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7121140: Allocation paths require explicit memory synchronization operations for RMO systems

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Adds store store barrier after initialization of header and body of objects.

Reviewed-by: never, kvn
This commit is contained in:
Roland Westrelin 2011-12-20 16:56:50 +01:00
parent e057d60ca1
commit 97439fb4ff
13 changed files with 196 additions and 7 deletions
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5
hotspot/src/share/vm/opto/node.hpp
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@ -97,6 +97,7 @@ class MachSpillCopyNode;
class MachTempNode;
class Matcher;
class MemBarNode;
class MemBarStoreStoreNode;
class MemNode;
class MergeMemNode;
class MultiNode;
@ -564,7 +565,8 @@ public:
DEFINE_CLASS_ID(NeverBranch, MultiBranch, 2)
DEFINE_CLASS_ID(Start, Multi, 2)
DEFINE_CLASS_ID(MemBar, Multi, 3)
DEFINE_CLASS_ID(Initialize, MemBar, 0)
DEFINE_CLASS_ID(Initialize, MemBar, 0)
DEFINE_CLASS_ID(MemBarStoreStore, MemBar, 1)
DEFINE_CLASS_ID(Mach, Node, 1)
DEFINE_CLASS_ID(MachReturn, Mach, 0)
@ -744,6 +746,7 @@ public:
DEFINE_CLASS_QUERY(MachTemp)
DEFINE_CLASS_QUERY(Mem)
DEFINE_CLASS_QUERY(MemBar)
DEFINE_CLASS_QUERY(MemBarStoreStore)
DEFINE_CLASS_QUERY(MergeMem)
DEFINE_CLASS_QUERY(Multi)
DEFINE_CLASS_QUERY(MultiBranch)