8319777: Zero: Support 8-byte cmpxchg
Reviewed-by: dholmes, stuefe
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@ -145,6 +145,12 @@ void VM_Version::initialize_cpu_information(void) {
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return;
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}
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// Supports 8-byte cmpxchg with compiler built-ins.
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// These built-ins are supposed to be implemented on
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// all platforms (even if not natively), so we claim
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// the support unconditionally.
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_supports_cx8 = true;
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_no_of_cores = os::processor_count();
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_no_of_threads = _no_of_cores;
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_no_of_sockets = _no_of_cores;
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