src/hotspot/cpu/x86/globalDefinitions_x86.hpp

rev 55962 : 8229422: Taskqueue: Outdated selection of weak memory model platforms
Reviewed-by:

@@ -31,10 +31,13 @@
 // 32-bit integer argument values are extended to 64 bits.
 const bool CCallingConventionRequiresIntsAsLongs = false;
 
 #define SUPPORTS_NATIVE_CX8
 
+// x86 has this property:
+#define CPU_MULTI_COPY_ATOMIC
+
 // The expected size in bytes of a cache line, used to pad data structures.
 #if defined(TIERED)
   #ifdef _LP64
     // tiered, 64-bit, large machine
     #define DEFAULT_CACHE_LINE_SIZE 128