Chanwit Kaewkasi a écrit : > Hi, > > Following Juby, my language "G7" is a Groovy-like language that also > compiles to invokedynamic ;-) > I use Groovy parser, remove its MOP layer and rewrite the code > generation class. The idea of wiring up invokedynamic is taken from > Juby implementation. > > It runs on JDK 7-b61 and it is just enough to compile Fibonacci and > some simple programs. > Unfortunately, MethodHandles.collectArguments, and dropArguments are > still NIY in b61. So, I separated fallback into 4 handles, rather than > having the single fallback. > > Another thing is that I successfully made a call to static using the > trick from John's blog by encoding callsite names with the > "static:<class>:<method>" pattern. > > Here is its GIT repository: > http://github.com/chanwit/g7/tree/parser > > For a quick look: > http://gist.github.com/133661 > > Anyway, the Fib program can run Fib(31) successfully, but JVM crashes > when I run Fib(32) and Fib(35). > > Chanwit >
Hi Chanwit, run with -Xint, the JIT doesn't work in b61, I think it should work with latest patches from mlvm repo. About your generated code, you use BIPUSH 1 instead of ICONST_1 and in the static initializer, you can use LDC with a class (a Type in ASM) instead of loading a String and relying on Class.forName(). What disassembler do you use ? I have noticed that INVOKEDYNAMIC is printed with a receiver an I fear I have forget to patch that in ASM sources. This week end, I have hacked the backport to be able to run invokedynamic, Could you please try to run your example with it ? Donwload it here: http://code.google.com/p/jvm-language-runtime/source/browse/#svn/trunk/invokedynamic-backport run ant to create the jsr292-backport.jar, it has a dependency encoded in the jar on asm3.2-all.jar And run your example (with java5 or java6) : java -javaagent:lib/jsr292-backport.jar ... Rémi _______________________________________________ mlvm-dev mailing list mlvm-dev@openjdk.java.net http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
