Mercurial > hg > truffle
comparison src/share/vm/opto/memnode.cpp @ 6795:7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
Summary: use shorter instruction sequences for atomic add and atomic exchange when possible.
Reviewed-by: kvn, jrose
| author | roland |
|---|---|
| date | Thu, 20 Sep 2012 16:49:17 +0200 |
| parents | da91efe96a93 |
| children | e626685e9f6c |
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| 6794:8ae8f9dd7099 | 6795:7eca5de9e0b6 |
|---|---|
| 2550 { | 2550 { |
| 2551 return bottom_type(); | 2551 return bottom_type(); |
| 2552 } | 2552 } |
| 2553 | 2553 |
| 2554 //============================================================================= | 2554 //============================================================================= |
| 2555 LoadStoreNode::LoadStoreNode( Node *c, Node *mem, Node *adr, Node *val, Node *ex ) : Node(5) { | 2555 //----------------------------------LoadStoreNode------------------------------ |
| 2556 LoadStoreNode::LoadStoreNode( Node *c, Node *mem, Node *adr, Node *val, const TypePtr* at, const Type* rt, uint required ) | |
| 2557 : Node(required), | |
| 2558 _type(rt), | |
| 2559 _adr_type(at) | |
| 2560 { | |
| 2556 init_req(MemNode::Control, c ); | 2561 init_req(MemNode::Control, c ); |
| 2557 init_req(MemNode::Memory , mem); | 2562 init_req(MemNode::Memory , mem); |
| 2558 init_req(MemNode::Address, adr); | 2563 init_req(MemNode::Address, adr); |
| 2559 init_req(MemNode::ValueIn, val); | 2564 init_req(MemNode::ValueIn, val); |
| 2560 init_req( ExpectedIn, ex ); | |
| 2561 init_class_id(Class_LoadStore); | 2565 init_class_id(Class_LoadStore); |
| 2562 | 2566 } |
| 2567 | |
| 2568 uint LoadStoreNode::ideal_reg() const { | |
| 2569 return _type->ideal_reg(); | |
| 2570 } | |
| 2571 | |
| 2572 bool LoadStoreNode::result_not_used() const { | |
| 2573 for( DUIterator_Fast imax, i = fast_outs(imax); i < imax; i++ ) { | |
| 2574 Node *x = fast_out(i); | |
| 2575 if (x->Opcode() == Op_SCMemProj) continue; | |
| 2576 return false; | |
| 2577 } | |
| 2578 return true; | |
| 2579 } | |
| 2580 | |
| 2581 uint LoadStoreNode::size_of() const { return sizeof(*this); } | |
| 2582 | |
| 2583 //============================================================================= | |
| 2584 //----------------------------------LoadStoreConditionalNode-------------------- | |
| 2585 LoadStoreConditionalNode::LoadStoreConditionalNode( Node *c, Node *mem, Node *adr, Node *val, Node *ex ) : LoadStoreNode(c, mem, adr, val, NULL, TypeInt::BOOL, 5) { | |
| 2586 init_req(ExpectedIn, ex ); | |
| 2563 } | 2587 } |
| 2564 | 2588 |
| 2565 //============================================================================= | 2589 //============================================================================= |
| 2566 //-------------------------------adr_type-------------------------------------- | 2590 //-------------------------------adr_type-------------------------------------- |
| 2567 // Do we Match on this edge index or not? Do not match memory | 2591 // Do we Match on this edge index or not? Do not match memory |