src/cpu/sparc/vm/vm_version_sparc.cpp

rev 9399 : imported patch 8133023_vm_init_before_ergo
rev 9400 : [mq]: delta1

@@ -33,11 +33,14 @@
 int VM_Version::_features = VM_Version::unknown_m;
 const char* VM_Version::_features_str = "";
 unsigned int VM_Version::_L2_data_cache_line_size = 0;
 
 void VM_Version::initialize() {
-  _features = determine_features();
+
+  assert(_features != VM_Version::unknown_m, "System pre-initialization is not complete.");
+  guarantee(VM_Version::has_v9(), "only SPARC v9 is supported");
+
   PrefetchCopyIntervalInBytes = prefetch_copy_interval_in_bytes();
   PrefetchScanIntervalInBytes = prefetch_scan_interval_in_bytes();
   PrefetchFieldsAhead         = prefetch_fields_ahead();
 
   // Allocation prefetch settings

@@ -58,12 +61,10 @@
   if (AllocatePrefetchStyle == 3 && !has_blk_init()) {
     warning("BIS instructions are not available on this CPU");
     FLAG_SET_DEFAULT(AllocatePrefetchStyle, 1);
   }
 
-  guarantee(VM_Version::has_v9(), "only SPARC v9 is supported");
-
   UseSSE = 0; // Only on x86 and x64
 
   _supports_cx8 = has_v9();
   _supports_atomic_getset4 = true; // swap instruction