> On Feb 27, 2018, at 7:42 AM, Claes Redestad <claes.redes...@oracle.com> wrote: > > Hi, > > when generating LF classes with InvokerBytecodeGenerator, almost 5% of > executed code is concerned with determining if members and parameters are > statically invocable and/or nameable, which we can assert is always true for > MethodHandle arguments. >
IIRC this is for the case where we can reliably crack open the method handle (from it’s member name) and invoke it directly? > Since MethodHandle targets and parameters are common, it's a profitable > startup optimization to add a fast-path test for this. > > Webrev: http://cr.openjdk.java.net/~redestad/8198755/jdk.00/ > Bug: https://bugs.openjdk.java.net/browse/JDK-8198755 > 957 for (int i = 0; i < mtype.parameterCount(); i++) 958 if (!isStaticallyNameable(mtype.parameterType(i))) Revert back to: for (Class<?> ptype : mtype.parameterArray()) if (!isStaticallyNameable(ptype)) ? Paul.
