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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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2
hotspot/src/share/vm/opto/loopTransform.cpp
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@ -613,6 +613,7 @@ bool IdealLoopTree::policy_maximally_unroll( PhaseIdealLoop *phase ) const {
case Op_StrComp:
case Op_StrEquals:
case Op_StrIndexOf:
case Op_EncodeISOArray:
case Op_AryEq: {
return false;
}
@ -717,6 +718,7 @@ bool IdealLoopTree::policy_unroll( PhaseIdealLoop *phase ) const {
case Op_StrComp:
case Op_StrEquals:
case Op_StrIndexOf:
case Op_EncodeISOArray:
case Op_AryEq: {
// Do not unroll a loop with String intrinsics code.
// String intrinsics are large and have loops.