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diff src/cpu/sparc/vm/sparc.ad @ 4763:1dc233a8c7fe

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7121140: Allocation paths require explicit memory synchronization operations for RMO systems Summary: adds store store barrier after initialization of header and body of objects. Reviewed-by: never, kvn
author roland
date Tue, 20 Dec 2011 16:56:50 +0100
parents db2e64ca2d5a
children 5da7201222d5
line wrap: on
line diff
--- a/src/cpu/sparc/vm/sparc.ad	Wed Dec 07 11:35:03 2011 +0100
+++ b/src/cpu/sparc/vm/sparc.ad	Tue Dec 20 16:56:50 2011 +0100
@@ -6773,6 +6773,16 @@
   ins_pipe(empty);
 %}
 
+instruct membar_storestore() %{
+  match(MemBarStoreStore);
+  ins_cost(0);
+
+  size(0);
+  format %{ "!MEMBAR-storestore (empty encoding)" %}
+  ins_encode( );
+  ins_pipe(empty);
+%}
+
 //----------Register Move Instructions-----------------------------------------
 instruct roundDouble_nop(regD dst) %{
   match(Set dst (RoundDouble dst));