Call Targets Not Optimized

[Cristian Esquivias]

I moved to a new system and downloaded the latest Graal VM from OTN to try
it out. When I ran IGV to see compilations none of my functions appeared. I
enabled the TruffleCallTargetProfiling and TruffleCompilationStatistics
flags and saw that none of my functions were optimized.

Am I doing something wrong? I haven't changed my code, and I'm fairly
certain compilation was triggered on my old system (I don't have access to
it anymore).

I think I set up Graal properly. I basically just call java from my
downloaded VM like I normally do. Here's the full command for reference.

~/lib/graalvm-0.16/bin/java
-Dgraal.TruffleCompilationStatistics=true
-Dgraal.TruffleCompilationExceptionsAreFatal=true
-Dgraal.TruffleCallTargetProfiling=true -Dgraal.Dump
-Dgraal.TruffleBackgroundCompilation=true -Djvmci.option.Dump -cp
$MUMBLER_LIB/antlr4-runtime-4.5.jar:$MUMBLER_LIB/lang.jar
mumbler.truffle.TruffleMumblerMain /tmp/inline-test.mumbler

My test program is a simple recursive loop that adds a number 1000+ times
to trigger compilation. Nothing fancy.

I tried to build graal per the instructions on GitHub but I get a
compilation error.

Some of the output from the flags:

Truffle compilation statistics:
  Compilations                                      : 0
    Success                                         : 0
    Failed                                          : 0
    Interrupted                                     : 0
  Invalidated                                       : 0
  Queues                                            : 7
  Dequeues                                          : 2
  Splits                                            : 0
  Compilation Accuracy                              : NaN
  Queue Accuracy                                    : 0.714286
  Compilation Utilization                           : 0.000000
  Remaining Compilation Queue                       : 6

 Call Target                                         | Total Calls     ||
Interp. Calls   | Opt. Calls      || Direct Calls    | Inlined Calls   |
Indirect Calls  || Invalidations
  [AddBuiltinNodeGen at 6e2c634b]                       |           26000 ||
        26000 |               0 ||           26000 |               0 |
          0 ||   0
  [EqualBuiltinNodeGen at 4b9af9a9]                     |           23005 ||
        23005 |               0 ||           23005 |               0 |
          0 ||   0
  [SubBuiltinNodeGen at 4d405ef7]                       |           23001 ||
        23001 |               0 ||           23001 |               0 |
          0 ||   0

Thanks,
Cristian