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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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20
hotspot/src/share/vm/opto/memnode.cpp
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@ -2796,6 +2796,26 @@ const Type *StrIntrinsicNode::Value( PhaseTransform *phase ) const {
return bottom_type();
}
//=============================================================================
//------------------------------match_edge-------------------------------------
// Do not match memory edge
uint EncodeISOArrayNode::match_edge(uint idx) const {
return idx == 2 || idx == 3; // EncodeISOArray src (Binary dst len)
}
//------------------------------Ideal------------------------------------------
// Return a node which is more "ideal" than the current node. Strip out
// control copies
Node *EncodeISOArrayNode::Ideal(PhaseGVN *phase, bool can_reshape) {
return remove_dead_region(phase, can_reshape) ? this : NULL;
}
//------------------------------Value------------------------------------------
const Type *EncodeISOArrayNode::Value(PhaseTransform *phase) const {
if (in(0) && phase->type(in(0)) == Type::TOP) return Type::TOP;
return bottom_type();
}
//=============================================================================
MemBarNode::MemBarNode(Compile* C, int alias_idx, Node* precedent)
: MultiNode(TypeFunc::Parms + (precedent == NULL? 0: 1)),