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8281168: Micro-optimize VarForm.getMemberName for interpreter
Reviewed-by: redestad, vlivanov, mchung
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shipilev committed Feb 9, 2022
1 parent bce5dd1 commit fc77217
Showing 1 changed file with 7 additions and 2 deletions.
9 changes: 7 additions & 2 deletions src/java.base/share/classes/java/lang/invoke/
Expand Up @@ -109,9 +109,14 @@ final MethodType getMethodType(int type) {

final MemberName getMemberName(int mode) {
MemberName mn = getMemberNameOrNull(mode);
// Can be simplified by calling getMemberNameOrNull, but written in this
// form to improve interpreter/coldpath performance.
MemberName mn = memberName_table[mode];
if (mn == null) {
throw new UnsupportedOperationException();
mn = resolveMemberName(mode);
if (mn == null) {
throw new UnsupportedOperationException();
return mn;
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