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8318457: Use prefix-less prepend methods directly to reduce branches in String concat expressions

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Reviewed-by: jlaskey, liach
This commit is contained in:
Claes Redestad 2023-10-20 11:37:07 +00:00
parent 71c99a0e59
commit fe52917054
3 changed files with 35 additions and 30 deletions
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5
src/java.base/share/classes/java/util/FormatItem.java
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@ -61,7 +61,7 @@ class FormatItem {
private static final MethodHandle STRING_PREPEND =
JLA.stringConcatHelper("prepend",
MethodType.methodType(long.class, long.class, byte[].class,
String.class, String.class));
String.class));
private static final MethodHandle SELECT_GETCHAR_MH =
JLA.stringConcatHelper("selectGetChar",
@ -87,8 +87,7 @@ class FormatItem {
private static long stringPrepend(long lengthCoder, byte[] buffer,
String value) throws Throwable {
return (long)STRING_PREPEND.invokeExact(lengthCoder, buffer, value,
(String)null);
return (long)STRING_PREPEND.invokeExact(lengthCoder, buffer, value);
}
private static MethodHandle selectGetChar(long indexCoder) throws Throwable {