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6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86

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Use SSE4.2 and AVX2 instructions for encodeArray intrinsic.

Reviewed-by: roland
This commit is contained in:
Vladimir Kozlov 2013-01-22 15:34:16 -08:00
parent 44cdae9a57
commit 9e0c61f822
19 changed files with 663 additions and 12 deletions
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16
hotspot/src/share/vm/opto/memnode.hpp
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@ -888,6 +888,22 @@ public:
virtual const Type* bottom_type() const { return TypeInt::BOOL; }
};
//------------------------------EncodeISOArray--------------------------------
// encode char[] to byte[] in ISO_8859_1
class EncodeISOArrayNode: public Node {
public:
EncodeISOArrayNode(Node *control, Node* arymem, Node* s1, Node* s2, Node* c): Node(control, arymem, s1, s2, c) {};
virtual int Opcode() const;
virtual bool depends_only_on_test() const { return false; }
virtual const Type* bottom_type() const { return TypeInt::INT; }
virtual const TypePtr* adr_type() const { return TypePtr::BOTTOM; }
virtual uint match_edge(uint idx) const;
virtual uint ideal_reg() const { return Op_RegI; }
virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
virtual const Type *Value(PhaseTransform *phase) const;
};
//------------------------------MemBar-----------------------------------------
// There are different flavors of Memory Barriers to match the Java Memory
// Model. Monitor-enter and volatile-load act as Aquires: no following ref