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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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4
hotspot/src/share/vm/adlc/formssel.cpp
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@ -862,8 +862,10 @@ uint InstructForm::oper_input_base(FormDict &globals) {
( strcmp(_matrule->_rChild->_opType,"AryEq" )==0 ||
strcmp(_matrule->_rChild->_opType,"StrComp" )==0 ||
strcmp(_matrule->_rChild->_opType,"StrEquals" )==0 ||
strcmp(_matrule->_rChild->_opType,"StrIndexOf")==0 )) {
strcmp(_matrule->_rChild->_opType,"StrIndexOf")==0 ||
strcmp(_matrule->_rChild->_opType,"EncodeISOArray")==0)) {
// String.(compareTo/equals/indexOf) and Arrays.equals
// and sun.nio.cs.iso8859_1$Encoder.EncodeISOArray
// take 1 control and 1 memory edges.
return 2;
}