--- a/hotspot/src/share/vm/opto/memnode.hpp Mon May 05 15:10:43 2014 +0200
+++ b/hotspot/src/share/vm/opto/memnode.hpp Tue May 06 09:17:57 2014 +0200
@@ -332,7 +332,7 @@
virtual uint ideal_reg() const { return Op_RegL; }
virtual int store_Opcode() const { return Op_StoreL; }
virtual BasicType memory_type() const { return T_LONG; }
- bool require_atomic_access() { return _require_atomic_access; }
+ bool require_atomic_access() const { return _require_atomic_access; }
static LoadLNode* make_atomic(Compile *C, Node* ctl, Node* mem, Node* adr, const TypePtr* adr_type,
const Type* rt, MemOrd mo);
#ifndef PRODUCT
@@ -367,13 +367,31 @@
//------------------------------LoadDNode--------------------------------------
// Load a double (64 bits) from memory
class LoadDNode : public LoadNode {
+ virtual uint hash() const { return LoadNode::hash() + _require_atomic_access; }
+ virtual uint cmp( const Node &n ) const {
+ return _require_atomic_access == ((LoadDNode&)n)._require_atomic_access
+ && LoadNode::cmp(n);
+ }
+ virtual uint size_of() const { return sizeof(*this); }
+ const bool _require_atomic_access; // is piecewise load forbidden?
+
public:
- LoadDNode(Node *c, Node *mem, Node *adr, const TypePtr* at, const Type *t, MemOrd mo)
- : LoadNode(c, mem, adr, at, t, mo) {}
+ LoadDNode(Node *c, Node *mem, Node *adr, const TypePtr* at, const Type *t,
+ MemOrd mo, bool require_atomic_access = false)
+ : LoadNode(c, mem, adr, at, t, mo), _require_atomic_access(require_atomic_access) {}
virtual int Opcode() const;
virtual uint ideal_reg() const { return Op_RegD; }
virtual int store_Opcode() const { return Op_StoreD; }
virtual BasicType memory_type() const { return T_DOUBLE; }
+ bool require_atomic_access() const { return _require_atomic_access; }
+ static LoadDNode* make_atomic(Compile *C, Node* ctl, Node* mem, Node* adr, const TypePtr* adr_type,
+ const Type* rt, MemOrd mo);
+#ifndef PRODUCT
+ virtual void dump_spec(outputStream *st) const {
+ LoadNode::dump_spec(st);
+ if (_require_atomic_access) st->print(" Atomic!");
+ }
+#endif
};
//------------------------------LoadD_unalignedNode----------------------------
@@ -574,7 +592,7 @@
: StoreNode(c, mem, adr, at, val, mo), _require_atomic_access(require_atomic_access) {}
virtual int Opcode() const;
virtual BasicType memory_type() const { return T_LONG; }
- bool require_atomic_access() { return _require_atomic_access; }
+ bool require_atomic_access() const { return _require_atomic_access; }
static StoreLNode* make_atomic(Compile *C, Node* ctl, Node* mem, Node* adr, const TypePtr* adr_type, Node* val, MemOrd mo);
#ifndef PRODUCT
virtual void dump_spec(outputStream *st) const {
@@ -597,11 +615,28 @@
//------------------------------StoreDNode-------------------------------------
// Store double to memory
class StoreDNode : public StoreNode {
+ virtual uint hash() const { return StoreNode::hash() + _require_atomic_access; }
+ virtual uint cmp( const Node &n ) const {
+ return _require_atomic_access == ((StoreDNode&)n)._require_atomic_access
+ && StoreNode::cmp(n);
+ }
+ virtual uint size_of() const { return sizeof(*this); }
+ const bool _require_atomic_access; // is piecewise store forbidden?
public:
- StoreDNode(Node *c, Node *mem, Node *adr, const TypePtr* at, Node *val, MemOrd mo)
- : StoreNode(c, mem, adr, at, val, mo) {}
+ StoreDNode(Node *c, Node *mem, Node *adr, const TypePtr* at, Node *val,
+ MemOrd mo, bool require_atomic_access = false)
+ : StoreNode(c, mem, adr, at, val, mo), _require_atomic_access(require_atomic_access) {}
virtual int Opcode() const;
virtual BasicType memory_type() const { return T_DOUBLE; }
+ bool require_atomic_access() const { return _require_atomic_access; }
+ static StoreDNode* make_atomic(Compile *C, Node* ctl, Node* mem, Node* adr, const TypePtr* adr_type, Node* val, MemOrd mo);
+#ifndef PRODUCT
+ virtual void dump_spec(outputStream *st) const {
+ StoreNode::dump_spec(st);
+ if (_require_atomic_access) st->print(" Atomic!");
+ }
+#endif
+
};
//------------------------------StorePNode-------------------------------------