Mercurial > hg > truffle
diff src/share/vm/adlc/formssel.cpp @ 681:fbde8ec322d0
6761600: Use sse 4.2 in intrinsics
Summary: Use SSE 4.2 in intrinsics for String.{compareTo/equals/indexOf} and Arrays.equals.
Reviewed-by: kvn, never, jrose
| author | cfang |
|---|---|
| date | Tue, 31 Mar 2009 14:07:08 -0700 |
| parents | 7bb995fbd3c0 |
| children | f9094a5e1c8a |
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--- a/src/share/vm/adlc/formssel.cpp Tue Mar 31 10:02:01 2009 -0700 +++ b/src/share/vm/adlc/formssel.cpp Tue Mar 31 14:07:08 2009 -0700 @@ -574,9 +574,13 @@ // TEMPORARY // if( is_simple_chain_rule(globals) ) return false; - // String-compare uses many memorys edges, but writes none + // String.(compareTo/equals/indexOf) and Arrays.equals use many memorys edges, + // but writes none if( _matrule && _matrule->_rChild && - strcmp(_matrule->_rChild->_opType,"StrComp")==0 ) + ( strcmp(_matrule->_rChild->_opType,"StrComp" )==0 || + strcmp(_matrule->_rChild->_opType,"StrEquals" )==0 || + strcmp(_matrule->_rChild->_opType,"StrIndexOf" )==0 || + strcmp(_matrule->_rChild->_opType,"AryEq" )==0 )) return true; // Check if instruction has a USE of a memory operand class, but no defs @@ -815,8 +819,10 @@ return AdlcVMDeps::Parms; // Skip the machine-state edges if( _matrule->_rChild && - strcmp(_matrule->_rChild->_opType,"StrComp")==0 ) { - // String compare takes 1 control and 4 memory edges. + ( strcmp(_matrule->_rChild->_opType,"StrComp" )==0 || + strcmp(_matrule->_rChild->_opType,"StrEquals" )==0 || + strcmp(_matrule->_rChild->_opType,"StrIndexOf")==0 )) { + // String.(compareTo/equals/indexOf) take 1 control and 4 memory edges. return 5; }