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8193085: Vectorize the nio Buffer equals and compareTo implementations

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Reviewed-by: alanb
This commit is contained in:
Paul Sandoz 2017-12-20 09:14:52 -08:00
parent 038b5f571c
commit fb9db6b02d
13 changed files with 1122 additions and 195 deletions
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26
src/java.base/share/classes/java/nio/StringCharBuffer.java
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@ -127,4 +127,30 @@ class StringCharBuffer // package-private
return ByteOrder.nativeOrder();
}
ByteOrder charRegionOrder() {
return null;
}
public boolean equals(Object ob) {
if (this == ob)
return true;
if (!(ob instanceof CharBuffer))
return false;
CharBuffer that = (CharBuffer)ob;
if (this.remaining() != that.remaining())
return false;
return BufferMismatch.mismatch(this, this.position(),
that, that.position(),
this.remaining()) < 0;
}
public int compareTo(CharBuffer that) {
int i = BufferMismatch.mismatch(this, this.position(),
that, that.position(),
Math.min(this.remaining(), that.remaining()));
if (i >= 0) {
return Character.compare(this.get(this.position() + i), that.get(this.position() + i));
}
return this.remaining() - that.remaining();
}
}