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src/os_cpu/windows_x86/vm/atomic_windows_x86.inline.hpp
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rev 11110 : 8155949: Support relaxed semantics in cmpxchg
Reviewed-by:
Contributed-by: HORII@jp.ibm.com, mdoerr
*** 117,145 ****
inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) {
return (void *)(os::atomic_xchg_ptr_func)((intptr_t)exchange_value, (volatile intptr_t*)dest);
}
! inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) {
return (*os::atomic_cmpxchg_func)(exchange_value, dest, compare_value);
}
#define VM_HAS_SPECIALIZED_CMPXCHG_BYTE
! inline jbyte Atomic::cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value) {
return (*os::atomic_cmpxchg_byte_func)(exchange_value, dest, compare_value);
}
! inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) {
return (*os::atomic_cmpxchg_long_func)(exchange_value, dest, compare_value);
}
! inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {
! return (intptr_t)cmpxchg((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value);
}
! inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) {
! return (void*)cmpxchg((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value);
}
inline jlong Atomic::load(volatile jlong* src) { return *src; }
#else // !AMD64
--- 117,145 ----
inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) {
return (void *)(os::atomic_xchg_ptr_func)((intptr_t)exchange_value, (volatile intptr_t*)dest);
}
! inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order) {
return (*os::atomic_cmpxchg_func)(exchange_value, dest, compare_value);
}
#define VM_HAS_SPECIALIZED_CMPXCHG_BYTE
! inline jbyte Atomic::cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value, cmpxchg_memory_order order) {
return (*os::atomic_cmpxchg_byte_func)(exchange_value, dest, compare_value);
}
! inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order) {
return (*os::atomic_cmpxchg_long_func)(exchange_value, dest, compare_value);
}
! inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value, cmpxchg_memory_order order) {
! return (intptr_t)cmpxchg((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value, order);
}
! inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value, cmpxchg_memory_order order) {
! return (void*)cmpxchg((jlong)exchange_value, (volatile jlong*)dest, (jlong)compare_value, order);
}
inline jlong Atomic::load(volatile jlong* src) { return *src; }
#else // !AMD64
*** 216,226 ****
inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) {
return (void*)xchg((jint)exchange_value, (volatile jint*)dest);
}
#define VM_HAS_SPECIALIZED_CMPXCHG_BYTE
! inline jbyte Atomic::cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value) {
// alternative for InterlockedCompareExchange
int mp = os::is_MP();
__asm {
mov edx, dest
mov cl, exchange_value
--- 216,226 ----
inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) {
return (void*)xchg((jint)exchange_value, (volatile jint*)dest);
}
#define VM_HAS_SPECIALIZED_CMPXCHG_BYTE
! inline jbyte Atomic::cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value, cmpxchg_memory_order order) {
// alternative for InterlockedCompareExchange
int mp = os::is_MP();
__asm {
mov edx, dest
mov cl, exchange_value
*** 228,238 ****
LOCK_IF_MP(mp)
cmpxchg byte ptr [edx], cl
}
}
! inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value) {
// alternative for InterlockedCompareExchange
int mp = os::is_MP();
__asm {
mov edx, dest
mov ecx, exchange_value
--- 228,238 ----
LOCK_IF_MP(mp)
cmpxchg byte ptr [edx], cl
}
}
! inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order) {
// alternative for InterlockedCompareExchange
int mp = os::is_MP();
__asm {
mov edx, dest
mov ecx, exchange_value
*** 240,250 ****
LOCK_IF_MP(mp)
cmpxchg dword ptr [edx], ecx
}
}
! inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value) {
int mp = os::is_MP();
jint ex_lo = (jint)exchange_value;
jint ex_hi = *( ((jint*)&exchange_value) + 1 );
jint cmp_lo = (jint)compare_value;
jint cmp_hi = *( ((jint*)&compare_value) + 1 );
--- 240,250 ----
LOCK_IF_MP(mp)
cmpxchg dword ptr [edx], ecx
}
}
! inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order) {
int mp = os::is_MP();
jint ex_lo = (jint)exchange_value;
jint ex_hi = *( ((jint*)&exchange_value) + 1 );
jint cmp_lo = (jint)compare_value;
jint cmp_hi = *( ((jint*)&compare_value) + 1 );
*** 261,276 ****
pop edi
pop ebx
}
}
! inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value) {
! return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);
}
! inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value) {
! return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value);
}
inline jlong Atomic::load(volatile jlong* src) {
volatile jlong dest;
volatile jlong* pdest = &dest;
--- 261,276 ----
pop edi
pop ebx
}
}
! inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value, cmpxchg_memory_order order) {
! return (intptr_t)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value, order);
}
! inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value, cmpxchg_memory_order order) {
! return (void*)cmpxchg((jint)exchange_value, (volatile jint*)dest, (jint)compare_value, order);
}
inline jlong Atomic::load(volatile jlong* src) {
volatile jlong dest;
volatile jlong* pdest = &dest;
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