Mercurial > hg > truffle
diff src/share/vm/classfile/vmSymbols.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 | 75596850f863 |
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--- a/src/share/vm/classfile/vmSymbols.hpp Tue May 05 11:02:10 2009 -0700 +++ b/src/share/vm/classfile/vmSymbols.hpp Wed May 06 00:27:52 2009 -0700 @@ -313,6 +313,8 @@ template(value_name, "value") \ template(frontCacheEnabled_name, "frontCacheEnabled") \ template(stringCacheEnabled_name, "stringCacheEnabled") \ + template(numberOfLeadingZeros_name, "numberOfLeadingZeros") \ + template(numberOfTrailingZeros_name, "numberOfTrailingZeros") \ template(bitCount_name, "bitCount") \ template(profile_name, "profile") \ template(equals_name, "equals") \ @@ -559,6 +561,12 @@ do_intrinsic(_longBitsToDouble, java_lang_Double, longBitsToDouble_name, long_double_signature, F_S) \ do_name( longBitsToDouble_name, "longBitsToDouble") \ \ + do_intrinsic(_numberOfLeadingZeros_i, java_lang_Integer, numberOfLeadingZeros_name,int_int_signature, F_S) \ + do_intrinsic(_numberOfLeadingZeros_l, java_lang_Long, numberOfLeadingZeros_name,long_int_signature, F_S) \ + \ + do_intrinsic(_numberOfTrailingZeros_i, java_lang_Integer, numberOfTrailingZeros_name,int_int_signature, F_S) \ + do_intrinsic(_numberOfTrailingZeros_l, java_lang_Long, numberOfTrailingZeros_name,long_int_signature, F_S) \ + \ do_intrinsic(_bitCount_i, java_lang_Integer, bitCount_name, int_int_signature, F_S) \ do_intrinsic(_bitCount_l, java_lang_Long, bitCount_name, long_int_signature, F_S) \ \