Mercurial > hg > truffle
diff src/share/vm/runtime/globals.hpp @ 775:93c14e5562c4
6823354: Add intrinsics for {Integer,Long}.{numberOfLeadingZeros,numberOfTrailingZeros}()
Summary: These methods can be instrinsified by using bit scan, bit test, and population count instructions.
Reviewed-by: kvn, never
author | twisti |
---|---|
date | Wed, 06 May 2009 00:27:52 -0700 |
parents | be93aad57795 |
children | d0e0d6d824d8 |
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--- a/src/share/vm/runtime/globals.hpp Tue May 05 11:02:10 2009 -0700 +++ b/src/share/vm/runtime/globals.hpp Wed May 06 00:27:52 2009 -0700 @@ -2185,6 +2185,9 @@ diagnostic(bool, PrintIntrinsics, false, \ "prints attempted and successful inlining of intrinsics") \ \ + product(bool, UseCountLeadingZerosInstruction, false, \ + "Use count leading zeros instruction") \ + \ product(bool, UsePopCountInstruction, false, \ "Use population count instruction") \ \