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8310929: Optimization for Integer.toString

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Reviewed-by: redestad, rriggs
This commit is contained in:
shaojin.wensj 2023-09-08 02:13:52 +00:00 • committed by Yi Yang
parent 111ecdbaf5
commit 4b43c25fe3
8 changed files with 215 additions and 172 deletions
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6
src/java.base/share/classes/java/lang/StringConcatHelper.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -250,7 +250,7 @@ final class StringConcatHelper {
*/
private static long prepend(long indexCoder, byte[] buf, int value) {
if (indexCoder < UTF16) {
return Integer.getChars(value, (int)indexCoder, buf);
return StringLatin1.getChars(value, (int)indexCoder, buf);
} else {
return StringUTF16.getChars(value, (int)indexCoder, buf) | UTF16;
}
@ -285,7 +285,7 @@ final class StringConcatHelper {
*/
private static long prepend(long indexCoder, byte[] buf, long value) {
if (indexCoder < UTF16) {
return Long.getChars(value, (int)indexCoder, buf);
return StringLatin1.getChars(value, (int)indexCoder, buf);
} else {
return StringUTF16.getChars(value, (int)indexCoder, buf) | UTF16;
}