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src/os_cpu/aix_ppc/vm/atomic_aix_ppc.hpp
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rev 13323 : imported patch Atomic_refactoring
rev 13327 : [mq]: SpecializableAtomic
@@ -30,26 +30,10 @@
#error "Atomic currently only impleneted for PPC64"
#endif
// Implementation of class atomic
-inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; }
-inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; }
-inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; }
-inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; }
-inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; }
-inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; }
-
-inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; }
-inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; }
-inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; }
-inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; }
-inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
-inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; }
-
-inline jlong Atomic::load(const volatile jlong* src) { return *src; }
-
//
// machine barrier instructions:
//
// - ppc_sync two-way memory barrier, aka fence
// - ppc_lwsync orders Store|Store,
@@ -91,12 +75,12 @@
#define strasm_acquire strasm_lwsync
#define strasm_fence strasm_sync
#define strasm_nobarrier ""
#define strasm_nobarrier_clobber_memory ""
-inline jint Atomic::add (jint add_value, volatile jint* dest) {
-
+template <>
+inline int32_t GeneralizedAtomic::specialized_add<int32_t>(int32_t add_value, volatile int32_t* dest) {
unsigned int result;
__asm__ __volatile__ (
strasm_lwsync
"1: lwarx %0, 0, %2 \n"
@@ -106,16 +90,16 @@
strasm_isync
: /*%0*/"=&r" (result)
: /*%1*/"r" (add_value), /*%2*/"r" (dest)
: "cc", "memory" );
- return (jint) result;
+ return (int32_t) result;
}
-inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
-
+template <>
+inline int64_t GeneralizedAtomic::specialized_add<int64_t>(int64_t add_value, volatile int64_t* dest) {
long result;
__asm__ __volatile__ (
strasm_lwsync
"1: ldarx %0, 0, %2 \n"
@@ -125,20 +109,15 @@
strasm_isync
: /*%0*/"=&r" (result)
: /*%1*/"r" (add_value), /*%2*/"r" (dest)
: "cc", "memory" );
- return (intptr_t) result;
+ return (int64_t) result;
}
-inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) {
- return (void*)add_ptr(add_value, (volatile intptr_t*)dest);
-}
-
-
-inline void Atomic::inc (volatile jint* dest) {
-
+template <>
+inline void GeneralizedAtomic::specialized_inc<int32_t>(volatile int32_t* dest) {
unsigned int temp;
__asm__ __volatile__ (
strasm_nobarrier
"1: lwarx %0, 0, %2 \n"
@@ -150,12 +129,12 @@
: /*%2*/"r" (dest), "m" (*dest)
: "cc" strasm_nobarrier_clobber_memory);
}
-inline void Atomic::inc_ptr(volatile intptr_t* dest) {
-
+template <>
+inline void GeneralizedAtomic::specialized_inc<int64_t>(volatile int64_t* dest) {
long temp;
__asm__ __volatile__ (
strasm_nobarrier
"1: ldarx %0, 0, %2 \n"
@@ -167,17 +146,12 @@
: /*%2*/"r" (dest), "m" (*dest)
: "cc" strasm_nobarrier_clobber_memory);
}
-inline void Atomic::inc_ptr(volatile void* dest) {
- inc_ptr((volatile intptr_t*)dest);
-}
-
-
-inline void Atomic::dec (volatile jint* dest) {
-
+template <>
+inline void GeneralizedAtomic::specialized_dec<int32_t>(volatile int32_t* dest) {
unsigned int temp;
__asm__ __volatile__ (
strasm_nobarrier
"1: lwarx %0, 0, %2 \n"
@@ -189,12 +163,12 @@
: /*%2*/"r" (dest), "m" (*dest)
: "cc" strasm_nobarrier_clobber_memory);
}
-inline void Atomic::dec_ptr(volatile intptr_t* dest) {
-
+template <>
+inline void GeneralizedAtomic::specialized_dec<int64_t>(volatile int64_t* dest) {
long temp;
__asm__ __volatile__ (
strasm_nobarrier
"1: ldarx %0, 0, %2 \n"
@@ -206,16 +180,12 @@
: /*%2*/"r" (dest), "m" (*dest)
: "cc" strasm_nobarrier_clobber_memory);
}
-inline void Atomic::dec_ptr(volatile void* dest) {
- dec_ptr((volatile intptr_t*)dest);
-}
-
-inline jint Atomic::xchg(jint exchange_value, volatile jint* dest) {
-
+template <>
+inline int32_t GeneralizedAtomic::specialized_xchg<int32_t>(int32_t exchange_value, volatile int32_t* dest) {
// Note that xchg_ptr doesn't necessarily do an acquire
// (see synchronizer.cpp).
