RFR 8144534: Refactor templateInterpreter and templateInterpreterGenerator functions

[Lindenmaier, Goetz]

Hi Coleen,

I've been looking at this change. A cleanup in this area is really
useful. 
I missed templateInterpreter_ppc.cpp in your patch, I guess you forgot 
"hg add" for it.
In addition, I had to fix some code around math_entry_available(), see this patch:
http://cr.openjdk.java.net/~goetz/webrevs/8144534-interp/8144534-fixes_for_ppc.patch

In general, I think it's strange that AbstractInterpreterGenerator
implementations are in interpreter_<cpu>.cpp, as mentioned In the bug.
Why not move them to templateInterpreterGenerator_<cpu>.cpp? Or will
this be subject to a later change that removes the funny common 
subclasses Interpreter/InterpreterGenerator?

Should I make a change removing the CC_INTERP support from ppc?

Best regards,
  Goetz.

> -----Original Message-----
> From: hotspot-dev [mailto:hotspot-dev-bounces at openjdk.java.net] On
> Behalf Of Coleen Phillimore
> Sent: Donnerstag, 3. Dezember 2015 02:58
> To: hotspot-dev developers <hotspot-dev at openjdk.java.net>
> Subject: RFR 8144534: Refactor templateInterpreter and
> templateInterpreterGenerator functions
> 
> Summary: merged templateInterpreter_x86_32/64 into
> templateInterpreterGenerator_x86.cpp (some 32/64 functions remain for
> the hand coded crc functions).
> 
> open webrev at http://cr.openjdk.java.net/~coleenp/8144534.01/
> bug link https://bugs.openjdk.java.net/browse/JDK-8144534
> 
> I tried to make this reviewable by hg renaming files.   I basically
> renamed templateInterpreter_ppc.cpp and removed the
> AbstractInterpreter
> functions and put them back into templateInterpreter_ppc.cpp.  I didn't
> really delete 4000 lines of code, more like 1500.
> 
> Also, can someone with the PPC and AARCH port look at and test out these
> changes? I tried to reduce the #includes in the new
> templateInterpreter_ppc/aarch64.cpp files which worked for sparc.
> 
> Tested with JPRT on all platforms, also ran jtreg and
> collocated/non-collocated tonga tests for linux x64 and i386 since
> that's were the real changes are.
> 
> See the bug for more details and my partial vision of how these
> functions will be reorganized when I remove the broken c++ interpreter.
> 
> Also tested that Zero still builds.
> 
> Thanks!
> Coleen
>