- ".set noreorder\n"
- "1:\n"
- "ll %0, %5\n" // prev = *ptr
- "bne %0, %3, 2f\n" // if (prev != old_value) goto 2
- "move %2, %4\n" // tmp = new_value
- "sc %2, %1\n" // *ptr = tmp (with atomic check)
- "beqz %2, 1b\n" // start again on atomic error
- "nop\n" // delay slot nop
- "2:\n"
- ".set pop\n"
- : "=&r" (prev), "=m" (*ptr), "=&r" (tmp)
- : "r" (old_value), "r" (new_value), "m" (*ptr)
- : "memory");
- return prev;
-}
-
-// Atomically store new_value into *ptr, returning the previous value held in
-// *ptr. This routine implies no memory barriers.
-inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
- Atomic32 new_value) {
- Atomic32 temp, old;
- __asm__ __volatile__(".set push\n"
- ".set noreorder\n"
- "1:\n"
- "ll %1, %4\n" // old = *ptr
- "move %0, %3\n" // temp = new_value
- "sc %0, %2\n" // *ptr = temp (with atomic check)
- "beqz %0, 1b\n" // start again on atomic error
- "nop\n" // delay slot nop
- ".set pop\n"
- : "=&r" (temp), "=&r" (old), "=m" (*ptr)
- : "r" (new_value), "m" (*ptr)
- : "memory");
-
- return old;
-}
-
-// Atomically increment *ptr by "increment". Returns the new value of
-// *ptr with the increment applied. This routine implies no memory barriers.
-inline Atomic32 NoBarrier_AtomicIncrement(volatile Atomic32* ptr,
- Atomic32 increment) {
- Atomic32 temp, temp2;
-
- __asm__ __volatile__(".set push\n"
- ".set noreorder\n"
- "1:\n"
- "ll %0, %4\n" // temp = *ptr
- "addu %1, %0, %3\n" // temp2 = temp + increment
- "sc %1, %2\n" // *ptr = temp2 (with atomic check)
- "beqz %1, 1b\n" // start again on atomic error
- "addu %1, %0, %3\n" // temp2 = temp + increment
- ".set pop\n"
- : "=&r" (temp), "=&r" (temp2), "=m" (*ptr)
- : "Ir" (increment), "m" (*ptr)
- : "memory");
- // temp2 now holds the final value.
- return temp2;
-}
-
-inline Atomic32 Barrier_AtomicIncrement(volatile Atomic32* ptr,
- Atomic32 increment) {
- ATOMICOPS_COMPILER_BARRIER();
- Atomic32 res = NoBarrier_AtomicIncrement(ptr, increment);
- ATOMICOPS_COMPILER_BARRIER();
- return res;
-}
-
-// "Acquire" operations
-// ensure that no later memory access can be reordered ahead of the operation.
-// "Release" operations ensure that no previous memory access can be reordered
-// after the operation. "Barrier" operations have both "Acquire" and "Release"
-// semantics. A MemoryBarrierInternal() has "Barrier" semantics, but does no
-// memory access.
-inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
- Atomic32 old_value,
- Atomic32 new_value) {
- ATOMICOPS_COMPILER_BARRIER();
- Atomic32 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value);
- ATOMICOPS_COMPILER_BARRIER();
- return res;
-}
-
-inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
- Atomic32 old_value,
- Atomic32 new_value) {
- ATOMICOPS_COMPILER_BARRIER();
- Atomic32 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value);
- ATOMICOPS_COMPILER_BARRIER();
- return res;
-}
-
-inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
- *ptr = value;
-}
-
-inline void MemoryBarrierInternal() {
- __asm__ __volatile__("sync" : : : "memory");
-}
-
-inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) {
- *ptr = value;
- MemoryBarrierInternal();
-}
-
-inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
- MemoryBarrierInternal();
- *ptr = value;
-}
-
-inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
- return *ptr;
-}
-
-inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
- Atomic32 value = *ptr;
- MemoryBarrierInternal();
- return value;
-}
-
-inline Atomic32 Release_Load(volatile const Atomic32* ptr) {
- MemoryBarrierInternal();
- return *ptr;
-}
-
-#if defined(__LP64__)
-// 64-bit versions of the atomic ops.
