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Implement atomic_t<>::release

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More relaxed store with release memory order
This commit is contained in:
Nekotekina 2019-01-28 18:39:39 +03:00
parent 50922faac9
commit 2b66abaf10
4 changed files with 60 additions and 26 deletions
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18
rpcs3/Emu/Cell/SPURecompiler.cpp
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@ -543,11 +543,7 @@ void spu_recompiler_base::dispatch(spu_thread& spu, void*, u8* rip)
// If code verification failed from a patched patchpoint, clear it with a single NOP
if (rip)
{
#ifdef _MSC_VER
*(volatile u64*)(rip) = 0x841f0f;
#else
__atomic_store_n(reinterpret_cast<u64*>(rip), 0x841f0f, __ATOMIC_RELAXED);
#endif
atomic_storage<u64>::release(*reinterpret_cast<u64*>(rip), 0x841f0f);
}
// Second attempt (recover from the recursion after repeated unsuccessful trampoline call)
@ -580,7 +576,11 @@ void spu_recompiler_base::branch(spu_thread& spu, void*, u8* rip)
// Overwrite jump to this function with jump to the compiled function
const s64 rel = reinterpret_cast<u64>(func) - reinterpret_cast<u64>(rip) - 5;
alignas(8) u8 bytes[8];
union
{
u8 bytes[8];
u64 result;
};
if (rel >= INT32_MIN && rel <= INT32_MAX)
{
@ -609,11 +609,7 @@ void spu_recompiler_base::branch(spu_thread& spu, void*, u8* rip)
std::memset(bytes + 3, 0x00, 5);
}
#ifdef _MSC_VER
*(volatile u64*)(rip) = *reinterpret_cast<u64*>(+bytes);
#else
__atomic_store_n(reinterpret_cast<u64*>(rip), *reinterpret_cast<u64*>(+bytes), __ATOMIC_RELAXED);
#endif
atomic_storage<u64>::release(*reinterpret_cast<u64*>(rip), result);
}
std::vector<u32> spu_recompiler_base::block(const be_t<u32>* ls, u32 entry_point)