+PrintInlining falsly? says: never executed

[Ulf Zibis]

Am 01.12.2009 01:12, Tom Rodriguez schrieb:
>>>> I get:
>>>>    @ 180   sun.nio.cs.ext.EUC_TW_C_d_b_codeToBuffer4$Decoder::decode  never executed
>>>> and
>>>> static sun/nio/cs/ext/EUC_TW_C_d_b_codeToBuffer4$Decoder.decode(BBI[C[II)Ljava/nio/charset/CoderResult;
>>>> interpreter_invocation_count:    10001
>>>> invocation_counter:               5001
>>>> backedge_counter:                    1
>>>>    
>>>>         
>>> Where did this output come from?  Was it printed at the time it was being checked for inlining?
>>>       
>> I comes from -XX:PrintAssemblyOptions. Yes, it was printed at same time.
>>     
>
> I don't see how PrintAssemblyOptions could produce that output.  I think those counts come from the CompileCommand=print option below and those are printed at the end of the run.  So I'm guessing that at the point the compile was occurring decode actually hadn't been called.

I suspect, this had happened here, because the decode() method should 
have been executed as many times, as the JIT threshold for compiling the 
frequent branches of decodeArrayLoop().

>   The can sometimes result from inlining.  What was the whole inline tree?  I think you'd have to look into the debugger to make sure.
>   

You can find my sources here (in the test tree):
https://java-nio-charset-enhanced.dev.java.net/source/browse/java-nio-charset-enhanced/branches/j7_EUC_TW/?rev=833

The complete hsdis outputs are in the log folder.

-Ulf