-
-inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
- Atomic64 old_value,
- Atomic64 new_value) {
- Atomic64 prev, tmp;
- __asm__ __volatile__(".set push\n"
- ".set noreorder\n"
- "1:\n"
- "lld %0, %5\n" // prev = *ptr
- "bne %0, %3, 2f\n" // if (prev != old_value) goto 2
- "move %2, %4\n" // tmp = new_value
- "scd %2, %1\n" // *ptr = tmp (with atomic check)
- "beqz %2, 1b\n" // start again on atomic error
- "nop\n" // delay slot nop
- "2:\n"
- ".set pop\n"
- : "=&r" (prev), "=m" (*ptr), "=&r" (tmp)
- : "r" (old_value), "r" (new_value), "m" (*ptr)
- : "memory");
- return prev;
-}
-
-// Atomically store new_value into *ptr, returning the previous value held in
-// *ptr. This routine implies no memory barriers.
-inline Atomic64 NoBarrier_AtomicExchange(volatile Atomic64* ptr,
- Atomic64 new_value) {
- Atomic64 temp, old;
- __asm__ __volatile__(".set push\n"
- ".set noreorder\n"
- "1:\n"
- "lld %1, %4\n" // old = *ptr
- "move %0, %3\n" // temp = new_value
- "scd %0, %2\n" // *ptr = temp (with atomic check)
- "beqz %0, 1b\n" // start again on atomic error
- "nop\n" // delay slot nop
- ".set pop\n"
- : "=&r" (temp), "=&r" (old), "=m" (*ptr)
- : "r" (new_value), "m" (*ptr)
- : "memory");
-
- return old;
-}
-
-// Atomically increment *ptr by "increment". Returns the new value of
-// *ptr with the increment applied. This routine implies no memory barriers.
-inline Atomic64 NoBarrier_AtomicIncrement(volatile Atomic64* ptr,
- Atomic64 increment) {
- Atomic64 temp, temp2;
-
- __asm__ __volatile__(".set push\n"
- ".set noreorder\n"
- "1:\n"
- "lld %0, %4\n" // temp = *ptr
- "daddu %1, %0, %3\n" // temp2 = temp + increment
- "scd %1, %2\n" // *ptr = temp2 (with atomic check)
- "beqz %1, 1b\n" // start again on atomic error
- "daddu %1, %0, %3\n" // temp2 = temp + increment
- ".set pop\n"
- : "=&r" (temp), "=&r" (temp2), "=m" (*ptr)
- : "Ir" (increment), "m" (*ptr)
- : "memory");
- // temp2 now holds the final value.
- return temp2;
-}
-
-inline Atomic64 Barrier_AtomicIncrement(volatile Atomic64* ptr,
- Atomic64 increment) {
- MemoryBarrierInternal();
- Atomic64 res = NoBarrier_AtomicIncrement(ptr, increment);
- MemoryBarrierInternal();
- return res;
-}
-
-// "Acquire" operations
-// ensure that no later memory access can be reordered ahead of the operation.
-// "Release" operations ensure that no previous memory access can be reordered
-// after the operation. "Barrier" operations have both "Acquire" and "Release"
-// semantics. A MemoryBarrierInternal() has "Barrier" semantics, but does no
-// memory access.
-inline Atomic64 Acquire_CompareAndSwap(volatile Atomic64* ptr,
- Atomic64 old_value,
- Atomic64 new_value) {
- Atomic64 res = NoBarrier_CompareAndSwap(ptr, old_value, new_value);
- MemoryBarrierInternal();
- return res;
-}
-
-inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
- Atomic64 old_value,
- Atomic64 new_value) {
- MemoryBarrierInternal();
- return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
-}
-
-inline void NoBarrier_Store(volatile Atomic64* ptr, Atomic64 value) {
- *ptr = value;
-}
-
-inline void Acquire_Store(volatile Atomic64* ptr, Atomic64 value) {
- *ptr = value;
- MemoryBarrierInternal();
-}
-
-inline void Release_Store(volatile Atomic64* ptr, Atomic64 value) {
- MemoryBarrierInternal();
- *ptr = value;
-}
-
-inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
- return *ptr;
-}
-
-inline Atomic64 Acquire_Load(volatile const Atomic64* ptr) {
- Atomic64 value = *ptr;
- MemoryBarrierInternal();
- return value;
-}
-
-inline Atomic64 Release_Load(volatile const Atomic64* ptr) {
- MemoryBarrierInternal();
- return *ptr;
-}
-#endif
-
-} // namespace internal
-} // namespace protobuf
-} // namespace google
-
-#undef ATOMICOPS_COMPILER_BARRIER
-
-#endif // GOOGLE_PROTOBUF_ATOMICOPS_INTERNALS_MIPS_GCC_H_