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Merge pull request #12821 from merryhime/atomic_ops

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atomic_ops: Reduce code duplication with templates
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liamwhite 2024-01-28 15:02:28 -05:00 committed by GitHub
commit 3655115105
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GPG Key ID: B5690EEEBB952194
2 changed files with 33 additions and 52 deletions
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79
src/common/atomic_ops.h
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@ -15,25 +15,34 @@ namespace Common {
#if _MSC_VER
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u8* pointer, u8 value, u8 expected) {
template <typename T>
[[nodiscard]] inline bool AtomicCompareAndSwap(T* pointer, T value, T expected);
template <typename T>
[[nodiscard]] inline bool AtomicCompareAndSwap(T* pointer, T value, T expected, T& actual);
template <>
[[nodiscard]] inline bool AtomicCompareAndSwap<u8>(u8* pointer, u8 value, u8 expected) {
const u8 result =
_InterlockedCompareExchange8(reinterpret_cast<volatile char*>(pointer), value, expected);
return result == expected;
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u16* pointer, u16 value, u16 expected) {
template <>
[[nodiscard]] inline bool AtomicCompareAndSwap<u16>(u16* pointer, u16 value, u16 expected) {
const u16 result =
_InterlockedCompareExchange16(reinterpret_cast<volatile short*>(pointer), value, expected);
return result == expected;
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u32* pointer, u32 value, u32 expected) {
template <>
[[nodiscard]] inline bool AtomicCompareAndSwap<u32>(u32* pointer, u32 value, u32 expected) {
const u32 result =
_InterlockedCompareExchange(reinterpret_cast<volatile long*>(pointer), value, expected);
return result == expected;
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u64* pointer, u64 value, u64 expected) {
template <>
[[nodiscard]] inline bool AtomicCompareAndSwap<u64>(u64* pointer, u64 value, u64 expected) {
const u64 result = _InterlockedCompareExchange64(reinterpret_cast<volatile __int64*>(pointer),
value, expected);
return result == expected;
@ -45,29 +54,32 @@ namespace Common {
reinterpret_cast<__int64*>(expected.data())) != 0;
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u8* pointer, u8 value, u8 expected,
u8& actual) {
template <>
[[nodiscard]] inline bool AtomicCompareAndSwap<u8>(u8* pointer, u8 value, u8 expected, u8& actual) {
actual =
_InterlockedCompareExchange8(reinterpret_cast<volatile char*>(pointer), value, expected);
return actual == expected;
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u16* pointer, u16 value, u16 expected,
u16& actual) {
template <>
[[nodiscard]] inline bool AtomicCompareAndSwap<u16>(u16* pointer, u16 value, u16 expected,
u16& actual) {
actual =
_InterlockedCompareExchange16(reinterpret_cast<volatile short*>(pointer), value, expected);
return actual == expected;
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u32* pointer, u32 value, u32 expected,
u32& actual) {
template <>
[[nodiscard]] inline bool AtomicCompareAndSwap<u32>(u32* pointer, u32 value, u32 expected,
u32& actual) {
actual =
_InterlockedCompareExchange(reinterpret_cast<volatile long*>(pointer), value, expected);
return actual == expected;
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u64* pointer, u64 value, u64 expected,
u64& actual) {
template <>
[[nodiscard]] inline bool AtomicCompareAndSwap<u64>(u64* pointer, u64 value, u64 expected,
u64& actual) {
actual = _InterlockedCompareExchange64(reinterpret_cast<volatile __int64*>(pointer), value,
expected);
return actual == expected;
@ -91,23 +103,12 @@ namespace Common {
#else
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u8* pointer, u8 value, u8 expected) {
template <typename T>
[[nodiscard]] inline bool AtomicCompareAndSwap(T* pointer, T value, T expected) {
return __sync_bool_compare_and_swap(pointer, expected, value);
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u16* pointer, u16 value, u16 expected) {
return __sync_bool_compare_and_swap(pointer, expected, value);
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u32* pointer, u32 value, u32 expected) {
return __sync_bool_compare_and_swap(pointer, expected, value);
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u64* pointer, u64 value, u64 expected) {
return __sync_bool_compare_and_swap(pointer, expected, value);
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u64* pointer, u128 value, u128 expected) {
[[nodiscard]] inline bool AtomicCompareAndSwap(u64* pointer, u128 value, u128 expected) {
unsigned __int128 value_a;
unsigned __int128 expected_a;
std::memcpy(&value_a, value.data(), sizeof(u128));
@ -115,31 +116,13 @@ namespace Common {
return __sync_bool_compare_and_swap((unsigned __int128*)pointer, expected_a, value_a);
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u8* pointer, u8 value, u8 expected,
u8& actual) {
template <typename T>
[[nodiscard]] inline bool AtomicCompareAndSwap(T* pointer, T value, T expected, T& actual) {
actual = __sync_val_compare_and_swap(pointer, expected, value);
return actual == expected;
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u16* pointer, u16 value, u16 expected,
u16& actual) {
actual = __sync_val_compare_and_swap(pointer, expected, value);
return actual == expected;
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u32* pointer, u32 value, u32 expected,
u32& actual) {
actual = __sync_val_compare_and_swap(pointer, expected, value);
return actual == expected;
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u64* pointer, u64 value, u64 expected,
u64& actual) {
actual = __sync_val_compare_and_swap(pointer, expected, value);
return actual == expected;
}
[[nodiscard]] inline bool AtomicCompareAndSwap(volatile u64* pointer, u128 value, u128 expected,
[[nodiscard]] inline bool AtomicCompareAndSwap(u64* pointer, u128 value, u128 expected,
u128& actual) {
unsigned __int128 value_a;
unsigned __int128 expected_a;
@ -151,7 +134,7 @@ namespace Common {
return actual_a == expected_a;
}
[[nodiscard]] inline u128 AtomicLoad128(volatile u64* pointer) {
[[nodiscard]] inline u128 AtomicLoad128(u64* pointer) {
unsigned __int128 zeros_a = 0;
unsigned __int128 result_a =
__sync_val_compare_and_swap((unsigned __int128*)pointer, zeros_a, zeros_a);

6
src/core/memory.cpp
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@ -781,8 +781,7 @@ struct Memory::Impl {
},
[&]() { HandleRasterizerWrite(GetInteger(vaddr), sizeof(T)); });
if (ptr) {
const auto volatile_pointer = reinterpret_cast<volatile T*>(ptr);
return Common::AtomicCompareAndSwap(volatile_pointer, data, expected);
return Common::AtomicCompareAndSwap(reinterpret_cast<T*>(ptr), data, expected);
}
return true;
}
@ -796,8 +795,7 @@ struct Memory::Impl {
},
[&]() { HandleRasterizerWrite(GetInteger(vaddr), sizeof(u128)); });
if (ptr) {
const auto volatile_pointer = reinterpret_cast<volatile u64*>(ptr);
return Common::AtomicCompareAndSwap(volatile_pointer, data, expected);
return Common::AtomicCompareAndSwap(reinterpret_cast<u64*>(ptr), data, expected);
}
return true;
}