--- a/src/hotspot/os_cpu/bsd_x86/atomic_bsd_x86.hpp Tue Oct 03 06:48:40 2017 +0200
+++ b/src/hotspot/os_cpu/bsd_x86/atomic_bsd_x86.hpp Tue Sep 26 21:37:01 2017 +0200
@@ -61,7 +61,11 @@
return old_value;
}
-inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) {
+template<>
+template<typename T>
+inline T Atomic::PlatformXchg<4>::operator()(T exchange_value,
+ T volatile* dest) const {
+ STATIC_ASSERT(4 == sizeof(T));
__asm__ volatile ( "xchgl (%2),%0"
: "=r" (exchange_value)
: "0" (exchange_value), "r" (dest)
@@ -69,10 +73,6 @@
return exchange_value;
}
-inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) {
- return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest);
-}
-
template<>
template<typename T>
inline T Atomic::PlatformCmpxchg<1>::operator()(T exchange_value,
@@ -118,7 +118,11 @@
return old_value;
}
-inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
+template<>
+template<typename T>
+inline T Atomic::PlatformXchg<8>::operator()(T exchange_value,
+ T volatile* dest) const {
+ STATIC_ASSERT(8 == sizeof(T));
__asm__ __volatile__ ("xchgq (%2),%0"
: "=r" (exchange_value)
: "0" (exchange_value), "r" (dest)
@@ -144,10 +148,6 @@
#else // !AMD64
-inline intptr_t Atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) {
- return (intptr_t)xchg((jint)exchange_value, (volatile jint*)dest);
-}
-
extern "C" {
// defined in bsd_x86.s
jlong _Atomic_cmpxchg_long(jlong, volatile jlong*, jlong, bool);