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8297728: Cache invocation type rather than invoker in NamedFunction

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Reviewed-by: jvernee
This commit is contained in:
Claes Redestad 2022-11-30 20:53:56 +00:00
parent e9d501e442
commit 4485d4e517
1 changed files with 13 additions and 10 deletions
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23
src/java.base/share/classes/java/lang/invoke/LambdaForm.java
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@ -1089,7 +1089,7 @@ class LambdaForm {
static class NamedFunction {
final MemberName member;
private @Stable MethodHandle resolvedHandle;
@Stable MethodHandle invoker;
private @Stable MethodType type;
NamedFunction(MethodHandle resolvedHandle) {
this(resolvedHandle.internalMemberName(), resolvedHandle);
@ -1185,10 +1185,6 @@ class LambdaForm {
Object rval;
try {
traceInterpreter("[ call", this, arguments);
if (invoker == null) {
traceInterpreter("| getInvoker", this);
invoker();
}
// resolvedHandle might be uninitialized, ok for tracing
if (resolvedHandle == null) {
traceInterpreter("| resolve", this);
@ -1204,17 +1200,24 @@ class LambdaForm {
}
private MethodHandle invoker() {
if (invoker != null) return invoker;
// Get an invoker and cache it.
return invoker = computeInvoker(methodType().form());
return computeInvoker(methodType().form());
}
MethodType methodType() {
if (resolvedHandle != null)
MethodType type = this.type;
if (type == null) {
this.type = type = calculateMethodType(member, resolvedHandle);
}
return type;
}
private static MethodType calculateMethodType(MemberName member, MethodHandle resolvedHandle) {
if (resolvedHandle != null) {
return resolvedHandle.type();
else
} else {
// only for certain internal LFs during bootstrapping
return member.getInvocationType();
}
}
MemberName member() {