Mercurial > hg > truffle
comparison src/share/vm/opto/graphKit.cpp @ 4763:1dc233a8c7fe
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 | 069ab3f976d3 |
| children | b9bc6cae88f2 |
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| 4762:069ab3f976d3 | 4763:1dc233a8c7fe |
|---|---|
| 3335 } | 3335 } |
| 3336 } | 3336 } |
| 3337 return NULL; | 3337 return NULL; |
| 3338 } | 3338 } |
| 3339 | 3339 |
| 3340 // Trace Allocate -> Proj[Parm] -> MemBarStoreStore | |
| 3341 MemBarStoreStoreNode* AllocateNode::storestore() { | |
| 3342 ProjNode* rawoop = proj_out(AllocateNode::RawAddress); | |
| 3343 if (rawoop == NULL) return NULL; | |
| 3344 for (DUIterator_Fast imax, i = rawoop->fast_outs(imax); i < imax; i++) { | |
| 3345 Node* storestore = rawoop->fast_out(i); | |
| 3346 if (storestore->is_MemBarStoreStore()) { | |
| 3347 return storestore->as_MemBarStoreStore(); | |
| 3348 } | |
| 3349 } | |
| 3350 return NULL; | |
| 3351 } | |
| 3352 | |
| 3340 //----------------------------- loop predicates --------------------------- | 3353 //----------------------------- loop predicates --------------------------- |
| 3341 | 3354 |
| 3342 //------------------------------add_predicate_impl---------------------------- | 3355 //------------------------------add_predicate_impl---------------------------- |
| 3343 void GraphKit::add_predicate_impl(Deoptimization::DeoptReason reason, int nargs) { | 3356 void GraphKit::add_predicate_impl(Deoptimization::DeoptReason reason, int nargs) { |
| 3344 // Too many traps seen? | 3357 // Too many traps seen? |