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Initial support for HLE in internal API

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atomic_storage<>: add compare_exchange_hle_acq and fetch_add_hle_rel
shared_mutex: add methods (un)lock_hle and (un)lock_shared_hle
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This commit is contained in:
Nekotekina
2019-01-29 03:29:31 +03:00
parent 58358e85dd
commit f50d9cc136
2 changed files with 95 additions and 0 deletions
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Utilities/Atomic.h
+49
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@@ -12,11 +12,26 @@ struct atomic_storage
/* First part: Non-MSVC intrinsics */
#ifndef _MSC_VER
#if defined(__ATOMIC_HLE_ACQUIRE) && defined(__ATOMIC_HLE_RELEASE)
static constexpr int s_hle_ack = __ATOMIC_SEQ_CST | __ATOMIC_HLE_ACQUIRE;
static constexpr int s_hle_rel = __ATOMIC_SEQ_CST | __ATOMIC_HLE_RELEASE;
#else
static constexpr int s_hle_ack = __ATOMIC_SEQ_CST;
static constexpr int s_hle_rel = __ATOMIC_SEQ_CST;
#endif
static inline bool compare_exchange(T& dest, T& comp, T exch)
{
return __atomic_compare_exchange(&dest, &comp, &exch, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
}
static inline bool compare_exchange_hle_acq(T& dest, T& comp, T exch)
{
static_assert(sizeof(T) == 4 || sizeof(T) == 8);
return __atomic_compare_exchange(&dest, &comp, &exch, false, s_hle_ack, s_hle_ack);
}
static inline T load(const T& dest)
{
T result;
@@ -46,6 +61,12 @@ struct atomic_storage
return __atomic_fetch_add(&dest, value, __ATOMIC_SEQ_CST);
}
static inline T fetch_add_hle_rel(T& dest, T value)
{
static_assert(sizeof(T) == 4 || sizeof(T) == 8);
return __atomic_fetch_add(&dest, value, s_hle_rel);
}
static inline T add_fetch(T& dest, T value)
{
return __atomic_add_fetch(&dest, value, __ATOMIC_SEQ_CST);
@@ -353,6 +374,14 @@ struct atomic_storage<T, 4> : atomic_storage<T, 0>
return r == v;
}
static inline bool compare_exchange_hle_acq(T& dest, T& comp, T exch)
{
long v = *(long*)&comp;
long r = _InterlockedCompareExchange_HLEAcquire((volatile long*)&dest, (long&)exch, v);
comp = (T&)r;
return r == v;
}
static inline T load(const T& dest)
{
long value = *(const volatile long*)&dest;
@@ -383,6 +412,12 @@ struct atomic_storage<T, 4> : atomic_storage<T, 0>
return (T&)r;
}
static inline T fetch_add_hle_rel(T& dest, T value)
{
long r = _InterlockedExchangeAdd_HLERelease((volatile long*)&dest, (long&)value);
return (T&)r;
}
static inline T fetch_and(T& dest, T value)
{
long r = _InterlockedAnd((volatile long*)&dest, (long&)value);
@@ -458,6 +493,14 @@ struct atomic_storage<T, 8> : atomic_storage<T, 0>
return r == v;
}
static inline bool compare_exchange_hle_acq(T& dest, T& comp, T exch)
{
llong v = *(llong*)&comp;
llong r = _InterlockedCompareExchange64_HLEAcquire((volatile llong*)&dest, (llong&)exch, v);
comp = (T&)r;
return r == v;
}
static inline T load(const T& dest)
{
llong value = *(const volatile llong*)&dest;
@@ -488,6 +531,12 @@ struct atomic_storage<T, 8> : atomic_storage<T, 0>
return (T&)r;
}
static inline T fetch_add_hle_rel(T& dest, T value)
{
llong r = _InterlockedExchangeAdd64_HLERelease((volatile llong*)&dest, (llong&)value);
return (T&)r;
}
static inline T fetch_and(T& dest, T value)
{
llong r = _InterlockedAnd64((volatile llong*)&dest, (llong&)value);