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src/share/vm/runtime/atomic.hpp

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*** 151,161 **** */ inline jbyte Atomic::cmpxchg(jbyte exchange_value, volatile jbyte* dest, jbyte compare_value, cmpxchg_memory_order order) { STATIC_ASSERT(sizeof(jbyte) == 1); volatile jint* dest_int = ! reinterpret_cast<volatile jint*>(align_ptr_down(dest, sizeof(jint))); size_t offset = pointer_delta(dest, dest_int, 1); jint cur = *dest_int; jbyte* cur_as_bytes = reinterpret_cast<jbyte*>(&cur); // current value may not be what we are looking for, so force it --- 151,161 ---- */ inline jbyte Atomic::cmpxchg(jbyte exchange_value, volatile jbyte* dest, jbyte compare_value, cmpxchg_memory_order order) { STATIC_ASSERT(sizeof(jbyte) == 1); volatile jint* dest_int = ! reinterpret_cast<volatile jint*>(align_down(dest, sizeof(jint))); size_t offset = pointer_delta(dest, dest_int, 1); jint cur = *dest_int; jbyte* cur_as_bytes = reinterpret_cast<jbyte*>(&cur); // current value may not be what we are looking for, so force it
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