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8302163: Speed up various String comparison methods with ArraysSupport.mismatch

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Reviewed-by: stsypanov, rriggs, alanb
This commit is contained in:
Claes Redestad 2023-02-15 21:52:41 +00:00
parent 50dcc2aec5
commit 861e302011
5 changed files with 127 additions and 64 deletions
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8
src/java.base/share/classes/java/lang/StringLatin1.java
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@ -109,12 +109,8 @@ final class StringLatin1 {
public static int compareTo(byte[] value, byte[] other, int len1, int len2) {
int lim = Math.min(len1, len2);
for (int k = 0; k < lim; k++) {
if (value[k] != other[k]) {
return getChar(value, k) - getChar(other, k);
}
}
return len1 - len2;
int k = ArraysSupport.mismatch(value, other, lim);
return (k < 0) ? len1 - len2 : getChar(value, k) - getChar(other, k);
}
@IntrinsicCandidate