unsigned int old_value;
const uint64_t zero = 0;
@@ -243,15 +213,15 @@
/* clobber */
: "cc",
"memory"
);
- return (jint) old_value;
+ return (int32_t) old_value;
}
-inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
-
+template <>
+inline int64_t GeneralizedAtomic::specialized_xchg<int64_t>(int64_t exchange_value, volatile int64_t* dest) {
// Note that xchg_ptr doesn't necessarily do an acquire
// (see synchronizer.cpp).
long old_value;
const uint64_t zero = 0;
@@ -279,15 +249,11 @@
/* clobber */
: "cc",
"memory"
);
- return (intptr_t) old_value;
-}
-
-inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) {
- return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest);
+ return (int64_t) old_value;
}
inline void cmpxchg_pre_membar(cmpxchg_memory_order order) {
if (order != memory_order_relaxed) {
__asm__ __volatile__ (
@@ -305,12 +271,12 @@
);
}
}
#define VM_HAS_SPECIALIZED_CMPXCHG_BYTE
-inline jbyte Atomic::cmpxchg(jbyte exchange_value, volatile jbyte* dest, jbyte compare_value, cmpxchg_memory_order order) {
-
+template <>
+inline int8_t GeneralizedAtomic::specialized_cmpxchg<int8_t>(int8_t exchange_value, volatile int8_t* dest, int8_t compare_value, cmpxchg_memory_order order) {
// Note that cmpxchg guarantees a two-way memory barrier across
// the cmpxchg, so it's really a a 'fence_cmpxchg_fence' if not
// specified otherwise (see atomic.hpp).
// Using 32 bit internally.
@@ -366,15 +332,15 @@
"memory"
);
cmpxchg_post_membar(order);
- return (jbyte)(unsigned char)old_value;
+ return (int8_t)(unsigned char)old_value;
}
-inline jint Atomic::cmpxchg(jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order) {
-
+template <>
+inline int32_t GeneralizedAtomic::specialized_cmpxchg<int32_t>(int32_t exchange_value, volatile int32_t* dest, int32_t compare_value, cmpxchg_memory_order order) {
// Note that cmpxchg guarantees a two-way memory barrier across
// the cmpxchg, so it's really a a 'fence_cmpxchg_fence' if not
// specified otherwise (see atomic.hpp).
unsigned int old_value;
@@ -410,15 +376,15 @@
"memory"
);
cmpxchg_post_membar(order);
- return (jint) old_value;
+ return (int32_t) old_value;
}
-inline jlong Atomic::cmpxchg(jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order) {
-
+template <>
+inline int64_t GeneralizedAtomic::specialized_cmpxchg<int64_t>(int64_t exchange_value, volatile int64_t* dest, int64_t compare_value, cmpxchg_memory_order order) {
// Note that cmpxchg guarantees a two-way memory barrier across
// the cmpxchg, so it's really a a 'fence_cmpxchg_fence' if not
// specified otherwise (see atomic.hpp).
long old_value;
@@ -454,19 +420,11 @@
"memory"
);
cmpxchg_post_membar(order);
- return (jlong) old_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);
+ return (int64_t) old_value;
}
#undef strasm_sync
#undef strasm_lwsync
#undef strasm_isync
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